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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" |
8ca151b5 JB |
83 | |
84 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
85 | { | |
86 | .max = 1, | |
8eb38710 | 87 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 88 | }, |
3c15a0fb JB |
89 | { |
90 | .max = 1, | |
8eb38710 IP |
91 | .types = BIT(NL80211_IFTYPE_AP) | |
92 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
93 | BIT(NL80211_IFTYPE_P2P_GO), |
94 | }, | |
95 | { | |
96 | .max = 1, | |
97 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
98 | }, | |
8ca151b5 JB |
99 | }; |
100 | ||
101 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
102 | { | |
103 | .num_different_channels = 1, | |
104 | .max_interfaces = 3, | |
105 | .limits = iwl_mvm_limits, | |
106 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
107 | }, | |
108 | }; | |
109 | ||
f0c2646a JB |
110 | #ifdef CONFIG_PM_SLEEP |
111 | static const struct nl80211_wowlan_tcp_data_token_feature | |
112 | iwl_mvm_wowlan_tcp_token_feature = { | |
113 | .min_len = 0, | |
114 | .max_len = 255, | |
115 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
116 | }; | |
117 | ||
118 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
119 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
120 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
121 | sizeof(struct ethhdr) - | |
122 | sizeof(struct iphdr) - | |
123 | sizeof(struct tcphdr), | |
124 | .data_interval_max = 65535, /* __le16 in API */ | |
125 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
126 | sizeof(struct ethhdr) - | |
127 | sizeof(struct iphdr) - | |
128 | sizeof(struct tcphdr), | |
129 | .seq = true, | |
130 | }; | |
131 | #endif | |
132 | ||
77736923 | 133 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
134 | /* |
135 | * Use the reserved field to indicate magic values. | |
136 | * these values will only be used internally by the driver, | |
137 | * and won't make it to the fw (reserved will be 0). | |
138 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
139 | * be the vif's ip address. in case there is not a single | |
140 | * ip address (0, or more than 1), this attribute will | |
141 | * be skipped. | |
142 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
143 | * the LSB bytes of the vif's mac address | |
144 | */ | |
145 | enum { | |
146 | BC_FILTER_MAGIC_NONE = 0, | |
147 | BC_FILTER_MAGIC_IP, | |
148 | BC_FILTER_MAGIC_MAC, | |
149 | }; | |
150 | ||
77736923 EP |
151 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
152 | { | |
153 | /* arp */ | |
154 | .discard = 0, | |
155 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
156 | .attrs = { | |
157 | { | |
158 | /* frame type - arp, hw type - ethernet */ | |
159 | .offset_type = | |
160 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
161 | .offset = sizeof(rfc1042_header), | |
162 | .val = cpu_to_be32(0x08060001), | |
163 | .mask = cpu_to_be32(0xffffffff), | |
164 | }, | |
2ee8f021 EP |
165 | { |
166 | /* arp dest ip */ | |
167 | .offset_type = | |
168 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
169 | .offset = sizeof(rfc1042_header) + 2 + | |
170 | sizeof(struct arphdr) + | |
171 | ETH_ALEN + sizeof(__be32) + | |
172 | ETH_ALEN, | |
173 | .mask = cpu_to_be32(0xffffffff), | |
174 | /* mark it as special field */ | |
175 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
176 | }, | |
177 | }, | |
178 | }, | |
179 | { | |
180 | /* dhcp offer bcast */ | |
181 | .discard = 0, | |
182 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
183 | .attrs = { | |
184 | { | |
185 | /* udp dest port - 68 (bootp client)*/ | |
186 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
187 | .offset = offsetof(struct udphdr, dest), | |
188 | .val = cpu_to_be32(0x00440000), | |
189 | .mask = cpu_to_be32(0xffff0000), | |
190 | }, | |
191 | { | |
192 | /* dhcp - lsb bytes of client hw address */ | |
193 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
194 | .offset = 38, | |
195 | .mask = cpu_to_be32(0xffffffff), | |
196 | /* mark it as special field */ | |
197 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
198 | }, | |
77736923 EP |
199 | }, |
200 | }, | |
201 | /* last filter must be empty */ | |
202 | {}, | |
203 | }; | |
204 | #endif | |
205 | ||
7498cf4c EP |
206 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
207 | { | |
7bb426ea | 208 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
209 | return; |
210 | ||
211 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
212 | WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap)); | |
213 | iwl_trans_ref(mvm->trans); | |
214 | } | |
215 | ||
216 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
217 | { | |
7bb426ea | 218 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
219 | return; |
220 | ||
221 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
222 | WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap)); | |
223 | iwl_trans_unref(mvm->trans); | |
224 | } | |
225 | ||
226 | static void | |
227 | iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref) | |
228 | { | |
229 | int i; | |
230 | ||
7bb426ea | 231 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
232 | return; |
233 | ||
234 | for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) { | |
235 | if (ref == i) | |
236 | continue; | |
237 | ||
238 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i); | |
239 | clear_bit(i, mvm->ref_bitmap); | |
240 | iwl_trans_unref(mvm->trans); | |
241 | } | |
242 | } | |
243 | ||
fe0f2de3 IP |
244 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
245 | { | |
246 | int i; | |
247 | ||
248 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
249 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
250 | mvm->phy_ctxts[i].id = i; | |
251 | mvm->phy_ctxts[i].ref = 0; | |
252 | } | |
253 | } | |
254 | ||
20f1a5de DS |
255 | static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm) |
256 | { | |
257 | /* we create the 802.11 header and SSID element */ | |
258 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID) | |
259 | return mvm->fw->ucode_capa.max_probe_length - 24 - 2; | |
260 | return mvm->fw->ucode_capa.max_probe_length - 24 - 34; | |
261 | } | |
262 | ||
8ca151b5 JB |
263 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
264 | { | |
265 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 266 | int num_mac, ret, i; |
8ca151b5 JB |
267 | |
268 | /* Tell mac80211 our characteristics */ | |
269 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
270 | IEEE80211_HW_SPECTRUM_MGMT | | |
271 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
272 | IEEE80211_HW_QUEUE_CONTROL | | |
273 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
274 | IEEE80211_HW_SUPPORTS_PS | |
275 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 276 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 277 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be EG |
278 | IEEE80211_HW_CONNECTION_MONITOR | |
279 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
e8e626ad | 280 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; |
8ca151b5 | 281 | |
19e737c9 | 282 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 283 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
284 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
285 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
286 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC; | |
8ca151b5 JB |
287 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
288 | ||
289 | /* | |
290 | * Enable 11w if advertised by firmware and software crypto | |
291 | * is not enabled (as the firmware will interpret some mgmt | |
292 | * packets, so enabling it with software crypto isn't safe) | |
293 | */ | |
294 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
295 | !iwlwifi_mod_params.sw_crypto) | |
296 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
297 | ||
1504f48d MC |
298 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT && |
299 | IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 && | |
300 | !iwlwifi_mod_params.uapsd_disable) { | |
301 | hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD; | |
302 | hw->uapsd_queues = IWL_UAPSD_AC_INFO; | |
303 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
304 | } | |
e8e626ad | 305 | |
8ca151b5 JB |
306 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
307 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 308 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
309 | |
310 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
311 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
312 | BIT(NL80211_IFTYPE_AP) | | |
313 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
314 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
315 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 316 | |
a2f73b6c LR |
317 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
318 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
319 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 320 | |
3e56eadf JB |
321 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
322 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
323 | ||
bd3398e2 AO |
324 | if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW) |
325 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; | |
326 | ||
8ca151b5 JB |
327 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
328 | hw->wiphy->n_iface_combinations = | |
329 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
330 | ||
c451e6d4 | 331 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 JB |
332 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
333 | ||
334 | /* Extract MAC address */ | |
335 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
336 | hw->wiphy->addresses = mvm->addresses; | |
337 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
338 | |
339 | /* Extract additional MAC addresses if available */ | |
340 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
341 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
342 | ||
343 | for (i = 1; i < num_mac; i++) { | |
344 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 345 | ETH_ALEN); |
831e85f3 | 346 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
347 | hw->wiphy->n_addresses++; |
348 | } | |
349 | ||
fe0f2de3 IP |
350 | iwl_mvm_reset_phy_ctxts(mvm); |
351 | ||
20f1a5de DS |
352 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
353 | ||
8ca151b5 JB |
354 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
355 | ||
356 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
357 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
358 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
359 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
360 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
361 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
362 | ||
363 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
364 | ||
ade50652 | 365 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
366 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
367 | else | |
368 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
369 | ||
536a3eee EG |
370 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
371 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
372 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
373 | /* we create the 802.11 header and zero length SSID IE. */ | |
374 | hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
35a000b7 | 375 | |
8ca151b5 | 376 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 377 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
8a110d9b | 378 | NL80211_FEATURE_P2P_GO_OPPPS; |
8ca151b5 JB |
379 | |
380 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
381 | ||
e36e5433 | 382 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 383 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 384 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 385 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
386 | } |
387 | ||
8ca151b5 | 388 | #ifdef CONFIG_PM_SLEEP |
d15a747f EP |
389 | if (iwl_mvm_is_d0i3_supported(mvm) && |
390 | device_can_wakeup(mvm->trans->dev)) { | |
391 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
392 | hw->wiphy->wowlan = &mvm->wowlan; | |
393 | } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
394 | mvm->trans->ops->d3_suspend && |
395 | mvm->trans->ops->d3_resume && | |
396 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
397 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
398 | WIPHY_WOWLAN_DISCONNECT | | |
399 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
400 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 401 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
402 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
403 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
404 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
405 | ||
406 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
407 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
408 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
409 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
410 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
411 | } |
412 | #endif | |
413 | ||
77736923 EP |
414 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
415 | /* assign default bcast filtering configuration */ | |
416 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
417 | #endif | |
418 | ||
8ca151b5 JB |
419 | ret = iwl_mvm_leds_init(mvm); |
420 | if (ret) | |
421 | return ret; | |
422 | ||
b7327d89 EG |
423 | ret = ieee80211_register_hw(mvm->hw); |
424 | if (ret) | |
425 | iwl_mvm_leds_exit(mvm); | |
426 | ||
427 | return ret; | |
8ca151b5 JB |
428 | } |
429 | ||
b2492501 AN |
430 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
431 | struct ieee80211_sta *sta, | |
432 | struct sk_buff *skb) | |
433 | { | |
434 | struct iwl_mvm_sta *mvmsta; | |
435 | bool defer = false; | |
436 | ||
437 | /* | |
438 | * double check the IN_D0I3 flag both before and after | |
439 | * taking the spinlock, in order to prevent taking | |
440 | * the spinlock when not needed. | |
441 | */ | |
442 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
443 | return false; | |
444 | ||
445 | spin_lock(&mvm->d0i3_tx_lock); | |
446 | /* | |
447 | * testing the flag again ensures the skb dequeue | |
448 | * loop (on d0i3 exit) hasn't run yet. | |
449 | */ | |
450 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
451 | goto out; | |
452 | ||
453 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
454 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
455 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
456 | goto out; | |
457 | ||
458 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
459 | ieee80211_stop_queues(mvm->hw); | |
460 | ||
461 | /* trigger wakeup */ | |
462 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
463 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
464 | ||
465 | defer = true; | |
466 | out: | |
467 | spin_unlock(&mvm->d0i3_tx_lock); | |
468 | return defer; | |
469 | } | |
470 | ||
8ca151b5 JB |
471 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
472 | struct ieee80211_tx_control *control, | |
473 | struct sk_buff *skb) | |
474 | { | |
475 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
476 | struct ieee80211_sta *sta = control->sta; |
477 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
478 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 479 | |
9ee718aa EL |
480 | if (iwl_mvm_is_radio_killed(mvm)) { |
481 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
482 | goto drop; |
483 | } | |
484 | ||
398e8c6c | 485 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
486 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
487 | goto drop; | |
488 | ||
3e56eadf JB |
489 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
490 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
491 | ieee80211_is_mgmt(hdr->frame_control) && | |
492 | !ieee80211_is_deauth(hdr->frame_control) && | |
493 | !ieee80211_is_disassoc(hdr->frame_control) && | |
494 | !ieee80211_is_action(hdr->frame_control))) | |
495 | sta = NULL; | |
496 | ||
497 | if (sta) { | |
b2492501 AN |
498 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
499 | return; | |
3e56eadf | 500 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
501 | goto drop; |
502 | return; | |
503 | } | |
504 | ||
505 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
506 | goto drop; | |
507 | return; | |
508 | drop: | |
509 | ieee80211_free_txskb(hw, skb); | |
510 | } | |
511 | ||
205e2210 EG |
512 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
513 | { | |
514 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
515 | return false; | |
516 | return true; | |
517 | } | |
518 | ||
519 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
520 | { | |
521 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
522 | return false; | |
523 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
524 | return true; | |
525 | ||
526 | /* enabled by default */ | |
527 | return true; | |
528 | } | |
529 | ||
8ca151b5 JB |
530 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
531 | struct ieee80211_vif *vif, | |
532 | enum ieee80211_ampdu_mlme_action action, | |
533 | struct ieee80211_sta *sta, u16 tid, | |
534 | u16 *ssn, u8 buf_size) | |
535 | { | |
536 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
537 | int ret; | |
b2492501 | 538 | bool tx_agg_ref = false; |
8ca151b5 JB |
539 | |
540 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
541 | sta->addr, tid, action); | |
542 | ||
543 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
544 | return -EACCES; | |
545 | ||
b2492501 | 546 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
547 | switch (action) { |
548 | case IEEE80211_AMPDU_TX_START: | |
549 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
550 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
551 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
552 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 AN |
553 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX_AGG); |
554 | tx_agg_ref = true; | |
555 | ||
556 | /* | |
9256c205 EP |
557 | * for tx start, wait synchronously until D0i3 exit to |
558 | * get the correct sequence number for the tid. | |
559 | * additionally, some other ampdu actions use direct | |
560 | * target access, which is not handled automatically | |
561 | * by the trans layer (unlike commands), so wait for | |
562 | * d0i3 exit in these cases as well. | |
b2492501 AN |
563 | */ |
564 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
565 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), HZ)) { | |
566 | WARN_ON_ONCE(1); | |
567 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
568 | return -EIO; | |
569 | } | |
9256c205 EP |
570 | break; |
571 | default: | |
572 | break; | |
b2492501 AN |
573 | } |
574 | ||
8ca151b5 JB |
575 | mutex_lock(&mvm->mutex); |
576 | ||
577 | switch (action) { | |
578 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 579 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
580 | ret = -EINVAL; |
581 | break; | |
582 | } | |
583 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
584 | break; | |
585 | case IEEE80211_AMPDU_RX_STOP: | |
586 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
587 | break; | |
588 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 589 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
590 | ret = -EINVAL; |
591 | break; | |
592 | } | |
8ca151b5 JB |
593 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
594 | break; | |
595 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
596 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
597 | break; | |
8ca151b5 JB |
598 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
599 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 600 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
601 | break; |
602 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
603 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
604 | break; | |
605 | default: | |
606 | WARN_ON_ONCE(1); | |
607 | ret = -EINVAL; | |
608 | break; | |
609 | } | |
610 | mutex_unlock(&mvm->mutex); | |
611 | ||
b2492501 AN |
612 | /* |
613 | * If the tid is marked as started, we won't use it for offloaded | |
614 | * traffic on the next D0i3 entry. It's safe to unref. | |
615 | */ | |
616 | if (tx_agg_ref) | |
617 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
618 | ||
8ca151b5 JB |
619 | return ret; |
620 | } | |
621 | ||
622 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
623 | struct ieee80211_vif *vif) | |
624 | { | |
625 | struct iwl_mvm *mvm = data; | |
626 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
627 | ||
628 | mvmvif->uploaded = false; | |
629 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
630 | ||
631 | /* does this make sense at all? */ | |
632 | mvmvif->color++; | |
633 | ||
634 | spin_lock_bh(&mvm->time_event_lock); | |
635 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
636 | spin_unlock_bh(&mvm->time_event_lock); | |
637 | ||
fe0f2de3 | 638 | mvmvif->phy_ctxt = NULL; |
8ca151b5 JB |
639 | } |
640 | ||
641 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
642 | { | |
1bd3cbc1 EG |
643 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
644 | static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL }; | |
645 | ||
646 | iwl_mvm_fw_error_dump(mvm); | |
647 | ||
648 | /* notify the userspace about the error we had */ | |
649 | kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
650 | #endif | |
651 | ||
8ca151b5 | 652 | iwl_trans_stop_device(mvm->trans); |
8ca151b5 JB |
653 | |
654 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
655 | ||
656 | /* just in case one was running */ | |
657 | ieee80211_remain_on_channel_expired(mvm->hw); | |
658 | ||
659 | ieee80211_iterate_active_interfaces_atomic( | |
660 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
661 | iwl_mvm_cleanup_iterator, mvm); | |
662 | ||
fe0f2de3 | 663 | mvm->p2p_device_vif = NULL; |
37577fe2 | 664 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
665 | |
666 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
667 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
668 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
669 | ||
670 | ieee80211_wake_queues(mvm->hw); | |
671 | ||
7498cf4c EP |
672 | /* cleanup all stale references (scan, roc), but keep the |
673 | * ucode_down ref until reconfig is complete */ | |
674 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
675 | ||
8ca151b5 | 676 | mvm->vif_count = 0; |
113a0447 | 677 | mvm->rx_ba_sessions = 0; |
8ca151b5 JB |
678 | } |
679 | ||
680 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
681 | { | |
682 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
683 | int ret; | |
684 | ||
685 | mutex_lock(&mvm->mutex); | |
686 | ||
687 | /* Clean up some internal and mac80211 state on restart */ | |
688 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
689 | iwl_mvm_restart_cleanup(mvm); | |
690 | ||
691 | ret = iwl_mvm_up(mvm); | |
692 | mutex_unlock(&mvm->mutex); | |
693 | ||
694 | return ret; | |
695 | } | |
696 | ||
697 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
698 | { | |
699 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
700 | int ret; | |
701 | ||
702 | mutex_lock(&mvm->mutex); | |
703 | ||
704 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 705 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
8ca151b5 JB |
706 | ret = iwl_mvm_update_quotas(mvm, NULL); |
707 | if (ret) | |
708 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
709 | ret); | |
710 | ||
7498cf4c EP |
711 | /* allow transport/FW low power modes */ |
712 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
713 | ||
8ca151b5 JB |
714 | mutex_unlock(&mvm->mutex); |
715 | } | |
716 | ||
717 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
718 | { | |
719 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
720 | ||
37577fe2 | 721 | flush_work(&mvm->d0i3_exit_work); |
8ca151b5 JB |
722 | flush_work(&mvm->async_handlers_wk); |
723 | ||
724 | mutex_lock(&mvm->mutex); | |
7498cf4c EP |
725 | |
726 | /* disallow low power states when the FW is down */ | |
727 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
728 | ||
8ca151b5 JB |
729 | /* async_handlers_wk is now blocked */ |
730 | ||
731 | /* | |
732 | * The work item could be running or queued if the | |
733 | * ROC time event stops just as we get here. | |
734 | */ | |
735 | cancel_work_sync(&mvm->roc_done_wk); | |
736 | ||
737 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
738 | |
739 | iwl_mvm_async_handlers_purge(mvm); | |
740 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
741 | ||
742 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
743 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
744 | ||
745 | mutex_unlock(&mvm->mutex); | |
746 | ||
747 | /* | |
748 | * The worker might have been waiting for the mutex, let it run and | |
749 | * discover that its list is now empty. | |
750 | */ | |
751 | cancel_work_sync(&mvm->async_handlers_wk); | |
752 | } | |
753 | ||
fe0f2de3 IP |
754 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
755 | { | |
756 | u16 i; | |
757 | ||
758 | lockdep_assert_held(&mvm->mutex); | |
759 | ||
760 | for (i = 0; i < NUM_PHY_CTX; i++) | |
761 | if (!mvm->phy_ctxts[i].ref) | |
762 | return &mvm->phy_ctxts[i]; | |
763 | ||
764 | IWL_ERR(mvm, "No available PHY context\n"); | |
765 | return NULL; | |
766 | } | |
767 | ||
ee9c6cb0 EG |
768 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
769 | s8 tx_power) | |
770 | { | |
771 | /* FW is in charge of regulatory enforcement */ | |
772 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
773 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
774 | .pwr_restriction = cpu_to_le16(tx_power), | |
775 | }; | |
776 | ||
a1022927 | 777 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, |
ee9c6cb0 EG |
778 | sizeof(reduce_txpwr_cmd), |
779 | &reduce_txpwr_cmd); | |
780 | } | |
781 | ||
8ca151b5 JB |
782 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
783 | struct ieee80211_vif *vif) | |
784 | { | |
785 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
786 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
787 | int ret; | |
788 | ||
789 | /* | |
790 | * Not much to do here. The stack will not allow interface | |
791 | * types or combinations that we didn't advertise, so we | |
792 | * don't really have to check the types. | |
793 | */ | |
794 | ||
795 | mutex_lock(&mvm->mutex); | |
796 | ||
e89044d7 | 797 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
798 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
799 | if (ret) | |
800 | goto out_unlock; | |
801 | ||
1c2abf72 | 802 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
803 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
804 | mvm->vif_count++; | |
ea183d02 | 805 | |
8ca151b5 JB |
806 | /* |
807 | * The AP binding flow can be done only after the beacon | |
808 | * template is configured (which happens only in the mac80211 | |
809 | * start_ap() flow), and adding the broadcast station can happen | |
810 | * only after the binding. | |
811 | * In addition, since modifying the MAC before adding a bcast | |
812 | * station is not allowed by the FW, delay the adding of MAC context to | |
813 | * the point where we can also add the bcast station. | |
814 | * In short: there's not much we can do at this point, other than | |
815 | * allocating resources :) | |
816 | */ | |
5023d966 JB |
817 | if (vif->type == NL80211_IFTYPE_AP || |
818 | vif->type == NL80211_IFTYPE_ADHOC) { | |
8ca151b5 JB |
819 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); |
820 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
b92e661b EP |
821 | qmask, |
822 | ieee80211_vif_type_p2p(vif)); | |
8ca151b5 JB |
823 | if (ret) { |
824 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
825 | goto out_release; | |
826 | } | |
827 | ||
77740cb4 | 828 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
829 | goto out_unlock; |
830 | } | |
831 | ||
8ca151b5 JB |
832 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
833 | if (ret) | |
834 | goto out_release; | |
835 | ||
999609f1 | 836 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e EG |
837 | if (ret) |
838 | goto out_release; | |
8ca151b5 | 839 | |
7df15b1e | 840 | /* beacon filtering */ |
a1022927 | 841 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
842 | if (ret) |
843 | goto out_remove_mac; | |
844 | ||
7df15b1e | 845 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 846 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 847 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
848 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
849 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
850 | } |
851 | ||
8ca151b5 JB |
852 | /* |
853 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
854 | * so a dedicated PHY context is allocated to it and the corresponding | |
855 | * MAC context is bound to it at this stage. | |
856 | */ | |
857 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 858 | |
fe0f2de3 IP |
859 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
860 | if (!mvmvif->phy_ctxt) { | |
861 | ret = -ENOSPC; | |
bd3351ba | 862 | goto out_free_bf; |
fe0f2de3 | 863 | } |
8ca151b5 | 864 | |
53a9d61e | 865 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
866 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
867 | if (ret) | |
53a9d61e | 868 | goto out_unref_phy; |
8ca151b5 JB |
869 | |
870 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
871 | if (ret) | |
872 | goto out_unbind; | |
873 | ||
874 | /* Save a pointer to p2p device vif, so it can later be used to | |
875 | * update the p2p device MAC when a GO is started/stopped */ | |
876 | mvm->p2p_device_vif = vif; | |
877 | } | |
878 | ||
63494374 | 879 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
880 | goto out_unlock; |
881 | ||
882 | out_unbind: | |
883 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 884 | out_unref_phy: |
fe0f2de3 | 885 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
886 | out_free_bf: |
887 | if (mvm->bf_allowed_vif == mvmvif) { | |
888 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
889 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
890 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 891 | } |
8ca151b5 JB |
892 | out_remove_mac: |
893 | mvmvif->phy_ctxt = NULL; | |
894 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
895 | out_release: | |
5ee2b215 AB |
896 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
897 | mvm->vif_count--; | |
1c2abf72 | 898 | |
8ca151b5 JB |
899 | iwl_mvm_mac_ctxt_release(mvm, vif); |
900 | out_unlock: | |
901 | mutex_unlock(&mvm->mutex); | |
902 | ||
903 | return ret; | |
904 | } | |
905 | ||
38a12b5b JB |
906 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
907 | struct ieee80211_vif *vif) | |
8ca151b5 | 908 | { |
8ca151b5 JB |
909 | u32 tfd_msk = 0, ac; |
910 | ||
911 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
912 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
913 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
914 | ||
915 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
916 | tfd_msk |= BIT(vif->cab_queue); | |
917 | ||
918 | if (tfd_msk) { | |
919 | mutex_lock(&mvm->mutex); | |
920 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
921 | mutex_unlock(&mvm->mutex); | |
922 | } | |
923 | ||
924 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
925 | /* | |
926 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
927 | * We assume here that all the packets sent to the OFFCHANNEL | |
928 | * queue are sent in ROC session. | |
929 | */ | |
930 | flush_work(&mvm->roc_done_wk); | |
931 | } else { | |
932 | /* | |
933 | * By now, all the AC queues are empty. The AGG queues are | |
934 | * empty too. We already got all the Tx responses for all the | |
935 | * packets in the queues. The drain work can have been | |
0742a75a | 936 | * triggered. Flush it. |
8ca151b5 JB |
937 | */ |
938 | flush_work(&mvm->sta_drained_wk); | |
939 | } | |
38a12b5b JB |
940 | } |
941 | ||
942 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
943 | struct ieee80211_vif *vif) | |
944 | { | |
945 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
946 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
947 | ||
948 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
949 | |
950 | mutex_lock(&mvm->mutex); | |
951 | ||
7df15b1e HG |
952 | if (mvm->bf_allowed_vif == mvmvif) { |
953 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
954 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
955 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
956 | } |
957 | ||
63494374 JB |
958 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
959 | ||
8ca151b5 JB |
960 | /* |
961 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 962 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 963 | */ |
5023d966 JB |
964 | if (vif->type == NL80211_IFTYPE_AP || |
965 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
966 | #ifdef CONFIG_NL80211_TESTMODE |
967 | if (vif == mvm->noa_vif) { | |
968 | mvm->noa_vif = NULL; | |
969 | mvm->noa_duration = 0; | |
970 | } | |
971 | #endif | |
8ca151b5 JB |
972 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); |
973 | goto out_release; | |
974 | } | |
975 | ||
976 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
977 | mvm->p2p_device_vif = NULL; | |
978 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
979 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 980 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
981 | mvmvif->phy_ctxt = NULL; |
982 | } | |
983 | ||
5ee2b215 | 984 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 985 | mvm->vif_count--; |
1c2abf72 | 986 | |
999609f1 | 987 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
988 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
989 | ||
990 | out_release: | |
991 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
992 | mutex_unlock(&mvm->mutex); | |
993 | } | |
994 | ||
995 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 996 | { |
8ca151b5 JB |
997 | return 0; |
998 | } | |
999 | ||
e59647ea EP |
1000 | struct iwl_mvm_mc_iter_data { |
1001 | struct iwl_mvm *mvm; | |
1002 | int port_id; | |
1003 | }; | |
1004 | ||
1005 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1006 | struct ieee80211_vif *vif) | |
1007 | { | |
1008 | struct iwl_mvm_mc_iter_data *data = _data; | |
1009 | struct iwl_mvm *mvm = data->mvm; | |
1010 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1011 | int ret, len; | |
1012 | ||
1013 | /* if we don't have free ports, mcast frames will be dropped */ | |
1014 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1015 | return; | |
1016 | ||
1017 | if (vif->type != NL80211_IFTYPE_STATION || | |
1018 | !vif->bss_conf.assoc) | |
1019 | return; | |
1020 | ||
1021 | cmd->port_id = data->port_id++; | |
1022 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1023 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1024 | ||
1c4abec0 | 1025 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1026 | if (ret) |
1027 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1028 | } | |
1029 | ||
1030 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1031 | { | |
1032 | struct iwl_mvm_mc_iter_data iter_data = { | |
1033 | .mvm = mvm, | |
88f2fd73 MG |
1034 | }; |
1035 | ||
e59647ea EP |
1036 | lockdep_assert_held(&mvm->mutex); |
1037 | ||
1038 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1039 | return; | |
1040 | ||
1c4abec0 | 1041 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1042 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1043 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1044 | } |
1045 | ||
e59647ea EP |
1046 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1047 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1048 | { |
e59647ea EP |
1049 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1050 | struct iwl_mcast_filter_cmd *cmd; | |
1051 | struct netdev_hw_addr *addr; | |
1052 | int addr_count = netdev_hw_addr_list_count(mc_list); | |
1053 | bool pass_all = false; | |
1054 | int len; | |
1055 | ||
1056 | if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) { | |
1057 | pass_all = true; | |
1058 | addr_count = 0; | |
1059 | } | |
1060 | ||
1061 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1062 | cmd = kzalloc(len, GFP_ATOMIC); | |
1063 | if (!cmd) | |
1064 | return 0; | |
1065 | ||
1066 | if (pass_all) { | |
1067 | cmd->pass_all = 1; | |
1068 | return (u64)(unsigned long)cmd; | |
1069 | } | |
1070 | ||
1071 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1072 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1073 | cmd->count, addr->addr); | |
1074 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1075 | addr->addr, ETH_ALEN); | |
1076 | cmd->count++; | |
1077 | } | |
1078 | ||
1079 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1080 | } |
1081 | ||
1082 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1083 | unsigned int changed_flags, | |
1084 | unsigned int *total_flags, | |
1085 | u64 multicast) | |
1086 | { | |
e59647ea EP |
1087 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1088 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1089 | |
e59647ea | 1090 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1091 | |
e59647ea EP |
1092 | /* replace previous configuration */ |
1093 | kfree(mvm->mcast_filter_cmd); | |
1094 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1095 | |
e59647ea EP |
1096 | if (!cmd) |
1097 | goto out; | |
51b6b9e0 | 1098 | |
e59647ea EP |
1099 | iwl_mvm_recalc_multicast(mvm); |
1100 | out: | |
1101 | mutex_unlock(&mvm->mutex); | |
1102 | *total_flags = 0; | |
51b6b9e0 EG |
1103 | } |
1104 | ||
c87163b9 EP |
1105 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1106 | struct iwl_bcast_iter_data { | |
1107 | struct iwl_mvm *mvm; | |
1108 | struct iwl_bcast_filter_cmd *cmd; | |
1109 | u8 current_filter; | |
1110 | }; | |
1111 | ||
1112 | static void | |
1113 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1114 | const struct iwl_fw_bcast_filter *in_filter, | |
1115 | struct iwl_fw_bcast_filter *out_filter) | |
1116 | { | |
1117 | struct iwl_fw_bcast_filter_attr *attr; | |
1118 | int i; | |
1119 | ||
1120 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1121 | ||
1122 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1123 | attr = &out_filter->attrs[i]; | |
1124 | ||
1125 | if (!attr->mask) | |
1126 | break; | |
1127 | ||
2ee8f021 EP |
1128 | switch (attr->reserved1) { |
1129 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1130 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1131 | attr->mask = 0; | |
1132 | continue; | |
1133 | } | |
1134 | ||
1135 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1136 | break; | |
1137 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1138 | attr->val = *(__be32 *)&vif->addr[2]; | |
1139 | break; | |
1140 | default: | |
1141 | break; | |
1142 | } | |
1143 | attr->reserved1 = 0; | |
c87163b9 EP |
1144 | out_filter->num_attrs++; |
1145 | } | |
1146 | } | |
1147 | ||
1148 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1149 | struct ieee80211_vif *vif) | |
1150 | { | |
1151 | struct iwl_bcast_iter_data *data = _data; | |
1152 | struct iwl_mvm *mvm = data->mvm; | |
1153 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1154 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1155 | struct iwl_fw_bcast_mac *bcast_mac; | |
1156 | int i; | |
1157 | ||
1158 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1159 | return; | |
1160 | ||
1161 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1162 | ||
1163 | /* enable filtering only for associated stations */ | |
1164 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) | |
1165 | return; | |
1166 | ||
1167 | bcast_mac->default_discard = 1; | |
1168 | ||
1169 | /* copy all configured filters */ | |
1170 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1171 | /* | |
1172 | * Make sure we don't exceed our filters limit. | |
1173 | * if there is still a valid filter to be configured, | |
1174 | * be on the safe side and just allow bcast for this mac. | |
1175 | */ | |
1176 | if (WARN_ON_ONCE(data->current_filter >= | |
1177 | ARRAY_SIZE(cmd->filters))) { | |
1178 | bcast_mac->default_discard = 0; | |
1179 | bcast_mac->attached_filters = 0; | |
1180 | break; | |
1181 | } | |
1182 | ||
1183 | iwl_mvm_set_bcast_filter(vif, | |
1184 | &mvm->bcast_filters[i], | |
1185 | &cmd->filters[data->current_filter]); | |
1186 | ||
1187 | /* skip current filter if it contains no attributes */ | |
1188 | if (!cmd->filters[data->current_filter].num_attrs) | |
1189 | continue; | |
1190 | ||
1191 | /* attach the filter to current mac */ | |
1192 | bcast_mac->attached_filters |= | |
1193 | cpu_to_le16(BIT(data->current_filter)); | |
1194 | ||
1195 | data->current_filter++; | |
1196 | } | |
1197 | } | |
1198 | ||
de06a59e EP |
1199 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1200 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1201 | { |
c87163b9 EP |
1202 | struct iwl_bcast_iter_data iter_data = { |
1203 | .mvm = mvm, | |
de06a59e | 1204 | .cmd = cmd, |
c87163b9 EP |
1205 | }; |
1206 | ||
de06a59e EP |
1207 | memset(cmd, 0, sizeof(*cmd)); |
1208 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1209 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1210 | ||
1211 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1212 | /* use debugfs filters/macs if override is configured */ | |
1213 | if (mvm->dbgfs_bcast_filtering.override) { | |
1214 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1215 | sizeof(cmd->filters)); | |
1216 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1217 | sizeof(cmd->macs)); | |
1218 | return true; | |
1219 | } | |
1220 | #endif | |
c87163b9 EP |
1221 | |
1222 | /* if no filters are configured, do nothing */ | |
1223 | if (!mvm->bcast_filters) | |
de06a59e | 1224 | return false; |
c87163b9 EP |
1225 | |
1226 | /* configure and attach these filters for each associated sta vif */ | |
1227 | ieee80211_iterate_active_interfaces( | |
1228 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1229 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1230 | ||
de06a59e EP |
1231 | return true; |
1232 | } | |
1233 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1234 | struct ieee80211_vif *vif) | |
1235 | { | |
1236 | struct iwl_bcast_filter_cmd cmd; | |
1237 | ||
1238 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1239 | return 0; | |
1240 | ||
003e3c4e EG |
1241 | /* bcast filtering isn't supported for P2P client */ |
1242 | if (vif->p2p) | |
1243 | return 0; | |
1244 | ||
de06a59e EP |
1245 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) |
1246 | return 0; | |
1247 | ||
a1022927 | 1248 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1249 | sizeof(cmd), &cmd); |
1250 | } | |
1251 | #else | |
1252 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1253 | struct ieee80211_vif *vif) | |
1254 | { | |
1255 | return 0; | |
1256 | } | |
1257 | #endif | |
1258 | ||
8ca151b5 JB |
1259 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1260 | struct ieee80211_vif *vif, | |
1261 | struct ieee80211_bss_conf *bss_conf, | |
1262 | u32 changes) | |
1263 | { | |
1264 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1265 | int ret; | |
1266 | ||
6e97b0d2 IP |
1267 | /* |
1268 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1269 | * beacon interval, which was not known when the station interface was | |
1270 | * added. | |
1271 | */ | |
1272 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1273 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1274 | ||
bca49d9a | 1275 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
8ca151b5 JB |
1276 | if (ret) |
1277 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1278 | ||
1279 | if (changes & BSS_CHANGED_ASSOC) { | |
1280 | if (bss_conf->assoc) { | |
1281 | /* add quota for this interface */ | |
1282 | ret = iwl_mvm_update_quotas(mvm, vif); | |
1283 | if (ret) { | |
1284 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1285 | return; | |
1286 | } | |
016d27e1 JB |
1287 | |
1288 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1289 | &mvm->status)) { | |
1290 | /* | |
1291 | * If we're restarting then the firmware will | |
1292 | * obviously have lost synchronisation with | |
1293 | * the AP. It will attempt to synchronise by | |
1294 | * itself, but we can make it more reliable by | |
1295 | * scheduling a session protection time event. | |
1296 | * | |
1297 | * The firmware needs to receive a beacon to | |
1298 | * catch up with synchronisation, use 110% of | |
1299 | * the beacon interval. | |
1300 | * | |
1301 | * Set a large maximum delay to allow for more | |
1302 | * than a single interface. | |
1303 | */ | |
1304 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1305 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
1306 | 5 * dur); | |
1307 | } | |
1f3b0ff8 LE |
1308 | |
1309 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1310 | iwl_mvm_power_vif_assoc(mvm, vif); |
29a90a49 EP |
1311 | if (vif->p2p) |
1312 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
8ca151b5 | 1313 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
1314 | /* |
1315 | * If update fails - SF might be running in associated | |
1316 | * mode while disassociated - which is forbidden. | |
1317 | */ | |
1318 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1319 | "Failed to update SF upon disassociation\n"); | |
1320 | ||
8ca151b5 JB |
1321 | /* remove AP station now that the MAC is unassoc */ |
1322 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
1323 | if (ret) | |
1324 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
1325 | |
1326 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
1327 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
1328 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
1329 | /* remove quota for this interface */ | |
1330 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
1331 | if (ret) | |
1332 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
1333 | |
1334 | if (vif->p2p) | |
1335 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
8ca151b5 | 1336 | } |
a20fd398 | 1337 | |
e59647ea | 1338 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 1339 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 1340 | |
a20fd398 AO |
1341 | /* reset rssi values */ |
1342 | mvmvif->bf_data.ave_beacon_signal = 0; | |
1343 | ||
8e484f0b | 1344 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
1345 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
1346 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 1347 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
1348 | /* |
1349 | * We received a beacon _after_ association so | |
1350 | * remove the session protection. | |
1351 | */ | |
1352 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
1353 | &mvmvif->time_event_data); | |
0229cdaf | 1354 | iwl_mvm_sf_update(mvm, vif, false); |
a1022927 | 1355 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
51498cf6 AB |
1356 | } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | |
1357 | BSS_CHANGED_QOS)) { | |
999609f1 | 1358 | ret = iwl_mvm_power_update_mac(mvm); |
4bf881f5 AB |
1359 | if (ret) |
1360 | IWL_ERR(mvm, "failed to update power mode\n"); | |
8ca151b5 | 1361 | } |
88f2fd73 MG |
1362 | if (changes & BSS_CHANGED_TXPOWER) { |
1363 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
1364 | bss_conf->txpower); | |
1365 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
1366 | } | |
a20fd398 AO |
1367 | |
1368 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 1369 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
1370 | /* reset cqm events tracking */ |
1371 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
1372 | if (mvmvif->bf_data.bf_enabled) { |
1373 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
1374 | if (ret) | |
1375 | IWL_ERR(mvm, | |
1376 | "failed to update CQM thresholds\n"); | |
1377 | } | |
a20fd398 | 1378 | } |
2ee8f021 EP |
1379 | |
1380 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 1381 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
2ee8f021 EP |
1382 | iwl_mvm_configure_bcast_filter(mvm, vif); |
1383 | } | |
8ca151b5 JB |
1384 | } |
1385 | ||
5023d966 JB |
1386 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
1387 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1388 | { |
1389 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1390 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1391 | int ret; | |
1392 | ||
1393 | mutex_lock(&mvm->mutex); | |
1394 | ||
1395 | /* Send the beacon template */ | |
1396 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
1397 | if (ret) | |
1398 | goto out_unlock; | |
1399 | ||
6e97b0d2 IP |
1400 | /* |
1401 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1402 | * beacon interval, which was not known when the AP interface was added. | |
1403 | */ | |
1404 | if (vif->type == NL80211_IFTYPE_AP) | |
1405 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1406 | ||
8ca151b5 JB |
1407 | /* Add the mac context */ |
1408 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
1409 | if (ret) | |
1410 | goto out_unlock; | |
1411 | ||
1412 | /* Perform the binding */ | |
1413 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1414 | if (ret) | |
1415 | goto out_remove; | |
1416 | ||
8ca151b5 JB |
1417 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
1418 | * are added and applied to the scheduler */ | |
1419 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
1420 | if (ret) | |
1421 | goto out_unbind; | |
1422 | ||
5691e218 IP |
1423 | /* must be set before quota calculations */ |
1424 | mvmvif->ap_ibss_active = true; | |
1425 | ||
a11e144e | 1426 | /* power updated needs to be done before quotas */ |
999609f1 | 1427 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 1428 | |
8ca151b5 JB |
1429 | ret = iwl_mvm_update_quotas(mvm, vif); |
1430 | if (ret) | |
a11e144e | 1431 | goto out_quota_failed; |
8ca151b5 | 1432 | |
5023d966 | 1433 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 1434 | if (vif->p2p && mvm->p2p_device_vif) |
bca49d9a | 1435 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); |
8ca151b5 | 1436 | |
29a90a49 EP |
1437 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
1438 | ||
8e484f0b | 1439 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1440 | |
8ca151b5 JB |
1441 | mutex_unlock(&mvm->mutex); |
1442 | return 0; | |
1443 | ||
a11e144e | 1444 | out_quota_failed: |
999609f1 | 1445 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 1446 | mvmvif->ap_ibss_active = false; |
8ca151b5 JB |
1447 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); |
1448 | out_unbind: | |
1449 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1450 | out_remove: | |
1451 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1452 | out_unlock: | |
1453 | mutex_unlock(&mvm->mutex); | |
1454 | return ret; | |
1455 | } | |
1456 | ||
5023d966 JB |
1457 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
1458 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1459 | { |
1460 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1461 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1462 | ||
38a12b5b JB |
1463 | iwl_mvm_prepare_mac_removal(mvm, vif); |
1464 | ||
8ca151b5 JB |
1465 | mutex_lock(&mvm->mutex); |
1466 | ||
5023d966 | 1467 | mvmvif->ap_ibss_active = false; |
8ca151b5 | 1468 | |
8e484f0b | 1469 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1470 | |
29a90a49 EP |
1471 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
1472 | ||
5023d966 | 1473 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 1474 | if (vif->p2p && mvm->p2p_device_vif) |
bca49d9a | 1475 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); |
8ca151b5 JB |
1476 | |
1477 | iwl_mvm_update_quotas(mvm, NULL); | |
1478 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
1479 | iwl_mvm_binding_remove_vif(mvm, vif); | |
a11e144e | 1480 | |
999609f1 | 1481 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 1482 | |
8ca151b5 JB |
1483 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1484 | ||
1485 | mutex_unlock(&mvm->mutex); | |
1486 | } | |
1487 | ||
5023d966 JB |
1488 | static void |
1489 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
1490 | struct ieee80211_vif *vif, | |
1491 | struct ieee80211_bss_conf *bss_conf, | |
1492 | u32 changes) | |
8ca151b5 | 1493 | { |
be2056fc | 1494 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 1495 | |
be2056fc IP |
1496 | /* Changes will be applied when the AP/IBSS is started */ |
1497 | if (!mvmvif->ap_ibss_active) | |
1498 | return; | |
1499 | ||
863230da JB |
1500 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
1501 | BSS_CHANGED_BANDWIDTH) && | |
bca49d9a | 1502 | iwl_mvm_mac_ctxt_changed(mvm, vif, false)) |
863230da | 1503 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 1504 | |
8ca151b5 | 1505 | /* Need to send a new beacon template to the FW */ |
863230da JB |
1506 | if (changes & BSS_CHANGED_BEACON && |
1507 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
1508 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
8ca151b5 JB |
1509 | } |
1510 | ||
1511 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
1512 | struct ieee80211_vif *vif, | |
1513 | struct ieee80211_bss_conf *bss_conf, | |
1514 | u32 changes) | |
1515 | { | |
1516 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1517 | ||
1518 | mutex_lock(&mvm->mutex); | |
1519 | ||
723f02ed DS |
1520 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
1521 | iwl_mvm_sched_scan_stop(mvm, true); | |
1522 | ||
8ca151b5 JB |
1523 | switch (vif->type) { |
1524 | case NL80211_IFTYPE_STATION: | |
1525 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
1526 | break; | |
1527 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
1528 | case NL80211_IFTYPE_ADHOC: |
1529 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
1530 | break; |
1531 | default: | |
1532 | /* shouldn't happen */ | |
1533 | WARN_ON_ONCE(1); | |
1534 | } | |
1535 | ||
1536 | mutex_unlock(&mvm->mutex); | |
1537 | } | |
1538 | ||
1539 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
1540 | struct ieee80211_vif *vif, | |
1541 | struct cfg80211_scan_request *req) | |
1542 | { | |
1543 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1544 | int ret; | |
1545 | ||
762533ba DS |
1546 | if (req->n_channels == 0 || |
1547 | req->n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
1548 | return -EINVAL; |
1549 | ||
1550 | mutex_lock(&mvm->mutex); | |
1551 | ||
a6623e84 JB |
1552 | switch (mvm->scan_status) { |
1553 | case IWL_MVM_SCAN_SCHED: | |
636a2cdc | 1554 | ret = iwl_mvm_sched_scan_stop(mvm, true); |
a6623e84 JB |
1555 | if (ret) { |
1556 | ret = -EBUSY; | |
1557 | goto out; | |
1558 | } | |
a6623e84 JB |
1559 | break; |
1560 | case IWL_MVM_SCAN_NONE: | |
1561 | break; | |
1562 | default: | |
8ca151b5 | 1563 | ret = -EBUSY; |
519e2026 AN |
1564 | goto out; |
1565 | } | |
8ca151b5 | 1566 | |
519e2026 AN |
1567 | iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN); |
1568 | ||
1569 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
1570 | if (ret) | |
1571 | iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); | |
1572 | out: | |
8ca151b5 | 1573 | mutex_unlock(&mvm->mutex); |
33ea27f6 AN |
1574 | /* make sure to flush the Rx handler before the next scan arrives */ |
1575 | iwl_mvm_wait_for_async_handlers(mvm); | |
8ca151b5 JB |
1576 | return ret; |
1577 | } | |
1578 | ||
1579 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
1580 | struct ieee80211_vif *vif) | |
1581 | { | |
1582 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1583 | ||
1584 | mutex_lock(&mvm->mutex); | |
1585 | ||
1586 | iwl_mvm_cancel_scan(mvm); | |
1587 | ||
1588 | mutex_unlock(&mvm->mutex); | |
1589 | } | |
1590 | ||
1591 | static void | |
1592 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 1593 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
1594 | int num_frames, |
1595 | enum ieee80211_frame_release_type reason, | |
1596 | bool more_data) | |
1597 | { | |
1598 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 1599 | |
3e56eadf | 1600 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 1601 | |
3e56eadf JB |
1602 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
1603 | tids, more_data, false); | |
1604 | } | |
1605 | ||
1606 | static void | |
1607 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
1608 | struct ieee80211_sta *sta, u16 tids, | |
1609 | int num_frames, | |
1610 | enum ieee80211_frame_release_type reason, | |
1611 | bool more_data) | |
1612 | { | |
1613 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1614 | ||
1615 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
1616 | ||
1617 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
1618 | tids, more_data, true); | |
8ca151b5 JB |
1619 | } |
1620 | ||
1621 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
1622 | struct ieee80211_vif *vif, | |
1623 | enum sta_notify_cmd cmd, | |
1624 | struct ieee80211_sta *sta) | |
1625 | { | |
1626 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 1627 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3e56eadf | 1628 | int tid; |
8ca151b5 JB |
1629 | |
1630 | switch (cmd) { | |
1631 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 1632 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 1633 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf JB |
1634 | spin_lock_bh(&mvmsta->lock); |
1635 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1636 | struct iwl_mvm_tid_data *tid_data; | |
1637 | ||
1638 | tid_data = &mvmsta->tid_data[tid]; | |
1639 | if (tid_data->state != IWL_AGG_ON && | |
1640 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
1641 | continue; | |
1642 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
1643 | continue; | |
1644 | ieee80211_sta_set_buffered(sta, tid, true); | |
1645 | } | |
1646 | spin_unlock_bh(&mvmsta->lock); | |
8ca151b5 JB |
1647 | /* |
1648 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
1649 | * queues to this station will not be transmitted. The fw will | |
1650 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
1651 | */ | |
1652 | break; | |
1653 | case STA_NOTIFY_AWAKE: | |
881acd89 | 1654 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 1655 | break; |
9cc40712 | 1656 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
1657 | break; |
1658 | default: | |
1659 | break; | |
1660 | } | |
1661 | } | |
1662 | ||
1ddbbb0c JB |
1663 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
1664 | struct ieee80211_vif *vif, | |
1665 | struct ieee80211_sta *sta) | |
1666 | { | |
1667 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1668 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1669 | ||
1670 | /* | |
1671 | * This is called before mac80211 does RCU synchronisation, | |
1672 | * so here we already invalidate our internal RCU-protected | |
1673 | * station pointer. The rest of the code will thus no longer | |
1674 | * be able to find the station this way, and we don't rely | |
1675 | * on further RCU synchronisation after the sta_state() | |
1676 | * callback deleted the station. | |
1677 | */ | |
1678 | mutex_lock(&mvm->mutex); | |
1679 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
1680 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
1681 | ERR_PTR(-ENOENT)); | |
1682 | mutex_unlock(&mvm->mutex); | |
1683 | } | |
1684 | ||
8ca151b5 JB |
1685 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
1686 | struct ieee80211_vif *vif, | |
1687 | struct ieee80211_sta *sta, | |
1688 | enum ieee80211_sta_state old_state, | |
1689 | enum ieee80211_sta_state new_state) | |
1690 | { | |
1691 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1692 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1693 | int ret; | |
1694 | ||
1695 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1696 | sta->addr, old_state, new_state); | |
1697 | ||
1698 | /* this would be a mac80211 bug ... but don't crash */ | |
1699 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1700 | return -EINVAL; | |
1701 | ||
1702 | /* if a STA is being removed, reuse its ID */ | |
1703 | flush_work(&mvm->sta_drained_wk); | |
1704 | ||
1705 | mutex_lock(&mvm->mutex); | |
1706 | if (old_state == IEEE80211_STA_NOTEXIST && | |
1707 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
1708 | /* |
1709 | * Firmware bug - it'll crash if the beacon interval is less | |
1710 | * than 16. We can't avoid connecting at all, so refuse the | |
1711 | * station state change, this will cause mac80211 to abandon | |
1712 | * attempts to connect to this AP, and eventually wpa_s will | |
1713 | * blacklist the AP... | |
1714 | */ | |
1715 | if (vif->type == NL80211_IFTYPE_STATION && | |
1716 | vif->bss_conf.beacon_int < 16) { | |
1717 | IWL_ERR(mvm, | |
1718 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
1719 | sta->addr, vif->bss_conf.beacon_int); | |
1720 | ret = -EINVAL; | |
1721 | goto out_unlock; | |
1722 | } | |
8ca151b5 JB |
1723 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1724 | } else if (old_state == IEEE80211_STA_NONE && | |
1725 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
1726 | /* |
1727 | * EBS may be disabled due to previous failures reported by FW. | |
1728 | * Reset EBS status here assuming environment has been changed. | |
1729 | */ | |
1730 | mvm->last_ebs_successful = true; | |
8ca151b5 JB |
1731 | ret = 0; |
1732 | } else if (old_state == IEEE80211_STA_AUTH && | |
1733 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
1734 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
1735 | if (ret == 0) | |
1736 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
1737 | mvmvif->phy_ctxt->channel->band, |
1738 | true); | |
8ca151b5 JB |
1739 | } else if (old_state == IEEE80211_STA_ASSOC && |
1740 | new_state == IEEE80211_STA_AUTHORIZED) { | |
7df15b1e | 1741 | /* enable beacon filtering */ |
fa7b2e7f | 1742 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
1743 | ret = 0; |
1744 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
1745 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 1746 | /* disable beacon filtering */ |
a1022927 | 1747 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
1748 | ret = 0; |
1749 | } else if (old_state == IEEE80211_STA_ASSOC && | |
1750 | new_state == IEEE80211_STA_AUTH) { | |
1751 | ret = 0; | |
1752 | } else if (old_state == IEEE80211_STA_AUTH && | |
1753 | new_state == IEEE80211_STA_NONE) { | |
1754 | ret = 0; | |
1755 | } else if (old_state == IEEE80211_STA_NONE && | |
1756 | new_state == IEEE80211_STA_NOTEXIST) { | |
1757 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1758 | } else { | |
1759 | ret = -EIO; | |
1760 | } | |
48bc1307 | 1761 | out_unlock: |
8ca151b5 JB |
1762 | mutex_unlock(&mvm->mutex); |
1763 | ||
1764 | return ret; | |
1765 | } | |
1766 | ||
1767 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1768 | { | |
1769 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1770 | ||
1771 | mvm->rts_threshold = value; | |
1772 | ||
1773 | return 0; | |
1774 | } | |
1775 | ||
1f3b0ff8 LE |
1776 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
1777 | struct ieee80211_vif *vif, | |
1778 | struct ieee80211_sta *sta, u32 changed) | |
1779 | { | |
1780 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1781 | ||
1782 | if (vif->type == NL80211_IFTYPE_STATION && | |
1783 | changed & IEEE80211_RC_NSS_CHANGED) | |
1784 | iwl_mvm_sf_update(mvm, vif, false); | |
1785 | } | |
1786 | ||
8ca151b5 JB |
1787 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
1788 | struct ieee80211_vif *vif, u16 ac, | |
1789 | const struct ieee80211_tx_queue_params *params) | |
1790 | { | |
1791 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1792 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1793 | ||
1794 | mvmvif->queue_params[ac] = *params; | |
1795 | ||
1796 | /* | |
1797 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
1798 | * The exception is P2P_DEVICE interface which needs immediate update. | |
1799 | */ | |
1800 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1801 | int ret; | |
1802 | ||
1803 | mutex_lock(&mvm->mutex); | |
bca49d9a | 1804 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
8ca151b5 JB |
1805 | mutex_unlock(&mvm->mutex); |
1806 | return ret; | |
1807 | } | |
1808 | return 0; | |
1809 | } | |
1810 | ||
1811 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
1812 | struct ieee80211_vif *vif) | |
1813 | { | |
1814 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1815 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
1816 | 200 + vif->bss_conf.beacon_int); | |
1817 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
1818 | 100 + vif->bss_conf.beacon_int); | |
1819 | ||
1820 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
1821 | return; | |
1822 | ||
1823 | mutex_lock(&mvm->mutex); | |
1824 | /* Try really hard to protect the session and hear a beacon */ | |
016d27e1 | 1825 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500); |
8ca151b5 JB |
1826 | mutex_unlock(&mvm->mutex); |
1827 | } | |
1828 | ||
35a000b7 DS |
1829 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
1830 | struct ieee80211_vif *vif, | |
1831 | struct cfg80211_sched_scan_request *req, | |
1832 | struct ieee80211_sched_scan_ies *ies) | |
1833 | { | |
1834 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1835 | int ret; | |
1836 | ||
1837 | mutex_lock(&mvm->mutex); | |
1838 | ||
b538b8ce | 1839 | if (!iwl_mvm_is_idle(mvm)) { |
bd5e4744 DS |
1840 | ret = -EBUSY; |
1841 | goto out; | |
1842 | } | |
1843 | ||
91b80256 AN |
1844 | switch (mvm->scan_status) { |
1845 | case IWL_MVM_SCAN_OS: | |
1846 | IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n"); | |
1847 | ret = iwl_mvm_cancel_scan(mvm); | |
1848 | if (ret) { | |
1849 | ret = -EBUSY; | |
1850 | goto out; | |
1851 | } | |
1852 | ||
1853 | /* | |
1854 | * iwl_mvm_rx_scan_complete() will be called soon but will | |
1855 | * not reset the scan status as it won't be IWL_MVM_SCAN_OS | |
1856 | * any more since we queue the next scan immediately (below). | |
1857 | * We make sure it is called before the next scan starts by | |
1858 | * flushing the async-handlers work. | |
1859 | */ | |
1860 | break; | |
1861 | case IWL_MVM_SCAN_NONE: | |
1862 | break; | |
1863 | default: | |
35a000b7 DS |
1864 | ret = -EBUSY; |
1865 | goto out; | |
1866 | } | |
1867 | ||
1868 | mvm->scan_status = IWL_MVM_SCAN_SCHED; | |
1869 | ||
1870 | ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies); | |
1871 | if (ret) | |
1872 | goto err; | |
1873 | ||
1874 | ret = iwl_mvm_config_sched_scan_profiles(mvm, req); | |
1875 | if (ret) | |
1876 | goto err; | |
1877 | ||
1878 | ret = iwl_mvm_sched_scan_start(mvm, req); | |
1879 | if (!ret) | |
1880 | goto out; | |
1881 | err: | |
1882 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
1883 | out: | |
1884 | mutex_unlock(&mvm->mutex); | |
91b80256 AN |
1885 | /* make sure to flush the Rx handler before the next scan arrives */ |
1886 | iwl_mvm_wait_for_async_handlers(mvm); | |
35a000b7 DS |
1887 | return ret; |
1888 | } | |
1889 | ||
37e3308c JB |
1890 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
1891 | struct ieee80211_vif *vif) | |
35a000b7 DS |
1892 | { |
1893 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 1894 | int ret; |
35a000b7 DS |
1895 | |
1896 | mutex_lock(&mvm->mutex); | |
636a2cdc | 1897 | ret = iwl_mvm_sched_scan_stop(mvm, false); |
35a000b7 | 1898 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 1899 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 1900 | |
33ea27f6 | 1901 | return ret; |
35a000b7 DS |
1902 | } |
1903 | ||
8ca151b5 JB |
1904 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
1905 | enum set_key_cmd cmd, | |
1906 | struct ieee80211_vif *vif, | |
1907 | struct ieee80211_sta *sta, | |
1908 | struct ieee80211_key_conf *key) | |
1909 | { | |
1910 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1911 | int ret; | |
1912 | ||
1913 | if (iwlwifi_mod_params.sw_crypto) { | |
1914 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
1915 | return -EOPNOTSUPP; | |
1916 | } | |
1917 | ||
1918 | switch (key->cipher) { | |
1919 | case WLAN_CIPHER_SUITE_TKIP: | |
1920 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1921 | /* fall-through */ | |
1922 | case WLAN_CIPHER_SUITE_CCMP: | |
1923 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1924 | break; | |
1925 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
1926 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
1927 | break; | |
1928 | case WLAN_CIPHER_SUITE_WEP40: | |
1929 | case WLAN_CIPHER_SUITE_WEP104: | |
1930 | /* | |
1931 | * Support for TX only, at least for now, so accept | |
1932 | * the key and do nothing else. Then mac80211 will | |
1933 | * pass it for TX but we don't have to use it for RX. | |
1934 | */ | |
1935 | return 0; | |
1936 | default: | |
e36e5433 MS |
1937 | /* currently FW supports only one optional cipher scheme */ |
1938 | if (hw->n_cipher_schemes && | |
1939 | hw->cipher_schemes->cipher == key->cipher) | |
1940 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
1941 | else | |
1942 | return -EOPNOTSUPP; | |
8ca151b5 JB |
1943 | } |
1944 | ||
1945 | mutex_lock(&mvm->mutex); | |
1946 | ||
1947 | switch (cmd) { | |
1948 | case SET_KEY: | |
5023d966 JB |
1949 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
1950 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
1951 | /* | |
1952 | * GTK on AP interface is a TX-only key, return 0; | |
1953 | * on IBSS they're per-station and because we're lazy | |
1954 | * we don't support them for RX, so do the same. | |
1955 | */ | |
6caffd4f JB |
1956 | ret = 0; |
1957 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
1958 | break; | |
1959 | } | |
1960 | ||
8ca151b5 JB |
1961 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
1962 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
1963 | if (ret) { | |
1964 | IWL_WARN(mvm, "set key failed\n"); | |
1965 | /* | |
1966 | * can't add key for RX, but we don't need it | |
1967 | * in the device for TX so still return 0 | |
1968 | */ | |
6caffd4f | 1969 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
1970 | ret = 0; |
1971 | } | |
1972 | ||
1973 | break; | |
1974 | case DISABLE_KEY: | |
6caffd4f JB |
1975 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
1976 | ret = 0; | |
1977 | break; | |
1978 | } | |
1979 | ||
8ca151b5 JB |
1980 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
1981 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
1982 | break; | |
1983 | default: | |
1984 | ret = -EINVAL; | |
1985 | } | |
1986 | ||
1987 | mutex_unlock(&mvm->mutex); | |
1988 | return ret; | |
1989 | } | |
1990 | ||
1991 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
1992 | struct ieee80211_vif *vif, | |
1993 | struct ieee80211_key_conf *keyconf, | |
1994 | struct ieee80211_sta *sta, | |
1995 | u32 iv32, u16 *phase1key) | |
1996 | { | |
1997 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1998 | ||
5023d966 JB |
1999 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2000 | return; | |
2001 | ||
8ca151b5 JB |
2002 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2003 | } | |
2004 | ||
2005 | ||
2006 | static int iwl_mvm_roc(struct ieee80211_hw *hw, | |
2007 | struct ieee80211_vif *vif, | |
2008 | struct ieee80211_channel *channel, | |
d339d5ca IP |
2009 | int duration, |
2010 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
2011 | { |
2012 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 2013 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 2014 | struct cfg80211_chan_def chandef; |
31d385ae IP |
2015 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
2016 | int ret, i; | |
2017 | ||
2018 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
2019 | duration, type); | |
8ca151b5 JB |
2020 | |
2021 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { | |
2022 | IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); | |
2023 | return -EINVAL; | |
2024 | } | |
2025 | ||
8ca151b5 JB |
2026 | mutex_lock(&mvm->mutex); |
2027 | ||
31d385ae IP |
2028 | for (i = 0; i < NUM_PHY_CTX; i++) { |
2029 | phy_ctxt = &mvm->phy_ctxts[i]; | |
2030 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
2031 | continue; | |
2032 | ||
2033 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
2034 | /* | |
2035 | * Unbind the P2P_DEVICE from the current PHY context, | |
2036 | * and if the PHY context is not used remove it. | |
2037 | */ | |
2038 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
2039 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
2040 | goto out_unlock; | |
2041 | ||
2042 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
2043 | ||
2044 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
2045 | mvmvif->phy_ctxt = phy_ctxt; | |
2046 | ||
2047 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2048 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
2049 | goto out_unlock; | |
2050 | ||
2051 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
2052 | goto schedule_time_event; | |
2053 | } | |
2054 | } | |
2055 | ||
2056 | /* Need to update the PHY context only if the ROC channel changed */ | |
2057 | if (channel == mvmvif->phy_ctxt->channel) | |
2058 | goto schedule_time_event; | |
2059 | ||
8ca151b5 | 2060 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 2061 | |
31d385ae IP |
2062 | /* |
2063 | * Change the PHY context configuration as it is currently referenced | |
2064 | * only by the P2P Device MAC | |
2065 | */ | |
2066 | if (mvmvif->phy_ctxt->ref == 1) { | |
2067 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
2068 | &chandef, 1, 1); | |
2069 | if (ret) | |
2070 | goto out_unlock; | |
2071 | } else { | |
2072 | /* | |
2073 | * The PHY context is shared with other MACs. Need to remove the | |
2074 | * P2P Device from the binding, allocate an new PHY context and | |
2075 | * create a new binding | |
2076 | */ | |
2077 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
2078 | if (!phy_ctxt) { | |
2079 | ret = -ENOSPC; | |
2080 | goto out_unlock; | |
2081 | } | |
2082 | ||
2083 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
2084 | 1, 1); | |
2085 | if (ret) { | |
2086 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
2087 | goto out_unlock; | |
2088 | } | |
2089 | ||
2090 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
2091 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
2092 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
2093 | goto out_unlock; | |
2094 | ||
2095 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
2096 | ||
2097 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
2098 | mvmvif->phy_ctxt = phy_ctxt; | |
2099 | ||
2100 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2101 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
2102 | goto out_unlock; | |
2103 | ||
2104 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
2105 | } | |
2106 | ||
2107 | schedule_time_event: | |
8ca151b5 | 2108 | /* Schedule the time events */ |
e635c797 | 2109 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 2110 | |
31d385ae | 2111 | out_unlock: |
8ca151b5 JB |
2112 | mutex_unlock(&mvm->mutex); |
2113 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
2114 | return ret; |
2115 | } | |
2116 | ||
2117 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
2118 | { | |
2119 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2120 | ||
2121 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
2122 | ||
2123 | mutex_lock(&mvm->mutex); | |
2124 | iwl_mvm_stop_p2p_roc(mvm); | |
2125 | mutex_unlock(&mvm->mutex); | |
2126 | ||
2127 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
2128 | return 0; | |
2129 | } | |
2130 | ||
2131 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
2132 | struct ieee80211_chanctx_conf *ctx) | |
2133 | { | |
2134 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2135 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2136 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
2137 | int ret; |
2138 | ||
53a9d61e | 2139 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 2140 | |
8ca151b5 | 2141 | mutex_lock(&mvm->mutex); |
fe0f2de3 IP |
2142 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
2143 | if (!phy_ctxt) { | |
2144 | ret = -ENOSPC; | |
2145 | goto out; | |
2146 | } | |
8ca151b5 | 2147 | |
dcbc3e1a | 2148 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
2149 | ctx->rx_chains_static, |
2150 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
2151 | if (ret) { |
2152 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
2153 | goto out; | |
2154 | } | |
2155 | ||
53a9d61e | 2156 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
2157 | *phy_ctxt_id = phy_ctxt->id; |
2158 | out: | |
8ca151b5 JB |
2159 | mutex_unlock(&mvm->mutex); |
2160 | return ret; | |
2161 | } | |
2162 | ||
2163 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, | |
2164 | struct ieee80211_chanctx_conf *ctx) | |
2165 | { | |
2166 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2167 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2168 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
2169 | |
2170 | mutex_lock(&mvm->mutex); | |
fe0f2de3 | 2171 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
8ca151b5 JB |
2172 | mutex_unlock(&mvm->mutex); |
2173 | } | |
2174 | ||
2175 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
2176 | struct ieee80211_chanctx_conf *ctx, | |
2177 | u32 changed) | |
2178 | { | |
2179 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2180 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2181 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 2182 | |
31d385ae IP |
2183 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
2184 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
2185 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
2186 | IEEE80211_CHANCTX_CHANGE_RADAR | |
2187 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
2188 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
2189 | phy_ctxt->ref, changed)) | |
2190 | return; | |
2191 | ||
8ca151b5 | 2192 | mutex_lock(&mvm->mutex); |
4d66449a | 2193 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 2194 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
2195 | ctx->rx_chains_static, |
2196 | ctx->rx_chains_dynamic); | |
2197 | mutex_unlock(&mvm->mutex); | |
2198 | } | |
2199 | ||
2200 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, | |
2201 | struct ieee80211_vif *vif, | |
2202 | struct ieee80211_chanctx_conf *ctx) | |
2203 | { | |
2204 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2205 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2206 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
2207 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
2208 | int ret; | |
2209 | ||
2210 | mutex_lock(&mvm->mutex); | |
2211 | ||
fe0f2de3 | 2212 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
2213 | |
2214 | switch (vif->type) { | |
2215 | case NL80211_IFTYPE_AP: | |
bd3398e2 AO |
2216 | /* Unless it's a CSA flow we have nothing to do here */ |
2217 | if (vif->csa_active) { | |
2218 | mvmvif->ap_ibss_active = true; | |
2219 | break; | |
2220 | } | |
5023d966 | 2221 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
2222 | /* |
2223 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 2224 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
2225 | */ |
2226 | ret = 0; | |
2227 | goto out_unlock; | |
2228 | case NL80211_IFTYPE_STATION: | |
8ca151b5 JB |
2229 | case NL80211_IFTYPE_MONITOR: |
2230 | break; | |
2231 | default: | |
2232 | ret = -EINVAL; | |
2233 | goto out_unlock; | |
2234 | } | |
2235 | ||
2236 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2237 | if (ret) | |
2238 | goto out_unlock; | |
2239 | ||
2240 | /* | |
92d85562 AB |
2241 | * Power state must be updated before quotas, |
2242 | * otherwise fw will complain. | |
2243 | */ | |
999609f1 | 2244 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
2245 | |
2246 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
2247 | * interfaces. For the other types, the bss_info changed flow |
2248 | * will handle quota settings. | |
2249 | */ | |
2250 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 2251 | mvmvif->monitor_active = true; |
8ca151b5 JB |
2252 | ret = iwl_mvm_update_quotas(mvm, vif); |
2253 | if (ret) | |
2254 | goto out_remove_binding; | |
2255 | } | |
2256 | ||
bd3398e2 AO |
2257 | /* Handle binding during CSA */ |
2258 | if (vif->type == NL80211_IFTYPE_AP) { | |
2259 | iwl_mvm_update_quotas(mvm, vif); | |
bca49d9a | 2260 | iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
bd3398e2 AO |
2261 | } |
2262 | ||
8ca151b5 JB |
2263 | goto out_unlock; |
2264 | ||
2265 | out_remove_binding: | |
2266 | iwl_mvm_binding_remove_vif(mvm, vif); | |
999609f1 | 2267 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
2268 | out_unlock: |
2269 | mutex_unlock(&mvm->mutex); | |
2270 | if (ret) | |
2271 | mvmvif->phy_ctxt = NULL; | |
2272 | return ret; | |
2273 | } | |
2274 | ||
2275 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
2276 | struct ieee80211_vif *vif, | |
2277 | struct ieee80211_chanctx_conf *ctx) | |
2278 | { | |
2279 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2280 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2281 | ||
2282 | mutex_lock(&mvm->mutex); | |
2283 | ||
2284 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
2285 | ||
8ca151b5 | 2286 | switch (vif->type) { |
5023d966 JB |
2287 | case NL80211_IFTYPE_ADHOC: |
2288 | goto out_unlock; | |
8ca151b5 | 2289 | case NL80211_IFTYPE_MONITOR: |
1e1391ca IP |
2290 | mvmvif->monitor_active = false; |
2291 | iwl_mvm_update_quotas(mvm, NULL); | |
8ca151b5 | 2292 | break; |
bd3398e2 AO |
2293 | case NL80211_IFTYPE_AP: |
2294 | /* This part is triggered only during CSA */ | |
2295 | if (!vif->csa_active || !mvmvif->ap_ibss_active) | |
2296 | goto out_unlock; | |
2297 | ||
2298 | mvmvif->ap_ibss_active = false; | |
2299 | iwl_mvm_update_quotas(mvm, NULL); | |
2300 | /*TODO: bt_coex notification here? */ | |
8ca151b5 JB |
2301 | default: |
2302 | break; | |
2303 | } | |
2304 | ||
1e1391ca | 2305 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 2306 | |
a11e144e IP |
2307 | out_unlock: |
2308 | mvmvif->phy_ctxt = NULL; | |
999609f1 | 2309 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
2310 | mutex_unlock(&mvm->mutex); |
2311 | } | |
2312 | ||
2313 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, | |
2314 | struct ieee80211_sta *sta, | |
2315 | bool set) | |
2316 | { | |
2317 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2318 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
2319 | ||
2320 | if (!mvm_sta || !mvm_sta->vif) { | |
2321 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
2322 | return -EINVAL; | |
2323 | } | |
2324 | ||
2325 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
2326 | } | |
2327 | ||
507cadf2 DS |
2328 | #ifdef CONFIG_NL80211_TESTMODE |
2329 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
2330 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
2331 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 2332 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
2333 | }; |
2334 | ||
2335 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
2336 | struct ieee80211_vif *vif, | |
2337 | void *data, int len) | |
2338 | { | |
2339 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
2340 | int err; | |
2341 | u32 noa_duration; | |
2342 | ||
2343 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
2344 | if (err) | |
2345 | return err; | |
2346 | ||
2347 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
2348 | return -EINVAL; | |
2349 | ||
2350 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
2351 | case IWL_MVM_TM_CMD_SET_NOA: | |
2352 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
2353 | !vif->bss_conf.enable_beacon || | |
2354 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
2355 | return -EINVAL; | |
2356 | ||
2357 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
2358 | if (noa_duration >= vif->bss_conf.beacon_int) | |
2359 | return -EINVAL; | |
2360 | ||
2361 | mvm->noa_duration = noa_duration; | |
2362 | mvm->noa_vif = vif; | |
2363 | ||
2364 | return iwl_mvm_update_quotas(mvm, NULL); | |
f6c6ad42 JB |
2365 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
2366 | /* must be associated client vif - ignore authorized */ | |
2367 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
2368 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
2369 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
2370 | return -EINVAL; | |
2371 | ||
2372 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
2373 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
2374 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
2375 | } |
2376 | ||
2377 | return -EOPNOTSUPP; | |
2378 | } | |
2379 | ||
2380 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
2381 | struct ieee80211_vif *vif, | |
2382 | void *data, int len) | |
2383 | { | |
2384 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2385 | int err; | |
2386 | ||
2387 | mutex_lock(&mvm->mutex); | |
2388 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
2389 | mutex_unlock(&mvm->mutex); | |
2390 | ||
2391 | return err; | |
2392 | } | |
2393 | #endif | |
2394 | ||
bd3398e2 AO |
2395 | static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw, |
2396 | struct ieee80211_vif *vif, | |
2397 | struct cfg80211_chan_def *chandef) | |
2398 | { | |
2399 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2400 | ||
2401 | mutex_lock(&mvm->mutex); | |
2402 | if (WARN(mvm->csa_vif && mvm->csa_vif->csa_active, | |
2403 | "Another CSA is already in progress")) | |
2404 | goto out_unlock; | |
2405 | ||
2406 | IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n", | |
2407 | chandef->center_freq1); | |
2408 | mvm->csa_vif = vif; | |
2409 | ||
2410 | out_unlock: | |
2411 | mutex_unlock(&mvm->mutex); | |
2412 | } | |
2413 | ||
c5b0e7c0 EG |
2414 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
2415 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
2416 | { | |
2417 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2418 | struct iwl_mvm_vif *mvmvif; | |
2419 | struct iwl_mvm_sta *mvmsta; | |
2420 | ||
2421 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
2422 | return; | |
2423 | ||
2424 | mutex_lock(&mvm->mutex); | |
2425 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2426 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id); | |
2427 | ||
2428 | if (WARN_ON_ONCE(!mvmsta)) | |
2429 | goto done; | |
2430 | ||
2431 | if (drop) { | |
2432 | if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true)) | |
2433 | IWL_ERR(mvm, "flush request fail\n"); | |
2434 | } else { | |
2435 | iwl_trans_wait_tx_queue_empty(mvm->trans, | |
2436 | mvmsta->tfd_queue_msk); | |
2437 | } | |
2438 | done: | |
2439 | mutex_unlock(&mvm->mutex); | |
2440 | } | |
2441 | ||
e5209263 | 2442 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
2443 | .tx = iwl_mvm_mac_tx, |
2444 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
2445 | .start = iwl_mvm_mac_start, | |
2446 | .restart_complete = iwl_mvm_mac_restart_complete, | |
2447 | .stop = iwl_mvm_mac_stop, | |
2448 | .add_interface = iwl_mvm_mac_add_interface, | |
2449 | .remove_interface = iwl_mvm_mac_remove_interface, | |
2450 | .config = iwl_mvm_mac_config, | |
e59647ea | 2451 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
2452 | .configure_filter = iwl_mvm_configure_filter, |
2453 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
2454 | .hw_scan = iwl_mvm_mac_hw_scan, | |
2455 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 2456 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
2457 | .sta_state = iwl_mvm_mac_sta_state, |
2458 | .sta_notify = iwl_mvm_mac_sta_notify, | |
2459 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 2460 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 2461 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 2462 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
2463 | .conf_tx = iwl_mvm_mac_conf_tx, |
2464 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
c5b0e7c0 | 2465 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
2466 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
2467 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
2468 | .set_key = iwl_mvm_mac_set_key, |
2469 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
2470 | .remain_on_channel = iwl_mvm_roc, | |
2471 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
2472 | .add_chanctx = iwl_mvm_add_chanctx, |
2473 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
2474 | .change_chanctx = iwl_mvm_change_chanctx, | |
2475 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
2476 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
2477 | ||
5023d966 JB |
2478 | .start_ap = iwl_mvm_start_ap_ibss, |
2479 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
2480 | .join_ibss = iwl_mvm_start_ap_ibss, | |
2481 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
2482 | |
2483 | .set_tim = iwl_mvm_set_tim, | |
2484 | ||
bd3398e2 AO |
2485 | .channel_switch_beacon = iwl_mvm_channel_switch_beacon, |
2486 | ||
507cadf2 DS |
2487 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
2488 | ||
8ca151b5 JB |
2489 | #ifdef CONFIG_PM_SLEEP |
2490 | /* look at d3.c */ | |
2491 | .suspend = iwl_mvm_suspend, | |
2492 | .resume = iwl_mvm_resume, | |
2493 | .set_wakeup = iwl_mvm_set_wakeup, | |
2494 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
2495 | #if IS_ENABLED(CONFIG_IPV6) | |
2496 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
2497 | #endif | |
2498 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
2499 | #endif | |
2500 | }; |