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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 | |
a42c9fcc AN |
306 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT && |
307 | !iwlwifi_mod_params.uapsd_disable) { | |
308 | hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD; | |
309 | hw->uapsd_queues = IWL_UAPSD_AC_INFO; | |
310 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
311 | } | |
e8e626ad | 312 | |
8ca151b5 JB |
313 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
314 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 315 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
316 | |
317 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
318 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
319 | BIT(NL80211_IFTYPE_AP) | | |
320 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
321 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
322 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 323 | |
a2f73b6c LR |
324 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
325 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
326 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 327 | |
3e56eadf JB |
328 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
329 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
330 | ||
bd3398e2 AO |
331 | if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW) |
332 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; | |
333 | ||
8ca151b5 JB |
334 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
335 | hw->wiphy->n_iface_combinations = | |
336 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
337 | ||
c451e6d4 | 338 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 JB |
339 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
340 | ||
341 | /* Extract MAC address */ | |
342 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
343 | hw->wiphy->addresses = mvm->addresses; | |
344 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
345 | |
346 | /* Extract additional MAC addresses if available */ | |
347 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
348 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
349 | ||
350 | for (i = 1; i < num_mac; i++) { | |
351 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 352 | ETH_ALEN); |
831e85f3 | 353 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
354 | hw->wiphy->n_addresses++; |
355 | } | |
356 | ||
fe0f2de3 IP |
357 | iwl_mvm_reset_phy_ctxts(mvm); |
358 | ||
20f1a5de DS |
359 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
360 | ||
8ca151b5 JB |
361 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
362 | ||
363 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
364 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
365 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
366 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
367 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
368 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
369 | ||
370 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
371 | ||
ade50652 | 372 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
373 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
374 | else | |
375 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
376 | ||
536a3eee EG |
377 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
378 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
379 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
380 | /* we create the 802.11 header and zero length SSID IE. */ | |
381 | hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
35a000b7 | 382 | |
8ca151b5 | 383 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 384 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
8a110d9b | 385 | NL80211_FEATURE_P2P_GO_OPPPS; |
8ca151b5 JB |
386 | |
387 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
388 | ||
e36e5433 | 389 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 390 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 391 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 392 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
393 | } |
394 | ||
8ca151b5 | 395 | #ifdef CONFIG_PM_SLEEP |
d15a747f EP |
396 | if (iwl_mvm_is_d0i3_supported(mvm) && |
397 | device_can_wakeup(mvm->trans->dev)) { | |
398 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
399 | hw->wiphy->wowlan = &mvm->wowlan; | |
400 | } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
401 | mvm->trans->ops->d3_suspend && |
402 | mvm->trans->ops->d3_resume && | |
403 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
404 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
405 | WIPHY_WOWLAN_DISCONNECT | | |
406 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
407 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 408 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
409 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
410 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
411 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
412 | ||
413 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
414 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
415 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
416 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
417 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
418 | } |
419 | #endif | |
420 | ||
77736923 EP |
421 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
422 | /* assign default bcast filtering configuration */ | |
423 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
424 | #endif | |
425 | ||
8ca151b5 JB |
426 | ret = iwl_mvm_leds_init(mvm); |
427 | if (ret) | |
428 | return ret; | |
429 | ||
b7327d89 EG |
430 | ret = ieee80211_register_hw(mvm->hw); |
431 | if (ret) | |
432 | iwl_mvm_leds_exit(mvm); | |
433 | ||
434 | return ret; | |
8ca151b5 JB |
435 | } |
436 | ||
b2492501 AN |
437 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
438 | struct ieee80211_sta *sta, | |
439 | struct sk_buff *skb) | |
440 | { | |
441 | struct iwl_mvm_sta *mvmsta; | |
442 | bool defer = false; | |
443 | ||
444 | /* | |
445 | * double check the IN_D0I3 flag both before and after | |
446 | * taking the spinlock, in order to prevent taking | |
447 | * the spinlock when not needed. | |
448 | */ | |
449 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
450 | return false; | |
451 | ||
452 | spin_lock(&mvm->d0i3_tx_lock); | |
453 | /* | |
454 | * testing the flag again ensures the skb dequeue | |
455 | * loop (on d0i3 exit) hasn't run yet. | |
456 | */ | |
457 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
458 | goto out; | |
459 | ||
460 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
461 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
462 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
463 | goto out; | |
464 | ||
465 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
466 | ieee80211_stop_queues(mvm->hw); | |
467 | ||
468 | /* trigger wakeup */ | |
469 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
470 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
471 | ||
472 | defer = true; | |
473 | out: | |
474 | spin_unlock(&mvm->d0i3_tx_lock); | |
475 | return defer; | |
476 | } | |
477 | ||
8ca151b5 JB |
478 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
479 | struct ieee80211_tx_control *control, | |
480 | struct sk_buff *skb) | |
481 | { | |
482 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
483 | struct ieee80211_sta *sta = control->sta; |
484 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
485 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 486 | |
9ee718aa EL |
487 | if (iwl_mvm_is_radio_killed(mvm)) { |
488 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
489 | goto drop; |
490 | } | |
491 | ||
398e8c6c | 492 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
493 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
494 | goto drop; | |
495 | ||
3e56eadf JB |
496 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
497 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
498 | ieee80211_is_mgmt(hdr->frame_control) && | |
499 | !ieee80211_is_deauth(hdr->frame_control) && | |
500 | !ieee80211_is_disassoc(hdr->frame_control) && | |
501 | !ieee80211_is_action(hdr->frame_control))) | |
502 | sta = NULL; | |
503 | ||
504 | if (sta) { | |
b2492501 AN |
505 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
506 | return; | |
3e56eadf | 507 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
508 | goto drop; |
509 | return; | |
510 | } | |
511 | ||
512 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
513 | goto drop; | |
514 | return; | |
515 | drop: | |
516 | ieee80211_free_txskb(hw, skb); | |
517 | } | |
518 | ||
205e2210 EG |
519 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
520 | { | |
521 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
522 | return false; | |
523 | return true; | |
524 | } | |
525 | ||
526 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
527 | { | |
528 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
529 | return false; | |
530 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
531 | return true; | |
532 | ||
533 | /* enabled by default */ | |
534 | return true; | |
535 | } | |
536 | ||
8ca151b5 JB |
537 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
538 | struct ieee80211_vif *vif, | |
539 | enum ieee80211_ampdu_mlme_action action, | |
540 | struct ieee80211_sta *sta, u16 tid, | |
541 | u16 *ssn, u8 buf_size) | |
542 | { | |
543 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
544 | int ret; | |
b2492501 | 545 | bool tx_agg_ref = false; |
8ca151b5 JB |
546 | |
547 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
548 | sta->addr, tid, action); | |
549 | ||
550 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
551 | return -EACCES; | |
552 | ||
b2492501 | 553 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
554 | switch (action) { |
555 | case IEEE80211_AMPDU_TX_START: | |
556 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
557 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
558 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
559 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 AN |
560 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX_AGG); |
561 | tx_agg_ref = true; | |
562 | ||
563 | /* | |
9256c205 EP |
564 | * for tx start, wait synchronously until D0i3 exit to |
565 | * get the correct sequence number for the tid. | |
566 | * additionally, some other ampdu actions use direct | |
567 | * target access, which is not handled automatically | |
568 | * by the trans layer (unlike commands), so wait for | |
569 | * d0i3 exit in these cases as well. | |
b2492501 AN |
570 | */ |
571 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
572 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), HZ)) { | |
573 | WARN_ON_ONCE(1); | |
574 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
575 | return -EIO; | |
576 | } | |
9256c205 EP |
577 | break; |
578 | default: | |
579 | break; | |
b2492501 AN |
580 | } |
581 | ||
8ca151b5 JB |
582 | mutex_lock(&mvm->mutex); |
583 | ||
584 | switch (action) { | |
585 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 586 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
587 | ret = -EINVAL; |
588 | break; | |
589 | } | |
590 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
591 | break; | |
592 | case IEEE80211_AMPDU_RX_STOP: | |
593 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
594 | break; | |
595 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 596 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
597 | ret = -EINVAL; |
598 | break; | |
599 | } | |
8ca151b5 JB |
600 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
601 | break; | |
602 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
603 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
604 | break; | |
8ca151b5 JB |
605 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
606 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 607 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
608 | break; |
609 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
610 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
611 | break; | |
612 | default: | |
613 | WARN_ON_ONCE(1); | |
614 | ret = -EINVAL; | |
615 | break; | |
616 | } | |
617 | mutex_unlock(&mvm->mutex); | |
618 | ||
b2492501 AN |
619 | /* |
620 | * If the tid is marked as started, we won't use it for offloaded | |
621 | * traffic on the next D0i3 entry. It's safe to unref. | |
622 | */ | |
623 | if (tx_agg_ref) | |
624 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
625 | ||
8ca151b5 JB |
626 | return ret; |
627 | } | |
628 | ||
629 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
630 | struct ieee80211_vif *vif) | |
631 | { | |
632 | struct iwl_mvm *mvm = data; | |
633 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
634 | ||
635 | mvmvif->uploaded = false; | |
636 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
637 | ||
638 | /* does this make sense at all? */ | |
639 | mvmvif->color++; | |
640 | ||
641 | spin_lock_bh(&mvm->time_event_lock); | |
642 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
643 | spin_unlock_bh(&mvm->time_event_lock); | |
644 | ||
fe0f2de3 | 645 | mvmvif->phy_ctxt = NULL; |
8ca151b5 JB |
646 | } |
647 | ||
648 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
649 | { | |
1bd3cbc1 EG |
650 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
651 | static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL }; | |
652 | ||
653 | iwl_mvm_fw_error_dump(mvm); | |
654 | ||
655 | /* notify the userspace about the error we had */ | |
656 | kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env); | |
657 | #endif | |
658 | ||
8ca151b5 | 659 | iwl_trans_stop_device(mvm->trans); |
8ca151b5 JB |
660 | |
661 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
662 | ||
663 | /* just in case one was running */ | |
664 | ieee80211_remain_on_channel_expired(mvm->hw); | |
665 | ||
666 | ieee80211_iterate_active_interfaces_atomic( | |
667 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
668 | iwl_mvm_cleanup_iterator, mvm); | |
669 | ||
fe0f2de3 | 670 | mvm->p2p_device_vif = NULL; |
37577fe2 | 671 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
672 | |
673 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
674 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
675 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
676 | ||
677 | ieee80211_wake_queues(mvm->hw); | |
678 | ||
7498cf4c EP |
679 | /* cleanup all stale references (scan, roc), but keep the |
680 | * ucode_down ref until reconfig is complete */ | |
681 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
682 | ||
8ca151b5 | 683 | mvm->vif_count = 0; |
113a0447 | 684 | mvm->rx_ba_sessions = 0; |
8ca151b5 JB |
685 | } |
686 | ||
687 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
688 | { | |
689 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
690 | int ret; | |
691 | ||
692 | mutex_lock(&mvm->mutex); | |
693 | ||
694 | /* Clean up some internal and mac80211 state on restart */ | |
695 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
696 | iwl_mvm_restart_cleanup(mvm); | |
697 | ||
698 | ret = iwl_mvm_up(mvm); | |
c47af22a JB |
699 | |
700 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
701 | /* Something went wrong - we need to finish some cleanup | |
702 | * that normally iwl_mvm_mac_restart_complete() below | |
703 | * would do. | |
704 | */ | |
705 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
706 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
707 | } | |
708 | ||
8ca151b5 JB |
709 | mutex_unlock(&mvm->mutex); |
710 | ||
711 | return ret; | |
712 | } | |
713 | ||
714 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
715 | { | |
716 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
717 | int ret; | |
718 | ||
719 | mutex_lock(&mvm->mutex); | |
720 | ||
721 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 722 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
8ca151b5 JB |
723 | ret = iwl_mvm_update_quotas(mvm, NULL); |
724 | if (ret) | |
725 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
726 | ret); | |
727 | ||
7498cf4c EP |
728 | /* allow transport/FW low power modes */ |
729 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
730 | ||
8ca151b5 JB |
731 | mutex_unlock(&mvm->mutex); |
732 | } | |
733 | ||
734 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
735 | { | |
736 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
737 | ||
37577fe2 | 738 | flush_work(&mvm->d0i3_exit_work); |
8ca151b5 JB |
739 | flush_work(&mvm->async_handlers_wk); |
740 | ||
741 | mutex_lock(&mvm->mutex); | |
7498cf4c EP |
742 | |
743 | /* disallow low power states when the FW is down */ | |
744 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
745 | ||
8ca151b5 JB |
746 | /* async_handlers_wk is now blocked */ |
747 | ||
748 | /* | |
749 | * The work item could be running or queued if the | |
750 | * ROC time event stops just as we get here. | |
751 | */ | |
752 | cancel_work_sync(&mvm->roc_done_wk); | |
753 | ||
754 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
755 | |
756 | iwl_mvm_async_handlers_purge(mvm); | |
757 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
758 | ||
759 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
760 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
761 | ||
762 | mutex_unlock(&mvm->mutex); | |
763 | ||
764 | /* | |
765 | * The worker might have been waiting for the mutex, let it run and | |
766 | * discover that its list is now empty. | |
767 | */ | |
768 | cancel_work_sync(&mvm->async_handlers_wk); | |
769 | } | |
770 | ||
fe0f2de3 IP |
771 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
772 | { | |
773 | u16 i; | |
774 | ||
775 | lockdep_assert_held(&mvm->mutex); | |
776 | ||
777 | for (i = 0; i < NUM_PHY_CTX; i++) | |
778 | if (!mvm->phy_ctxts[i].ref) | |
779 | return &mvm->phy_ctxts[i]; | |
780 | ||
781 | IWL_ERR(mvm, "No available PHY context\n"); | |
782 | return NULL; | |
783 | } | |
784 | ||
ee9c6cb0 EG |
785 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
786 | s8 tx_power) | |
787 | { | |
788 | /* FW is in charge of regulatory enforcement */ | |
789 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
790 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
791 | .pwr_restriction = cpu_to_le16(tx_power), | |
792 | }; | |
793 | ||
a1022927 | 794 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, |
ee9c6cb0 EG |
795 | sizeof(reduce_txpwr_cmd), |
796 | &reduce_txpwr_cmd); | |
797 | } | |
798 | ||
8ca151b5 JB |
799 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
800 | struct ieee80211_vif *vif) | |
801 | { | |
802 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
803 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
804 | int ret; | |
805 | ||
806 | /* | |
807 | * Not much to do here. The stack will not allow interface | |
808 | * types or combinations that we didn't advertise, so we | |
809 | * don't really have to check the types. | |
810 | */ | |
811 | ||
812 | mutex_lock(&mvm->mutex); | |
813 | ||
e89044d7 | 814 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
815 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
816 | if (ret) | |
817 | goto out_unlock; | |
818 | ||
1c2abf72 | 819 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
820 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
821 | mvm->vif_count++; | |
ea183d02 | 822 | |
8ca151b5 JB |
823 | /* |
824 | * The AP binding flow can be done only after the beacon | |
825 | * template is configured (which happens only in the mac80211 | |
826 | * start_ap() flow), and adding the broadcast station can happen | |
827 | * only after the binding. | |
828 | * In addition, since modifying the MAC before adding a bcast | |
829 | * station is not allowed by the FW, delay the adding of MAC context to | |
830 | * the point where we can also add the bcast station. | |
831 | * In short: there's not much we can do at this point, other than | |
832 | * allocating resources :) | |
833 | */ | |
5023d966 JB |
834 | if (vif->type == NL80211_IFTYPE_AP || |
835 | vif->type == NL80211_IFTYPE_ADHOC) { | |
8ca151b5 JB |
836 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); |
837 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
b92e661b EP |
838 | qmask, |
839 | ieee80211_vif_type_p2p(vif)); | |
8ca151b5 JB |
840 | if (ret) { |
841 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
842 | goto out_release; | |
843 | } | |
844 | ||
77740cb4 | 845 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
846 | goto out_unlock; |
847 | } | |
848 | ||
8ca151b5 JB |
849 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
850 | if (ret) | |
851 | goto out_release; | |
852 | ||
999609f1 | 853 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e EG |
854 | if (ret) |
855 | goto out_release; | |
8ca151b5 | 856 | |
7df15b1e | 857 | /* beacon filtering */ |
a1022927 | 858 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
859 | if (ret) |
860 | goto out_remove_mac; | |
861 | ||
7df15b1e | 862 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 863 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 864 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
865 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
866 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
867 | } |
868 | ||
8ca151b5 JB |
869 | /* |
870 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
871 | * so a dedicated PHY context is allocated to it and the corresponding | |
872 | * MAC context is bound to it at this stage. | |
873 | */ | |
874 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 875 | |
fe0f2de3 IP |
876 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
877 | if (!mvmvif->phy_ctxt) { | |
878 | ret = -ENOSPC; | |
bd3351ba | 879 | goto out_free_bf; |
fe0f2de3 | 880 | } |
8ca151b5 | 881 | |
53a9d61e | 882 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
883 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
884 | if (ret) | |
53a9d61e | 885 | goto out_unref_phy; |
8ca151b5 JB |
886 | |
887 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
888 | if (ret) | |
889 | goto out_unbind; | |
890 | ||
891 | /* Save a pointer to p2p device vif, so it can later be used to | |
892 | * update the p2p device MAC when a GO is started/stopped */ | |
893 | mvm->p2p_device_vif = vif; | |
894 | } | |
895 | ||
63494374 | 896 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
897 | goto out_unlock; |
898 | ||
899 | out_unbind: | |
900 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 901 | out_unref_phy: |
fe0f2de3 | 902 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
903 | out_free_bf: |
904 | if (mvm->bf_allowed_vif == mvmvif) { | |
905 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
906 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
907 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 908 | } |
8ca151b5 JB |
909 | out_remove_mac: |
910 | mvmvif->phy_ctxt = NULL; | |
911 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
912 | out_release: | |
5ee2b215 AB |
913 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
914 | mvm->vif_count--; | |
1c2abf72 | 915 | |
8ca151b5 JB |
916 | iwl_mvm_mac_ctxt_release(mvm, vif); |
917 | out_unlock: | |
918 | mutex_unlock(&mvm->mutex); | |
919 | ||
920 | return ret; | |
921 | } | |
922 | ||
38a12b5b JB |
923 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
924 | struct ieee80211_vif *vif) | |
8ca151b5 | 925 | { |
8ca151b5 JB |
926 | u32 tfd_msk = 0, ac; |
927 | ||
928 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
929 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
930 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
931 | ||
932 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
933 | tfd_msk |= BIT(vif->cab_queue); | |
934 | ||
935 | if (tfd_msk) { | |
936 | mutex_lock(&mvm->mutex); | |
937 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
938 | mutex_unlock(&mvm->mutex); | |
939 | } | |
940 | ||
941 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
942 | /* | |
943 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
944 | * We assume here that all the packets sent to the OFFCHANNEL | |
945 | * queue are sent in ROC session. | |
946 | */ | |
947 | flush_work(&mvm->roc_done_wk); | |
948 | } else { | |
949 | /* | |
950 | * By now, all the AC queues are empty. The AGG queues are | |
951 | * empty too. We already got all the Tx responses for all the | |
952 | * packets in the queues. The drain work can have been | |
0742a75a | 953 | * triggered. Flush it. |
8ca151b5 JB |
954 | */ |
955 | flush_work(&mvm->sta_drained_wk); | |
956 | } | |
38a12b5b JB |
957 | } |
958 | ||
959 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
960 | struct ieee80211_vif *vif) | |
961 | { | |
962 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
963 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
964 | ||
965 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
966 | |
967 | mutex_lock(&mvm->mutex); | |
968 | ||
7df15b1e HG |
969 | if (mvm->bf_allowed_vif == mvmvif) { |
970 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
971 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
972 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
973 | } |
974 | ||
63494374 JB |
975 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
976 | ||
8ca151b5 JB |
977 | /* |
978 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 979 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 980 | */ |
5023d966 JB |
981 | if (vif->type == NL80211_IFTYPE_AP || |
982 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
983 | #ifdef CONFIG_NL80211_TESTMODE |
984 | if (vif == mvm->noa_vif) { | |
985 | mvm->noa_vif = NULL; | |
986 | mvm->noa_duration = 0; | |
987 | } | |
988 | #endif | |
8ca151b5 JB |
989 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); |
990 | goto out_release; | |
991 | } | |
992 | ||
993 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
994 | mvm->p2p_device_vif = NULL; | |
995 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
996 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 997 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
998 | mvmvif->phy_ctxt = NULL; |
999 | } | |
1000 | ||
5ee2b215 | 1001 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1002 | mvm->vif_count--; |
1c2abf72 | 1003 | |
999609f1 | 1004 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1005 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1006 | ||
1007 | out_release: | |
1008 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1009 | mutex_unlock(&mvm->mutex); | |
1010 | } | |
1011 | ||
1012 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1013 | { |
8ca151b5 JB |
1014 | return 0; |
1015 | } | |
1016 | ||
e59647ea EP |
1017 | struct iwl_mvm_mc_iter_data { |
1018 | struct iwl_mvm *mvm; | |
1019 | int port_id; | |
1020 | }; | |
1021 | ||
1022 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1023 | struct ieee80211_vif *vif) | |
1024 | { | |
1025 | struct iwl_mvm_mc_iter_data *data = _data; | |
1026 | struct iwl_mvm *mvm = data->mvm; | |
1027 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1028 | int ret, len; | |
1029 | ||
1030 | /* if we don't have free ports, mcast frames will be dropped */ | |
1031 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1032 | return; | |
1033 | ||
1034 | if (vif->type != NL80211_IFTYPE_STATION || | |
1035 | !vif->bss_conf.assoc) | |
1036 | return; | |
1037 | ||
1038 | cmd->port_id = data->port_id++; | |
1039 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1040 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1041 | ||
1c4abec0 | 1042 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1043 | if (ret) |
1044 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1045 | } | |
1046 | ||
1047 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1048 | { | |
1049 | struct iwl_mvm_mc_iter_data iter_data = { | |
1050 | .mvm = mvm, | |
88f2fd73 MG |
1051 | }; |
1052 | ||
e59647ea EP |
1053 | lockdep_assert_held(&mvm->mutex); |
1054 | ||
1055 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1056 | return; | |
1057 | ||
1c4abec0 | 1058 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1059 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1060 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1061 | } |
1062 | ||
e59647ea EP |
1063 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1064 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1065 | { |
e59647ea EP |
1066 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1067 | struct iwl_mcast_filter_cmd *cmd; | |
1068 | struct netdev_hw_addr *addr; | |
1069 | int addr_count = netdev_hw_addr_list_count(mc_list); | |
1070 | bool pass_all = false; | |
1071 | int len; | |
1072 | ||
1073 | if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) { | |
1074 | pass_all = true; | |
1075 | addr_count = 0; | |
1076 | } | |
1077 | ||
1078 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1079 | cmd = kzalloc(len, GFP_ATOMIC); | |
1080 | if (!cmd) | |
1081 | return 0; | |
1082 | ||
1083 | if (pass_all) { | |
1084 | cmd->pass_all = 1; | |
1085 | return (u64)(unsigned long)cmd; | |
1086 | } | |
1087 | ||
1088 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1089 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1090 | cmd->count, addr->addr); | |
1091 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1092 | addr->addr, ETH_ALEN); | |
1093 | cmd->count++; | |
1094 | } | |
1095 | ||
1096 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1097 | } |
1098 | ||
1099 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1100 | unsigned int changed_flags, | |
1101 | unsigned int *total_flags, | |
1102 | u64 multicast) | |
1103 | { | |
e59647ea EP |
1104 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1105 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1106 | |
e59647ea | 1107 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1108 | |
e59647ea EP |
1109 | /* replace previous configuration */ |
1110 | kfree(mvm->mcast_filter_cmd); | |
1111 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1112 | |
e59647ea EP |
1113 | if (!cmd) |
1114 | goto out; | |
51b6b9e0 | 1115 | |
e59647ea EP |
1116 | iwl_mvm_recalc_multicast(mvm); |
1117 | out: | |
1118 | mutex_unlock(&mvm->mutex); | |
1119 | *total_flags = 0; | |
51b6b9e0 EG |
1120 | } |
1121 | ||
c87163b9 EP |
1122 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1123 | struct iwl_bcast_iter_data { | |
1124 | struct iwl_mvm *mvm; | |
1125 | struct iwl_bcast_filter_cmd *cmd; | |
1126 | u8 current_filter; | |
1127 | }; | |
1128 | ||
1129 | static void | |
1130 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1131 | const struct iwl_fw_bcast_filter *in_filter, | |
1132 | struct iwl_fw_bcast_filter *out_filter) | |
1133 | { | |
1134 | struct iwl_fw_bcast_filter_attr *attr; | |
1135 | int i; | |
1136 | ||
1137 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1138 | ||
1139 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1140 | attr = &out_filter->attrs[i]; | |
1141 | ||
1142 | if (!attr->mask) | |
1143 | break; | |
1144 | ||
2ee8f021 EP |
1145 | switch (attr->reserved1) { |
1146 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1147 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1148 | attr->mask = 0; | |
1149 | continue; | |
1150 | } | |
1151 | ||
1152 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1153 | break; | |
1154 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1155 | attr->val = *(__be32 *)&vif->addr[2]; | |
1156 | break; | |
1157 | default: | |
1158 | break; | |
1159 | } | |
1160 | attr->reserved1 = 0; | |
c87163b9 EP |
1161 | out_filter->num_attrs++; |
1162 | } | |
1163 | } | |
1164 | ||
1165 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1166 | struct ieee80211_vif *vif) | |
1167 | { | |
1168 | struct iwl_bcast_iter_data *data = _data; | |
1169 | struct iwl_mvm *mvm = data->mvm; | |
1170 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1171 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1172 | struct iwl_fw_bcast_mac *bcast_mac; | |
1173 | int i; | |
1174 | ||
1175 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1176 | return; | |
1177 | ||
1178 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1179 | ||
e48393e8 IP |
1180 | /* |
1181 | * enable filtering only for associated stations, but not for P2P | |
1182 | * Clients | |
1183 | */ | |
1184 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1185 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1186 | return; |
1187 | ||
1188 | bcast_mac->default_discard = 1; | |
1189 | ||
1190 | /* copy all configured filters */ | |
1191 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1192 | /* | |
1193 | * Make sure we don't exceed our filters limit. | |
1194 | * if there is still a valid filter to be configured, | |
1195 | * be on the safe side and just allow bcast for this mac. | |
1196 | */ | |
1197 | if (WARN_ON_ONCE(data->current_filter >= | |
1198 | ARRAY_SIZE(cmd->filters))) { | |
1199 | bcast_mac->default_discard = 0; | |
1200 | bcast_mac->attached_filters = 0; | |
1201 | break; | |
1202 | } | |
1203 | ||
1204 | iwl_mvm_set_bcast_filter(vif, | |
1205 | &mvm->bcast_filters[i], | |
1206 | &cmd->filters[data->current_filter]); | |
1207 | ||
1208 | /* skip current filter if it contains no attributes */ | |
1209 | if (!cmd->filters[data->current_filter].num_attrs) | |
1210 | continue; | |
1211 | ||
1212 | /* attach the filter to current mac */ | |
1213 | bcast_mac->attached_filters |= | |
1214 | cpu_to_le16(BIT(data->current_filter)); | |
1215 | ||
1216 | data->current_filter++; | |
1217 | } | |
1218 | } | |
1219 | ||
de06a59e EP |
1220 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1221 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1222 | { |
c87163b9 EP |
1223 | struct iwl_bcast_iter_data iter_data = { |
1224 | .mvm = mvm, | |
de06a59e | 1225 | .cmd = cmd, |
c87163b9 EP |
1226 | }; |
1227 | ||
de06a59e EP |
1228 | memset(cmd, 0, sizeof(*cmd)); |
1229 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1230 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1231 | ||
1232 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1233 | /* use debugfs filters/macs if override is configured */ | |
1234 | if (mvm->dbgfs_bcast_filtering.override) { | |
1235 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1236 | sizeof(cmd->filters)); | |
1237 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1238 | sizeof(cmd->macs)); | |
1239 | return true; | |
1240 | } | |
1241 | #endif | |
c87163b9 EP |
1242 | |
1243 | /* if no filters are configured, do nothing */ | |
1244 | if (!mvm->bcast_filters) | |
de06a59e | 1245 | return false; |
c87163b9 EP |
1246 | |
1247 | /* configure and attach these filters for each associated sta vif */ | |
1248 | ieee80211_iterate_active_interfaces( | |
1249 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1250 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1251 | ||
de06a59e EP |
1252 | return true; |
1253 | } | |
1254 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1255 | struct ieee80211_vif *vif) | |
1256 | { | |
1257 | struct iwl_bcast_filter_cmd cmd; | |
1258 | ||
1259 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1260 | return 0; | |
1261 | ||
1262 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1263 | return 0; | |
1264 | ||
a1022927 | 1265 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1266 | sizeof(cmd), &cmd); |
1267 | } | |
1268 | #else | |
1269 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1270 | struct ieee80211_vif *vif) | |
1271 | { | |
1272 | return 0; | |
1273 | } | |
1274 | #endif | |
1275 | ||
8ca151b5 JB |
1276 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1277 | struct ieee80211_vif *vif, | |
1278 | struct ieee80211_bss_conf *bss_conf, | |
1279 | u32 changes) | |
1280 | { | |
1281 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1282 | int ret; | |
1283 | ||
6e97b0d2 IP |
1284 | /* |
1285 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1286 | * beacon interval, which was not known when the station interface was | |
1287 | * added. | |
1288 | */ | |
1289 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1290 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1291 | ||
bca49d9a | 1292 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
8ca151b5 JB |
1293 | if (ret) |
1294 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1295 | ||
1296 | if (changes & BSS_CHANGED_ASSOC) { | |
1297 | if (bss_conf->assoc) { | |
1298 | /* add quota for this interface */ | |
1299 | ret = iwl_mvm_update_quotas(mvm, vif); | |
1300 | if (ret) { | |
1301 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1302 | return; | |
1303 | } | |
016d27e1 JB |
1304 | |
1305 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1306 | &mvm->status)) { | |
1307 | /* | |
1308 | * If we're restarting then the firmware will | |
1309 | * obviously have lost synchronisation with | |
1310 | * the AP. It will attempt to synchronise by | |
1311 | * itself, but we can make it more reliable by | |
1312 | * scheduling a session protection time event. | |
1313 | * | |
1314 | * The firmware needs to receive a beacon to | |
1315 | * catch up with synchronisation, use 110% of | |
1316 | * the beacon interval. | |
1317 | * | |
1318 | * Set a large maximum delay to allow for more | |
1319 | * than a single interface. | |
1320 | */ | |
1321 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1322 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
1323 | 5 * dur); | |
1324 | } | |
1f3b0ff8 LE |
1325 | |
1326 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1327 | iwl_mvm_power_vif_assoc(mvm, vif); |
29a90a49 EP |
1328 | if (vif->p2p) |
1329 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
8ca151b5 | 1330 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
1331 | /* |
1332 | * If update fails - SF might be running in associated | |
1333 | * mode while disassociated - which is forbidden. | |
1334 | */ | |
1335 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1336 | "Failed to update SF upon disassociation\n"); | |
1337 | ||
8ca151b5 JB |
1338 | /* remove AP station now that the MAC is unassoc */ |
1339 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
1340 | if (ret) | |
1341 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
1342 | |
1343 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
1344 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
1345 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
1346 | /* remove quota for this interface */ | |
1347 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
1348 | if (ret) | |
1349 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
1350 | |
1351 | if (vif->p2p) | |
1352 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
8ca151b5 | 1353 | } |
a20fd398 | 1354 | |
e59647ea | 1355 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 1356 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 1357 | |
a20fd398 AO |
1358 | /* reset rssi values */ |
1359 | mvmvif->bf_data.ave_beacon_signal = 0; | |
1360 | ||
8e484f0b | 1361 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
1362 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
1363 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 1364 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
1365 | /* |
1366 | * We received a beacon _after_ association so | |
1367 | * remove the session protection. | |
1368 | */ | |
1369 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
1370 | &mvmvif->time_event_data); | |
0229cdaf | 1371 | iwl_mvm_sf_update(mvm, vif, false); |
a1022927 | 1372 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
51498cf6 AB |
1373 | } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | |
1374 | BSS_CHANGED_QOS)) { | |
999609f1 | 1375 | ret = iwl_mvm_power_update_mac(mvm); |
4bf881f5 AB |
1376 | if (ret) |
1377 | IWL_ERR(mvm, "failed to update power mode\n"); | |
8ca151b5 | 1378 | } |
88f2fd73 MG |
1379 | if (changes & BSS_CHANGED_TXPOWER) { |
1380 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
1381 | bss_conf->txpower); | |
1382 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
1383 | } | |
a20fd398 AO |
1384 | |
1385 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 1386 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
1387 | /* reset cqm events tracking */ |
1388 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
1389 | if (mvmvif->bf_data.bf_enabled) { |
1390 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
1391 | if (ret) | |
1392 | IWL_ERR(mvm, | |
1393 | "failed to update CQM thresholds\n"); | |
1394 | } | |
a20fd398 | 1395 | } |
2ee8f021 EP |
1396 | |
1397 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 1398 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
2ee8f021 EP |
1399 | iwl_mvm_configure_bcast_filter(mvm, vif); |
1400 | } | |
8ca151b5 JB |
1401 | } |
1402 | ||
5023d966 JB |
1403 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
1404 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1405 | { |
1406 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1407 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1408 | int ret; | |
1409 | ||
1410 | mutex_lock(&mvm->mutex); | |
1411 | ||
1412 | /* Send the beacon template */ | |
1413 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
1414 | if (ret) | |
1415 | goto out_unlock; | |
1416 | ||
6e97b0d2 IP |
1417 | /* |
1418 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1419 | * beacon interval, which was not known when the AP interface was added. | |
1420 | */ | |
1421 | if (vif->type == NL80211_IFTYPE_AP) | |
1422 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1423 | ||
8ca151b5 JB |
1424 | /* Add the mac context */ |
1425 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
1426 | if (ret) | |
1427 | goto out_unlock; | |
1428 | ||
1429 | /* Perform the binding */ | |
1430 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1431 | if (ret) | |
1432 | goto out_remove; | |
1433 | ||
8ca151b5 JB |
1434 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
1435 | * are added and applied to the scheduler */ | |
1436 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
1437 | if (ret) | |
1438 | goto out_unbind; | |
1439 | ||
5691e218 IP |
1440 | /* must be set before quota calculations */ |
1441 | mvmvif->ap_ibss_active = true; | |
1442 | ||
a11e144e | 1443 | /* power updated needs to be done before quotas */ |
999609f1 | 1444 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 1445 | |
8ca151b5 JB |
1446 | ret = iwl_mvm_update_quotas(mvm, vif); |
1447 | if (ret) | |
a11e144e | 1448 | goto out_quota_failed; |
8ca151b5 | 1449 | |
5023d966 | 1450 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 1451 | if (vif->p2p && mvm->p2p_device_vif) |
bca49d9a | 1452 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); |
8ca151b5 | 1453 | |
29a90a49 EP |
1454 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
1455 | ||
8e484f0b | 1456 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1457 | |
8ca151b5 JB |
1458 | mutex_unlock(&mvm->mutex); |
1459 | return 0; | |
1460 | ||
a11e144e | 1461 | out_quota_failed: |
999609f1 | 1462 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 1463 | mvmvif->ap_ibss_active = false; |
8ca151b5 JB |
1464 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); |
1465 | out_unbind: | |
1466 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1467 | out_remove: | |
1468 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1469 | out_unlock: | |
1470 | mutex_unlock(&mvm->mutex); | |
1471 | return ret; | |
1472 | } | |
1473 | ||
5023d966 JB |
1474 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
1475 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1476 | { |
1477 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1478 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1479 | ||
38a12b5b JB |
1480 | iwl_mvm_prepare_mac_removal(mvm, vif); |
1481 | ||
8ca151b5 JB |
1482 | mutex_lock(&mvm->mutex); |
1483 | ||
5023d966 | 1484 | mvmvif->ap_ibss_active = false; |
1c87bbad | 1485 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 1486 | |
8e484f0b | 1487 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1488 | |
29a90a49 EP |
1489 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
1490 | ||
5023d966 | 1491 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 1492 | if (vif->p2p && mvm->p2p_device_vif) |
bca49d9a | 1493 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); |
8ca151b5 JB |
1494 | |
1495 | iwl_mvm_update_quotas(mvm, NULL); | |
1496 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
1497 | iwl_mvm_binding_remove_vif(mvm, vif); | |
a11e144e | 1498 | |
999609f1 | 1499 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 1500 | |
8ca151b5 JB |
1501 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1502 | ||
1503 | mutex_unlock(&mvm->mutex); | |
1504 | } | |
1505 | ||
5023d966 JB |
1506 | static void |
1507 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
1508 | struct ieee80211_vif *vif, | |
1509 | struct ieee80211_bss_conf *bss_conf, | |
1510 | u32 changes) | |
8ca151b5 | 1511 | { |
be2056fc | 1512 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 1513 | |
be2056fc IP |
1514 | /* Changes will be applied when the AP/IBSS is started */ |
1515 | if (!mvmvif->ap_ibss_active) | |
1516 | return; | |
1517 | ||
863230da JB |
1518 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
1519 | BSS_CHANGED_BANDWIDTH) && | |
bca49d9a | 1520 | iwl_mvm_mac_ctxt_changed(mvm, vif, false)) |
863230da | 1521 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 1522 | |
8ca151b5 | 1523 | /* Need to send a new beacon template to the FW */ |
863230da JB |
1524 | if (changes & BSS_CHANGED_BEACON && |
1525 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
1526 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
8ca151b5 JB |
1527 | } |
1528 | ||
1529 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
1530 | struct ieee80211_vif *vif, | |
1531 | struct ieee80211_bss_conf *bss_conf, | |
1532 | u32 changes) | |
1533 | { | |
1534 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1535 | ||
1536 | mutex_lock(&mvm->mutex); | |
1537 | ||
723f02ed DS |
1538 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
1539 | iwl_mvm_sched_scan_stop(mvm, true); | |
1540 | ||
8ca151b5 JB |
1541 | switch (vif->type) { |
1542 | case NL80211_IFTYPE_STATION: | |
1543 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
1544 | break; | |
1545 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
1546 | case NL80211_IFTYPE_ADHOC: |
1547 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
1548 | break; |
1549 | default: | |
1550 | /* shouldn't happen */ | |
1551 | WARN_ON_ONCE(1); | |
1552 | } | |
1553 | ||
1554 | mutex_unlock(&mvm->mutex); | |
1555 | } | |
1556 | ||
1557 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
1558 | struct ieee80211_vif *vif, | |
c56ef672 | 1559 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
1560 | { |
1561 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
c56ef672 | 1562 | struct cfg80211_scan_request *req = &hw_req->req; |
8ca151b5 JB |
1563 | int ret; |
1564 | ||
762533ba DS |
1565 | if (req->n_channels == 0 || |
1566 | req->n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
1567 | return -EINVAL; |
1568 | ||
1569 | mutex_lock(&mvm->mutex); | |
1570 | ||
a6623e84 JB |
1571 | switch (mvm->scan_status) { |
1572 | case IWL_MVM_SCAN_SCHED: | |
636a2cdc | 1573 | ret = iwl_mvm_sched_scan_stop(mvm, true); |
a6623e84 JB |
1574 | if (ret) { |
1575 | ret = -EBUSY; | |
1576 | goto out; | |
1577 | } | |
a6623e84 JB |
1578 | break; |
1579 | case IWL_MVM_SCAN_NONE: | |
1580 | break; | |
1581 | default: | |
8ca151b5 | 1582 | ret = -EBUSY; |
519e2026 AN |
1583 | goto out; |
1584 | } | |
8ca151b5 | 1585 | |
519e2026 AN |
1586 | iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN); |
1587 | ||
1588 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
1589 | if (ret) | |
1590 | iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); | |
1591 | out: | |
8ca151b5 | 1592 | mutex_unlock(&mvm->mutex); |
33ea27f6 AN |
1593 | /* make sure to flush the Rx handler before the next scan arrives */ |
1594 | iwl_mvm_wait_for_async_handlers(mvm); | |
8ca151b5 JB |
1595 | return ret; |
1596 | } | |
1597 | ||
1598 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
1599 | struct ieee80211_vif *vif) | |
1600 | { | |
1601 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1602 | ||
1603 | mutex_lock(&mvm->mutex); | |
1604 | ||
1605 | iwl_mvm_cancel_scan(mvm); | |
1606 | ||
1607 | mutex_unlock(&mvm->mutex); | |
1608 | } | |
1609 | ||
1610 | static void | |
1611 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 1612 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
1613 | int num_frames, |
1614 | enum ieee80211_frame_release_type reason, | |
1615 | bool more_data) | |
1616 | { | |
1617 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 1618 | |
3e56eadf | 1619 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 1620 | |
3e56eadf JB |
1621 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
1622 | tids, more_data, false); | |
1623 | } | |
1624 | ||
1625 | static void | |
1626 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
1627 | struct ieee80211_sta *sta, u16 tids, | |
1628 | int num_frames, | |
1629 | enum ieee80211_frame_release_type reason, | |
1630 | bool more_data) | |
1631 | { | |
1632 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1633 | ||
1634 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
1635 | ||
1636 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
1637 | tids, more_data, true); | |
8ca151b5 JB |
1638 | } |
1639 | ||
1640 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
1641 | struct ieee80211_vif *vif, | |
1642 | enum sta_notify_cmd cmd, | |
1643 | struct ieee80211_sta *sta) | |
1644 | { | |
1645 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 1646 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3e56eadf | 1647 | int tid; |
8ca151b5 JB |
1648 | |
1649 | switch (cmd) { | |
1650 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 1651 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 1652 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf JB |
1653 | spin_lock_bh(&mvmsta->lock); |
1654 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1655 | struct iwl_mvm_tid_data *tid_data; | |
1656 | ||
1657 | tid_data = &mvmsta->tid_data[tid]; | |
1658 | if (tid_data->state != IWL_AGG_ON && | |
1659 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
1660 | continue; | |
1661 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
1662 | continue; | |
1663 | ieee80211_sta_set_buffered(sta, tid, true); | |
1664 | } | |
1665 | spin_unlock_bh(&mvmsta->lock); | |
8ca151b5 JB |
1666 | /* |
1667 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
1668 | * queues to this station will not be transmitted. The fw will | |
1669 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
1670 | */ | |
1671 | break; | |
1672 | case STA_NOTIFY_AWAKE: | |
881acd89 | 1673 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 1674 | break; |
9cc40712 | 1675 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
1676 | break; |
1677 | default: | |
1678 | break; | |
1679 | } | |
1680 | } | |
1681 | ||
1ddbbb0c JB |
1682 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
1683 | struct ieee80211_vif *vif, | |
1684 | struct ieee80211_sta *sta) | |
1685 | { | |
1686 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1687 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1688 | ||
1689 | /* | |
1690 | * This is called before mac80211 does RCU synchronisation, | |
1691 | * so here we already invalidate our internal RCU-protected | |
1692 | * station pointer. The rest of the code will thus no longer | |
1693 | * be able to find the station this way, and we don't rely | |
1694 | * on further RCU synchronisation after the sta_state() | |
1695 | * callback deleted the station. | |
1696 | */ | |
1697 | mutex_lock(&mvm->mutex); | |
1698 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
1699 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
1700 | ERR_PTR(-ENOENT)); | |
1701 | mutex_unlock(&mvm->mutex); | |
1702 | } | |
1703 | ||
8ca151b5 JB |
1704 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
1705 | struct ieee80211_vif *vif, | |
1706 | struct ieee80211_sta *sta, | |
1707 | enum ieee80211_sta_state old_state, | |
1708 | enum ieee80211_sta_state new_state) | |
1709 | { | |
1710 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1711 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1712 | int ret; | |
1713 | ||
1714 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1715 | sta->addr, old_state, new_state); | |
1716 | ||
1717 | /* this would be a mac80211 bug ... but don't crash */ | |
1718 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1719 | return -EINVAL; | |
1720 | ||
1721 | /* if a STA is being removed, reuse its ID */ | |
1722 | flush_work(&mvm->sta_drained_wk); | |
1723 | ||
1724 | mutex_lock(&mvm->mutex); | |
1725 | if (old_state == IEEE80211_STA_NOTEXIST && | |
1726 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
1727 | /* |
1728 | * Firmware bug - it'll crash if the beacon interval is less | |
1729 | * than 16. We can't avoid connecting at all, so refuse the | |
1730 | * station state change, this will cause mac80211 to abandon | |
1731 | * attempts to connect to this AP, and eventually wpa_s will | |
1732 | * blacklist the AP... | |
1733 | */ | |
1734 | if (vif->type == NL80211_IFTYPE_STATION && | |
1735 | vif->bss_conf.beacon_int < 16) { | |
1736 | IWL_ERR(mvm, | |
1737 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
1738 | sta->addr, vif->bss_conf.beacon_int); | |
1739 | ret = -EINVAL; | |
1740 | goto out_unlock; | |
1741 | } | |
8ca151b5 JB |
1742 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1743 | } else if (old_state == IEEE80211_STA_NONE && | |
1744 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
1745 | /* |
1746 | * EBS may be disabled due to previous failures reported by FW. | |
1747 | * Reset EBS status here assuming environment has been changed. | |
1748 | */ | |
1749 | mvm->last_ebs_successful = true; | |
8ca151b5 JB |
1750 | ret = 0; |
1751 | } else if (old_state == IEEE80211_STA_AUTH && | |
1752 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
1753 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
1754 | if (ret == 0) | |
1755 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
1756 | mvmvif->phy_ctxt->channel->band, |
1757 | true); | |
8ca151b5 JB |
1758 | } else if (old_state == IEEE80211_STA_ASSOC && |
1759 | new_state == IEEE80211_STA_AUTHORIZED) { | |
7df15b1e | 1760 | /* enable beacon filtering */ |
fa7b2e7f | 1761 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
1762 | ret = 0; |
1763 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
1764 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 1765 | /* disable beacon filtering */ |
a1022927 | 1766 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
1767 | ret = 0; |
1768 | } else if (old_state == IEEE80211_STA_ASSOC && | |
1769 | new_state == IEEE80211_STA_AUTH) { | |
1770 | ret = 0; | |
1771 | } else if (old_state == IEEE80211_STA_AUTH && | |
1772 | new_state == IEEE80211_STA_NONE) { | |
1773 | ret = 0; | |
1774 | } else if (old_state == IEEE80211_STA_NONE && | |
1775 | new_state == IEEE80211_STA_NOTEXIST) { | |
1776 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1777 | } else { | |
1778 | ret = -EIO; | |
1779 | } | |
48bc1307 | 1780 | out_unlock: |
8ca151b5 JB |
1781 | mutex_unlock(&mvm->mutex); |
1782 | ||
1783 | return ret; | |
1784 | } | |
1785 | ||
1786 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1787 | { | |
1788 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1789 | ||
1790 | mvm->rts_threshold = value; | |
1791 | ||
1792 | return 0; | |
1793 | } | |
1794 | ||
1f3b0ff8 LE |
1795 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
1796 | struct ieee80211_vif *vif, | |
1797 | struct ieee80211_sta *sta, u32 changed) | |
1798 | { | |
1799 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1800 | ||
1801 | if (vif->type == NL80211_IFTYPE_STATION && | |
1802 | changed & IEEE80211_RC_NSS_CHANGED) | |
1803 | iwl_mvm_sf_update(mvm, vif, false); | |
1804 | } | |
1805 | ||
8ca151b5 JB |
1806 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
1807 | struct ieee80211_vif *vif, u16 ac, | |
1808 | const struct ieee80211_tx_queue_params *params) | |
1809 | { | |
1810 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1811 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1812 | ||
1813 | mvmvif->queue_params[ac] = *params; | |
1814 | ||
1815 | /* | |
1816 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
1817 | * The exception is P2P_DEVICE interface which needs immediate update. | |
1818 | */ | |
1819 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1820 | int ret; | |
1821 | ||
1822 | mutex_lock(&mvm->mutex); | |
bca49d9a | 1823 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
8ca151b5 JB |
1824 | mutex_unlock(&mvm->mutex); |
1825 | return ret; | |
1826 | } | |
1827 | return 0; | |
1828 | } | |
1829 | ||
1830 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
1831 | struct ieee80211_vif *vif) | |
1832 | { | |
1833 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1834 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
1835 | 200 + vif->bss_conf.beacon_int); | |
1836 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
1837 | 100 + vif->bss_conf.beacon_int); | |
1838 | ||
1839 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
1840 | return; | |
1841 | ||
1842 | mutex_lock(&mvm->mutex); | |
1843 | /* Try really hard to protect the session and hear a beacon */ | |
016d27e1 | 1844 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500); |
8ca151b5 JB |
1845 | mutex_unlock(&mvm->mutex); |
1846 | } | |
1847 | ||
35a000b7 DS |
1848 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
1849 | struct ieee80211_vif *vif, | |
1850 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 1851 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
1852 | { |
1853 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1854 | int ret; | |
1855 | ||
1856 | mutex_lock(&mvm->mutex); | |
1857 | ||
b538b8ce | 1858 | if (!iwl_mvm_is_idle(mvm)) { |
bd5e4744 DS |
1859 | ret = -EBUSY; |
1860 | goto out; | |
1861 | } | |
1862 | ||
91b80256 AN |
1863 | switch (mvm->scan_status) { |
1864 | case IWL_MVM_SCAN_OS: | |
1865 | IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n"); | |
1866 | ret = iwl_mvm_cancel_scan(mvm); | |
1867 | if (ret) { | |
1868 | ret = -EBUSY; | |
1869 | goto out; | |
1870 | } | |
1871 | ||
1872 | /* | |
1873 | * iwl_mvm_rx_scan_complete() will be called soon but will | |
1874 | * not reset the scan status as it won't be IWL_MVM_SCAN_OS | |
1875 | * any more since we queue the next scan immediately (below). | |
1876 | * We make sure it is called before the next scan starts by | |
1877 | * flushing the async-handlers work. | |
1878 | */ | |
1879 | break; | |
1880 | case IWL_MVM_SCAN_NONE: | |
1881 | break; | |
1882 | default: | |
35a000b7 DS |
1883 | ret = -EBUSY; |
1884 | goto out; | |
1885 | } | |
1886 | ||
1887 | mvm->scan_status = IWL_MVM_SCAN_SCHED; | |
1888 | ||
1889 | ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies); | |
1890 | if (ret) | |
1891 | goto err; | |
1892 | ||
1893 | ret = iwl_mvm_config_sched_scan_profiles(mvm, req); | |
1894 | if (ret) | |
1895 | goto err; | |
1896 | ||
1897 | ret = iwl_mvm_sched_scan_start(mvm, req); | |
1898 | if (!ret) | |
1899 | goto out; | |
1900 | err: | |
1901 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
1902 | out: | |
1903 | mutex_unlock(&mvm->mutex); | |
91b80256 AN |
1904 | /* make sure to flush the Rx handler before the next scan arrives */ |
1905 | iwl_mvm_wait_for_async_handlers(mvm); | |
35a000b7 DS |
1906 | return ret; |
1907 | } | |
1908 | ||
37e3308c JB |
1909 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
1910 | struct ieee80211_vif *vif) | |
35a000b7 DS |
1911 | { |
1912 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 1913 | int ret; |
35a000b7 DS |
1914 | |
1915 | mutex_lock(&mvm->mutex); | |
636a2cdc | 1916 | ret = iwl_mvm_sched_scan_stop(mvm, false); |
35a000b7 | 1917 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 1918 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 1919 | |
33ea27f6 | 1920 | return ret; |
35a000b7 DS |
1921 | } |
1922 | ||
8ca151b5 JB |
1923 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
1924 | enum set_key_cmd cmd, | |
1925 | struct ieee80211_vif *vif, | |
1926 | struct ieee80211_sta *sta, | |
1927 | struct ieee80211_key_conf *key) | |
1928 | { | |
1929 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1930 | int ret; | |
1931 | ||
1932 | if (iwlwifi_mod_params.sw_crypto) { | |
1933 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
1934 | return -EOPNOTSUPP; | |
1935 | } | |
1936 | ||
1937 | switch (key->cipher) { | |
1938 | case WLAN_CIPHER_SUITE_TKIP: | |
1939 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1940 | /* fall-through */ | |
1941 | case WLAN_CIPHER_SUITE_CCMP: | |
1942 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1943 | break; | |
1944 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
1945 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
1946 | break; | |
1947 | case WLAN_CIPHER_SUITE_WEP40: | |
1948 | case WLAN_CIPHER_SUITE_WEP104: | |
1949 | /* | |
1950 | * Support for TX only, at least for now, so accept | |
1951 | * the key and do nothing else. Then mac80211 will | |
1952 | * pass it for TX but we don't have to use it for RX. | |
1953 | */ | |
1954 | return 0; | |
1955 | default: | |
e36e5433 MS |
1956 | /* currently FW supports only one optional cipher scheme */ |
1957 | if (hw->n_cipher_schemes && | |
1958 | hw->cipher_schemes->cipher == key->cipher) | |
1959 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
1960 | else | |
1961 | return -EOPNOTSUPP; | |
8ca151b5 JB |
1962 | } |
1963 | ||
1964 | mutex_lock(&mvm->mutex); | |
1965 | ||
1966 | switch (cmd) { | |
1967 | case SET_KEY: | |
5023d966 JB |
1968 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
1969 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
1970 | /* | |
1971 | * GTK on AP interface is a TX-only key, return 0; | |
1972 | * on IBSS they're per-station and because we're lazy | |
1973 | * we don't support them for RX, so do the same. | |
1974 | */ | |
6caffd4f JB |
1975 | ret = 0; |
1976 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
1977 | break; | |
1978 | } | |
1979 | ||
8ca151b5 JB |
1980 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
1981 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
1982 | if (ret) { | |
1983 | IWL_WARN(mvm, "set key failed\n"); | |
1984 | /* | |
1985 | * can't add key for RX, but we don't need it | |
1986 | * in the device for TX so still return 0 | |
1987 | */ | |
6caffd4f | 1988 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
1989 | ret = 0; |
1990 | } | |
1991 | ||
1992 | break; | |
1993 | case DISABLE_KEY: | |
6caffd4f JB |
1994 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
1995 | ret = 0; | |
1996 | break; | |
1997 | } | |
1998 | ||
8ca151b5 JB |
1999 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2000 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2001 | break; | |
2002 | default: | |
2003 | ret = -EINVAL; | |
2004 | } | |
2005 | ||
2006 | mutex_unlock(&mvm->mutex); | |
2007 | return ret; | |
2008 | } | |
2009 | ||
2010 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2011 | struct ieee80211_vif *vif, | |
2012 | struct ieee80211_key_conf *keyconf, | |
2013 | struct ieee80211_sta *sta, | |
2014 | u32 iv32, u16 *phase1key) | |
2015 | { | |
2016 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2017 | ||
5023d966 JB |
2018 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2019 | return; | |
2020 | ||
8ca151b5 JB |
2021 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2022 | } | |
2023 | ||
2024 | ||
2025 | static int iwl_mvm_roc(struct ieee80211_hw *hw, | |
2026 | struct ieee80211_vif *vif, | |
2027 | struct ieee80211_channel *channel, | |
d339d5ca IP |
2028 | int duration, |
2029 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
2030 | { |
2031 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 2032 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 2033 | struct cfg80211_chan_def chandef; |
31d385ae IP |
2034 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
2035 | int ret, i; | |
2036 | ||
2037 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
2038 | duration, type); | |
8ca151b5 JB |
2039 | |
2040 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { | |
2041 | IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); | |
2042 | return -EINVAL; | |
2043 | } | |
2044 | ||
8ca151b5 JB |
2045 | mutex_lock(&mvm->mutex); |
2046 | ||
31d385ae IP |
2047 | for (i = 0; i < NUM_PHY_CTX; i++) { |
2048 | phy_ctxt = &mvm->phy_ctxts[i]; | |
2049 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
2050 | continue; | |
2051 | ||
2052 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
2053 | /* | |
2054 | * Unbind the P2P_DEVICE from the current PHY context, | |
2055 | * and if the PHY context is not used remove it. | |
2056 | */ | |
2057 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
2058 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
2059 | goto out_unlock; | |
2060 | ||
2061 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
2062 | ||
2063 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
2064 | mvmvif->phy_ctxt = phy_ctxt; | |
2065 | ||
2066 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2067 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
2068 | goto out_unlock; | |
2069 | ||
2070 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
2071 | goto schedule_time_event; | |
2072 | } | |
2073 | } | |
2074 | ||
2075 | /* Need to update the PHY context only if the ROC channel changed */ | |
2076 | if (channel == mvmvif->phy_ctxt->channel) | |
2077 | goto schedule_time_event; | |
2078 | ||
8ca151b5 | 2079 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 2080 | |
31d385ae IP |
2081 | /* |
2082 | * Change the PHY context configuration as it is currently referenced | |
2083 | * only by the P2P Device MAC | |
2084 | */ | |
2085 | if (mvmvif->phy_ctxt->ref == 1) { | |
2086 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
2087 | &chandef, 1, 1); | |
2088 | if (ret) | |
2089 | goto out_unlock; | |
2090 | } else { | |
2091 | /* | |
2092 | * The PHY context is shared with other MACs. Need to remove the | |
2093 | * P2P Device from the binding, allocate an new PHY context and | |
2094 | * create a new binding | |
2095 | */ | |
2096 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
2097 | if (!phy_ctxt) { | |
2098 | ret = -ENOSPC; | |
2099 | goto out_unlock; | |
2100 | } | |
2101 | ||
2102 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
2103 | 1, 1); | |
2104 | if (ret) { | |
2105 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
2106 | goto out_unlock; | |
2107 | } | |
2108 | ||
2109 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
2110 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
2111 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
2112 | goto out_unlock; | |
2113 | ||
2114 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
2115 | ||
2116 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
2117 | mvmvif->phy_ctxt = phy_ctxt; | |
2118 | ||
2119 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2120 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
2121 | goto out_unlock; | |
2122 | ||
2123 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
2124 | } | |
2125 | ||
2126 | schedule_time_event: | |
8ca151b5 | 2127 | /* Schedule the time events */ |
e635c797 | 2128 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 2129 | |
31d385ae | 2130 | out_unlock: |
8ca151b5 JB |
2131 | mutex_unlock(&mvm->mutex); |
2132 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
2133 | return ret; |
2134 | } | |
2135 | ||
2136 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
2137 | { | |
2138 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2139 | ||
2140 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
2141 | ||
2142 | mutex_lock(&mvm->mutex); | |
2143 | iwl_mvm_stop_p2p_roc(mvm); | |
2144 | mutex_unlock(&mvm->mutex); | |
2145 | ||
2146 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
2147 | return 0; | |
2148 | } | |
2149 | ||
2150 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
2151 | struct ieee80211_chanctx_conf *ctx) | |
2152 | { | |
2153 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2154 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2155 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
2156 | int ret; |
2157 | ||
53a9d61e | 2158 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 2159 | |
8ca151b5 | 2160 | mutex_lock(&mvm->mutex); |
fe0f2de3 IP |
2161 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
2162 | if (!phy_ctxt) { | |
2163 | ret = -ENOSPC; | |
2164 | goto out; | |
2165 | } | |
8ca151b5 | 2166 | |
dcbc3e1a | 2167 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
2168 | ctx->rx_chains_static, |
2169 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
2170 | if (ret) { |
2171 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
2172 | goto out; | |
2173 | } | |
2174 | ||
53a9d61e | 2175 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
2176 | *phy_ctxt_id = phy_ctxt->id; |
2177 | out: | |
8ca151b5 JB |
2178 | mutex_unlock(&mvm->mutex); |
2179 | return ret; | |
2180 | } | |
2181 | ||
2182 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, | |
2183 | struct ieee80211_chanctx_conf *ctx) | |
2184 | { | |
2185 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2186 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2187 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
2188 | |
2189 | mutex_lock(&mvm->mutex); | |
fe0f2de3 | 2190 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
8ca151b5 JB |
2191 | mutex_unlock(&mvm->mutex); |
2192 | } | |
2193 | ||
2194 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
2195 | struct ieee80211_chanctx_conf *ctx, | |
2196 | u32 changed) | |
2197 | { | |
2198 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2199 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2200 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 2201 | |
31d385ae IP |
2202 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
2203 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
2204 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
2205 | IEEE80211_CHANCTX_CHANGE_RADAR | |
2206 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
2207 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
2208 | phy_ctxt->ref, changed)) | |
2209 | return; | |
2210 | ||
8ca151b5 | 2211 | mutex_lock(&mvm->mutex); |
4d66449a | 2212 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 2213 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
2214 | ctx->rx_chains_static, |
2215 | ctx->rx_chains_dynamic); | |
2216 | mutex_unlock(&mvm->mutex); | |
2217 | } | |
2218 | ||
2219 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, | |
2220 | struct ieee80211_vif *vif, | |
2221 | struct ieee80211_chanctx_conf *ctx) | |
2222 | { | |
2223 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
2224 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2225 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
2226 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
2227 | int ret; | |
2228 | ||
2229 | mutex_lock(&mvm->mutex); | |
2230 | ||
fe0f2de3 | 2231 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
2232 | |
2233 | switch (vif->type) { | |
2234 | case NL80211_IFTYPE_AP: | |
bd3398e2 AO |
2235 | /* Unless it's a CSA flow we have nothing to do here */ |
2236 | if (vif->csa_active) { | |
2237 | mvmvif->ap_ibss_active = true; | |
2238 | break; | |
2239 | } | |
5023d966 | 2240 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
2241 | /* |
2242 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 2243 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
2244 | */ |
2245 | ret = 0; | |
2246 | goto out_unlock; | |
2247 | case NL80211_IFTYPE_STATION: | |
8ca151b5 JB |
2248 | case NL80211_IFTYPE_MONITOR: |
2249 | break; | |
2250 | default: | |
2251 | ret = -EINVAL; | |
2252 | goto out_unlock; | |
2253 | } | |
2254 | ||
2255 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2256 | if (ret) | |
2257 | goto out_unlock; | |
2258 | ||
2259 | /* | |
92d85562 AB |
2260 | * Power state must be updated before quotas, |
2261 | * otherwise fw will complain. | |
2262 | */ | |
999609f1 | 2263 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
2264 | |
2265 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
2266 | * interfaces. For the other types, the bss_info changed flow |
2267 | * will handle quota settings. | |
2268 | */ | |
2269 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 2270 | mvmvif->monitor_active = true; |
8ca151b5 JB |
2271 | ret = iwl_mvm_update_quotas(mvm, vif); |
2272 | if (ret) | |
2273 | goto out_remove_binding; | |
2274 | } | |
2275 | ||
bd3398e2 AO |
2276 | /* Handle binding during CSA */ |
2277 | if (vif->type == NL80211_IFTYPE_AP) { | |
2278 | iwl_mvm_update_quotas(mvm, vif); | |
bca49d9a | 2279 | iwl_mvm_mac_ctxt_changed(mvm, vif, false); |
bd3398e2 AO |
2280 | } |
2281 | ||
8ca151b5 JB |
2282 | goto out_unlock; |
2283 | ||
2284 | out_remove_binding: | |
2285 | iwl_mvm_binding_remove_vif(mvm, vif); | |
999609f1 | 2286 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
2287 | out_unlock: |
2288 | mutex_unlock(&mvm->mutex); | |
2289 | if (ret) | |
2290 | mvmvif->phy_ctxt = NULL; | |
2291 | return ret; | |
2292 | } | |
2293 | ||
2294 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
2295 | struct ieee80211_vif *vif, | |
2296 | struct ieee80211_chanctx_conf *ctx) | |
2297 | { | |
2298 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2299 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2300 | ||
2301 | mutex_lock(&mvm->mutex); | |
2302 | ||
2303 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
2304 | ||
8ca151b5 | 2305 | switch (vif->type) { |
5023d966 JB |
2306 | case NL80211_IFTYPE_ADHOC: |
2307 | goto out_unlock; | |
8ca151b5 | 2308 | case NL80211_IFTYPE_MONITOR: |
1e1391ca IP |
2309 | mvmvif->monitor_active = false; |
2310 | iwl_mvm_update_quotas(mvm, NULL); | |
8ca151b5 | 2311 | break; |
bd3398e2 AO |
2312 | case NL80211_IFTYPE_AP: |
2313 | /* This part is triggered only during CSA */ | |
2314 | if (!vif->csa_active || !mvmvif->ap_ibss_active) | |
2315 | goto out_unlock; | |
2316 | ||
2317 | mvmvif->ap_ibss_active = false; | |
2318 | iwl_mvm_update_quotas(mvm, NULL); | |
2319 | /*TODO: bt_coex notification here? */ | |
8ca151b5 JB |
2320 | default: |
2321 | break; | |
2322 | } | |
2323 | ||
1e1391ca | 2324 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 2325 | |
a11e144e IP |
2326 | out_unlock: |
2327 | mvmvif->phy_ctxt = NULL; | |
999609f1 | 2328 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
2329 | mutex_unlock(&mvm->mutex); |
2330 | } | |
2331 | ||
2332 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, | |
2333 | struct ieee80211_sta *sta, | |
2334 | bool set) | |
2335 | { | |
2336 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2337 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
2338 | ||
2339 | if (!mvm_sta || !mvm_sta->vif) { | |
2340 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
2341 | return -EINVAL; | |
2342 | } | |
2343 | ||
2344 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
2345 | } | |
2346 | ||
507cadf2 DS |
2347 | #ifdef CONFIG_NL80211_TESTMODE |
2348 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
2349 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
2350 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 2351 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
2352 | }; |
2353 | ||
2354 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
2355 | struct ieee80211_vif *vif, | |
2356 | void *data, int len) | |
2357 | { | |
2358 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
2359 | int err; | |
2360 | u32 noa_duration; | |
2361 | ||
2362 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
2363 | if (err) | |
2364 | return err; | |
2365 | ||
2366 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
2367 | return -EINVAL; | |
2368 | ||
2369 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
2370 | case IWL_MVM_TM_CMD_SET_NOA: | |
2371 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
2372 | !vif->bss_conf.enable_beacon || | |
2373 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
2374 | return -EINVAL; | |
2375 | ||
2376 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
2377 | if (noa_duration >= vif->bss_conf.beacon_int) | |
2378 | return -EINVAL; | |
2379 | ||
2380 | mvm->noa_duration = noa_duration; | |
2381 | mvm->noa_vif = vif; | |
2382 | ||
2383 | return iwl_mvm_update_quotas(mvm, NULL); | |
f6c6ad42 JB |
2384 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
2385 | /* must be associated client vif - ignore authorized */ | |
2386 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
2387 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
2388 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
2389 | return -EINVAL; | |
2390 | ||
2391 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
2392 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
2393 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
2394 | } |
2395 | ||
2396 | return -EOPNOTSUPP; | |
2397 | } | |
2398 | ||
2399 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
2400 | struct ieee80211_vif *vif, | |
2401 | void *data, int len) | |
2402 | { | |
2403 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2404 | int err; | |
2405 | ||
2406 | mutex_lock(&mvm->mutex); | |
2407 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
2408 | mutex_unlock(&mvm->mutex); | |
2409 | ||
2410 | return err; | |
2411 | } | |
2412 | #endif | |
2413 | ||
bd3398e2 AO |
2414 | static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw, |
2415 | struct ieee80211_vif *vif, | |
2416 | struct cfg80211_chan_def *chandef) | |
2417 | { | |
2418 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2419 | ||
2420 | mutex_lock(&mvm->mutex); | |
2421 | if (WARN(mvm->csa_vif && mvm->csa_vif->csa_active, | |
2422 | "Another CSA is already in progress")) | |
2423 | goto out_unlock; | |
2424 | ||
2425 | IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n", | |
2426 | chandef->center_freq1); | |
2427 | mvm->csa_vif = vif; | |
2428 | ||
2429 | out_unlock: | |
2430 | mutex_unlock(&mvm->mutex); | |
2431 | } | |
2432 | ||
c5b0e7c0 EG |
2433 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
2434 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
2435 | { | |
2436 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2437 | struct iwl_mvm_vif *mvmvif; | |
2438 | struct iwl_mvm_sta *mvmsta; | |
2439 | ||
2440 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
2441 | return; | |
2442 | ||
2443 | mutex_lock(&mvm->mutex); | |
2444 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2445 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id); | |
2446 | ||
2447 | if (WARN_ON_ONCE(!mvmsta)) | |
2448 | goto done; | |
2449 | ||
2450 | if (drop) { | |
2451 | if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true)) | |
2452 | IWL_ERR(mvm, "flush request fail\n"); | |
2453 | } else { | |
2454 | iwl_trans_wait_tx_queue_empty(mvm->trans, | |
2455 | mvmsta->tfd_queue_msk); | |
2456 | } | |
2457 | done: | |
2458 | mutex_unlock(&mvm->mutex); | |
2459 | } | |
2460 | ||
e5209263 | 2461 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
2462 | .tx = iwl_mvm_mac_tx, |
2463 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
2464 | .start = iwl_mvm_mac_start, | |
2465 | .restart_complete = iwl_mvm_mac_restart_complete, | |
2466 | .stop = iwl_mvm_mac_stop, | |
2467 | .add_interface = iwl_mvm_mac_add_interface, | |
2468 | .remove_interface = iwl_mvm_mac_remove_interface, | |
2469 | .config = iwl_mvm_mac_config, | |
e59647ea | 2470 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
2471 | .configure_filter = iwl_mvm_configure_filter, |
2472 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
2473 | .hw_scan = iwl_mvm_mac_hw_scan, | |
2474 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 2475 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
2476 | .sta_state = iwl_mvm_mac_sta_state, |
2477 | .sta_notify = iwl_mvm_mac_sta_notify, | |
2478 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 2479 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 2480 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 2481 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
2482 | .conf_tx = iwl_mvm_mac_conf_tx, |
2483 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
c5b0e7c0 | 2484 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
2485 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
2486 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
2487 | .set_key = iwl_mvm_mac_set_key, |
2488 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
2489 | .remain_on_channel = iwl_mvm_roc, | |
2490 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
2491 | .add_chanctx = iwl_mvm_add_chanctx, |
2492 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
2493 | .change_chanctx = iwl_mvm_change_chanctx, | |
2494 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
2495 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
2496 | ||
5023d966 JB |
2497 | .start_ap = iwl_mvm_start_ap_ibss, |
2498 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
2499 | .join_ibss = iwl_mvm_start_ap_ibss, | |
2500 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
2501 | |
2502 | .set_tim = iwl_mvm_set_tim, | |
2503 | ||
bd3398e2 AO |
2504 | .channel_switch_beacon = iwl_mvm_channel_switch_beacon, |
2505 | ||
507cadf2 DS |
2506 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
2507 | ||
8ca151b5 JB |
2508 | #ifdef CONFIG_PM_SLEEP |
2509 | /* look at d3.c */ | |
2510 | .suspend = iwl_mvm_suspend, | |
2511 | .resume = iwl_mvm_resume, | |
2512 | .set_wakeup = iwl_mvm_set_wakeup, | |
2513 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
2514 | #if IS_ENABLED(CONFIG_IPV6) | |
2515 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
2516 | #endif | |
2517 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
2518 | #endif | |
2519 | }; |