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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> |
f0c2646a | 71 | #include <net/tcp.h> |
8ca151b5 JB |
72 | |
73 | #include "iwl-op-mode.h" | |
74 | #include "iwl-io.h" | |
75 | #include "mvm.h" | |
76 | #include "sta.h" | |
77 | #include "time-event.h" | |
78 | #include "iwl-eeprom-parse.h" | |
79 | #include "fw-api-scan.h" | |
80 | #include "iwl-phy-db.h" | |
507cadf2 | 81 | #include "testmode.h" |
8ca151b5 JB |
82 | |
83 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
84 | { | |
85 | .max = 1, | |
8eb38710 | 86 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 87 | }, |
3c15a0fb JB |
88 | { |
89 | .max = 1, | |
8eb38710 IP |
90 | .types = BIT(NL80211_IFTYPE_AP) | |
91 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
92 | BIT(NL80211_IFTYPE_P2P_GO), |
93 | }, | |
94 | { | |
95 | .max = 1, | |
96 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
97 | }, | |
8ca151b5 JB |
98 | }; |
99 | ||
100 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
101 | { | |
102 | .num_different_channels = 1, | |
103 | .max_interfaces = 3, | |
104 | .limits = iwl_mvm_limits, | |
105 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
106 | }, | |
107 | }; | |
108 | ||
f0c2646a JB |
109 | #ifdef CONFIG_PM_SLEEP |
110 | static const struct nl80211_wowlan_tcp_data_token_feature | |
111 | iwl_mvm_wowlan_tcp_token_feature = { | |
112 | .min_len = 0, | |
113 | .max_len = 255, | |
114 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
115 | }; | |
116 | ||
117 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
118 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
119 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
120 | sizeof(struct ethhdr) - | |
121 | sizeof(struct iphdr) - | |
122 | sizeof(struct tcphdr), | |
123 | .data_interval_max = 65535, /* __le16 in API */ | |
124 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
125 | sizeof(struct ethhdr) - | |
126 | sizeof(struct iphdr) - | |
127 | sizeof(struct tcphdr), | |
128 | .seq = true, | |
129 | }; | |
130 | #endif | |
131 | ||
77736923 | 132 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
133 | /* |
134 | * Use the reserved field to indicate magic values. | |
135 | * these values will only be used internally by the driver, | |
136 | * and won't make it to the fw (reserved will be 0). | |
137 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
138 | * be the vif's ip address. in case there is not a single | |
139 | * ip address (0, or more than 1), this attribute will | |
140 | * be skipped. | |
141 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
142 | * the LSB bytes of the vif's mac address | |
143 | */ | |
144 | enum { | |
145 | BC_FILTER_MAGIC_NONE = 0, | |
146 | BC_FILTER_MAGIC_IP, | |
147 | BC_FILTER_MAGIC_MAC, | |
148 | }; | |
149 | ||
77736923 EP |
150 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
151 | { | |
152 | /* arp */ | |
153 | .discard = 0, | |
154 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
155 | .attrs = { | |
156 | { | |
157 | /* frame type - arp, hw type - ethernet */ | |
158 | .offset_type = | |
159 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
160 | .offset = sizeof(rfc1042_header), | |
161 | .val = cpu_to_be32(0x08060001), | |
162 | .mask = cpu_to_be32(0xffffffff), | |
163 | }, | |
2ee8f021 EP |
164 | { |
165 | /* arp dest ip */ | |
166 | .offset_type = | |
167 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
168 | .offset = sizeof(rfc1042_header) + 2 + | |
169 | sizeof(struct arphdr) + | |
170 | ETH_ALEN + sizeof(__be32) + | |
171 | ETH_ALEN, | |
172 | .mask = cpu_to_be32(0xffffffff), | |
173 | /* mark it as special field */ | |
174 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
175 | }, | |
176 | }, | |
177 | }, | |
178 | { | |
179 | /* dhcp offer bcast */ | |
180 | .discard = 0, | |
181 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
182 | .attrs = { | |
183 | { | |
184 | /* udp dest port - 68 (bootp client)*/ | |
185 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
186 | .offset = offsetof(struct udphdr, dest), | |
187 | .val = cpu_to_be32(0x00440000), | |
188 | .mask = cpu_to_be32(0xffff0000), | |
189 | }, | |
190 | { | |
191 | /* dhcp - lsb bytes of client hw address */ | |
192 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
193 | .offset = 38, | |
194 | .mask = cpu_to_be32(0xffffffff), | |
195 | /* mark it as special field */ | |
196 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
197 | }, | |
77736923 EP |
198 | }, |
199 | }, | |
200 | /* last filter must be empty */ | |
201 | {}, | |
202 | }; | |
203 | #endif | |
204 | ||
fe0f2de3 IP |
205 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
206 | { | |
207 | int i; | |
208 | ||
209 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
210 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
211 | mvm->phy_ctxts[i].id = i; | |
212 | mvm->phy_ctxts[i].ref = 0; | |
213 | } | |
214 | } | |
215 | ||
20f1a5de DS |
216 | static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm) |
217 | { | |
218 | /* we create the 802.11 header and SSID element */ | |
219 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID) | |
220 | return mvm->fw->ucode_capa.max_probe_length - 24 - 2; | |
221 | return mvm->fw->ucode_capa.max_probe_length - 24 - 34; | |
222 | } | |
223 | ||
8ca151b5 JB |
224 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
225 | { | |
226 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 227 | int num_mac, ret, i; |
8ca151b5 JB |
228 | |
229 | /* Tell mac80211 our characteristics */ | |
230 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
231 | IEEE80211_HW_SPECTRUM_MGMT | | |
232 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
233 | IEEE80211_HW_QUEUE_CONTROL | | |
234 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
235 | IEEE80211_HW_SUPPORTS_PS | |
236 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 237 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 238 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be EG |
239 | IEEE80211_HW_CONNECTION_MONITOR | |
240 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | | |
e8e626ad | 241 | IEEE80211_HW_SUPPORTS_STATIC_SMPS; |
8ca151b5 | 242 | |
19e737c9 | 243 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 244 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
8ca151b5 JB |
245 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
246 | ||
247 | /* | |
248 | * Enable 11w if advertised by firmware and software crypto | |
249 | * is not enabled (as the firmware will interpret some mgmt | |
250 | * packets, so enabling it with software crypto isn't safe) | |
251 | */ | |
252 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
253 | !iwlwifi_mod_params.sw_crypto) | |
254 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
255 | ||
e8e626ad AB |
256 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) { |
257 | hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD; | |
258 | hw->uapsd_queues = IWL_UAPSD_AC_INFO; | |
259 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
260 | } | |
261 | ||
8ca151b5 JB |
262 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
263 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 264 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
265 | |
266 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
267 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
268 | BIT(NL80211_IFTYPE_AP) | | |
269 | BIT(NL80211_IFTYPE_P2P_GO) | | |
270 | BIT(NL80211_IFTYPE_P2P_DEVICE); | |
8ca151b5 | 271 | |
5023d966 JB |
272 | /* IBSS has bugs in older versions */ |
273 | if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8) | |
274 | hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); | |
275 | ||
a2f73b6c LR |
276 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
277 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
278 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 279 | |
3e56eadf JB |
280 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
281 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
282 | ||
8ca151b5 JB |
283 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
284 | hw->wiphy->n_iface_combinations = | |
285 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
286 | ||
c451e6d4 | 287 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 JB |
288 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
289 | ||
290 | /* Extract MAC address */ | |
291 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
292 | hw->wiphy->addresses = mvm->addresses; | |
293 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
294 | |
295 | /* Extract additional MAC addresses if available */ | |
296 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
297 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
298 | ||
299 | for (i = 1; i < num_mac; i++) { | |
300 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 301 | ETH_ALEN); |
831e85f3 | 302 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
303 | hw->wiphy->n_addresses++; |
304 | } | |
305 | ||
fe0f2de3 IP |
306 | iwl_mvm_reset_phy_ctxts(mvm); |
307 | ||
20f1a5de DS |
308 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
309 | ||
8ca151b5 JB |
310 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
311 | ||
312 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
313 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
314 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
315 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) | |
316 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = | |
317 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
318 | ||
319 | hw->wiphy->hw_version = mvm->trans->hw_id; | |
320 | ||
ade50652 | 321 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
322 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
323 | else | |
324 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
325 | ||
35a000b7 DS |
326 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) { |
327 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; | |
328 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
329 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
330 | /* we create the 802.11 header and zero length SSID IE. */ | |
331 | hw->wiphy->max_sched_scan_ie_len = | |
332 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
333 | } | |
334 | ||
8ca151b5 | 335 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
61f6325d HD |
336 | NL80211_FEATURE_P2P_GO_OPPPS | |
337 | NL80211_FEATURE_LOW_PRIORITY_SCAN; | |
8ca151b5 JB |
338 | |
339 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; | |
340 | ||
e36e5433 | 341 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 342 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 343 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 344 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
345 | } |
346 | ||
8ca151b5 JB |
347 | #ifdef CONFIG_PM_SLEEP |
348 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
349 | mvm->trans->ops->d3_suspend && | |
350 | mvm->trans->ops->d3_resume && | |
351 | device_can_wakeup(mvm->trans->dev)) { | |
964dc9e2 JB |
352 | mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
353 | WIPHY_WOWLAN_DISCONNECT | | |
354 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
355 | WIPHY_WOWLAN_RFKILL_RELEASE; | |
8ca151b5 | 356 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
357 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
358 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
359 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
360 | ||
361 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
362 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
363 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
364 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; | |
365 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
366 | } |
367 | #endif | |
368 | ||
77736923 EP |
369 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
370 | /* assign default bcast filtering configuration */ | |
371 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
372 | #endif | |
373 | ||
8ca151b5 JB |
374 | ret = iwl_mvm_leds_init(mvm); |
375 | if (ret) | |
376 | return ret; | |
377 | ||
b7327d89 EG |
378 | ret = ieee80211_register_hw(mvm->hw); |
379 | if (ret) | |
380 | iwl_mvm_leds_exit(mvm); | |
381 | ||
382 | return ret; | |
8ca151b5 JB |
383 | } |
384 | ||
385 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, | |
386 | struct ieee80211_tx_control *control, | |
387 | struct sk_buff *skb) | |
388 | { | |
389 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
390 | struct ieee80211_sta *sta = control->sta; |
391 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
392 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 393 | |
9ee718aa EL |
394 | if (iwl_mvm_is_radio_killed(mvm)) { |
395 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
396 | goto drop; |
397 | } | |
398 | ||
398e8c6c | 399 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
8ca151b5 JB |
400 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
401 | goto drop; | |
402 | ||
3e56eadf JB |
403 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
404 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
405 | ieee80211_is_mgmt(hdr->frame_control) && | |
406 | !ieee80211_is_deauth(hdr->frame_control) && | |
407 | !ieee80211_is_disassoc(hdr->frame_control) && | |
408 | !ieee80211_is_action(hdr->frame_control))) | |
409 | sta = NULL; | |
410 | ||
411 | if (sta) { | |
412 | if (iwl_mvm_tx_skb(mvm, skb, sta)) | |
8ca151b5 JB |
413 | goto drop; |
414 | return; | |
415 | } | |
416 | ||
417 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
418 | goto drop; | |
419 | return; | |
420 | drop: | |
421 | ieee80211_free_txskb(hw, skb); | |
422 | } | |
423 | ||
424 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, | |
425 | struct ieee80211_vif *vif, | |
426 | enum ieee80211_ampdu_mlme_action action, | |
427 | struct ieee80211_sta *sta, u16 tid, | |
428 | u16 *ssn, u8 buf_size) | |
429 | { | |
430 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
431 | int ret; | |
432 | ||
433 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
434 | sta->addr, tid, action); | |
435 | ||
436 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
437 | return -EACCES; | |
438 | ||
439 | mutex_lock(&mvm->mutex); | |
440 | ||
441 | switch (action) { | |
442 | case IEEE80211_AMPDU_RX_START: | |
443 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) { | |
444 | ret = -EINVAL; | |
445 | break; | |
446 | } | |
447 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
448 | break; | |
449 | case IEEE80211_AMPDU_RX_STOP: | |
450 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
451 | break; | |
452 | case IEEE80211_AMPDU_TX_START: | |
5d158efa EG |
453 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) { |
454 | ret = -EINVAL; | |
455 | break; | |
456 | } | |
8ca151b5 JB |
457 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
458 | break; | |
459 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
460 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
461 | break; | |
8ca151b5 JB |
462 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
463 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 464 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
465 | break; |
466 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
467 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
468 | break; | |
469 | default: | |
470 | WARN_ON_ONCE(1); | |
471 | ret = -EINVAL; | |
472 | break; | |
473 | } | |
474 | mutex_unlock(&mvm->mutex); | |
475 | ||
476 | return ret; | |
477 | } | |
478 | ||
479 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
480 | struct ieee80211_vif *vif) | |
481 | { | |
482 | struct iwl_mvm *mvm = data; | |
483 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
484 | ||
485 | mvmvif->uploaded = false; | |
486 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
487 | ||
488 | /* does this make sense at all? */ | |
489 | mvmvif->color++; | |
490 | ||
491 | spin_lock_bh(&mvm->time_event_lock); | |
492 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
493 | spin_unlock_bh(&mvm->time_event_lock); | |
494 | ||
fe0f2de3 | 495 | mvmvif->phy_ctxt = NULL; |
8ca151b5 JB |
496 | } |
497 | ||
498 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
499 | { | |
500 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
501 | |
502 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
503 | ||
504 | /* just in case one was running */ | |
505 | ieee80211_remain_on_channel_expired(mvm->hw); | |
506 | ||
507 | ieee80211_iterate_active_interfaces_atomic( | |
508 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
509 | iwl_mvm_cleanup_iterator, mvm); | |
510 | ||
fe0f2de3 IP |
511 | mvm->p2p_device_vif = NULL; |
512 | ||
513 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
514 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
515 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
516 | ||
517 | ieee80211_wake_queues(mvm->hw); | |
518 | ||
519 | mvm->vif_count = 0; | |
113a0447 | 520 | mvm->rx_ba_sessions = 0; |
8ca151b5 JB |
521 | } |
522 | ||
523 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
524 | { | |
525 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
526 | int ret; | |
527 | ||
528 | mutex_lock(&mvm->mutex); | |
529 | ||
530 | /* Clean up some internal and mac80211 state on restart */ | |
531 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
532 | iwl_mvm_restart_cleanup(mvm); | |
533 | ||
534 | ret = iwl_mvm_up(mvm); | |
535 | mutex_unlock(&mvm->mutex); | |
536 | ||
537 | return ret; | |
538 | } | |
539 | ||
540 | static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) | |
541 | { | |
542 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
543 | int ret; | |
544 | ||
545 | mutex_lock(&mvm->mutex); | |
546 | ||
547 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
548 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
549 | if (ret) | |
550 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
551 | ret); | |
552 | ||
553 | mutex_unlock(&mvm->mutex); | |
554 | } | |
555 | ||
556 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) | |
557 | { | |
558 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
559 | ||
560 | flush_work(&mvm->async_handlers_wk); | |
561 | ||
562 | mutex_lock(&mvm->mutex); | |
563 | /* async_handlers_wk is now blocked */ | |
564 | ||
565 | /* | |
566 | * The work item could be running or queued if the | |
567 | * ROC time event stops just as we get here. | |
568 | */ | |
569 | cancel_work_sync(&mvm->roc_done_wk); | |
570 | ||
571 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
572 | |
573 | iwl_mvm_async_handlers_purge(mvm); | |
574 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
575 | ||
576 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
577 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
578 | ||
579 | mutex_unlock(&mvm->mutex); | |
580 | ||
581 | /* | |
582 | * The worker might have been waiting for the mutex, let it run and | |
583 | * discover that its list is now empty. | |
584 | */ | |
585 | cancel_work_sync(&mvm->async_handlers_wk); | |
586 | } | |
587 | ||
8ca151b5 JB |
588 | static void iwl_mvm_power_update_iterator(void *data, u8 *mac, |
589 | struct ieee80211_vif *vif) | |
590 | { | |
591 | struct iwl_mvm *mvm = data; | |
592 | ||
593 | iwl_mvm_power_update_mode(mvm, vif); | |
594 | } | |
595 | ||
fe0f2de3 IP |
596 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
597 | { | |
598 | u16 i; | |
599 | ||
600 | lockdep_assert_held(&mvm->mutex); | |
601 | ||
602 | for (i = 0; i < NUM_PHY_CTX; i++) | |
603 | if (!mvm->phy_ctxts[i].ref) | |
604 | return &mvm->phy_ctxts[i]; | |
605 | ||
606 | IWL_ERR(mvm, "No available PHY context\n"); | |
607 | return NULL; | |
608 | } | |
609 | ||
ee9c6cb0 EG |
610 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
611 | s8 tx_power) | |
612 | { | |
613 | /* FW is in charge of regulatory enforcement */ | |
614 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
615 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
616 | .pwr_restriction = cpu_to_le16(tx_power), | |
617 | }; | |
618 | ||
619 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC, | |
620 | sizeof(reduce_txpwr_cmd), | |
621 | &reduce_txpwr_cmd); | |
622 | } | |
623 | ||
8ca151b5 JB |
624 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
625 | struct ieee80211_vif *vif) | |
626 | { | |
627 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
628 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
629 | int ret; | |
630 | ||
631 | /* | |
632 | * Not much to do here. The stack will not allow interface | |
633 | * types or combinations that we didn't advertise, so we | |
634 | * don't really have to check the types. | |
635 | */ | |
636 | ||
637 | mutex_lock(&mvm->mutex); | |
638 | ||
e89044d7 | 639 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
640 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
641 | if (ret) | |
642 | goto out_unlock; | |
643 | ||
1c2abf72 | 644 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
645 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
646 | mvm->vif_count++; | |
ea183d02 | 647 | |
8ca151b5 JB |
648 | /* |
649 | * The AP binding flow can be done only after the beacon | |
650 | * template is configured (which happens only in the mac80211 | |
651 | * start_ap() flow), and adding the broadcast station can happen | |
652 | * only after the binding. | |
653 | * In addition, since modifying the MAC before adding a bcast | |
654 | * station is not allowed by the FW, delay the adding of MAC context to | |
655 | * the point where we can also add the bcast station. | |
656 | * In short: there's not much we can do at this point, other than | |
657 | * allocating resources :) | |
658 | */ | |
5023d966 JB |
659 | if (vif->type == NL80211_IFTYPE_AP || |
660 | vif->type == NL80211_IFTYPE_ADHOC) { | |
8ca151b5 JB |
661 | u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); |
662 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, | |
663 | qmask); | |
664 | if (ret) { | |
665 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
666 | goto out_release; | |
667 | } | |
668 | ||
77740cb4 | 669 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
670 | goto out_unlock; |
671 | } | |
672 | ||
8ca151b5 JB |
673 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
674 | if (ret) | |
675 | goto out_release; | |
676 | ||
1c2abf72 | 677 | iwl_mvm_power_disable(mvm, vif); |
8ca151b5 | 678 | |
7df15b1e | 679 | /* beacon filtering */ |
bd3351ba EP |
680 | ret = iwl_mvm_disable_beacon_filter(mvm, vif); |
681 | if (ret) | |
682 | goto out_remove_mac; | |
683 | ||
7df15b1e | 684 | if (!mvm->bf_allowed_vif && |
5dca7c24 HG |
685 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p && |
686 | mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){ | |
7df15b1e | 687 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
688 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
689 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
690 | } |
691 | ||
8ca151b5 JB |
692 | /* |
693 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
694 | * so a dedicated PHY context is allocated to it and the corresponding | |
695 | * MAC context is bound to it at this stage. | |
696 | */ | |
697 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 698 | |
fe0f2de3 IP |
699 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
700 | if (!mvmvif->phy_ctxt) { | |
701 | ret = -ENOSPC; | |
bd3351ba | 702 | goto out_free_bf; |
fe0f2de3 | 703 | } |
8ca151b5 | 704 | |
53a9d61e | 705 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
706 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
707 | if (ret) | |
53a9d61e | 708 | goto out_unref_phy; |
8ca151b5 JB |
709 | |
710 | ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
711 | if (ret) | |
712 | goto out_unbind; | |
713 | ||
714 | /* Save a pointer to p2p device vif, so it can later be used to | |
715 | * update the p2p device MAC when a GO is started/stopped */ | |
716 | mvm->p2p_device_vif = vif; | |
717 | } | |
718 | ||
63494374 | 719 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
720 | goto out_unlock; |
721 | ||
722 | out_unbind: | |
723 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 724 | out_unref_phy: |
fe0f2de3 | 725 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
726 | out_free_bf: |
727 | if (mvm->bf_allowed_vif == mvmvif) { | |
728 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
729 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
730 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 731 | } |
8ca151b5 JB |
732 | out_remove_mac: |
733 | mvmvif->phy_ctxt = NULL; | |
734 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
735 | out_release: | |
5ee2b215 AB |
736 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
737 | mvm->vif_count--; | |
1c2abf72 AB |
738 | |
739 | /* TODO: remove this when legacy PM will be discarded */ | |
4bf881f5 AB |
740 | ieee80211_iterate_active_interfaces( |
741 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
742 | iwl_mvm_power_update_iterator, mvm); | |
1c2abf72 | 743 | |
8ca151b5 JB |
744 | iwl_mvm_mac_ctxt_release(mvm, vif); |
745 | out_unlock: | |
746 | mutex_unlock(&mvm->mutex); | |
747 | ||
748 | return ret; | |
749 | } | |
750 | ||
38a12b5b JB |
751 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
752 | struct ieee80211_vif *vif) | |
8ca151b5 | 753 | { |
8ca151b5 JB |
754 | u32 tfd_msk = 0, ac; |
755 | ||
756 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
757 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
758 | tfd_msk |= BIT(vif->hw_queue[ac]); | |
759 | ||
760 | if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
761 | tfd_msk |= BIT(vif->cab_queue); | |
762 | ||
763 | if (tfd_msk) { | |
764 | mutex_lock(&mvm->mutex); | |
765 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
766 | mutex_unlock(&mvm->mutex); | |
767 | } | |
768 | ||
769 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
770 | /* | |
771 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
772 | * We assume here that all the packets sent to the OFFCHANNEL | |
773 | * queue are sent in ROC session. | |
774 | */ | |
775 | flush_work(&mvm->roc_done_wk); | |
776 | } else { | |
777 | /* | |
778 | * By now, all the AC queues are empty. The AGG queues are | |
779 | * empty too. We already got all the Tx responses for all the | |
780 | * packets in the queues. The drain work can have been | |
0742a75a | 781 | * triggered. Flush it. |
8ca151b5 JB |
782 | */ |
783 | flush_work(&mvm->sta_drained_wk); | |
784 | } | |
38a12b5b JB |
785 | } |
786 | ||
787 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
788 | struct ieee80211_vif *vif) | |
789 | { | |
790 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
791 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
792 | ||
793 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
794 | |
795 | mutex_lock(&mvm->mutex); | |
796 | ||
7df15b1e HG |
797 | if (mvm->bf_allowed_vif == mvmvif) { |
798 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
799 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
800 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
801 | } |
802 | ||
63494374 JB |
803 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
804 | ||
8ca151b5 JB |
805 | /* |
806 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 807 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 808 | */ |
5023d966 JB |
809 | if (vif->type == NL80211_IFTYPE_AP || |
810 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
811 | #ifdef CONFIG_NL80211_TESTMODE |
812 | if (vif == mvm->noa_vif) { | |
813 | mvm->noa_vif = NULL; | |
814 | mvm->noa_duration = 0; | |
815 | } | |
816 | #endif | |
8ca151b5 JB |
817 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); |
818 | goto out_release; | |
819 | } | |
820 | ||
821 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
822 | mvm->p2p_device_vif = NULL; | |
823 | iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
824 | iwl_mvm_binding_remove_vif(mvm, vif); | |
fe0f2de3 | 825 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
826 | mvmvif->phy_ctxt = NULL; |
827 | } | |
828 | ||
5ee2b215 | 829 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 830 | mvm->vif_count--; |
1c2abf72 AB |
831 | |
832 | /* TODO: remove this when legacy PM will be discarded */ | |
833 | ieee80211_iterate_active_interfaces( | |
834 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
835 | iwl_mvm_power_update_iterator, mvm); | |
8ca151b5 JB |
836 | |
837 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
838 | ||
839 | out_release: | |
840 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
841 | mutex_unlock(&mvm->mutex); | |
842 | } | |
843 | ||
844 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 845 | { |
8ca151b5 JB |
846 | return 0; |
847 | } | |
848 | ||
e59647ea EP |
849 | struct iwl_mvm_mc_iter_data { |
850 | struct iwl_mvm *mvm; | |
851 | int port_id; | |
852 | }; | |
853 | ||
854 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
855 | struct ieee80211_vif *vif) | |
856 | { | |
857 | struct iwl_mvm_mc_iter_data *data = _data; | |
858 | struct iwl_mvm *mvm = data->mvm; | |
859 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
860 | int ret, len; | |
861 | ||
862 | /* if we don't have free ports, mcast frames will be dropped */ | |
863 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
864 | return; | |
865 | ||
866 | if (vif->type != NL80211_IFTYPE_STATION || | |
867 | !vif->bss_conf.assoc) | |
868 | return; | |
869 | ||
870 | cmd->port_id = data->port_id++; | |
871 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
872 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
873 | ||
874 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd); | |
875 | if (ret) | |
876 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
877 | } | |
878 | ||
879 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
880 | { | |
881 | struct iwl_mvm_mc_iter_data iter_data = { | |
882 | .mvm = mvm, | |
88f2fd73 MG |
883 | }; |
884 | ||
e59647ea EP |
885 | lockdep_assert_held(&mvm->mutex); |
886 | ||
887 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
888 | return; | |
889 | ||
890 | ieee80211_iterate_active_interfaces( | |
891 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
892 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
893 | } |
894 | ||
e59647ea EP |
895 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
896 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 897 | { |
e59647ea EP |
898 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
899 | struct iwl_mcast_filter_cmd *cmd; | |
900 | struct netdev_hw_addr *addr; | |
901 | int addr_count = netdev_hw_addr_list_count(mc_list); | |
902 | bool pass_all = false; | |
903 | int len; | |
904 | ||
905 | if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) { | |
906 | pass_all = true; | |
907 | addr_count = 0; | |
908 | } | |
909 | ||
910 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
911 | cmd = kzalloc(len, GFP_ATOMIC); | |
912 | if (!cmd) | |
913 | return 0; | |
914 | ||
915 | if (pass_all) { | |
916 | cmd->pass_all = 1; | |
917 | return (u64)(unsigned long)cmd; | |
918 | } | |
919 | ||
920 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
921 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
922 | cmd->count, addr->addr); | |
923 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
924 | addr->addr, ETH_ALEN); | |
925 | cmd->count++; | |
926 | } | |
927 | ||
928 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
929 | } |
930 | ||
931 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
932 | unsigned int changed_flags, | |
933 | unsigned int *total_flags, | |
934 | u64 multicast) | |
935 | { | |
e59647ea EP |
936 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
937 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 938 | |
e59647ea | 939 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 940 | |
e59647ea EP |
941 | /* replace previous configuration */ |
942 | kfree(mvm->mcast_filter_cmd); | |
943 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 944 | |
e59647ea EP |
945 | if (!cmd) |
946 | goto out; | |
51b6b9e0 | 947 | |
e59647ea EP |
948 | iwl_mvm_recalc_multicast(mvm); |
949 | out: | |
950 | mutex_unlock(&mvm->mutex); | |
951 | *total_flags = 0; | |
51b6b9e0 EG |
952 | } |
953 | ||
c87163b9 EP |
954 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
955 | struct iwl_bcast_iter_data { | |
956 | struct iwl_mvm *mvm; | |
957 | struct iwl_bcast_filter_cmd *cmd; | |
958 | u8 current_filter; | |
959 | }; | |
960 | ||
961 | static void | |
962 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
963 | const struct iwl_fw_bcast_filter *in_filter, | |
964 | struct iwl_fw_bcast_filter *out_filter) | |
965 | { | |
966 | struct iwl_fw_bcast_filter_attr *attr; | |
967 | int i; | |
968 | ||
969 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
970 | ||
971 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
972 | attr = &out_filter->attrs[i]; | |
973 | ||
974 | if (!attr->mask) | |
975 | break; | |
976 | ||
2ee8f021 EP |
977 | switch (attr->reserved1) { |
978 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
979 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
980 | attr->mask = 0; | |
981 | continue; | |
982 | } | |
983 | ||
984 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
985 | break; | |
986 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
987 | attr->val = *(__be32 *)&vif->addr[2]; | |
988 | break; | |
989 | default: | |
990 | break; | |
991 | } | |
992 | attr->reserved1 = 0; | |
c87163b9 EP |
993 | out_filter->num_attrs++; |
994 | } | |
995 | } | |
996 | ||
997 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
998 | struct ieee80211_vif *vif) | |
999 | { | |
1000 | struct iwl_bcast_iter_data *data = _data; | |
1001 | struct iwl_mvm *mvm = data->mvm; | |
1002 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1003 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1004 | struct iwl_fw_bcast_mac *bcast_mac; | |
1005 | int i; | |
1006 | ||
1007 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1008 | return; | |
1009 | ||
1010 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1011 | ||
1012 | /* enable filtering only for associated stations */ | |
1013 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) | |
1014 | return; | |
1015 | ||
1016 | bcast_mac->default_discard = 1; | |
1017 | ||
1018 | /* copy all configured filters */ | |
1019 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1020 | /* | |
1021 | * Make sure we don't exceed our filters limit. | |
1022 | * if there is still a valid filter to be configured, | |
1023 | * be on the safe side and just allow bcast for this mac. | |
1024 | */ | |
1025 | if (WARN_ON_ONCE(data->current_filter >= | |
1026 | ARRAY_SIZE(cmd->filters))) { | |
1027 | bcast_mac->default_discard = 0; | |
1028 | bcast_mac->attached_filters = 0; | |
1029 | break; | |
1030 | } | |
1031 | ||
1032 | iwl_mvm_set_bcast_filter(vif, | |
1033 | &mvm->bcast_filters[i], | |
1034 | &cmd->filters[data->current_filter]); | |
1035 | ||
1036 | /* skip current filter if it contains no attributes */ | |
1037 | if (!cmd->filters[data->current_filter].num_attrs) | |
1038 | continue; | |
1039 | ||
1040 | /* attach the filter to current mac */ | |
1041 | bcast_mac->attached_filters |= | |
1042 | cpu_to_le16(BIT(data->current_filter)); | |
1043 | ||
1044 | data->current_filter++; | |
1045 | } | |
1046 | } | |
1047 | ||
de06a59e EP |
1048 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1049 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1050 | { |
c87163b9 EP |
1051 | struct iwl_bcast_iter_data iter_data = { |
1052 | .mvm = mvm, | |
de06a59e | 1053 | .cmd = cmd, |
c87163b9 EP |
1054 | }; |
1055 | ||
de06a59e EP |
1056 | memset(cmd, 0, sizeof(*cmd)); |
1057 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1058 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1059 | ||
1060 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1061 | /* use debugfs filters/macs if override is configured */ | |
1062 | if (mvm->dbgfs_bcast_filtering.override) { | |
1063 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1064 | sizeof(cmd->filters)); | |
1065 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1066 | sizeof(cmd->macs)); | |
1067 | return true; | |
1068 | } | |
1069 | #endif | |
c87163b9 EP |
1070 | |
1071 | /* if no filters are configured, do nothing */ | |
1072 | if (!mvm->bcast_filters) | |
de06a59e | 1073 | return false; |
c87163b9 EP |
1074 | |
1075 | /* configure and attach these filters for each associated sta vif */ | |
1076 | ieee80211_iterate_active_interfaces( | |
1077 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1078 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1079 | ||
de06a59e EP |
1080 | return true; |
1081 | } | |
1082 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1083 | struct ieee80211_vif *vif) | |
1084 | { | |
1085 | struct iwl_bcast_filter_cmd cmd; | |
1086 | ||
1087 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1088 | return 0; | |
1089 | ||
1090 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1091 | return 0; | |
1092 | ||
c87163b9 EP |
1093 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC, |
1094 | sizeof(cmd), &cmd); | |
1095 | } | |
1096 | #else | |
1097 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1098 | struct ieee80211_vif *vif) | |
1099 | { | |
1100 | return 0; | |
1101 | } | |
1102 | #endif | |
1103 | ||
8ca151b5 JB |
1104 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1105 | struct ieee80211_vif *vif, | |
1106 | struct ieee80211_bss_conf *bss_conf, | |
1107 | u32 changes) | |
1108 | { | |
1109 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1110 | int ret; | |
1111 | ||
6e97b0d2 IP |
1112 | /* |
1113 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1114 | * beacon interval, which was not known when the station interface was | |
1115 | * added. | |
1116 | */ | |
1117 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1118 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1119 | ||
8ca151b5 JB |
1120 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); |
1121 | if (ret) | |
1122 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1123 | ||
1124 | if (changes & BSS_CHANGED_ASSOC) { | |
1125 | if (bss_conf->assoc) { | |
1126 | /* add quota for this interface */ | |
1127 | ret = iwl_mvm_update_quotas(mvm, vif); | |
1128 | if (ret) { | |
1129 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1130 | return; | |
1131 | } | |
016d27e1 JB |
1132 | |
1133 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1134 | &mvm->status)) { | |
1135 | /* | |
1136 | * If we're restarting then the firmware will | |
1137 | * obviously have lost synchronisation with | |
1138 | * the AP. It will attempt to synchronise by | |
1139 | * itself, but we can make it more reliable by | |
1140 | * scheduling a session protection time event. | |
1141 | * | |
1142 | * The firmware needs to receive a beacon to | |
1143 | * catch up with synchronisation, use 110% of | |
1144 | * the beacon interval. | |
1145 | * | |
1146 | * Set a large maximum delay to allow for more | |
1147 | * than a single interface. | |
1148 | */ | |
1149 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1150 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
1151 | 5 * dur); | |
1152 | } | |
1f3b0ff8 LE |
1153 | |
1154 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1155 | iwl_mvm_power_vif_assoc(mvm, vif); |
8ca151b5 | 1156 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
1157 | /* |
1158 | * If update fails - SF might be running in associated | |
1159 | * mode while disassociated - which is forbidden. | |
1160 | */ | |
1161 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1162 | "Failed to update SF upon disassociation\n"); | |
1163 | ||
8ca151b5 JB |
1164 | /* remove AP station now that the MAC is unassoc */ |
1165 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
1166 | if (ret) | |
1167 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
1168 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
1169 | /* remove quota for this interface */ | |
1170 | ret = iwl_mvm_update_quotas(mvm, NULL); | |
1171 | if (ret) | |
1172 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1173 | } | |
a20fd398 | 1174 | |
e59647ea | 1175 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 1176 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 1177 | |
a20fd398 AO |
1178 | /* reset rssi values */ |
1179 | mvmvif->bf_data.ave_beacon_signal = 0; | |
1180 | ||
e8e626ad AB |
1181 | if (!(mvm->fw->ucode_capa.flags & |
1182 | IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) { | |
e811ada7 AB |
1183 | /* Workaround for FW bug, otherwise FW disables device |
1184 | * power save upon disassociation | |
1185 | */ | |
1186 | ret = iwl_mvm_power_update_mode(mvm, vif); | |
1187 | if (ret) | |
1188 | IWL_ERR(mvm, "failed to update power mode\n"); | |
1189 | } | |
8e484f0b | 1190 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
1191 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
1192 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 1193 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
1194 | /* |
1195 | * We received a beacon _after_ association so | |
1196 | * remove the session protection. | |
1197 | */ | |
1198 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
1199 | &mvmvif->time_event_data); | |
51498cf6 AB |
1200 | } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | |
1201 | BSS_CHANGED_QOS)) { | |
4bf881f5 AB |
1202 | ret = iwl_mvm_power_update_mode(mvm, vif); |
1203 | if (ret) | |
1204 | IWL_ERR(mvm, "failed to update power mode\n"); | |
8ca151b5 | 1205 | } |
88f2fd73 MG |
1206 | if (changes & BSS_CHANGED_TXPOWER) { |
1207 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
1208 | bss_conf->txpower); | |
1209 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
1210 | } | |
a20fd398 AO |
1211 | |
1212 | if (changes & BSS_CHANGED_CQM) { | |
1213 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed"); | |
1214 | /* reset cqm events tracking */ | |
1215 | mvmvif->bf_data.last_cqm_event = 0; | |
1216 | ret = iwl_mvm_update_beacon_filter(mvm, vif); | |
1217 | if (ret) | |
1218 | IWL_ERR(mvm, "failed to update CQM thresholds\n"); | |
1219 | } | |
2ee8f021 EP |
1220 | |
1221 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
1222 | IWL_DEBUG_MAC80211(mvm, "arp filter changed"); | |
1223 | iwl_mvm_configure_bcast_filter(mvm, vif); | |
1224 | } | |
8ca151b5 JB |
1225 | } |
1226 | ||
5023d966 JB |
1227 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
1228 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1229 | { |
1230 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1231 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1232 | int ret; | |
1233 | ||
1234 | mutex_lock(&mvm->mutex); | |
1235 | ||
1236 | /* Send the beacon template */ | |
1237 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
1238 | if (ret) | |
1239 | goto out_unlock; | |
1240 | ||
6e97b0d2 IP |
1241 | /* |
1242 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1243 | * beacon interval, which was not known when the AP interface was added. | |
1244 | */ | |
1245 | if (vif->type == NL80211_IFTYPE_AP) | |
1246 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1247 | ||
8ca151b5 JB |
1248 | /* Add the mac context */ |
1249 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
1250 | if (ret) | |
1251 | goto out_unlock; | |
1252 | ||
1253 | /* Perform the binding */ | |
1254 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1255 | if (ret) | |
1256 | goto out_remove; | |
1257 | ||
5023d966 | 1258 | mvmvif->ap_ibss_active = true; |
8ca151b5 JB |
1259 | |
1260 | /* Send the bcast station. At this stage the TBTT and DTIM time events | |
1261 | * are added and applied to the scheduler */ | |
1262 | ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); | |
1263 | if (ret) | |
1264 | goto out_unbind; | |
1265 | ||
5691e218 IP |
1266 | /* must be set before quota calculations */ |
1267 | mvmvif->ap_ibss_active = true; | |
1268 | ||
a11e144e IP |
1269 | /* power updated needs to be done before quotas */ |
1270 | mvm->bound_vif_cnt++; | |
1271 | iwl_mvm_power_update_binding(mvm, vif, true); | |
1272 | ||
8ca151b5 JB |
1273 | ret = iwl_mvm_update_quotas(mvm, vif); |
1274 | if (ret) | |
a11e144e | 1275 | goto out_quota_failed; |
8ca151b5 | 1276 | |
5023d966 | 1277 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 JB |
1278 | if (vif->p2p && mvm->p2p_device_vif) |
1279 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
1280 | ||
8e484f0b | 1281 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1282 | |
8ca151b5 JB |
1283 | mutex_unlock(&mvm->mutex); |
1284 | return 0; | |
1285 | ||
a11e144e IP |
1286 | out_quota_failed: |
1287 | mvm->bound_vif_cnt--; | |
1288 | iwl_mvm_power_update_binding(mvm, vif, false); | |
5691e218 | 1289 | mvmvif->ap_ibss_active = false; |
8ca151b5 JB |
1290 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); |
1291 | out_unbind: | |
1292 | iwl_mvm_binding_remove_vif(mvm, vif); | |
1293 | out_remove: | |
1294 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1295 | out_unlock: | |
1296 | mutex_unlock(&mvm->mutex); | |
1297 | return ret; | |
1298 | } | |
1299 | ||
5023d966 JB |
1300 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
1301 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
1302 | { |
1303 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1304 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1305 | ||
38a12b5b JB |
1306 | iwl_mvm_prepare_mac_removal(mvm, vif); |
1307 | ||
8ca151b5 JB |
1308 | mutex_lock(&mvm->mutex); |
1309 | ||
5023d966 | 1310 | mvmvif->ap_ibss_active = false; |
8ca151b5 | 1311 | |
8e484f0b | 1312 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 1313 | |
5023d966 | 1314 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 JB |
1315 | if (vif->p2p && mvm->p2p_device_vif) |
1316 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); | |
1317 | ||
1318 | iwl_mvm_update_quotas(mvm, NULL); | |
1319 | iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); | |
1320 | iwl_mvm_binding_remove_vif(mvm, vif); | |
a11e144e IP |
1321 | |
1322 | mvm->bound_vif_cnt--; | |
1323 | iwl_mvm_power_update_binding(mvm, vif, false); | |
1324 | ||
8ca151b5 JB |
1325 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1326 | ||
1327 | mutex_unlock(&mvm->mutex); | |
1328 | } | |
1329 | ||
5023d966 JB |
1330 | static void |
1331 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
1332 | struct ieee80211_vif *vif, | |
1333 | struct ieee80211_bss_conf *bss_conf, | |
1334 | u32 changes) | |
8ca151b5 | 1335 | { |
be2056fc | 1336 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 AA |
1337 | enum ieee80211_bss_change ht_change = BSS_CHANGED_ERP_CTS_PROT | |
1338 | BSS_CHANGED_HT | | |
1339 | BSS_CHANGED_BANDWIDTH; | |
1340 | int ret; | |
1341 | ||
be2056fc IP |
1342 | /* Changes will be applied when the AP/IBSS is started */ |
1343 | if (!mvmvif->ap_ibss_active) | |
1344 | return; | |
1345 | ||
8a5e3660 AA |
1346 | if (changes & ht_change) { |
1347 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
1348 | if (ret) | |
1349 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1350 | } | |
1351 | ||
8ca151b5 JB |
1352 | /* Need to send a new beacon template to the FW */ |
1353 | if (changes & BSS_CHANGED_BEACON) { | |
1354 | if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
1355 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
1360 | struct ieee80211_vif *vif, | |
1361 | struct ieee80211_bss_conf *bss_conf, | |
1362 | u32 changes) | |
1363 | { | |
1364 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1365 | ||
1366 | mutex_lock(&mvm->mutex); | |
1367 | ||
1368 | switch (vif->type) { | |
1369 | case NL80211_IFTYPE_STATION: | |
1370 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
1371 | break; | |
1372 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
1373 | case NL80211_IFTYPE_ADHOC: |
1374 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
1375 | break; |
1376 | default: | |
1377 | /* shouldn't happen */ | |
1378 | WARN_ON_ONCE(1); | |
1379 | } | |
1380 | ||
1381 | mutex_unlock(&mvm->mutex); | |
1382 | } | |
1383 | ||
1384 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
1385 | struct ieee80211_vif *vif, | |
1386 | struct cfg80211_scan_request *req) | |
1387 | { | |
1388 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1389 | int ret; | |
1390 | ||
1391 | if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS) | |
1392 | return -EINVAL; | |
1393 | ||
1394 | mutex_lock(&mvm->mutex); | |
1395 | ||
1396 | if (mvm->scan_status == IWL_MVM_SCAN_NONE) | |
1397 | ret = iwl_mvm_scan_request(mvm, vif, req); | |
1398 | else | |
1399 | ret = -EBUSY; | |
1400 | ||
1401 | mutex_unlock(&mvm->mutex); | |
1402 | ||
1403 | return ret; | |
1404 | } | |
1405 | ||
1406 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
1407 | struct ieee80211_vif *vif) | |
1408 | { | |
1409 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1410 | ||
1411 | mutex_lock(&mvm->mutex); | |
1412 | ||
1413 | iwl_mvm_cancel_scan(mvm); | |
1414 | ||
1415 | mutex_unlock(&mvm->mutex); | |
1416 | } | |
1417 | ||
1418 | static void | |
1419 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 1420 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
1421 | int num_frames, |
1422 | enum ieee80211_frame_release_type reason, | |
1423 | bool more_data) | |
1424 | { | |
1425 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 1426 | |
3e56eadf | 1427 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 1428 | |
3e56eadf JB |
1429 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
1430 | tids, more_data, false); | |
1431 | } | |
1432 | ||
1433 | static void | |
1434 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
1435 | struct ieee80211_sta *sta, u16 tids, | |
1436 | int num_frames, | |
1437 | enum ieee80211_frame_release_type reason, | |
1438 | bool more_data) | |
1439 | { | |
1440 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1441 | ||
1442 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
1443 | ||
1444 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
1445 | tids, more_data, true); | |
8ca151b5 JB |
1446 | } |
1447 | ||
1448 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
1449 | struct ieee80211_vif *vif, | |
1450 | enum sta_notify_cmd cmd, | |
1451 | struct ieee80211_sta *sta) | |
1452 | { | |
1453 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 1454 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3e56eadf | 1455 | int tid; |
8ca151b5 JB |
1456 | |
1457 | switch (cmd) { | |
1458 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 1459 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 1460 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf JB |
1461 | spin_lock_bh(&mvmsta->lock); |
1462 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1463 | struct iwl_mvm_tid_data *tid_data; | |
1464 | ||
1465 | tid_data = &mvmsta->tid_data[tid]; | |
1466 | if (tid_data->state != IWL_AGG_ON && | |
1467 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
1468 | continue; | |
1469 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
1470 | continue; | |
1471 | ieee80211_sta_set_buffered(sta, tid, true); | |
1472 | } | |
1473 | spin_unlock_bh(&mvmsta->lock); | |
8ca151b5 JB |
1474 | /* |
1475 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
1476 | * queues to this station will not be transmitted. The fw will | |
1477 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
1478 | */ | |
1479 | break; | |
1480 | case STA_NOTIFY_AWAKE: | |
881acd89 | 1481 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 1482 | break; |
9cc40712 | 1483 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
1484 | break; |
1485 | default: | |
1486 | break; | |
1487 | } | |
1488 | } | |
1489 | ||
1ddbbb0c JB |
1490 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
1491 | struct ieee80211_vif *vif, | |
1492 | struct ieee80211_sta *sta) | |
1493 | { | |
1494 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1495 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1496 | ||
1497 | /* | |
1498 | * This is called before mac80211 does RCU synchronisation, | |
1499 | * so here we already invalidate our internal RCU-protected | |
1500 | * station pointer. The rest of the code will thus no longer | |
1501 | * be able to find the station this way, and we don't rely | |
1502 | * on further RCU synchronisation after the sta_state() | |
1503 | * callback deleted the station. | |
1504 | */ | |
1505 | mutex_lock(&mvm->mutex); | |
1506 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
1507 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
1508 | ERR_PTR(-ENOENT)); | |
1509 | mutex_unlock(&mvm->mutex); | |
1510 | } | |
1511 | ||
8ca151b5 JB |
1512 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
1513 | struct ieee80211_vif *vif, | |
1514 | struct ieee80211_sta *sta, | |
1515 | enum ieee80211_sta_state old_state, | |
1516 | enum ieee80211_sta_state new_state) | |
1517 | { | |
1518 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1519 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1520 | int ret; | |
1521 | ||
1522 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
1523 | sta->addr, old_state, new_state); | |
1524 | ||
1525 | /* this would be a mac80211 bug ... but don't crash */ | |
1526 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
1527 | return -EINVAL; | |
1528 | ||
1529 | /* if a STA is being removed, reuse its ID */ | |
1530 | flush_work(&mvm->sta_drained_wk); | |
1531 | ||
1532 | mutex_lock(&mvm->mutex); | |
1533 | if (old_state == IEEE80211_STA_NOTEXIST && | |
1534 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
1535 | /* |
1536 | * Firmware bug - it'll crash if the beacon interval is less | |
1537 | * than 16. We can't avoid connecting at all, so refuse the | |
1538 | * station state change, this will cause mac80211 to abandon | |
1539 | * attempts to connect to this AP, and eventually wpa_s will | |
1540 | * blacklist the AP... | |
1541 | */ | |
1542 | if (vif->type == NL80211_IFTYPE_STATION && | |
1543 | vif->bss_conf.beacon_int < 16) { | |
1544 | IWL_ERR(mvm, | |
1545 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
1546 | sta->addr, vif->bss_conf.beacon_int); | |
1547 | ret = -EINVAL; | |
1548 | goto out_unlock; | |
1549 | } | |
8ca151b5 JB |
1550 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1551 | } else if (old_state == IEEE80211_STA_NONE && | |
1552 | new_state == IEEE80211_STA_AUTH) { | |
1553 | ret = 0; | |
1554 | } else if (old_state == IEEE80211_STA_AUTH && | |
1555 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
1556 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
1557 | if (ret == 0) | |
1558 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
1559 | mvmvif->phy_ctxt->channel->band, |
1560 | true); | |
8ca151b5 JB |
1561 | } else if (old_state == IEEE80211_STA_ASSOC && |
1562 | new_state == IEEE80211_STA_AUTHORIZED) { | |
7df15b1e HG |
1563 | /* enable beacon filtering */ |
1564 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1565 | ret = 0; |
1566 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
1567 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e HG |
1568 | /* disable beacon filtering */ |
1569 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif)); | |
8ca151b5 JB |
1570 | ret = 0; |
1571 | } else if (old_state == IEEE80211_STA_ASSOC && | |
1572 | new_state == IEEE80211_STA_AUTH) { | |
1573 | ret = 0; | |
1574 | } else if (old_state == IEEE80211_STA_AUTH && | |
1575 | new_state == IEEE80211_STA_NONE) { | |
1576 | ret = 0; | |
1577 | } else if (old_state == IEEE80211_STA_NONE && | |
1578 | new_state == IEEE80211_STA_NOTEXIST) { | |
1579 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1580 | } else { | |
1581 | ret = -EIO; | |
1582 | } | |
48bc1307 | 1583 | out_unlock: |
8ca151b5 JB |
1584 | mutex_unlock(&mvm->mutex); |
1585 | ||
1586 | return ret; | |
1587 | } | |
1588 | ||
1589 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1590 | { | |
1591 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1592 | ||
1593 | mvm->rts_threshold = value; | |
1594 | ||
1595 | return 0; | |
1596 | } | |
1597 | ||
1f3b0ff8 LE |
1598 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
1599 | struct ieee80211_vif *vif, | |
1600 | struct ieee80211_sta *sta, u32 changed) | |
1601 | { | |
1602 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1603 | ||
1604 | if (vif->type == NL80211_IFTYPE_STATION && | |
1605 | changed & IEEE80211_RC_NSS_CHANGED) | |
1606 | iwl_mvm_sf_update(mvm, vif, false); | |
1607 | } | |
1608 | ||
8ca151b5 JB |
1609 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
1610 | struct ieee80211_vif *vif, u16 ac, | |
1611 | const struct ieee80211_tx_queue_params *params) | |
1612 | { | |
1613 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1614 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1615 | ||
1616 | mvmvif->queue_params[ac] = *params; | |
1617 | ||
1618 | /* | |
1619 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
1620 | * The exception is P2P_DEVICE interface which needs immediate update. | |
1621 | */ | |
1622 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1623 | int ret; | |
1624 | ||
1625 | mutex_lock(&mvm->mutex); | |
1626 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
1627 | mutex_unlock(&mvm->mutex); | |
1628 | return ret; | |
1629 | } | |
1630 | return 0; | |
1631 | } | |
1632 | ||
1633 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
1634 | struct ieee80211_vif *vif) | |
1635 | { | |
1636 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1637 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
1638 | 200 + vif->bss_conf.beacon_int); | |
1639 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
1640 | 100 + vif->bss_conf.beacon_int); | |
1641 | ||
1642 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
1643 | return; | |
1644 | ||
1645 | mutex_lock(&mvm->mutex); | |
1646 | /* Try really hard to protect the session and hear a beacon */ | |
016d27e1 | 1647 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500); |
8ca151b5 JB |
1648 | mutex_unlock(&mvm->mutex); |
1649 | } | |
1650 | ||
35a000b7 DS |
1651 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
1652 | struct ieee80211_vif *vif, | |
1653 | struct cfg80211_sched_scan_request *req, | |
1654 | struct ieee80211_sched_scan_ies *ies) | |
1655 | { | |
1656 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1657 | int ret; | |
1658 | ||
1659 | mutex_lock(&mvm->mutex); | |
1660 | ||
1661 | if (mvm->scan_status != IWL_MVM_SCAN_NONE) { | |
1662 | IWL_DEBUG_SCAN(mvm, | |
1663 | "SCHED SCAN request during internal scan - abort\n"); | |
1664 | ret = -EBUSY; | |
1665 | goto out; | |
1666 | } | |
1667 | ||
1668 | mvm->scan_status = IWL_MVM_SCAN_SCHED; | |
1669 | ||
1670 | ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies); | |
1671 | if (ret) | |
1672 | goto err; | |
1673 | ||
1674 | ret = iwl_mvm_config_sched_scan_profiles(mvm, req); | |
1675 | if (ret) | |
1676 | goto err; | |
1677 | ||
1678 | ret = iwl_mvm_sched_scan_start(mvm, req); | |
1679 | if (!ret) | |
1680 | goto out; | |
1681 | err: | |
1682 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
1683 | out: | |
1684 | mutex_unlock(&mvm->mutex); | |
1685 | return ret; | |
1686 | } | |
1687 | ||
1688 | static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, | |
1689 | struct ieee80211_vif *vif) | |
1690 | { | |
1691 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1692 | ||
1693 | mutex_lock(&mvm->mutex); | |
1694 | iwl_mvm_sched_scan_stop(mvm); | |
1695 | mutex_unlock(&mvm->mutex); | |
1696 | } | |
1697 | ||
8ca151b5 JB |
1698 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
1699 | enum set_key_cmd cmd, | |
1700 | struct ieee80211_vif *vif, | |
1701 | struct ieee80211_sta *sta, | |
1702 | struct ieee80211_key_conf *key) | |
1703 | { | |
1704 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1705 | int ret; | |
1706 | ||
1707 | if (iwlwifi_mod_params.sw_crypto) { | |
1708 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
1709 | return -EOPNOTSUPP; | |
1710 | } | |
1711 | ||
1712 | switch (key->cipher) { | |
1713 | case WLAN_CIPHER_SUITE_TKIP: | |
1714 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1715 | /* fall-through */ | |
1716 | case WLAN_CIPHER_SUITE_CCMP: | |
1717 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
1718 | break; | |
1719 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
1720 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
1721 | break; | |
1722 | case WLAN_CIPHER_SUITE_WEP40: | |
1723 | case WLAN_CIPHER_SUITE_WEP104: | |
1724 | /* | |
1725 | * Support for TX only, at least for now, so accept | |
1726 | * the key and do nothing else. Then mac80211 will | |
1727 | * pass it for TX but we don't have to use it for RX. | |
1728 | */ | |
1729 | return 0; | |
1730 | default: | |
e36e5433 MS |
1731 | /* currently FW supports only one optional cipher scheme */ |
1732 | if (hw->n_cipher_schemes && | |
1733 | hw->cipher_schemes->cipher == key->cipher) | |
1734 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
1735 | else | |
1736 | return -EOPNOTSUPP; | |
8ca151b5 JB |
1737 | } |
1738 | ||
1739 | mutex_lock(&mvm->mutex); | |
1740 | ||
1741 | switch (cmd) { | |
1742 | case SET_KEY: | |
5023d966 JB |
1743 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
1744 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
1745 | /* | |
1746 | * GTK on AP interface is a TX-only key, return 0; | |
1747 | * on IBSS they're per-station and because we're lazy | |
1748 | * we don't support them for RX, so do the same. | |
1749 | */ | |
6caffd4f JB |
1750 | ret = 0; |
1751 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
1752 | break; | |
1753 | } | |
1754 | ||
8ca151b5 JB |
1755 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
1756 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
1757 | if (ret) { | |
1758 | IWL_WARN(mvm, "set key failed\n"); | |
1759 | /* | |
1760 | * can't add key for RX, but we don't need it | |
1761 | * in the device for TX so still return 0 | |
1762 | */ | |
6caffd4f | 1763 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
1764 | ret = 0; |
1765 | } | |
1766 | ||
1767 | break; | |
1768 | case DISABLE_KEY: | |
6caffd4f JB |
1769 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
1770 | ret = 0; | |
1771 | break; | |
1772 | } | |
1773 | ||
8ca151b5 JB |
1774 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
1775 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
1776 | break; | |
1777 | default: | |
1778 | ret = -EINVAL; | |
1779 | } | |
1780 | ||
1781 | mutex_unlock(&mvm->mutex); | |
1782 | return ret; | |
1783 | } | |
1784 | ||
1785 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
1786 | struct ieee80211_vif *vif, | |
1787 | struct ieee80211_key_conf *keyconf, | |
1788 | struct ieee80211_sta *sta, | |
1789 | u32 iv32, u16 *phase1key) | |
1790 | { | |
1791 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1792 | ||
5023d966 JB |
1793 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
1794 | return; | |
1795 | ||
8ca151b5 JB |
1796 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
1797 | } | |
1798 | ||
1799 | ||
1800 | static int iwl_mvm_roc(struct ieee80211_hw *hw, | |
1801 | struct ieee80211_vif *vif, | |
1802 | struct ieee80211_channel *channel, | |
d339d5ca IP |
1803 | int duration, |
1804 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
1805 | { |
1806 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 1807 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 1808 | struct cfg80211_chan_def chandef; |
31d385ae IP |
1809 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
1810 | int ret, i; | |
1811 | ||
1812 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
1813 | duration, type); | |
8ca151b5 JB |
1814 | |
1815 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { | |
1816 | IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); | |
1817 | return -EINVAL; | |
1818 | } | |
1819 | ||
8ca151b5 JB |
1820 | mutex_lock(&mvm->mutex); |
1821 | ||
31d385ae IP |
1822 | for (i = 0; i < NUM_PHY_CTX; i++) { |
1823 | phy_ctxt = &mvm->phy_ctxts[i]; | |
1824 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
1825 | continue; | |
1826 | ||
1827 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
1828 | /* | |
1829 | * Unbind the P2P_DEVICE from the current PHY context, | |
1830 | * and if the PHY context is not used remove it. | |
1831 | */ | |
1832 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1833 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1834 | goto out_unlock; | |
1835 | ||
1836 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1837 | ||
1838 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
1839 | mvmvif->phy_ctxt = phy_ctxt; | |
1840 | ||
1841 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1842 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1843 | goto out_unlock; | |
1844 | ||
1845 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1846 | goto schedule_time_event; | |
1847 | } | |
1848 | } | |
1849 | ||
1850 | /* Need to update the PHY context only if the ROC channel changed */ | |
1851 | if (channel == mvmvif->phy_ctxt->channel) | |
1852 | goto schedule_time_event; | |
1853 | ||
8ca151b5 | 1854 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 1855 | |
31d385ae IP |
1856 | /* |
1857 | * Change the PHY context configuration as it is currently referenced | |
1858 | * only by the P2P Device MAC | |
1859 | */ | |
1860 | if (mvmvif->phy_ctxt->ref == 1) { | |
1861 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
1862 | &chandef, 1, 1); | |
1863 | if (ret) | |
1864 | goto out_unlock; | |
1865 | } else { | |
1866 | /* | |
1867 | * The PHY context is shared with other MACs. Need to remove the | |
1868 | * P2P Device from the binding, allocate an new PHY context and | |
1869 | * create a new binding | |
1870 | */ | |
1871 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
1872 | if (!phy_ctxt) { | |
1873 | ret = -ENOSPC; | |
1874 | goto out_unlock; | |
1875 | } | |
1876 | ||
1877 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
1878 | 1, 1); | |
1879 | if (ret) { | |
1880 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
1881 | goto out_unlock; | |
1882 | } | |
1883 | ||
1884 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
1885 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
1886 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
1887 | goto out_unlock; | |
1888 | ||
1889 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
1890 | ||
1891 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
1892 | mvmvif->phy_ctxt = phy_ctxt; | |
1893 | ||
1894 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
1895 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
1896 | goto out_unlock; | |
1897 | ||
1898 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
1899 | } | |
1900 | ||
1901 | schedule_time_event: | |
8ca151b5 | 1902 | /* Schedule the time events */ |
e635c797 | 1903 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 1904 | |
31d385ae | 1905 | out_unlock: |
8ca151b5 JB |
1906 | mutex_unlock(&mvm->mutex); |
1907 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
1908 | return ret; |
1909 | } | |
1910 | ||
1911 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
1912 | { | |
1913 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1914 | ||
1915 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
1916 | ||
1917 | mutex_lock(&mvm->mutex); | |
1918 | iwl_mvm_stop_p2p_roc(mvm); | |
1919 | mutex_unlock(&mvm->mutex); | |
1920 | ||
1921 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
1922 | return 0; | |
1923 | } | |
1924 | ||
1925 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
1926 | struct ieee80211_chanctx_conf *ctx) | |
1927 | { | |
1928 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1929 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1930 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
1931 | int ret; |
1932 | ||
53a9d61e | 1933 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 1934 | |
8ca151b5 | 1935 | mutex_lock(&mvm->mutex); |
fe0f2de3 IP |
1936 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1937 | if (!phy_ctxt) { | |
1938 | ret = -ENOSPC; | |
1939 | goto out; | |
1940 | } | |
8ca151b5 | 1941 | |
dcbc3e1a | 1942 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
1943 | ctx->rx_chains_static, |
1944 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
1945 | if (ret) { |
1946 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
1947 | goto out; | |
1948 | } | |
1949 | ||
53a9d61e | 1950 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
1951 | *phy_ctxt_id = phy_ctxt->id; |
1952 | out: | |
8ca151b5 JB |
1953 | mutex_unlock(&mvm->mutex); |
1954 | return ret; | |
1955 | } | |
1956 | ||
1957 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, | |
1958 | struct ieee80211_chanctx_conf *ctx) | |
1959 | { | |
1960 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1961 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1962 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
1963 | |
1964 | mutex_lock(&mvm->mutex); | |
fe0f2de3 | 1965 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); |
8ca151b5 JB |
1966 | mutex_unlock(&mvm->mutex); |
1967 | } | |
1968 | ||
1969 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
1970 | struct ieee80211_chanctx_conf *ctx, | |
1971 | u32 changed) | |
1972 | { | |
1973 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1974 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
1975 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 1976 | |
31d385ae IP |
1977 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
1978 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
1979 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
1980 | IEEE80211_CHANCTX_CHANGE_RADAR | |
1981 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
1982 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
1983 | phy_ctxt->ref, changed)) | |
1984 | return; | |
1985 | ||
8ca151b5 | 1986 | mutex_lock(&mvm->mutex); |
dcbc3e1a | 1987 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
1988 | ctx->rx_chains_static, |
1989 | ctx->rx_chains_dynamic); | |
8e484f0b | 1990 | iwl_mvm_bt_coex_vif_change(mvm); |
8ca151b5 JB |
1991 | mutex_unlock(&mvm->mutex); |
1992 | } | |
1993 | ||
1994 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, | |
1995 | struct ieee80211_vif *vif, | |
1996 | struct ieee80211_chanctx_conf *ctx) | |
1997 | { | |
1998 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
1999 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
2000 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
2001 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
2002 | int ret; | |
2003 | ||
2004 | mutex_lock(&mvm->mutex); | |
2005 | ||
fe0f2de3 | 2006 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
2007 | |
2008 | switch (vif->type) { | |
2009 | case NL80211_IFTYPE_AP: | |
5023d966 | 2010 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
2011 | /* |
2012 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 2013 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
2014 | */ |
2015 | ret = 0; | |
2016 | goto out_unlock; | |
2017 | case NL80211_IFTYPE_STATION: | |
8ca151b5 JB |
2018 | case NL80211_IFTYPE_MONITOR: |
2019 | break; | |
2020 | default: | |
2021 | ret = -EINVAL; | |
2022 | goto out_unlock; | |
2023 | } | |
2024 | ||
2025 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2026 | if (ret) | |
2027 | goto out_unlock; | |
2028 | ||
2029 | /* | |
92d85562 AB |
2030 | * Power state must be updated before quotas, |
2031 | * otherwise fw will complain. | |
2032 | */ | |
2033 | mvm->bound_vif_cnt++; | |
2034 | iwl_mvm_power_update_binding(mvm, vif, true); | |
2035 | ||
2036 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
2037 | * interfaces. For the other types, the bss_info changed flow |
2038 | * will handle quota settings. | |
2039 | */ | |
2040 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 2041 | mvmvif->monitor_active = true; |
8ca151b5 JB |
2042 | ret = iwl_mvm_update_quotas(mvm, vif); |
2043 | if (ret) | |
2044 | goto out_remove_binding; | |
2045 | } | |
2046 | ||
2047 | goto out_unlock; | |
2048 | ||
2049 | out_remove_binding: | |
2050 | iwl_mvm_binding_remove_vif(mvm, vif); | |
92d85562 AB |
2051 | mvm->bound_vif_cnt--; |
2052 | iwl_mvm_power_update_binding(mvm, vif, false); | |
8ca151b5 JB |
2053 | out_unlock: |
2054 | mutex_unlock(&mvm->mutex); | |
2055 | if (ret) | |
2056 | mvmvif->phy_ctxt = NULL; | |
2057 | return ret; | |
2058 | } | |
2059 | ||
2060 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
2061 | struct ieee80211_vif *vif, | |
2062 | struct ieee80211_chanctx_conf *ctx) | |
2063 | { | |
2064 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2065 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2066 | ||
2067 | mutex_lock(&mvm->mutex); | |
2068 | ||
2069 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
2070 | ||
8ca151b5 | 2071 | switch (vif->type) { |
5023d966 JB |
2072 | case NL80211_IFTYPE_AP: |
2073 | case NL80211_IFTYPE_ADHOC: | |
2074 | goto out_unlock; | |
8ca151b5 | 2075 | case NL80211_IFTYPE_MONITOR: |
1e1391ca IP |
2076 | mvmvif->monitor_active = false; |
2077 | iwl_mvm_update_quotas(mvm, NULL); | |
8ca151b5 JB |
2078 | break; |
2079 | default: | |
2080 | break; | |
2081 | } | |
2082 | ||
1e1391ca | 2083 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 2084 | mvm->bound_vif_cnt--; |
92d85562 | 2085 | iwl_mvm_power_update_binding(mvm, vif, false); |
1c2abf72 | 2086 | |
a11e144e IP |
2087 | out_unlock: |
2088 | mvmvif->phy_ctxt = NULL; | |
8ca151b5 JB |
2089 | mutex_unlock(&mvm->mutex); |
2090 | } | |
2091 | ||
2092 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, | |
2093 | struct ieee80211_sta *sta, | |
2094 | bool set) | |
2095 | { | |
2096 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2097 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
2098 | ||
2099 | if (!mvm_sta || !mvm_sta->vif) { | |
2100 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
2101 | return -EINVAL; | |
2102 | } | |
2103 | ||
2104 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
2105 | } | |
2106 | ||
507cadf2 DS |
2107 | #ifdef CONFIG_NL80211_TESTMODE |
2108 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
2109 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
2110 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 2111 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
2112 | }; |
2113 | ||
2114 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
2115 | struct ieee80211_vif *vif, | |
2116 | void *data, int len) | |
2117 | { | |
2118 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
2119 | int err; | |
2120 | u32 noa_duration; | |
2121 | ||
2122 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
2123 | if (err) | |
2124 | return err; | |
2125 | ||
2126 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
2127 | return -EINVAL; | |
2128 | ||
2129 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
2130 | case IWL_MVM_TM_CMD_SET_NOA: | |
2131 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
2132 | !vif->bss_conf.enable_beacon || | |
2133 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
2134 | return -EINVAL; | |
2135 | ||
2136 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
2137 | if (noa_duration >= vif->bss_conf.beacon_int) | |
2138 | return -EINVAL; | |
2139 | ||
2140 | mvm->noa_duration = noa_duration; | |
2141 | mvm->noa_vif = vif; | |
2142 | ||
2143 | return iwl_mvm_update_quotas(mvm, NULL); | |
f6c6ad42 JB |
2144 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
2145 | /* must be associated client vif - ignore authorized */ | |
2146 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
2147 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
2148 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
2149 | return -EINVAL; | |
2150 | ||
2151 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
2152 | return iwl_mvm_enable_beacon_filter(mvm, vif); | |
2153 | return iwl_mvm_disable_beacon_filter(mvm, vif); | |
507cadf2 DS |
2154 | } |
2155 | ||
2156 | return -EOPNOTSUPP; | |
2157 | } | |
2158 | ||
2159 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
2160 | struct ieee80211_vif *vif, | |
2161 | void *data, int len) | |
2162 | { | |
2163 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2164 | int err; | |
2165 | ||
2166 | mutex_lock(&mvm->mutex); | |
2167 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
2168 | mutex_unlock(&mvm->mutex); | |
2169 | ||
2170 | return err; | |
2171 | } | |
2172 | #endif | |
2173 | ||
8ca151b5 JB |
2174 | struct ieee80211_ops iwl_mvm_hw_ops = { |
2175 | .tx = iwl_mvm_mac_tx, | |
2176 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
2177 | .start = iwl_mvm_mac_start, | |
2178 | .restart_complete = iwl_mvm_mac_restart_complete, | |
2179 | .stop = iwl_mvm_mac_stop, | |
2180 | .add_interface = iwl_mvm_mac_add_interface, | |
2181 | .remove_interface = iwl_mvm_mac_remove_interface, | |
2182 | .config = iwl_mvm_mac_config, | |
e59647ea | 2183 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
2184 | .configure_filter = iwl_mvm_configure_filter, |
2185 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
2186 | .hw_scan = iwl_mvm_mac_hw_scan, | |
2187 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 2188 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
2189 | .sta_state = iwl_mvm_mac_sta_state, |
2190 | .sta_notify = iwl_mvm_mac_sta_notify, | |
2191 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 2192 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 2193 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 2194 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
2195 | .conf_tx = iwl_mvm_mac_conf_tx, |
2196 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
35a000b7 DS |
2197 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
2198 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
2199 | .set_key = iwl_mvm_mac_set_key, |
2200 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
2201 | .remain_on_channel = iwl_mvm_roc, | |
2202 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
2203 | .add_chanctx = iwl_mvm_add_chanctx, |
2204 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
2205 | .change_chanctx = iwl_mvm_change_chanctx, | |
2206 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
2207 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
2208 | ||
5023d966 JB |
2209 | .start_ap = iwl_mvm_start_ap_ibss, |
2210 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
2211 | .join_ibss = iwl_mvm_start_ap_ibss, | |
2212 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
2213 | |
2214 | .set_tim = iwl_mvm_set_tim, | |
2215 | ||
507cadf2 DS |
2216 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
2217 | ||
8ca151b5 JB |
2218 | #ifdef CONFIG_PM_SLEEP |
2219 | /* look at d3.c */ | |
2220 | .suspend = iwl_mvm_suspend, | |
2221 | .resume = iwl_mvm_resume, | |
2222 | .set_wakeup = iwl_mvm_set_wakeup, | |
2223 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
2224 | #if IS_ENABLED(CONFIG_IPV6) | |
2225 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
2226 | #endif | |
2227 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
2228 | #endif | |
2229 | }; |