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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. |
8b4139dc | 9 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
f92659a1 | 10 | * Copyright(c) 2016 Intel Deutschland GmbH |
8ca151b5 JB |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of version 2 of the GNU General Public License as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | * General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
24 | * USA | |
25 | * | |
26 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 27 | * in the file called COPYING. |
8ca151b5 JB |
28 | * |
29 | * Contact Information: | |
cb2f8277 | 30 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
31 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
32 | * | |
33 | * BSD LICENSE | |
34 | * | |
51368bf7 | 35 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8b4139dc | 36 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
8ca151b5 JB |
37 | * All rights reserved. |
38 | * | |
39 | * Redistribution and use in source and binary forms, with or without | |
40 | * modification, are permitted provided that the following conditions | |
41 | * are met: | |
42 | * | |
43 | * * Redistributions of source code must retain the above copyright | |
44 | * notice, this list of conditions and the following disclaimer. | |
45 | * * Redistributions in binary form must reproduce the above copyright | |
46 | * notice, this list of conditions and the following disclaimer in | |
47 | * the documentation and/or other materials provided with the | |
48 | * distribution. | |
49 | * * Neither the name Intel Corporation nor the names of its | |
50 | * contributors may be used to endorse or promote products derived | |
51 | * from this software without specific prior written permission. | |
52 | * | |
53 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
54 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
55 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
56 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
57 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
58 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
59 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
60 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
61 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
62 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
63 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
64 | * | |
65 | *****************************************************************************/ | |
66 | #include <linux/kernel.h> | |
67 | #include <linux/slab.h> | |
68 | #include <linux/skbuff.h> | |
69 | #include <linux/netdevice.h> | |
70 | #include <linux/etherdevice.h> | |
f0c2646a | 71 | #include <linux/ip.h> |
2ee8f021 | 72 | #include <linux/if_arp.h> |
2f89a5d7 | 73 | #include <linux/time.h> |
8ca151b5 | 74 | #include <net/mac80211.h> |
7b1dd048 | 75 | #include <net/ieee80211_radiotap.h> |
f0c2646a | 76 | #include <net/tcp.h> |
8ca151b5 JB |
77 | |
78 | #include "iwl-op-mode.h" | |
79 | #include "iwl-io.h" | |
80 | #include "mvm.h" | |
81 | #include "sta.h" | |
82 | #include "time-event.h" | |
83 | #include "iwl-eeprom-parse.h" | |
8ca151b5 | 84 | #include "iwl-phy-db.h" |
507cadf2 | 85 | #include "testmode.h" |
655e6d6d EG |
86 | #include "iwl-fw-error-dump.h" |
87 | #include "iwl-prph.h" | |
88931cc9 | 88 | #include "iwl-nvm-parse.h" |
2f89a5d7 | 89 | #include "fw-dbg.h" |
8ca151b5 JB |
90 | |
91 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
92 | { | |
93 | .max = 1, | |
8eb38710 | 94 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 95 | }, |
3c15a0fb JB |
96 | { |
97 | .max = 1, | |
8eb38710 IP |
98 | .types = BIT(NL80211_IFTYPE_AP) | |
99 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
100 | BIT(NL80211_IFTYPE_P2P_GO), |
101 | }, | |
102 | { | |
103 | .max = 1, | |
104 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
105 | }, | |
8ca151b5 JB |
106 | }; |
107 | ||
108 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
109 | { | |
2624a5ca | 110 | .num_different_channels = 2, |
8ca151b5 JB |
111 | .max_interfaces = 3, |
112 | .limits = iwl_mvm_limits, | |
113 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
114 | }, | |
115 | }; | |
116 | ||
f0c2646a JB |
117 | #ifdef CONFIG_PM_SLEEP |
118 | static const struct nl80211_wowlan_tcp_data_token_feature | |
119 | iwl_mvm_wowlan_tcp_token_feature = { | |
120 | .min_len = 0, | |
121 | .max_len = 255, | |
122 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
123 | }; | |
124 | ||
125 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
126 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
127 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
128 | sizeof(struct ethhdr) - | |
129 | sizeof(struct iphdr) - | |
130 | sizeof(struct tcphdr), | |
131 | .data_interval_max = 65535, /* __le16 in API */ | |
132 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
133 | sizeof(struct ethhdr) - | |
134 | sizeof(struct iphdr) - | |
135 | sizeof(struct tcphdr), | |
136 | .seq = true, | |
137 | }; | |
138 | #endif | |
139 | ||
77736923 | 140 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
141 | /* |
142 | * Use the reserved field to indicate magic values. | |
143 | * these values will only be used internally by the driver, | |
144 | * and won't make it to the fw (reserved will be 0). | |
145 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
146 | * be the vif's ip address. in case there is not a single | |
147 | * ip address (0, or more than 1), this attribute will | |
148 | * be skipped. | |
149 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
150 | * the LSB bytes of the vif's mac address | |
151 | */ | |
152 | enum { | |
153 | BC_FILTER_MAGIC_NONE = 0, | |
154 | BC_FILTER_MAGIC_IP, | |
155 | BC_FILTER_MAGIC_MAC, | |
156 | }; | |
157 | ||
77736923 EP |
158 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
159 | { | |
160 | /* arp */ | |
161 | .discard = 0, | |
162 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
163 | .attrs = { | |
164 | { | |
165 | /* frame type - arp, hw type - ethernet */ | |
166 | .offset_type = | |
167 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
168 | .offset = sizeof(rfc1042_header), | |
169 | .val = cpu_to_be32(0x08060001), | |
170 | .mask = cpu_to_be32(0xffffffff), | |
171 | }, | |
2ee8f021 EP |
172 | { |
173 | /* arp dest ip */ | |
174 | .offset_type = | |
175 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
176 | .offset = sizeof(rfc1042_header) + 2 + | |
177 | sizeof(struct arphdr) + | |
178 | ETH_ALEN + sizeof(__be32) + | |
179 | ETH_ALEN, | |
180 | .mask = cpu_to_be32(0xffffffff), | |
181 | /* mark it as special field */ | |
182 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
183 | }, | |
184 | }, | |
185 | }, | |
186 | { | |
187 | /* dhcp offer bcast */ | |
188 | .discard = 0, | |
189 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
190 | .attrs = { | |
191 | { | |
192 | /* udp dest port - 68 (bootp client)*/ | |
193 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
194 | .offset = offsetof(struct udphdr, dest), | |
195 | .val = cpu_to_be32(0x00440000), | |
196 | .mask = cpu_to_be32(0xffff0000), | |
197 | }, | |
198 | { | |
199 | /* dhcp - lsb bytes of client hw address */ | |
200 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
201 | .offset = 38, | |
202 | .mask = cpu_to_be32(0xffffffff), | |
203 | /* mark it as special field */ | |
204 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
205 | }, | |
77736923 EP |
206 | }, |
207 | }, | |
208 | /* last filter must be empty */ | |
209 | {}, | |
210 | }; | |
211 | #endif | |
212 | ||
7498cf4c EP |
213 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
214 | { | |
7bb426ea | 215 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
216 | return; |
217 | ||
218 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
219 | spin_lock_bh(&mvm->refs_lock); |
220 | mvm->refs[ref_type]++; | |
221 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
222 | iwl_trans_ref(mvm->trans); |
223 | } | |
224 | ||
225 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
226 | { | |
7bb426ea | 227 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
228 | return; |
229 | ||
230 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
576eeee9 | 231 | spin_lock_bh(&mvm->refs_lock); |
16c45822 SS |
232 | if (WARN_ON(!mvm->refs[ref_type])) { |
233 | spin_unlock_bh(&mvm->refs_lock); | |
234 | return; | |
235 | } | |
236 | mvm->refs[ref_type]--; | |
576eeee9 | 237 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
238 | iwl_trans_unref(mvm->trans); |
239 | } | |
240 | ||
576eeee9 EP |
241 | static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
242 | enum iwl_mvm_ref_type except_ref) | |
7498cf4c | 243 | { |
576eeee9 | 244 | int i, j; |
7498cf4c | 245 | |
7bb426ea | 246 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
247 | return; |
248 | ||
576eeee9 EP |
249 | spin_lock_bh(&mvm->refs_lock); |
250 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
251 | if (except_ref == i || !mvm->refs[i]) | |
7498cf4c EP |
252 | continue; |
253 | ||
576eeee9 EP |
254 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
255 | i, mvm->refs[i]); | |
256 | for (j = 0; j < mvm->refs[i]; j++) | |
257 | iwl_trans_unref(mvm->trans); | |
258 | mvm->refs[i] = 0; | |
7498cf4c | 259 | } |
576eeee9 | 260 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
261 | } |
262 | ||
f4cf8680 EP |
263 | bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) |
264 | { | |
265 | int i; | |
266 | bool taken = false; | |
267 | ||
268 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
269 | return true; | |
270 | ||
271 | spin_lock_bh(&mvm->refs_lock); | |
272 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
273 | if (mvm->refs[i]) { | |
274 | taken = true; | |
275 | break; | |
276 | } | |
277 | } | |
278 | spin_unlock_bh(&mvm->refs_lock); | |
279 | ||
280 | return taken; | |
281 | } | |
282 | ||
576eeee9 | 283 | int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
d40fc489 GG |
284 | { |
285 | iwl_mvm_ref(mvm, ref_type); | |
286 | ||
287 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
288 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), | |
289 | HZ)) { | |
290 | WARN_ON_ONCE(1); | |
291 | iwl_mvm_unref(mvm, ref_type); | |
292 | return -EIO; | |
293 | } | |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
fe0f2de3 IP |
298 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
299 | { | |
300 | int i; | |
301 | ||
302 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
303 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
304 | mvm->phy_ctxts[i].id = i; | |
305 | mvm->phy_ctxts[i].ref = 0; | |
306 | } | |
307 | } | |
308 | ||
88931cc9 | 309 | struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, |
8ba2d7a1 | 310 | const char *alpha2, |
47c8b154 JD |
311 | enum iwl_mcc_source src_id, |
312 | bool *changed) | |
88931cc9 AN |
313 | { |
314 | struct ieee80211_regdomain *regd = NULL; | |
315 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
316 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
317 | struct iwl_mcc_update_resp *resp; | |
318 | ||
319 | IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); | |
320 | ||
8ba2d7a1 | 321 | lockdep_assert_held(&mvm->mutex); |
88931cc9 | 322 | |
8ba2d7a1 | 323 | resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); |
88931cc9 AN |
324 | if (IS_ERR_OR_NULL(resp)) { |
325 | IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", | |
b8c474d9 | 326 | PTR_ERR_OR_ZERO(resp)); |
8ba2d7a1 | 327 | goto out; |
88931cc9 AN |
328 | } |
329 | ||
47c8b154 JD |
330 | if (changed) |
331 | *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); | |
332 | ||
162ee3c9 | 333 | regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, |
88931cc9 AN |
334 | __le32_to_cpu(resp->n_channels), |
335 | resp->channels, | |
336 | __le16_to_cpu(resp->mcc)); | |
8ba2d7a1 EH |
337 | /* Store the return source id */ |
338 | src_id = resp->source_id; | |
88931cc9 AN |
339 | kfree(resp); |
340 | if (IS_ERR_OR_NULL(regd)) { | |
341 | IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", | |
b8c474d9 | 342 | PTR_ERR_OR_ZERO(regd)); |
8ba2d7a1 | 343 | goto out; |
88931cc9 AN |
344 | } |
345 | ||
8ba2d7a1 EH |
346 | IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", |
347 | regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); | |
88931cc9 | 348 | mvm->lar_regdom_set = true; |
8ba2d7a1 | 349 | mvm->mcc_src = src_id; |
88931cc9 | 350 | |
8ba2d7a1 | 351 | out: |
88931cc9 AN |
352 | return regd; |
353 | } | |
354 | ||
47c8b154 JD |
355 | void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) |
356 | { | |
357 | bool changed; | |
358 | struct ieee80211_regdomain *regd; | |
359 | ||
360 | if (!iwl_mvm_is_lar_supported(mvm)) | |
361 | return; | |
362 | ||
363 | regd = iwl_mvm_get_current_regdomain(mvm, &changed); | |
364 | if (!IS_ERR_OR_NULL(regd)) { | |
365 | /* only update the regulatory core if changed */ | |
366 | if (changed) | |
367 | regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); | |
368 | ||
369 | kfree(regd); | |
370 | } | |
371 | } | |
372 | ||
373 | struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, | |
374 | bool *changed) | |
8ba2d7a1 EH |
375 | { |
376 | return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", | |
377 | iwl_mvm_is_wifi_mcc_supported(mvm) ? | |
378 | MCC_SOURCE_GET_CURRENT : | |
47c8b154 | 379 | MCC_SOURCE_OLD_FW, changed); |
8ba2d7a1 EH |
380 | } |
381 | ||
382 | int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) | |
383 | { | |
384 | enum iwl_mcc_source used_src; | |
385 | struct ieee80211_regdomain *regd; | |
b6e160ab AN |
386 | int ret; |
387 | bool changed; | |
8ba2d7a1 EH |
388 | const struct ieee80211_regdomain *r = |
389 | rtnl_dereference(mvm->hw->wiphy->regd); | |
390 | ||
391 | if (!r) | |
b6e160ab | 392 | return -ENOENT; |
8ba2d7a1 EH |
393 | |
394 | /* save the last source in case we overwrite it below */ | |
395 | used_src = mvm->mcc_src; | |
396 | if (iwl_mvm_is_wifi_mcc_supported(mvm)) { | |
397 | /* Notify the firmware we support wifi location updates */ | |
47c8b154 | 398 | regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
8ba2d7a1 EH |
399 | if (!IS_ERR_OR_NULL(regd)) |
400 | kfree(regd); | |
401 | } | |
402 | ||
403 | /* Now set our last stored MCC and source */ | |
b6e160ab AN |
404 | regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, |
405 | &changed); | |
8ba2d7a1 EH |
406 | if (IS_ERR_OR_NULL(regd)) |
407 | return -EIO; | |
408 | ||
b6e160ab AN |
409 | /* update cfg80211 if the regdomain was changed */ |
410 | if (changed) | |
411 | ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); | |
412 | else | |
413 | ret = 0; | |
8ba2d7a1 | 414 | |
b6e160ab AN |
415 | kfree(regd); |
416 | return ret; | |
8ba2d7a1 EH |
417 | } |
418 | ||
8ca151b5 JB |
419 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
420 | { | |
421 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 422 | int num_mac, ret, i; |
5f4c02e2 JB |
423 | static const u32 mvm_ciphers[] = { |
424 | WLAN_CIPHER_SUITE_WEP40, | |
425 | WLAN_CIPHER_SUITE_WEP104, | |
426 | WLAN_CIPHER_SUITE_TKIP, | |
427 | WLAN_CIPHER_SUITE_CCMP, | |
428 | }; | |
8ca151b5 JB |
429 | |
430 | /* Tell mac80211 our characteristics */ | |
30686bf7 JB |
431 | ieee80211_hw_set(hw, SIGNAL_DBM); |
432 | ieee80211_hw_set(hw, SPECTRUM_MGMT); | |
433 | ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); | |
434 | ieee80211_hw_set(hw, QUEUE_CONTROL); | |
435 | ieee80211_hw_set(hw, WANT_MONITOR_VIF); | |
436 | ieee80211_hw_set(hw, SUPPORTS_PS); | |
437 | ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); | |
438 | ieee80211_hw_set(hw, AMPDU_AGGREGATION); | |
439 | ieee80211_hw_set(hw, TIMING_BEACON_ONLY); | |
440 | ieee80211_hw_set(hw, CONNECTION_MONITOR); | |
441 | ieee80211_hw_set(hw, CHANCTX_STA_CSA); | |
442 | ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); | |
443 | ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); | |
909ddf0b | 444 | ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); |
30433d3b | 445 | ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); |
b915c101 SS |
446 | if (iwl_mvm_has_new_rx_api(mvm)) |
447 | ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); | |
8ca151b5 | 448 | |
80938abc JB |
449 | if (mvm->trans->num_rx_queues > 1) |
450 | ieee80211_hw_set(hw, USES_RSS); | |
451 | ||
2d7cf549 JB |
452 | if (mvm->trans->max_skb_frags) |
453 | hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; | |
454 | ||
cf961e16 LK |
455 | if (!iwl_mvm_is_dqa_supported(mvm)) |
456 | hw->queues = mvm->first_agg_queue; | |
457 | else | |
458 | hw->queues = IEEE80211_MAX_QUEUES; | |
398e8c6c | 459 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
460 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
461 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
339b3086 ES |
462 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
463 | IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; | |
8ca151b5 | 464 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
848955cc JB |
465 | hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
466 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 | 467 | |
2a53d166 | 468 | BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 4); |
5f4c02e2 JB |
469 | memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); |
470 | hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); | |
471 | hw->wiphy->cipher_suites = mvm->ciphers; | |
472 | ||
2a53d166 AB |
473 | if (iwl_mvm_has_new_rx_api(mvm)) { |
474 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
475 | WLAN_CIPHER_SUITE_GCMP; | |
476 | hw->wiphy->n_cipher_suites++; | |
477 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
478 | WLAN_CIPHER_SUITE_GCMP_256; | |
479 | hw->wiphy->n_cipher_suites++; | |
480 | } | |
481 | ||
8ca151b5 JB |
482 | /* |
483 | * Enable 11w if advertised by firmware and software crypto | |
484 | * is not enabled (as the firmware will interpret some mgmt | |
485 | * packets, so enabling it with software crypto isn't safe) | |
486 | */ | |
487 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
5f4c02e2 | 488 | !iwlwifi_mod_params.sw_crypto) { |
30686bf7 | 489 | ieee80211_hw_set(hw, MFP_CAPABLE); |
5f4c02e2 JB |
490 | mvm->ciphers[hw->wiphy->n_cipher_suites] = |
491 | WLAN_CIPHER_SUITE_AES_CMAC; | |
492 | hw->wiphy->n_cipher_suites++; | |
493 | } | |
494 | ||
495 | /* currently FW API supports only one optional cipher scheme */ | |
496 | if (mvm->fw->cs[0].cipher) { | |
24ddddf3 JB |
497 | const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; |
498 | struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; | |
499 | ||
5f4c02e2 | 500 | mvm->hw->n_cipher_schemes = 1; |
24ddddf3 JB |
501 | |
502 | cs->cipher = le32_to_cpu(fwcs->cipher); | |
503 | cs->iftype = BIT(NL80211_IFTYPE_STATION); | |
504 | cs->hdr_len = fwcs->hdr_len; | |
505 | cs->pn_len = fwcs->pn_len; | |
506 | cs->pn_off = fwcs->pn_off; | |
507 | cs->key_idx_off = fwcs->key_idx_off; | |
508 | cs->key_idx_mask = fwcs->key_idx_mask; | |
509 | cs->key_idx_shift = fwcs->key_idx_shift; | |
510 | cs->mic_len = fwcs->mic_len; | |
511 | ||
512 | mvm->hw->cipher_schemes = mvm->cs; | |
513 | mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; | |
5f4c02e2 JB |
514 | hw->wiphy->n_cipher_suites++; |
515 | } | |
8ca151b5 | 516 | |
30686bf7 | 517 | ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); |
1f940386 LC |
518 | hw->wiphy->features |= |
519 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
3db93420 JB |
520 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | |
521 | NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
fb98be5e | 522 | |
8ca151b5 JB |
523 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
524 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 525 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
526 | |
527 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
528 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
529 | BIT(NL80211_IFTYPE_AP) | | |
530 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
531 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
532 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 533 | |
a2f73b6c | 534 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
535 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
536 | if (iwl_mvm_is_lar_supported(mvm)) | |
537 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
538 | else | |
539 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
540 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 541 | |
3e56eadf JB |
542 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
543 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
544 | ||
94bbed72 | 545 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 546 | |
8ca151b5 JB |
547 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
548 | hw->wiphy->n_iface_combinations = | |
549 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
550 | ||
c451e6d4 | 551 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 552 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
553 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
554 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
555 | |
556 | /* Extract MAC address */ | |
557 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
558 | hw->wiphy->addresses = mvm->addresses; | |
559 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
560 | |
561 | /* Extract additional MAC addresses if available */ | |
562 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
563 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
564 | ||
565 | for (i = 1; i < num_mac; i++) { | |
566 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 567 | ETH_ALEN); |
831e85f3 | 568 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
569 | hw->wiphy->n_addresses++; |
570 | } | |
571 | ||
fe0f2de3 IP |
572 | iwl_mvm_reset_phy_ctxts(mvm); |
573 | ||
999d2568 | 574 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
20f1a5de | 575 | |
8ca151b5 JB |
576 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
577 | ||
c7d42480 | 578 | BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); |
507e4cda LC |
579 | BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || |
580 | IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); | |
581 | ||
859d914c | 582 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
507e4cda LC |
583 | mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; |
584 | else | |
585 | mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; | |
586 | ||
57fbcce3 JB |
587 | if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) |
588 | hw->wiphy->bands[NL80211_BAND_2GHZ] = | |
589 | &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; | |
590 | if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { | |
591 | hw->wiphy->bands[NL80211_BAND_5GHZ] = | |
592 | &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; | |
8ca151b5 | 593 | |
859d914c JB |
594 | if (fw_has_capa(&mvm->fw->ucode_capa, |
595 | IWL_UCODE_TLV_CAPA_BEAMFORMER) && | |
596 | fw_has_api(&mvm->fw->ucode_capa, | |
597 | IWL_UCODE_TLV_API_LQ_SS_PARAMS)) | |
57fbcce3 | 598 | hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= |
3d44eebf ES |
599 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; |
600 | } | |
601 | ||
8ca151b5 JB |
602 | hw->wiphy->hw_version = mvm->trans->hw_id; |
603 | ||
ade50652 | 604 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
605 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
606 | else | |
607 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
608 | ||
9954b37c EG |
609 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
610 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
611 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
612 | /* we create the 802.11 header and zero length SSID IE. */ | |
613 | hw->wiphy->max_sched_scan_ie_len = | |
614 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
cd55ccea AS |
615 | hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; |
616 | hw->wiphy->max_sched_scan_plan_interval = U16_MAX; | |
617 | ||
618 | /* | |
619 | * the firmware uses u8 for num of iterations, but 0xff is saved for | |
620 | * infinite loop, so the maximum number of iterations is actually 254. | |
621 | */ | |
622 | hw->wiphy->max_sched_scan_plan_iterations = 254; | |
35a000b7 | 623 | |
8ca151b5 | 624 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 625 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 EP |
626 | NL80211_FEATURE_P2P_GO_OPPPS | |
627 | NL80211_FEATURE_DYNAMIC_SMPS | | |
9b5452fd EG |
628 | NL80211_FEATURE_STATIC_SMPS | |
629 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 630 | |
859d914c JB |
631 | if (fw_has_capa(&mvm->fw->ucode_capa, |
632 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) | |
f1daa00e | 633 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; |
859d914c JB |
634 | if (fw_has_capa(&mvm->fw->ucode_capa, |
635 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) | |
226bcd48 | 636 | hw->wiphy->features |= NL80211_FEATURE_QUIET; |
f1daa00e | 637 | |
859d914c JB |
638 | if (fw_has_capa(&mvm->fw->ucode_capa, |
639 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) | |
73897bd1 AO |
640 | hw->wiphy->features |= |
641 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
642 | ||
859d914c JB |
643 | if (fw_has_capa(&mvm->fw->ucode_capa, |
644 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) | |
73897bd1 AO |
645 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; |
646 | ||
8ca151b5 JB |
647 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
648 | ||
649 | #ifdef CONFIG_PM_SLEEP | |
d15a747f EP |
650 | if (iwl_mvm_is_d0i3_supported(mvm) && |
651 | device_can_wakeup(mvm->trans->dev)) { | |
652 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
653 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
654 | } |
655 | ||
656 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
657 | mvm->trans->ops->d3_suspend && |
658 | mvm->trans->ops->d3_resume && | |
659 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
660 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
661 | WIPHY_WOWLAN_DISCONNECT | | |
662 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
663 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
664 | WIPHY_WOWLAN_NET_DETECT; | |
8ca151b5 | 665 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
666 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
667 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
668 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
669 | ||
670 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
671 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
672 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 673 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 JB |
674 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
675 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
676 | } |
677 | #endif | |
678 | ||
77736923 EP |
679 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
680 | /* assign default bcast filtering configuration */ | |
681 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
682 | #endif | |
683 | ||
8ca151b5 JB |
684 | ret = iwl_mvm_leds_init(mvm); |
685 | if (ret) | |
686 | return ret; | |
687 | ||
859d914c JB |
688 | if (fw_has_capa(&mvm->fw->ucode_capa, |
689 | IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { | |
d8f1c515 AN |
690 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); |
691 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
7c4f0843 | 692 | ieee80211_hw_set(hw, TDLS_WIDER_BW); |
d8f1c515 AN |
693 | } |
694 | ||
859d914c JB |
695 | if (fw_has_capa(&mvm->fw->ucode_capa, |
696 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { | |
1d3c3f63 AN |
697 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); |
698 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
699 | } | |
700 | ||
93190fb0 | 701 | hw->netdev_features |= mvm->cfg->features; |
5e6a98dc SS |
702 | if (!iwl_mvm_is_csum_supported(mvm)) { |
703 | hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | | |
704 | NETIF_F_RXCSUM); | |
705 | /* We may support SW TX CSUM */ | |
706 | if (IWL_MVM_SW_TX_CSUM_OFFLOAD) | |
707 | hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; | |
708 | } | |
41837ca9 | 709 | |
b7327d89 EG |
710 | ret = ieee80211_register_hw(mvm->hw); |
711 | if (ret) | |
712 | iwl_mvm_leds_exit(mvm); | |
713 | ||
714 | return ret; | |
8ca151b5 JB |
715 | } |
716 | ||
b2492501 AN |
717 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
718 | struct ieee80211_sta *sta, | |
719 | struct sk_buff *skb) | |
720 | { | |
721 | struct iwl_mvm_sta *mvmsta; | |
722 | bool defer = false; | |
723 | ||
724 | /* | |
725 | * double check the IN_D0I3 flag both before and after | |
726 | * taking the spinlock, in order to prevent taking | |
727 | * the spinlock when not needed. | |
728 | */ | |
729 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
730 | return false; | |
731 | ||
732 | spin_lock(&mvm->d0i3_tx_lock); | |
733 | /* | |
734 | * testing the flag again ensures the skb dequeue | |
735 | * loop (on d0i3 exit) hasn't run yet. | |
736 | */ | |
737 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
738 | goto out; | |
739 | ||
740 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
741 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
742 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
743 | goto out; | |
744 | ||
745 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
746 | ieee80211_stop_queues(mvm->hw); | |
747 | ||
748 | /* trigger wakeup */ | |
749 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
750 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
751 | ||
752 | defer = true; | |
753 | out: | |
754 | spin_unlock(&mvm->d0i3_tx_lock); | |
755 | return defer; | |
756 | } | |
757 | ||
8ca151b5 JB |
758 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
759 | struct ieee80211_tx_control *control, | |
760 | struct sk_buff *skb) | |
761 | { | |
762 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
763 | struct ieee80211_sta *sta = control->sta; |
764 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
765 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 766 | |
9ee718aa EL |
767 | if (iwl_mvm_is_radio_killed(mvm)) { |
768 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
769 | goto drop; |
770 | } | |
771 | ||
398e8c6c | 772 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
773 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
774 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
775 | goto drop; |
776 | ||
3e56eadf JB |
777 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
778 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
779 | ieee80211_is_mgmt(hdr->frame_control) && | |
780 | !ieee80211_is_deauth(hdr->frame_control) && | |
781 | !ieee80211_is_disassoc(hdr->frame_control) && | |
782 | !ieee80211_is_action(hdr->frame_control))) | |
783 | sta = NULL; | |
784 | ||
785 | if (sta) { | |
b2492501 AN |
786 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
787 | return; | |
3e56eadf | 788 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
789 | goto drop; |
790 | return; | |
791 | } | |
792 | ||
793 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
794 | goto drop; | |
795 | return; | |
796 | drop: | |
797 | ieee80211_free_txskb(hw, skb); | |
798 | } | |
799 | ||
205e2210 EG |
800 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
801 | { | |
802 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
803 | return false; | |
804 | return true; | |
805 | } | |
806 | ||
807 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
808 | { | |
809 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
810 | return false; | |
811 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
812 | return true; | |
813 | ||
814 | /* enabled by default */ | |
815 | return true; | |
816 | } | |
817 | ||
4203263d EG |
818 | #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ |
819 | do { \ | |
820 | if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ | |
821 | break; \ | |
822 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ | |
823 | } while (0) | |
824 | ||
825 | static void | |
826 | iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
827 | struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, | |
828 | enum ieee80211_ampdu_mlme_action action) | |
829 | { | |
830 | struct iwl_fw_dbg_trigger_tlv *trig; | |
831 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
832 | ||
833 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
834 | return; | |
835 | ||
836 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
837 | ba_trig = (void *)trig->data; | |
838 | ||
839 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
840 | return; | |
841 | ||
842 | switch (action) { | |
843 | case IEEE80211_AMPDU_TX_OPERATIONAL: { | |
844 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
845 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
846 | ||
847 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, | |
848 | "TX AGG START: MAC %pM tid %d ssn %d\n", | |
849 | sta->addr, tid, tid_data->ssn); | |
850 | break; | |
851 | } | |
852 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
853 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, | |
854 | "TX AGG STOP: MAC %pM tid %d\n", | |
855 | sta->addr, tid); | |
856 | break; | |
857 | case IEEE80211_AMPDU_RX_START: | |
858 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, | |
859 | "RX AGG START: MAC %pM tid %d ssn %d\n", | |
860 | sta->addr, tid, rx_ba_ssn); | |
861 | break; | |
862 | case IEEE80211_AMPDU_RX_STOP: | |
863 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, | |
864 | "RX AGG STOP: MAC %pM tid %d\n", | |
865 | sta->addr, tid); | |
866 | break; | |
867 | default: | |
868 | break; | |
869 | } | |
870 | } | |
871 | ||
8ca151b5 JB |
872 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
873 | struct ieee80211_vif *vif, | |
50ea05ef | 874 | struct ieee80211_ampdu_params *params) |
8ca151b5 JB |
875 | { |
876 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
877 | int ret; | |
b2492501 | 878 | bool tx_agg_ref = false; |
50ea05ef SS |
879 | struct ieee80211_sta *sta = params->sta; |
880 | enum ieee80211_ampdu_mlme_action action = params->action; | |
881 | u16 tid = params->tid; | |
882 | u16 *ssn = ¶ms->ssn; | |
883 | u8 buf_size = params->buf_size; | |
bb81bb68 | 884 | bool amsdu = params->amsdu; |
10b2b201 | 885 | u16 timeout = params->timeout; |
8ca151b5 JB |
886 | |
887 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
888 | sta->addr, tid, action); | |
889 | ||
890 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
891 | return -EACCES; | |
892 | ||
b2492501 | 893 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
894 | switch (action) { |
895 | case IEEE80211_AMPDU_TX_START: | |
896 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
897 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
898 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
899 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 900 | /* |
9256c205 EP |
901 | * for tx start, wait synchronously until D0i3 exit to |
902 | * get the correct sequence number for the tid. | |
903 | * additionally, some other ampdu actions use direct | |
904 | * target access, which is not handled automatically | |
905 | * by the trans layer (unlike commands), so wait for | |
906 | * d0i3 exit in these cases as well. | |
b2492501 | 907 | */ |
d40fc489 GG |
908 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
909 | if (ret) | |
910 | return ret; | |
911 | ||
912 | tx_agg_ref = true; | |
9256c205 EP |
913 | break; |
914 | default: | |
915 | break; | |
b2492501 AN |
916 | } |
917 | ||
8ca151b5 JB |
918 | mutex_lock(&mvm->mutex); |
919 | ||
920 | switch (action) { | |
921 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 922 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
923 | ret = -EINVAL; |
924 | break; | |
925 | } | |
10b2b201 SS |
926 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, |
927 | timeout); | |
8ca151b5 JB |
928 | break; |
929 | case IEEE80211_AMPDU_RX_STOP: | |
10b2b201 SS |
930 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, |
931 | timeout); | |
8ca151b5 JB |
932 | break; |
933 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 934 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
935 | ret = -EINVAL; |
936 | break; | |
937 | } | |
8ca151b5 JB |
938 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
939 | break; | |
940 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
941 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
942 | break; | |
8ca151b5 JB |
943 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
944 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 945 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
946 | break; |
947 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
bb81bb68 EG |
948 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, |
949 | buf_size, amsdu); | |
8ca151b5 JB |
950 | break; |
951 | default: | |
952 | WARN_ON_ONCE(1); | |
953 | ret = -EINVAL; | |
954 | break; | |
955 | } | |
4203263d EG |
956 | |
957 | if (!ret) { | |
958 | u16 rx_ba_ssn = 0; | |
959 | ||
960 | if (action == IEEE80211_AMPDU_RX_START) | |
961 | rx_ba_ssn = *ssn; | |
962 | ||
963 | iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, | |
964 | rx_ba_ssn, action); | |
965 | } | |
8ca151b5 JB |
966 | mutex_unlock(&mvm->mutex); |
967 | ||
b2492501 AN |
968 | /* |
969 | * If the tid is marked as started, we won't use it for offloaded | |
970 | * traffic on the next D0i3 entry. It's safe to unref. | |
971 | */ | |
972 | if (tx_agg_ref) | |
973 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
974 | ||
8ca151b5 JB |
975 | return ret; |
976 | } | |
977 | ||
978 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
979 | struct ieee80211_vif *vif) | |
980 | { | |
981 | struct iwl_mvm *mvm = data; | |
982 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
983 | ||
984 | mvmvif->uploaded = false; | |
985 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
986 | ||
8ca151b5 JB |
987 | spin_lock_bh(&mvm->time_event_lock); |
988 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
989 | spin_unlock_bh(&mvm->time_event_lock); | |
990 | ||
fe0f2de3 | 991 | mvmvif->phy_ctxt = NULL; |
8a275bad | 992 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
993 | } |
994 | ||
995 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
996 | { | |
58629d9d JB |
997 | /* clear the D3 reconfig, we only need it to avoid dumping a |
998 | * firmware coredump on reconfiguration, we shouldn't do that | |
999 | * on D3->D0 transition | |
1000 | */ | |
b6eaa45a EG |
1001 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
1002 | mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; | |
58629d9d | 1003 | iwl_mvm_fw_error_dump(mvm); |
b6eaa45a | 1004 | } |
1bd3cbc1 | 1005 | |
744cb695 EP |
1006 | /* cleanup all stale references (scan, roc), but keep the |
1007 | * ucode_down ref until reconfig is complete | |
1008 | */ | |
1009 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1010 | ||
fcb6b92a | 1011 | iwl_mvm_stop_device(mvm); |
8ca151b5 | 1012 | |
9af91f46 | 1013 | mvm->scan_status = 0; |
b1873300 | 1014 | mvm->ps_disabled = false; |
31b8b343 | 1015 | mvm->calibrating = false; |
8ca151b5 JB |
1016 | |
1017 | /* just in case one was running */ | |
305d236e | 1018 | iwl_mvm_cleanup_roc_te(mvm); |
8ca151b5 JB |
1019 | ieee80211_remain_on_channel_expired(mvm->hw); |
1020 | ||
737719fe AN |
1021 | /* |
1022 | * cleanup all interfaces, even inactive ones, as some might have | |
1023 | * gone down during the HW restart | |
1024 | */ | |
1025 | ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); | |
8ca151b5 | 1026 | |
fe0f2de3 | 1027 | mvm->p2p_device_vif = NULL; |
37577fe2 | 1028 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
1029 | |
1030 | iwl_mvm_reset_phy_ctxts(mvm); | |
9c3deeb5 | 1031 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
8ca151b5 | 1032 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); |
24afba76 | 1033 | memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames)); |
a0f6bf2a | 1034 | memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
8a275bad | 1035 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
8a275bad | 1036 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); |
8ca151b5 JB |
1037 | |
1038 | ieee80211_wake_queues(mvm->hw); | |
1039 | ||
228670b2 EP |
1040 | /* clear any stale d0i3 state */ |
1041 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1042 | ||
8ca151b5 | 1043 | mvm->vif_count = 0; |
113a0447 | 1044 | mvm->rx_ba_sessions = 0; |
d2709ad7 | 1045 | mvm->fw_dbg_conf = FW_DBG_INVALID; |
91a8bcde JB |
1046 | |
1047 | /* keep statistics ticking */ | |
1048 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1049 | } |
1050 | ||
a0a09243 | 1051 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1052 | { |
8ca151b5 JB |
1053 | int ret; |
1054 | ||
a0a09243 | 1055 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 1056 | |
a42b2af3 LC |
1057 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { |
1058 | /* Clean up some internal and mac80211 state on restart */ | |
8ca151b5 | 1059 | iwl_mvm_restart_cleanup(mvm); |
a42b2af3 LC |
1060 | } else { |
1061 | /* Hold the reference to prevent runtime suspend while | |
1062 | * the start procedure runs. It's a bit confusing | |
1063 | * that the UCODE_DOWN reference is taken, but it just | |
1064 | * means "UCODE is not UP yet". ( TODO: rename this | |
1065 | * reference). | |
1066 | */ | |
1067 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1068 | } | |
8ca151b5 | 1069 | ret = iwl_mvm_up(mvm); |
c47af22a JB |
1070 | |
1071 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1072 | /* Something went wrong - we need to finish some cleanup | |
1073 | * that normally iwl_mvm_mac_restart_complete() below | |
1074 | * would do. | |
1075 | */ | |
1076 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1077 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1078 | } | |
1079 | ||
a0a09243 LC |
1080 | return ret; |
1081 | } | |
1082 | ||
1083 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1084 | { | |
1085 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1086 | int ret; | |
1087 | ||
37948fcf EP |
1088 | /* Some hw restart cleanups must not hold the mutex */ |
1089 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1090 | /* | |
1091 | * Make sure we are out of d0i3. This is needed | |
1092 | * to make sure the reference accounting is correct | |
1093 | * (and there is no stale d0i3_exit_work). | |
1094 | */ | |
1095 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1096 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1097 | &mvm->status), | |
1098 | HZ); | |
1099 | } | |
1100 | ||
a0a09243 LC |
1101 | mutex_lock(&mvm->mutex); |
1102 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1103 | mutex_unlock(&mvm->mutex); |
1104 | ||
1105 | return ret; | |
1106 | } | |
1107 | ||
cf2c92d8 | 1108 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1109 | { |
8ca151b5 JB |
1110 | int ret; |
1111 | ||
1112 | mutex_lock(&mvm->mutex); | |
1113 | ||
1114 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1115 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
e7afe89f | 1116 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1117 | if (ret) |
1118 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1119 | ret); | |
1120 | ||
7498cf4c EP |
1121 | /* allow transport/FW low power modes */ |
1122 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1123 | ||
cbd2ae2d AN |
1124 | /* |
1125 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1126 | * of packets the FW sent out, so we must reconnect. | |
1127 | */ | |
1128 | iwl_mvm_teardown_tdls_peers(mvm); | |
1129 | ||
8ca151b5 JB |
1130 | mutex_unlock(&mvm->mutex); |
1131 | } | |
1132 | ||
088070a2 EP |
1133 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1134 | { | |
b7282643 LC |
1135 | if (iwl_mvm_is_d0i3_supported(mvm) && |
1136 | iwl_mvm_enter_d0i3_on_suspend(mvm)) | |
1137 | WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1138 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1139 | &mvm->status), | |
1140 | HZ), | |
1141 | "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1142 | } |
1143 | ||
cf2c92d8 EP |
1144 | static void |
1145 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1146 | enum ieee80211_reconfig_type reconfig_type) | |
1147 | { | |
1148 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1149 | ||
1150 | switch (reconfig_type) { | |
1151 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1152 | iwl_mvm_restart_complete(mvm); | |
1153 | break; | |
1154 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1155 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1156 | break; |
1157 | } | |
1158 | } | |
1159 | ||
a0a09243 | 1160 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1161 | { |
a0a09243 | 1162 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1163 | |
91a8bcde JB |
1164 | /* firmware counters are obviously reset now, but we shouldn't |
1165 | * partially track so also clear the fw_reset_accu counters. | |
1166 | */ | |
1167 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1168 | ||
8ca151b5 JB |
1169 | /* async_handlers_wk is now blocked */ |
1170 | ||
1171 | /* | |
1172 | * The work item could be running or queued if the | |
1173 | * ROC time event stops just as we get here. | |
1174 | */ | |
c779273b | 1175 | flush_work(&mvm->roc_done_wk); |
8ca151b5 | 1176 | |
fcb6b92a | 1177 | iwl_mvm_stop_device(mvm); |
8ca151b5 JB |
1178 | |
1179 | iwl_mvm_async_handlers_purge(mvm); | |
1180 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1181 | ||
1182 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1183 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1184 | |
7fdf9663 MG |
1185 | iwl_free_fw_paging(mvm); |
1186 | ||
0a79a0c0 EP |
1187 | /* |
1188 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1189 | * won't be called in this case). | |
8b2b9fbf AN |
1190 | * But make sure to cleanup interfaces that have gone down before/during |
1191 | * HW restart was requested. | |
0a79a0c0 | 1192 | */ |
8b2b9fbf AN |
1193 | if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
1194 | ieee80211_iterate_interfaces(mvm->hw, 0, | |
1195 | iwl_mvm_cleanup_iterator, mvm); | |
0a79a0c0 | 1196 | |
963221be AB |
1197 | /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
1198 | * make sure there's nothing left there and warn if any is found. | |
1199 | */ | |
859d914c | 1200 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
963221be AB |
1201 | int i; |
1202 | ||
507e4cda | 1203 | for (i = 0; i < mvm->max_scans; i++) { |
6185af2a LC |
1204 | if (WARN_ONCE(mvm->scan_uid_status[i], |
1205 | "UMAC scan UID %d status was not cleaned\n", | |
1206 | i)) | |
1207 | mvm->scan_uid_status[i] = 0; | |
963221be AB |
1208 | } |
1209 | } | |
a0a09243 | 1210 | } |
bc44886d | 1211 | |
a0a09243 LC |
1212 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1213 | { | |
1214 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1215 | ||
1216 | flush_work(&mvm->d0i3_exit_work); | |
1217 | flush_work(&mvm->async_handlers_wk); | |
24afba76 | 1218 | flush_work(&mvm->add_stream_wk); |
d2709ad7 | 1219 | cancel_delayed_work_sync(&mvm->fw_dump_wk); |
d3a108a4 | 1220 | cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); |
69e04642 | 1221 | cancel_delayed_work_sync(&mvm->scan_timeout_dwork); |
b6eaa45a | 1222 | iwl_mvm_free_fw_dump_desc(mvm); |
a0a09243 LC |
1223 | |
1224 | mutex_lock(&mvm->mutex); | |
1225 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1226 | mutex_unlock(&mvm->mutex); |
1227 | ||
1228 | /* | |
1229 | * The worker might have been waiting for the mutex, let it run and | |
1230 | * discover that its list is now empty. | |
1231 | */ | |
1232 | cancel_work_sync(&mvm->async_handlers_wk); | |
1233 | } | |
1234 | ||
fe0f2de3 IP |
1235 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1236 | { | |
1237 | u16 i; | |
1238 | ||
1239 | lockdep_assert_held(&mvm->mutex); | |
1240 | ||
1241 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1242 | if (!mvm->phy_ctxts[i].ref) | |
1243 | return &mvm->phy_ctxts[i]; | |
1244 | ||
1245 | IWL_ERR(mvm, "No available PHY context\n"); | |
1246 | return NULL; | |
1247 | } | |
1248 | ||
d44c3fe6 AA |
1249 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1250 | s16 tx_power) | |
1251 | { | |
1252 | struct iwl_dev_tx_power_cmd cmd = { | |
da03f029 JB |
1253 | .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), |
1254 | .v2.mac_context_id = | |
d44c3fe6 | 1255 | cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), |
da03f029 | 1256 | .v2.pwr_restriction = cpu_to_le16(8 * tx_power), |
d44c3fe6 | 1257 | }; |
da03f029 | 1258 | int len = sizeof(cmd); |
d44c3fe6 | 1259 | |
d44c3fe6 | 1260 | if (tx_power == IWL_DEFAULT_MAX_TX_POWER) |
da03f029 | 1261 | cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); |
d44c3fe6 | 1262 | |
da03f029 JB |
1263 | if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN)) |
1264 | len = sizeof(cmd.v2); | |
1265 | ||
1266 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); | |
d44c3fe6 AA |
1267 | } |
1268 | ||
8ca151b5 JB |
1269 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1270 | struct ieee80211_vif *vif) | |
1271 | { | |
1272 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1273 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1274 | int ret; | |
1275 | ||
aa5e1832 EG |
1276 | mvmvif->mvm = mvm; |
1277 | ||
d40fc489 GG |
1278 | /* |
1279 | * make sure D0i3 exit is completed, otherwise a target access | |
1280 | * during tx queue configuration could be done when still in | |
1281 | * D0i3 state. | |
1282 | */ | |
1283 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1284 | if (ret) | |
1285 | return ret; | |
1286 | ||
8ca151b5 JB |
1287 | /* |
1288 | * Not much to do here. The stack will not allow interface | |
1289 | * types or combinations that we didn't advertise, so we | |
1290 | * don't really have to check the types. | |
1291 | */ | |
1292 | ||
1293 | mutex_lock(&mvm->mutex); | |
1294 | ||
33cef925 JB |
1295 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1296 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1297 | mvmvif->beacon_stats.accu_num_beacons += | |
1298 | mvmvif->beacon_stats.num_beacons; | |
1299 | ||
e89044d7 | 1300 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1301 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1302 | if (ret) | |
1303 | goto out_unlock; | |
1304 | ||
1c2abf72 | 1305 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1306 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1307 | mvm->vif_count++; | |
ea183d02 | 1308 | |
8ca151b5 JB |
1309 | /* |
1310 | * The AP binding flow can be done only after the beacon | |
1311 | * template is configured (which happens only in the mac80211 | |
1312 | * start_ap() flow), and adding the broadcast station can happen | |
1313 | * only after the binding. | |
1314 | * In addition, since modifying the MAC before adding a bcast | |
1315 | * station is not allowed by the FW, delay the adding of MAC context to | |
1316 | * the point where we can also add the bcast station. | |
1317 | * In short: there's not much we can do at this point, other than | |
1318 | * allocating resources :) | |
1319 | */ | |
5023d966 JB |
1320 | if (vif->type == NL80211_IFTYPE_AP || |
1321 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1322 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1323 | if (ret) { |
1324 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1325 | goto out_release; | |
1326 | } | |
1327 | ||
77740cb4 | 1328 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1329 | goto out_unlock; |
1330 | } | |
1331 | ||
93190fb0 AA |
1332 | mvmvif->features |= hw->netdev_features; |
1333 | ||
8ca151b5 JB |
1334 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1335 | if (ret) | |
1336 | goto out_release; | |
1337 | ||
999609f1 | 1338 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1339 | if (ret) |
fd66fc1c | 1340 | goto out_remove_mac; |
8ca151b5 | 1341 | |
7df15b1e | 1342 | /* beacon filtering */ |
a1022927 | 1343 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1344 | if (ret) |
1345 | goto out_remove_mac; | |
1346 | ||
7df15b1e | 1347 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1348 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1349 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1350 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1351 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1352 | } |
1353 | ||
8ca151b5 JB |
1354 | /* |
1355 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1356 | * so a dedicated PHY context is allocated to it and the corresponding | |
1357 | * MAC context is bound to it at this stage. | |
1358 | */ | |
1359 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1360 | |
fe0f2de3 IP |
1361 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1362 | if (!mvmvif->phy_ctxt) { | |
1363 | ret = -ENOSPC; | |
bd3351ba | 1364 | goto out_free_bf; |
fe0f2de3 | 1365 | } |
8ca151b5 | 1366 | |
53a9d61e | 1367 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1368 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1369 | if (ret) | |
53a9d61e | 1370 | goto out_unref_phy; |
8ca151b5 | 1371 | |
013290aa | 1372 | ret = iwl_mvm_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
1373 | if (ret) |
1374 | goto out_unbind; | |
1375 | ||
1376 | /* Save a pointer to p2p device vif, so it can later be used to | |
1377 | * update the p2p device MAC when a GO is started/stopped */ | |
1378 | mvm->p2p_device_vif = vif; | |
1379 | } | |
1380 | ||
63494374 | 1381 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1382 | goto out_unlock; |
1383 | ||
1384 | out_unbind: | |
1385 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1386 | out_unref_phy: |
fe0f2de3 | 1387 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1388 | out_free_bf: |
1389 | if (mvm->bf_allowed_vif == mvmvif) { | |
1390 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1391 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1392 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1393 | } |
8ca151b5 JB |
1394 | out_remove_mac: |
1395 | mvmvif->phy_ctxt = NULL; | |
1396 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1397 | out_release: | |
5ee2b215 AB |
1398 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1399 | mvm->vif_count--; | |
1c2abf72 | 1400 | |
8ca151b5 JB |
1401 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1402 | out_unlock: | |
1403 | mutex_unlock(&mvm->mutex); | |
1404 | ||
d40fc489 GG |
1405 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1406 | ||
8ca151b5 JB |
1407 | return ret; |
1408 | } | |
1409 | ||
38a12b5b JB |
1410 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1411 | struct ieee80211_vif *vif) | |
8ca151b5 | 1412 | { |
d92b732e | 1413 | u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
8ca151b5 JB |
1414 | |
1415 | if (tfd_msk) { | |
fe92e32a EG |
1416 | /* |
1417 | * mac80211 first removes all the stations of the vif and | |
1418 | * then removes the vif. When it removes a station it also | |
1419 | * flushes the AMPDU session. So by now, all the AMPDU sessions | |
1420 | * of all the stations of this vif are closed, and the queues | |
1421 | * of these AMPDU sessions are properly closed. | |
1422 | * We still need to take care of the shared queues of the vif. | |
1423 | * Flush them here. | |
1424 | */ | |
8ca151b5 | 1425 | mutex_lock(&mvm->mutex); |
5888a40c | 1426 | iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); |
8ca151b5 | 1427 | mutex_unlock(&mvm->mutex); |
fe92e32a EG |
1428 | |
1429 | /* | |
1430 | * There are transports that buffer a few frames in the host. | |
1431 | * For these, the flush above isn't enough since while we were | |
1432 | * flushing, the transport might have sent more frames to the | |
1433 | * device. To solve this, wait here until the transport is | |
1434 | * empty. Technically, this could have replaced the flush | |
1435 | * above, but flush is much faster than draining. So flush | |
1436 | * first, and drain to make sure we have no frames in the | |
1437 | * transport anymore. | |
1438 | * If a station still had frames on the shared queues, it is | |
1439 | * already marked as draining, so to complete the draining, we | |
1440 | * just need to wait until the transport is empty. | |
1441 | */ | |
1442 | iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); | |
8ca151b5 JB |
1443 | } |
1444 | ||
1445 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1446 | /* | |
1447 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1448 | * We assume here that all the packets sent to the OFFCHANNEL | |
1449 | * queue are sent in ROC session. | |
1450 | */ | |
1451 | flush_work(&mvm->roc_done_wk); | |
1452 | } else { | |
1453 | /* | |
1454 | * By now, all the AC queues are empty. The AGG queues are | |
1455 | * empty too. We already got all the Tx responses for all the | |
1456 | * packets in the queues. The drain work can have been | |
0742a75a | 1457 | * triggered. Flush it. |
8ca151b5 JB |
1458 | */ |
1459 | flush_work(&mvm->sta_drained_wk); | |
1460 | } | |
38a12b5b JB |
1461 | } |
1462 | ||
1463 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1464 | struct ieee80211_vif *vif) | |
1465 | { | |
1466 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1467 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1468 | ||
1469 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1470 | |
1471 | mutex_lock(&mvm->mutex); | |
1472 | ||
7df15b1e HG |
1473 | if (mvm->bf_allowed_vif == mvmvif) { |
1474 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1475 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1476 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1477 | } |
1478 | ||
63494374 JB |
1479 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1480 | ||
8ca151b5 JB |
1481 | /* |
1482 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1483 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1484 | */ |
5023d966 JB |
1485 | if (vif->type == NL80211_IFTYPE_AP || |
1486 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1487 | #ifdef CONFIG_NL80211_TESTMODE |
1488 | if (vif == mvm->noa_vif) { | |
1489 | mvm->noa_vif = NULL; | |
1490 | mvm->noa_duration = 0; | |
1491 | } | |
1492 | #endif | |
013290aa | 1493 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1494 | goto out_release; |
1495 | } | |
1496 | ||
1497 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1498 | mvm->p2p_device_vif = NULL; | |
013290aa | 1499 | iwl_mvm_rm_bcast_sta(mvm, vif); |
8ca151b5 | 1500 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1501 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1502 | mvmvif->phy_ctxt = NULL; |
1503 | } | |
1504 | ||
5ee2b215 | 1505 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1506 | mvm->vif_count--; |
1c2abf72 | 1507 | |
999609f1 | 1508 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1509 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1510 | ||
1511 | out_release: | |
1512 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1513 | mutex_unlock(&mvm->mutex); | |
1514 | } | |
1515 | ||
1516 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1517 | { |
8ca151b5 JB |
1518 | return 0; |
1519 | } | |
1520 | ||
e59647ea EP |
1521 | struct iwl_mvm_mc_iter_data { |
1522 | struct iwl_mvm *mvm; | |
1523 | int port_id; | |
1524 | }; | |
1525 | ||
1526 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1527 | struct ieee80211_vif *vif) | |
1528 | { | |
1529 | struct iwl_mvm_mc_iter_data *data = _data; | |
1530 | struct iwl_mvm *mvm = data->mvm; | |
1531 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1532 | int ret, len; | |
1533 | ||
1534 | /* if we don't have free ports, mcast frames will be dropped */ | |
1535 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1536 | return; | |
1537 | ||
1538 | if (vif->type != NL80211_IFTYPE_STATION || | |
1539 | !vif->bss_conf.assoc) | |
1540 | return; | |
1541 | ||
1542 | cmd->port_id = data->port_id++; | |
1543 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1544 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1545 | ||
1c4abec0 | 1546 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1547 | if (ret) |
1548 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1549 | } | |
1550 | ||
1551 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1552 | { | |
1553 | struct iwl_mvm_mc_iter_data iter_data = { | |
1554 | .mvm = mvm, | |
88f2fd73 MG |
1555 | }; |
1556 | ||
e59647ea EP |
1557 | lockdep_assert_held(&mvm->mutex); |
1558 | ||
1559 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1560 | return; | |
1561 | ||
1c4abec0 | 1562 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1563 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1564 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1565 | } |
1566 | ||
e59647ea EP |
1567 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1568 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1569 | { |
e59647ea EP |
1570 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1571 | struct iwl_mcast_filter_cmd *cmd; | |
1572 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1573 | int addr_count; |
1574 | bool pass_all; | |
e59647ea EP |
1575 | int len; |
1576 | ||
f3bd58f4 MS |
1577 | addr_count = netdev_hw_addr_list_count(mc_list); |
1578 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1579 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1580 | if (pass_all) | |
e59647ea | 1581 | addr_count = 0; |
e59647ea EP |
1582 | |
1583 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1584 | cmd = kzalloc(len, GFP_ATOMIC); | |
1585 | if (!cmd) | |
1586 | return 0; | |
1587 | ||
1588 | if (pass_all) { | |
1589 | cmd->pass_all = 1; | |
1590 | return (u64)(unsigned long)cmd; | |
1591 | } | |
1592 | ||
1593 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1594 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1595 | cmd->count, addr->addr); | |
1596 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1597 | addr->addr, ETH_ALEN); | |
1598 | cmd->count++; | |
1599 | } | |
1600 | ||
1601 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1602 | } |
1603 | ||
1604 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1605 | unsigned int changed_flags, | |
1606 | unsigned int *total_flags, | |
1607 | u64 multicast) | |
1608 | { | |
e59647ea EP |
1609 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1610 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1611 | |
e59647ea | 1612 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1613 | |
e59647ea EP |
1614 | /* replace previous configuration */ |
1615 | kfree(mvm->mcast_filter_cmd); | |
1616 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1617 | |
e59647ea EP |
1618 | if (!cmd) |
1619 | goto out; | |
51b6b9e0 | 1620 | |
e59647ea EP |
1621 | iwl_mvm_recalc_multicast(mvm); |
1622 | out: | |
1623 | mutex_unlock(&mvm->mutex); | |
1624 | *total_flags = 0; | |
51b6b9e0 EG |
1625 | } |
1626 | ||
effd1929 AO |
1627 | static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, |
1628 | struct ieee80211_vif *vif, | |
1629 | unsigned int filter_flags, | |
1630 | unsigned int changed_flags) | |
1631 | { | |
1632 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1633 | ||
1634 | /* We support only filter for probe requests */ | |
1635 | if (!(changed_flags & FIF_PROBE_REQ)) | |
1636 | return; | |
1637 | ||
1638 | /* Supported only for p2p client interfaces */ | |
1639 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || | |
1640 | !vif->p2p) | |
1641 | return; | |
1642 | ||
1643 | mutex_lock(&mvm->mutex); | |
1644 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1645 | mutex_unlock(&mvm->mutex); | |
1646 | } | |
1647 | ||
c87163b9 EP |
1648 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1649 | struct iwl_bcast_iter_data { | |
1650 | struct iwl_mvm *mvm; | |
1651 | struct iwl_bcast_filter_cmd *cmd; | |
1652 | u8 current_filter; | |
1653 | }; | |
1654 | ||
1655 | static void | |
1656 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1657 | const struct iwl_fw_bcast_filter *in_filter, | |
1658 | struct iwl_fw_bcast_filter *out_filter) | |
1659 | { | |
1660 | struct iwl_fw_bcast_filter_attr *attr; | |
1661 | int i; | |
1662 | ||
1663 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1664 | ||
1665 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1666 | attr = &out_filter->attrs[i]; | |
1667 | ||
1668 | if (!attr->mask) | |
1669 | break; | |
1670 | ||
2ee8f021 EP |
1671 | switch (attr->reserved1) { |
1672 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1673 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1674 | attr->mask = 0; | |
1675 | continue; | |
1676 | } | |
1677 | ||
1678 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1679 | break; | |
1680 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1681 | attr->val = *(__be32 *)&vif->addr[2]; | |
1682 | break; | |
1683 | default: | |
1684 | break; | |
1685 | } | |
1686 | attr->reserved1 = 0; | |
c87163b9 EP |
1687 | out_filter->num_attrs++; |
1688 | } | |
1689 | } | |
1690 | ||
1691 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1692 | struct ieee80211_vif *vif) | |
1693 | { | |
1694 | struct iwl_bcast_iter_data *data = _data; | |
1695 | struct iwl_mvm *mvm = data->mvm; | |
1696 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1697 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1698 | struct iwl_fw_bcast_mac *bcast_mac; | |
1699 | int i; | |
1700 | ||
1701 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1702 | return; | |
1703 | ||
1704 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1705 | ||
e48393e8 IP |
1706 | /* |
1707 | * enable filtering only for associated stations, but not for P2P | |
1708 | * Clients | |
1709 | */ | |
1710 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1711 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1712 | return; |
1713 | ||
1714 | bcast_mac->default_discard = 1; | |
1715 | ||
1716 | /* copy all configured filters */ | |
1717 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1718 | /* | |
1719 | * Make sure we don't exceed our filters limit. | |
1720 | * if there is still a valid filter to be configured, | |
1721 | * be on the safe side and just allow bcast for this mac. | |
1722 | */ | |
1723 | if (WARN_ON_ONCE(data->current_filter >= | |
1724 | ARRAY_SIZE(cmd->filters))) { | |
1725 | bcast_mac->default_discard = 0; | |
1726 | bcast_mac->attached_filters = 0; | |
1727 | break; | |
1728 | } | |
1729 | ||
1730 | iwl_mvm_set_bcast_filter(vif, | |
1731 | &mvm->bcast_filters[i], | |
1732 | &cmd->filters[data->current_filter]); | |
1733 | ||
1734 | /* skip current filter if it contains no attributes */ | |
1735 | if (!cmd->filters[data->current_filter].num_attrs) | |
1736 | continue; | |
1737 | ||
1738 | /* attach the filter to current mac */ | |
1739 | bcast_mac->attached_filters |= | |
1740 | cpu_to_le16(BIT(data->current_filter)); | |
1741 | ||
1742 | data->current_filter++; | |
1743 | } | |
1744 | } | |
1745 | ||
de06a59e EP |
1746 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1747 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1748 | { |
c87163b9 EP |
1749 | struct iwl_bcast_iter_data iter_data = { |
1750 | .mvm = mvm, | |
de06a59e | 1751 | .cmd = cmd, |
c87163b9 EP |
1752 | }; |
1753 | ||
3b8983b1 MS |
1754 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
1755 | return false; | |
1756 | ||
de06a59e EP |
1757 | memset(cmd, 0, sizeof(*cmd)); |
1758 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1759 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1760 | ||
1761 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1762 | /* use debugfs filters/macs if override is configured */ | |
1763 | if (mvm->dbgfs_bcast_filtering.override) { | |
1764 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1765 | sizeof(cmd->filters)); | |
1766 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1767 | sizeof(cmd->macs)); | |
1768 | return true; | |
1769 | } | |
1770 | #endif | |
c87163b9 EP |
1771 | |
1772 | /* if no filters are configured, do nothing */ | |
1773 | if (!mvm->bcast_filters) | |
de06a59e | 1774 | return false; |
c87163b9 EP |
1775 | |
1776 | /* configure and attach these filters for each associated sta vif */ | |
1777 | ieee80211_iterate_active_interfaces( | |
1778 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1779 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1780 | ||
de06a59e EP |
1781 | return true; |
1782 | } | |
34672bb3 EP |
1783 | |
1784 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) | |
de06a59e EP |
1785 | { |
1786 | struct iwl_bcast_filter_cmd cmd; | |
1787 | ||
1788 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1789 | return 0; | |
1790 | ||
1791 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1792 | return 0; | |
1793 | ||
a1022927 | 1794 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1795 | sizeof(cmd), &cmd); |
1796 | } | |
1797 | #else | |
34672bb3 | 1798 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) |
c87163b9 EP |
1799 | { |
1800 | return 0; | |
1801 | } | |
1802 | #endif | |
1803 | ||
a07a8f37 SS |
1804 | static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, |
1805 | struct ieee80211_vif *vif) | |
1806 | { | |
1807 | struct iwl_mu_group_mgmt_cmd cmd = {}; | |
1808 | ||
1809 | memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, | |
1810 | WLAN_MEMBERSHIP_LEN); | |
1811 | memcpy(cmd.user_position, vif->bss_conf.mu_group.position, | |
1812 | WLAN_USER_POSITION_LEN); | |
1813 | ||
1814 | return iwl_mvm_send_cmd_pdu(mvm, | |
1815 | WIDE_ID(DATA_PATH_GROUP, | |
1816 | UPDATE_MU_GROUPS_CMD), | |
1817 | 0, sizeof(cmd), &cmd); | |
1818 | } | |
1819 | ||
f92659a1 SS |
1820 | static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, |
1821 | struct ieee80211_vif *vif) | |
1822 | { | |
1823 | if (vif->mu_mimo_owner) { | |
1824 | struct iwl_mu_group_mgmt_notif *notif = _data; | |
1825 | ||
1826 | /* | |
1827 | * MU-MIMO Group Id action frame is little endian. We treat | |
1828 | * the data received from firmware as if it came from the | |
1829 | * action frame, so no conversion is needed. | |
1830 | */ | |
1831 | ieee80211_update_mu_groups(vif, | |
1832 | (u8 *)¬if->membership_status, | |
1833 | (u8 *)¬if->user_position); | |
1834 | } | |
1835 | } | |
1836 | ||
1837 | void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, | |
1838 | struct iwl_rx_cmd_buffer *rxb) | |
1839 | { | |
1840 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1841 | struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; | |
1842 | ||
1843 | ieee80211_iterate_active_interfaces_atomic( | |
1844 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1845 | iwl_mvm_mu_mimo_iface_iterator, notif); | |
1846 | } | |
1847 | ||
8ca151b5 JB |
1848 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1849 | struct ieee80211_vif *vif, | |
1850 | struct ieee80211_bss_conf *bss_conf, | |
1851 | u32 changes) | |
1852 | { | |
1853 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1854 | int ret; | |
1855 | ||
6e97b0d2 IP |
1856 | /* |
1857 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1858 | * beacon interval, which was not known when the station interface was | |
1859 | * added. | |
1860 | */ | |
1861 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1862 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1863 | ||
03098268 AE |
1864 | if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc && |
1865 | mvmvif->lqm_active) | |
1866 | iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT, | |
1867 | 0, 0); | |
1868 | ||
3dfd3a97 JB |
1869 | /* |
1870 | * If we're not associated yet, take the (new) BSSID before associating | |
1871 | * so the firmware knows. If we're already associated, then use the old | |
1872 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
1873 | * branch for disassociation below. | |
1874 | */ | |
1875 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
1876 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1877 | ||
1878 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
1879 | if (ret) |
1880 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1881 | ||
3dfd3a97 JB |
1882 | /* after sending it once, adopt mac80211 data */ |
1883 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1884 | mvmvif->associated = bss_conf->assoc; | |
1885 | ||
8ca151b5 JB |
1886 | if (changes & BSS_CHANGED_ASSOC) { |
1887 | if (bss_conf->assoc) { | |
33cef925 JB |
1888 | /* clear statistics to get clean beacon counter */ |
1889 | iwl_mvm_request_statistics(mvm, true); | |
1890 | memset(&mvmvif->beacon_stats, 0, | |
1891 | sizeof(mvmvif->beacon_stats)); | |
1892 | ||
8ca151b5 | 1893 | /* add quota for this interface */ |
7754ae79 | 1894 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1895 | if (ret) { |
1896 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1897 | return; | |
1898 | } | |
016d27e1 JB |
1899 | |
1900 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1901 | &mvm->status)) { | |
1902 | /* | |
1903 | * If we're restarting then the firmware will | |
1904 | * obviously have lost synchronisation with | |
1905 | * the AP. It will attempt to synchronise by | |
1906 | * itself, but we can make it more reliable by | |
1907 | * scheduling a session protection time event. | |
1908 | * | |
1909 | * The firmware needs to receive a beacon to | |
1910 | * catch up with synchronisation, use 110% of | |
1911 | * the beacon interval. | |
1912 | * | |
1913 | * Set a large maximum delay to allow for more | |
1914 | * than a single interface. | |
1915 | */ | |
1916 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1917 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 1918 | 5 * dur, false); |
016d27e1 | 1919 | } |
1f3b0ff8 LE |
1920 | |
1921 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1922 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 1923 | if (vif->p2p) { |
29a90a49 | 1924 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
1925 | iwl_mvm_update_smps(mvm, vif, |
1926 | IWL_MVM_SMPS_REQ_PROT, | |
1927 | IEEE80211_SMPS_DYNAMIC); | |
1928 | } | |
8ca151b5 | 1929 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
1930 | /* |
1931 | * If update fails - SF might be running in associated | |
1932 | * mode while disassociated - which is forbidden. | |
1933 | */ | |
1934 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1935 | "Failed to update SF upon disassociation\n"); | |
1936 | ||
8ca151b5 JB |
1937 | /* remove AP station now that the MAC is unassoc */ |
1938 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
1939 | if (ret) | |
1940 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
1941 | |
1942 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
1943 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
1944 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
1945 | /* remove quota for this interface */ | |
7754ae79 | 1946 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
1947 | if (ret) |
1948 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
1949 | |
1950 | if (vif->p2p) | |
1951 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
1952 | |
1953 | /* this will take the cleared BSSID from bss_conf */ | |
1954 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1955 | if (ret) | |
1956 | IWL_ERR(mvm, | |
1957 | "failed to update MAC %pM (clear after unassoc)\n", | |
1958 | vif->addr); | |
8ca151b5 | 1959 | } |
a20fd398 | 1960 | |
a07a8f37 SS |
1961 | /* |
1962 | * The firmware tracks the MU-MIMO group on its own. | |
f92659a1 | 1963 | * However, on HW restart we should restore this data. |
a07a8f37 SS |
1964 | */ |
1965 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
f92659a1 | 1966 | (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { |
a07a8f37 SS |
1967 | ret = iwl_mvm_update_mu_groups(mvm, vif); |
1968 | if (ret) | |
1969 | IWL_ERR(mvm, | |
1970 | "failed to update VHT MU_MIMO groups\n"); | |
1971 | } | |
1972 | ||
e59647ea | 1973 | iwl_mvm_recalc_multicast(mvm); |
34672bb3 | 1974 | iwl_mvm_configure_bcast_filter(mvm); |
e59647ea | 1975 | |
a20fd398 AO |
1976 | /* reset rssi values */ |
1977 | mvmvif->bf_data.ave_beacon_signal = 0; | |
1978 | ||
8e484f0b | 1979 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
1980 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
1981 | IEEE80211_SMPS_AUTOMATIC); | |
355346ba AS |
1982 | if (fw_has_capa(&mvm->fw->ucode_capa, |
1983 | IWL_UCODE_TLV_CAPA_UMAC_SCAN)) | |
1984 | iwl_mvm_config_scan(mvm); | |
989c6505 | 1985 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
1986 | /* |
1987 | * We received a beacon _after_ association so | |
1988 | * remove the session protection. | |
1989 | */ | |
1990 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
1991 | &mvmvif->time_event_data); | |
8ca151b5 | 1992 | } |
cc87d322 EH |
1993 | |
1994 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
1995 | iwl_mvm_sf_update(mvm, vif, false); | |
1996 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
1997 | } | |
1998 | ||
283115fb AA |
1999 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | |
2000 | /* | |
2001 | * Send power command on every beacon change, | |
2002 | * because we may have not enabled beacon abort yet. | |
2003 | */ | |
2004 | BSS_CHANGED_BEACON_INFO)) { | |
1bc10d3b JB |
2005 | ret = iwl_mvm_power_update_mac(mvm); |
2006 | if (ret) | |
2007 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2008 | } | |
2009 | ||
88f2fd73 MG |
2010 | if (changes & BSS_CHANGED_TXPOWER) { |
2011 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2012 | bss_conf->txpower); | |
2013 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2014 | } | |
a20fd398 AO |
2015 | |
2016 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2017 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2018 | /* reset cqm events tracking */ |
2019 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2020 | if (mvmvif->bf_data.bf_enabled) { |
2021 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2022 | if (ret) | |
2023 | IWL_ERR(mvm, | |
2024 | "failed to update CQM thresholds\n"); | |
2025 | } | |
a20fd398 | 2026 | } |
2ee8f021 EP |
2027 | |
2028 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2029 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
34672bb3 | 2030 | iwl_mvm_configure_bcast_filter(mvm); |
2ee8f021 | 2031 | } |
8ca151b5 JB |
2032 | } |
2033 | ||
5023d966 JB |
2034 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2035 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2036 | { |
2037 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2038 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2039 | int ret; | |
2040 | ||
576eeee9 EP |
2041 | /* |
2042 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2043 | * (the system time), so make sure it is available. | |
2044 | */ | |
2045 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2046 | if (ret) | |
2047 | return ret; | |
2048 | ||
8ca151b5 JB |
2049 | mutex_lock(&mvm->mutex); |
2050 | ||
2051 | /* Send the beacon template */ | |
2052 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2053 | if (ret) | |
2054 | goto out_unlock; | |
2055 | ||
6e97b0d2 IP |
2056 | /* |
2057 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2058 | * beacon interval, which was not known when the AP interface was added. | |
2059 | */ | |
2060 | if (vif->type == NL80211_IFTYPE_AP) | |
2061 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2062 | ||
94939080 GG |
2063 | mvmvif->ap_assoc_sta_count = 0; |
2064 | ||
8ca151b5 JB |
2065 | /* Add the mac context */ |
2066 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2067 | if (ret) | |
2068 | goto out_unlock; | |
2069 | ||
2070 | /* Perform the binding */ | |
2071 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2072 | if (ret) | |
2073 | goto out_remove; | |
2074 | ||
8ca151b5 JB |
2075 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
2076 | * are added and applied to the scheduler */ | |
013290aa | 2077 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
2078 | if (ret) |
2079 | goto out_unbind; | |
2080 | ||
5691e218 IP |
2081 | /* must be set before quota calculations */ |
2082 | mvmvif->ap_ibss_active = true; | |
2083 | ||
a11e144e | 2084 | /* power updated needs to be done before quotas */ |
999609f1 | 2085 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2086 | |
7754ae79 | 2087 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 | 2088 | if (ret) |
a11e144e | 2089 | goto out_quota_failed; |
8ca151b5 | 2090 | |
5023d966 | 2091 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2092 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2093 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2094 | |
29a90a49 EP |
2095 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2096 | ||
8e484f0b | 2097 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2098 | |
f697267f AN |
2099 | /* we don't support TDLS during DCM */ |
2100 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2101 | iwl_mvm_teardown_tdls_peers(mvm); | |
2102 | ||
939e4904 | 2103 | goto out_unlock; |
8ca151b5 | 2104 | |
a11e144e | 2105 | out_quota_failed: |
999609f1 | 2106 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2107 | mvmvif->ap_ibss_active = false; |
013290aa | 2108 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 JB |
2109 | out_unbind: |
2110 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2111 | out_remove: | |
2112 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2113 | out_unlock: | |
2114 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2115 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2116 | return ret; |
2117 | } | |
2118 | ||
5023d966 JB |
2119 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2120 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2121 | { |
2122 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2123 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2124 | ||
38a12b5b JB |
2125 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2126 | ||
8ca151b5 JB |
2127 | mutex_lock(&mvm->mutex); |
2128 | ||
664322fa | 2129 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2130 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2131 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2132 | &mvmvif->time_event_data); | |
664322fa | 2133 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
e9cb0327 | 2134 | mvmvif->csa_countdown = false; |
7f0a7c67 | 2135 | } |
664322fa | 2136 | |
003e5236 AO |
2137 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2138 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2139 | mvm->csa_tx_block_bcn_timeout = 0; | |
2140 | } | |
2141 | ||
5023d966 | 2142 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2143 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2144 | |
8e484f0b | 2145 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2146 | |
29a90a49 EP |
2147 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2148 | ||
5023d966 | 2149 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2150 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2151 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2152 | |
7754ae79 | 2153 | iwl_mvm_update_quotas(mvm, false, NULL); |
013290aa | 2154 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 | 2155 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2156 | |
999609f1 | 2157 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2158 | |
8ca151b5 JB |
2159 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2160 | ||
2161 | mutex_unlock(&mvm->mutex); | |
2162 | } | |
2163 | ||
5023d966 JB |
2164 | static void |
2165 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2166 | struct ieee80211_vif *vif, | |
2167 | struct ieee80211_bss_conf *bss_conf, | |
2168 | u32 changes) | |
8ca151b5 | 2169 | { |
be2056fc | 2170 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2171 | |
be2056fc IP |
2172 | /* Changes will be applied when the AP/IBSS is started */ |
2173 | if (!mvmvif->ap_ibss_active) | |
2174 | return; | |
2175 | ||
863230da | 2176 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2177 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2178 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2179 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2180 | |
8ca151b5 | 2181 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2182 | if (changes & BSS_CHANGED_BEACON && |
2183 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2184 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2185 | |
2186 | if (changes & BSS_CHANGED_TXPOWER) { | |
2187 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2188 | bss_conf->txpower); | |
2189 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2190 | } | |
8ca151b5 JB |
2191 | } |
2192 | ||
2193 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2194 | struct ieee80211_vif *vif, | |
2195 | struct ieee80211_bss_conf *bss_conf, | |
2196 | u32 changes) | |
2197 | { | |
2198 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2199 | ||
576eeee9 EP |
2200 | /* |
2201 | * iwl_mvm_bss_info_changed_station() might call | |
2202 | * iwl_mvm_protect_session(), which reads directly from | |
2203 | * the device (the system time), so make sure it is available. | |
2204 | */ | |
2205 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2206 | return; | |
2207 | ||
8ca151b5 JB |
2208 | mutex_lock(&mvm->mutex); |
2209 | ||
723f02ed | 2210 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
c7d42480 | 2211 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
723f02ed | 2212 | |
8ca151b5 JB |
2213 | switch (vif->type) { |
2214 | case NL80211_IFTYPE_STATION: | |
2215 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2216 | break; | |
2217 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2218 | case NL80211_IFTYPE_ADHOC: |
2219 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
2220 | break; |
2221 | default: | |
2222 | /* shouldn't happen */ | |
2223 | WARN_ON_ONCE(1); | |
2224 | } | |
2225 | ||
2226 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2227 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2228 | } |
2229 | ||
2230 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
2231 | struct ieee80211_vif *vif, | |
c56ef672 | 2232 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2233 | { |
2234 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2235 | int ret; | |
2236 | ||
6749dd80 LC |
2237 | if (hw_req->req.n_channels == 0 || |
2238 | hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2239 | return -EINVAL; |
2240 | ||
2241 | mutex_lock(&mvm->mutex); | |
6749dd80 | 2242 | ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); |
8ca151b5 | 2243 | mutex_unlock(&mvm->mutex); |
6749dd80 | 2244 | |
8ca151b5 JB |
2245 | return ret; |
2246 | } | |
2247 | ||
2248 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2249 | struct ieee80211_vif *vif) | |
2250 | { | |
2251 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2252 | ||
2253 | mutex_lock(&mvm->mutex); | |
2254 | ||
e7d3abab LC |
2255 | /* Due to a race condition, it's possible that mac80211 asks |
2256 | * us to stop a hw_scan when it's already stopped. This can | |
2257 | * happen, for instance, if we stopped the scan ourselves, | |
2258 | * called ieee80211_scan_completed() and the userspace called | |
2259 | * cancel scan scan before ieee80211_scan_work() could run. | |
2260 | * To handle that, simply return if the scan is not running. | |
2261 | */ | |
262888fc | 2262 | if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) |
c7d42480 | 2263 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
8ca151b5 JB |
2264 | |
2265 | mutex_unlock(&mvm->mutex); | |
2266 | } | |
2267 | ||
2268 | static void | |
2269 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2270 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2271 | int num_frames, |
2272 | enum ieee80211_frame_release_type reason, | |
2273 | bool more_data) | |
2274 | { | |
2275 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2276 | |
3e56eadf | 2277 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2278 | |
3e56eadf JB |
2279 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2280 | tids, more_data, false); | |
2281 | } | |
2282 | ||
2283 | static void | |
2284 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2285 | struct ieee80211_sta *sta, u16 tids, | |
2286 | int num_frames, | |
2287 | enum ieee80211_frame_release_type reason, | |
2288 | bool more_data) | |
2289 | { | |
2290 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2291 | ||
2292 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
2293 | ||
2294 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2295 | tids, more_data, true); | |
8ca151b5 JB |
2296 | } |
2297 | ||
2298 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
2299 | struct ieee80211_vif *vif, | |
2300 | enum sta_notify_cmd cmd, | |
2301 | struct ieee80211_sta *sta) | |
2302 | { | |
2303 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2304 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
c22b0ff5 | 2305 | unsigned long txqs = 0, tids = 0; |
3e56eadf | 2306 | int tid; |
8ca151b5 | 2307 | |
c22b0ff5 EG |
2308 | spin_lock_bh(&mvmsta->lock); |
2309 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2310 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
2311 | ||
2312 | if (tid_data->state != IWL_AGG_ON && | |
2313 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
2314 | continue; | |
2315 | ||
2316 | __set_bit(tid_data->txq_id, &txqs); | |
2317 | ||
2318 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
2319 | continue; | |
2320 | ||
2321 | __set_bit(tid, &tids); | |
2322 | } | |
2323 | ||
8ca151b5 JB |
2324 | switch (cmd) { |
2325 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 2326 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 2327 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf | 2328 | |
c22b0ff5 | 2329 | for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
3e56eadf | 2330 | ieee80211_sta_set_buffered(sta, tid, true); |
c22b0ff5 EG |
2331 | |
2332 | if (txqs) | |
2333 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); | |
8ca151b5 JB |
2334 | /* |
2335 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2336 | * queues to this station will not be transmitted. The fw will | |
2337 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2338 | */ | |
2339 | break; | |
2340 | case STA_NOTIFY_AWAKE: | |
881acd89 | 2341 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 2342 | break; |
c22b0ff5 EG |
2343 | |
2344 | if (txqs) | |
2345 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); | |
9cc40712 | 2346 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2347 | break; |
2348 | default: | |
2349 | break; | |
2350 | } | |
c22b0ff5 | 2351 | spin_unlock_bh(&mvmsta->lock); |
8ca151b5 JB |
2352 | } |
2353 | ||
1ddbbb0c JB |
2354 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2355 | struct ieee80211_vif *vif, | |
2356 | struct ieee80211_sta *sta) | |
2357 | { | |
2358 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2359 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2360 | |
2361 | /* | |
2362 | * This is called before mac80211 does RCU synchronisation, | |
2363 | * so here we already invalidate our internal RCU-protected | |
2364 | * station pointer. The rest of the code will thus no longer | |
2365 | * be able to find the station this way, and we don't rely | |
2366 | * on further RCU synchronisation after the sta_state() | |
2367 | * callback deleted the station. | |
2368 | */ | |
2369 | mutex_lock(&mvm->mutex); | |
2370 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2371 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2372 | ERR_PTR(-ENOENT)); | |
94939080 | 2373 | |
1ddbbb0c JB |
2374 | mutex_unlock(&mvm->mutex); |
2375 | } | |
2376 | ||
bd1ba664 JB |
2377 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2378 | const u8 *bssid) | |
2379 | { | |
2380 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2381 | return; | |
2382 | ||
c5241b0c | 2383 | if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { |
cee5a882 AA |
2384 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2385 | return; | |
2386 | } | |
2387 | ||
11dee0b4 EG |
2388 | if (!vif->p2p && |
2389 | (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { | |
bd1ba664 JB |
2390 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2391 | return; | |
2392 | } | |
2393 | ||
2394 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2395 | } | |
2396 | ||
1e8f1329 GBA |
2397 | static void |
2398 | iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, | |
2399 | struct ieee80211_vif *vif, u8 *peer_addr, | |
2400 | enum nl80211_tdls_operation action) | |
2401 | { | |
2402 | struct iwl_fw_dbg_trigger_tlv *trig; | |
2403 | struct iwl_fw_dbg_trigger_tdls *tdls_trig; | |
2404 | ||
2405 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) | |
2406 | return; | |
2407 | ||
2408 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); | |
2409 | tdls_trig = (void *)trig->data; | |
2410 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
2411 | return; | |
2412 | ||
2413 | if (!(tdls_trig->action_bitmap & BIT(action))) | |
2414 | return; | |
2415 | ||
2416 | if (tdls_trig->peer_mode && | |
2417 | memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) | |
2418 | return; | |
2419 | ||
2420 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
2421 | "TDLS event occurred, peer %pM, action %d", | |
2422 | peer_addr, action); | |
2423 | } | |
2424 | ||
24afba76 LK |
2425 | static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm, |
2426 | struct iwl_mvm_sta *mvm_sta) | |
2427 | { | |
2428 | struct iwl_mvm_tid_data *tid_data; | |
2429 | struct sk_buff *skb; | |
2430 | int i; | |
2431 | ||
2432 | spin_lock_bh(&mvm_sta->lock); | |
2433 | for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { | |
2434 | tid_data = &mvm_sta->tid_data[i]; | |
2435 | while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) | |
2436 | ieee80211_free_txskb(mvm->hw, skb); | |
2437 | } | |
2438 | spin_unlock_bh(&mvm_sta->lock); | |
2439 | } | |
2440 | ||
8ca151b5 JB |
2441 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2442 | struct ieee80211_vif *vif, | |
2443 | struct ieee80211_sta *sta, | |
2444 | enum ieee80211_sta_state old_state, | |
2445 | enum ieee80211_sta_state new_state) | |
2446 | { | |
2447 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2448 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2449 | int ret; | |
2450 | ||
2451 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2452 | sta->addr, old_state, new_state); | |
2453 | ||
2454 | /* this would be a mac80211 bug ... but don't crash */ | |
2455 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2456 | return -EINVAL; | |
2457 | ||
2458 | /* if a STA is being removed, reuse its ID */ | |
2459 | flush_work(&mvm->sta_drained_wk); | |
2460 | ||
24afba76 LK |
2461 | /* |
2462 | * If we are in a STA removal flow and in DQA mode: | |
2463 | * | |
2464 | * This is after the sync_rcu part, so the queues have already been | |
2465 | * flushed. No more TXs on their way in mac80211's path, and no more in | |
2466 | * the queues. | |
2467 | * Also, we won't be getting any new TX frames for this station. | |
2468 | * What we might have are deferred TX frames that need to be taken care | |
2469 | * of. | |
2470 | * | |
2471 | * Drop any still-queued deferred-frame before removing the STA, and | |
2472 | * make sure the worker is no longer handling frames for this STA. | |
2473 | */ | |
2474 | if (old_state == IEEE80211_STA_NONE && | |
2475 | new_state == IEEE80211_STA_NOTEXIST && | |
2476 | iwl_mvm_is_dqa_supported(mvm)) { | |
2477 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); | |
2478 | ||
2479 | iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta); | |
2480 | flush_work(&mvm->add_stream_wk); | |
2481 | ||
2482 | /* | |
2483 | * No need to make sure deferred TX indication is off since the | |
2484 | * worker will already remove it if it was on | |
2485 | */ | |
2486 | } | |
2487 | ||
8ca151b5 JB |
2488 | mutex_lock(&mvm->mutex); |
2489 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2490 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2491 | /* |
2492 | * Firmware bug - it'll crash if the beacon interval is less | |
2493 | * than 16. We can't avoid connecting at all, so refuse the | |
2494 | * station state change, this will cause mac80211 to abandon | |
2495 | * attempts to connect to this AP, and eventually wpa_s will | |
2496 | * blacklist the AP... | |
2497 | */ | |
2498 | if (vif->type == NL80211_IFTYPE_STATION && | |
2499 | vif->bss_conf.beacon_int < 16) { | |
2500 | IWL_ERR(mvm, | |
2501 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2502 | sta->addr, vif->bss_conf.beacon_int); | |
2503 | ret = -EINVAL; | |
2504 | goto out_unlock; | |
2505 | } | |
cf7b491d AN |
2506 | |
2507 | if (sta->tdls && | |
2508 | (vif->p2p || | |
fa3d07e4 AN |
2509 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2510 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2511 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2512 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2513 | ret = -EBUSY; | |
2514 | goto out_unlock; | |
2515 | } | |
2516 | ||
8ca151b5 | 2517 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1e8f1329 | 2518 | if (sta->tdls && ret == 0) { |
fa3d07e4 | 2519 | iwl_mvm_recalc_tdls_state(mvm, vif, true); |
1e8f1329 GBA |
2520 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2521 | NL80211_TDLS_SETUP); | |
2522 | } | |
8ca151b5 JB |
2523 | } else if (old_state == IEEE80211_STA_NONE && |
2524 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2525 | /* |
2526 | * EBS may be disabled due to previous failures reported by FW. | |
2527 | * Reset EBS status here assuming environment has been changed. | |
2528 | */ | |
2529 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2530 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2531 | ret = 0; |
2532 | } else if (old_state == IEEE80211_STA_AUTH && | |
2533 | new_state == IEEE80211_STA_ASSOC) { | |
8be30c13 AB |
2534 | if (vif->type == NL80211_IFTYPE_AP) { |
2535 | mvmvif->ap_assoc_sta_count++; | |
2536 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2537 | } | |
7a453973 JB |
2538 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
2539 | if (ret == 0) | |
2540 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
2541 | mvmvif->phy_ctxt->channel->band, |
2542 | true); | |
8ca151b5 JB |
2543 | } else if (old_state == IEEE80211_STA_ASSOC && |
2544 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2545 | |
2546 | /* we don't support TDLS during DCM */ | |
2547 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2548 | iwl_mvm_teardown_tdls_peers(mvm); | |
2549 | ||
1e8f1329 GBA |
2550 | if (sta->tdls) |
2551 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, | |
2552 | NL80211_TDLS_ENABLE_LINK); | |
2553 | ||
7df15b1e | 2554 | /* enable beacon filtering */ |
fa7b2e7f | 2555 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2556 | ret = 0; |
2557 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2558 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2559 | /* disable beacon filtering */ |
a1022927 | 2560 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2561 | ret = 0; |
2562 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2563 | new_state == IEEE80211_STA_AUTH) { | |
8be30c13 AB |
2564 | if (vif->type == NL80211_IFTYPE_AP) { |
2565 | mvmvif->ap_assoc_sta_count--; | |
2566 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2567 | } | |
8ca151b5 JB |
2568 | ret = 0; |
2569 | } else if (old_state == IEEE80211_STA_AUTH && | |
2570 | new_state == IEEE80211_STA_NONE) { | |
2571 | ret = 0; | |
2572 | } else if (old_state == IEEE80211_STA_NONE && | |
2573 | new_state == IEEE80211_STA_NOTEXIST) { | |
2574 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1e8f1329 | 2575 | if (sta->tdls) { |
fa3d07e4 | 2576 | iwl_mvm_recalc_tdls_state(mvm, vif, false); |
1e8f1329 GBA |
2577 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2578 | NL80211_TDLS_DISABLE_LINK); | |
2579 | } | |
8ca151b5 JB |
2580 | } else { |
2581 | ret = -EIO; | |
2582 | } | |
48bc1307 | 2583 | out_unlock: |
8ca151b5 JB |
2584 | mutex_unlock(&mvm->mutex); |
2585 | ||
9c126cd6 LK |
2586 | if (sta->tdls && ret == 0) { |
2587 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2588 | new_state == IEEE80211_STA_NONE) | |
2589 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2590 | else if (old_state == IEEE80211_STA_NONE && | |
2591 | new_state == IEEE80211_STA_NOTEXIST) | |
2592 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2593 | } | |
2594 | ||
8ca151b5 JB |
2595 | return ret; |
2596 | } | |
2597 | ||
2598 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2599 | { | |
2600 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2601 | ||
2602 | mvm->rts_threshold = value; | |
2603 | ||
2604 | return 0; | |
2605 | } | |
2606 | ||
1f3b0ff8 LE |
2607 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2608 | struct ieee80211_vif *vif, | |
2609 | struct ieee80211_sta *sta, u32 changed) | |
2610 | { | |
2611 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2612 | ||
2613 | if (vif->type == NL80211_IFTYPE_STATION && | |
2614 | changed & IEEE80211_RC_NSS_CHANGED) | |
2615 | iwl_mvm_sf_update(mvm, vif, false); | |
2616 | } | |
2617 | ||
8ca151b5 JB |
2618 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2619 | struct ieee80211_vif *vif, u16 ac, | |
2620 | const struct ieee80211_tx_queue_params *params) | |
2621 | { | |
2622 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2623 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2624 | ||
2625 | mvmvif->queue_params[ac] = *params; | |
2626 | ||
2627 | /* | |
2628 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2629 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2630 | */ | |
2631 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2632 | int ret; | |
2633 | ||
2634 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2635 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2636 | mutex_unlock(&mvm->mutex); |
2637 | return ret; | |
2638 | } | |
2639 | return 0; | |
2640 | } | |
2641 | ||
2642 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2643 | struct ieee80211_vif *vif) | |
2644 | { | |
2645 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
7c70fee5 SS |
2646 | u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; |
2647 | u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; | |
8ca151b5 JB |
2648 | |
2649 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2650 | return; | |
2651 | ||
576eeee9 EP |
2652 | /* |
2653 | * iwl_mvm_protect_session() reads directly from the device | |
2654 | * (the system time), so make sure it is available. | |
2655 | */ | |
2656 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2657 | return; | |
2658 | ||
8ca151b5 JB |
2659 | mutex_lock(&mvm->mutex); |
2660 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2661 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2662 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2663 | |
2664 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2665 | } |
2666 | ||
35a000b7 DS |
2667 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2668 | struct ieee80211_vif *vif, | |
2669 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2670 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2671 | { |
2672 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
35a000b7 | 2673 | |
35a000b7 | 2674 | int ret; |
4660dfbb | 2675 | |
35a000b7 DS |
2676 | mutex_lock(&mvm->mutex); |
2677 | ||
1f940386 | 2678 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2679 | ret = -EBUSY; |
2680 | goto out; | |
2681 | } | |
2682 | ||
19945dfb | 2683 | ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); |
d2496221 | 2684 | |
35a000b7 DS |
2685 | out: |
2686 | mutex_unlock(&mvm->mutex); | |
2687 | return ret; | |
2688 | } | |
2689 | ||
37e3308c JB |
2690 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2691 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2692 | { |
2693 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2694 | int ret; |
35a000b7 DS |
2695 | |
2696 | mutex_lock(&mvm->mutex); | |
e7d3abab LC |
2697 | |
2698 | /* Due to a race condition, it's possible that mac80211 asks | |
2699 | * us to stop a sched_scan when it's already stopped. This | |
2700 | * can happen, for instance, if we stopped the scan ourselves, | |
2701 | * called ieee80211_sched_scan_stopped() and the userspace called | |
2702 | * stop sched scan scan before ieee80211_sched_scan_stopped_work() | |
2703 | * could run. To handle this, simply return if the scan is | |
2704 | * not running. | |
2705 | */ | |
262888fc | 2706 | if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { |
e7d3abab LC |
2707 | mutex_unlock(&mvm->mutex); |
2708 | return 0; | |
2709 | } | |
2710 | ||
c7d42480 | 2711 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); |
35a000b7 | 2712 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2713 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2714 | |
33ea27f6 | 2715 | return ret; |
35a000b7 DS |
2716 | } |
2717 | ||
8ca151b5 JB |
2718 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2719 | enum set_key_cmd cmd, | |
2720 | struct ieee80211_vif *vif, | |
2721 | struct ieee80211_sta *sta, | |
2722 | struct ieee80211_key_conf *key) | |
2723 | { | |
2724 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
f5e28eac JB |
2725 | struct iwl_mvm_sta *mvmsta; |
2726 | struct iwl_mvm_key_pn *ptk_pn; | |
2727 | int keyidx = key->keyidx; | |
8ca151b5 | 2728 | int ret; |
d6ee54a9 | 2729 | u8 key_offset; |
8ca151b5 JB |
2730 | |
2731 | if (iwlwifi_mod_params.sw_crypto) { | |
2732 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
2733 | return -EOPNOTSUPP; | |
2734 | } | |
2735 | ||
2736 | switch (key->cipher) { | |
2737 | case WLAN_CIPHER_SUITE_TKIP: | |
2738 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1ad4f639 | 2739 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
8ca151b5 | 2740 | break; |
ca8c0f4b | 2741 | case WLAN_CIPHER_SUITE_CCMP: |
2a53d166 AB |
2742 | case WLAN_CIPHER_SUITE_GCMP: |
2743 | case WLAN_CIPHER_SUITE_GCMP_256: | |
ca8c0f4b JB |
2744 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
2745 | break; | |
8ca151b5 | 2746 | case WLAN_CIPHER_SUITE_AES_CMAC: |
30686bf7 | 2747 | WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); |
8ca151b5 JB |
2748 | break; |
2749 | case WLAN_CIPHER_SUITE_WEP40: | |
2750 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2751 | /* For non-client mode, only use WEP keys for TX as we probably |
2752 | * don't have a station yet anyway and would then have to keep | |
2753 | * track of the keys, linking them to each of the clients/peers | |
2754 | * as they appear. For now, don't do that, for performance WEP | |
2755 | * offload doesn't really matter much, but we need it for some | |
2756 | * other offload features in client mode. | |
8ca151b5 | 2757 | */ |
ba3943b0 JB |
2758 | if (vif->type != NL80211_IFTYPE_STATION) |
2759 | return 0; | |
2760 | break; | |
8ca151b5 | 2761 | default: |
e36e5433 MS |
2762 | /* currently FW supports only one optional cipher scheme */ |
2763 | if (hw->n_cipher_schemes && | |
2764 | hw->cipher_schemes->cipher == key->cipher) | |
2765 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2766 | else | |
2767 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2768 | } |
2769 | ||
2770 | mutex_lock(&mvm->mutex); | |
2771 | ||
2772 | switch (cmd) { | |
2773 | case SET_KEY: | |
5023d966 JB |
2774 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2775 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2776 | /* | |
2777 | * GTK on AP interface is a TX-only key, return 0; | |
2778 | * on IBSS they're per-station and because we're lazy | |
2779 | * we don't support them for RX, so do the same. | |
81279c49 | 2780 | * CMAC in AP/IBSS modes must be done in software. |
5023d966 | 2781 | */ |
81279c49 JB |
2782 | if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) |
2783 | ret = -EOPNOTSUPP; | |
2784 | else | |
2785 | ret = 0; | |
6caffd4f JB |
2786 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
2787 | break; | |
2788 | } | |
2789 | ||
b546dcd6 JB |
2790 | /* During FW restart, in order to restore the state as it was, |
2791 | * don't try to reprogram keys we previously failed for. | |
2792 | */ | |
2793 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2794 | key->hw_key_idx == STA_KEY_IDX_INVALID) { | |
2795 | IWL_DEBUG_MAC80211(mvm, | |
2796 | "skip invalid idx key programming during restart\n"); | |
2797 | ret = 0; | |
2798 | break; | |
2799 | } | |
2800 | ||
f5e28eac JB |
2801 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
2802 | sta && iwl_mvm_has_new_rx_api(mvm) && | |
2803 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
2804 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
2805 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
2806 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
2807 | struct ieee80211_key_seq seq; |
2808 | int tid, q; | |
2809 | ||
2810 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
2811 | WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); | |
2812 | ptk_pn = kzalloc(sizeof(*ptk_pn) + | |
2813 | mvm->trans->num_rx_queues * | |
2814 | sizeof(ptk_pn->q[0]), | |
2815 | GFP_KERNEL); | |
2816 | if (!ptk_pn) { | |
2817 | ret = -ENOMEM; | |
2818 | break; | |
2819 | } | |
2820 | ||
2821 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2822 | ieee80211_get_key_rx_seq(key, tid, &seq); | |
2823 | for (q = 0; q < mvm->trans->num_rx_queues; q++) | |
2824 | memcpy(ptk_pn->q[q].pn[tid], | |
2825 | seq.ccmp.pn, | |
2826 | IEEE80211_CCMP_PN_LEN); | |
2827 | } | |
2828 | ||
2829 | rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); | |
2830 | } | |
2831 | ||
d6ee54a9 LC |
2832 | /* in HW restart reuse the index, otherwise request a new one */ |
2833 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
2834 | key_offset = key->hw_key_idx; | |
2835 | else | |
2836 | key_offset = STA_KEY_IDX_INVALID; | |
2837 | ||
8ca151b5 | 2838 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
d6ee54a9 | 2839 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); |
8ca151b5 JB |
2840 | if (ret) { |
2841 | IWL_WARN(mvm, "set key failed\n"); | |
2842 | /* | |
2843 | * can't add key for RX, but we don't need it | |
2844 | * in the device for TX so still return 0 | |
2845 | */ | |
6caffd4f | 2846 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
2847 | ret = 0; |
2848 | } | |
2849 | ||
2850 | break; | |
2851 | case DISABLE_KEY: | |
6caffd4f JB |
2852 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
2853 | ret = 0; | |
2854 | break; | |
2855 | } | |
2856 | ||
f5e28eac JB |
2857 | if (sta && iwl_mvm_has_new_rx_api(mvm) && |
2858 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
2859 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
2860 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
2861 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
2862 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
2863 | ptk_pn = rcu_dereference_protected( | |
2864 | mvmsta->ptk_pn[keyidx], | |
2865 | lockdep_is_held(&mvm->mutex)); | |
2866 | RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); | |
2867 | if (ptk_pn) | |
2868 | kfree_rcu(ptk_pn, rcu_head); | |
2869 | } | |
2870 | ||
8ca151b5 JB |
2871 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2872 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2873 | break; | |
2874 | default: | |
2875 | ret = -EINVAL; | |
2876 | } | |
2877 | ||
2878 | mutex_unlock(&mvm->mutex); | |
2879 | return ret; | |
2880 | } | |
2881 | ||
2882 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2883 | struct ieee80211_vif *vif, | |
2884 | struct ieee80211_key_conf *keyconf, | |
2885 | struct ieee80211_sta *sta, | |
2886 | u32 iv32, u16 *phase1key) | |
2887 | { | |
2888 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2889 | ||
5023d966 JB |
2890 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2891 | return; | |
2892 | ||
8ca151b5 JB |
2893 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2894 | } | |
2895 | ||
2896 | ||
b112889c AM |
2897 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
2898 | struct iwl_rx_packet *pkt, void *data) | |
2899 | { | |
2900 | struct iwl_mvm *mvm = | |
2901 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
2902 | struct iwl_hs20_roc_res *resp; | |
2903 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
2904 | struct iwl_mvm_time_event_data *te_data = data; | |
2905 | ||
2906 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
2907 | return true; | |
2908 | ||
2909 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
2910 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
2911 | return true; | |
2912 | } | |
2913 | ||
2914 | resp = (void *)pkt->data; | |
2915 | ||
2916 | IWL_DEBUG_TE(mvm, | |
2917 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
2918 | resp->status, resp->event_unique_id); | |
2919 | ||
2920 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
2921 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
2922 | te_data->uid); | |
2923 | ||
2924 | spin_lock_bh(&mvm->time_event_lock); | |
2925 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
2926 | spin_unlock_bh(&mvm->time_event_lock); | |
2927 | ||
2928 | return true; | |
2929 | } | |
2930 | ||
dc28e12f MG |
2931 | #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) |
2932 | #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) | |
2933 | #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) | |
2934 | #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) | |
2935 | #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) | |
b112889c AM |
2936 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
2937 | struct ieee80211_channel *channel, | |
2938 | struct ieee80211_vif *vif, | |
2939 | int duration) | |
2940 | { | |
2941 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
2942 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2943 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
6eb031d2 | 2944 | static const u16 time_event_response[] = { HOT_SPOT_CMD }; |
b112889c | 2945 | struct iwl_notification_wait wait_time_event; |
dc28e12f MG |
2946 | u32 dtim_interval = vif->bss_conf.dtim_period * |
2947 | vif->bss_conf.beacon_int; | |
2948 | u32 req_dur, delay; | |
b112889c AM |
2949 | struct iwl_hs20_roc_req aux_roc_req = { |
2950 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
2951 | .id_and_color = | |
2952 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
2953 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
2954 | /* Set the channel info data */ | |
57fbcce3 | 2955 | .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ? |
b112889c AM |
2956 | PHY_BAND_24 : PHY_BAND_5, |
2957 | .channel_info.channel = channel->hw_value, | |
2958 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
2959 | /* Set the time and duration */ | |
2960 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
b112889c AM |
2961 | }; |
2962 | ||
dc28e12f MG |
2963 | delay = AUX_ROC_MIN_DELAY; |
2964 | req_dur = MSEC_TO_TU(duration); | |
2965 | ||
2966 | /* | |
2967 | * If we are associated we want the delay time to be at least one | |
2968 | * dtim interval so that the FW can wait until after the DTIM and | |
2969 | * then start the time event, this will potentially allow us to | |
2970 | * remain off-channel for the max duration. | |
2971 | * Since we want to use almost a whole dtim interval we would also | |
2972 | * like the delay to be for 2-3 dtim intervals, in case there are | |
2973 | * other time events with higher priority. | |
2974 | */ | |
2975 | if (vif->bss_conf.assoc) { | |
2976 | delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); | |
2977 | /* We cannot remain off-channel longer than the DTIM interval */ | |
2978 | if (dtim_interval <= req_dur) { | |
2979 | req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; | |
2980 | if (req_dur <= AUX_ROC_MIN_DURATION) | |
2981 | req_dur = dtim_interval - | |
2982 | AUX_ROC_MIN_SAFETY_BUFFER; | |
2983 | } | |
2984 | } | |
2985 | ||
2986 | aux_roc_req.duration = cpu_to_le32(req_dur); | |
2987 | aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); | |
2988 | ||
2989 | IWL_DEBUG_TE(mvm, | |
2990 | "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", | |
2991 | channel->hw_value, req_dur, duration, delay, | |
2992 | dtim_interval); | |
b112889c AM |
2993 | /* Set the node address */ |
2994 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
2995 | ||
a6cc5163 MG |
2996 | lockdep_assert_held(&mvm->mutex); |
2997 | ||
2998 | spin_lock_bh(&mvm->time_event_lock); | |
2999 | ||
3000 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
3001 | spin_unlock_bh(&mvm->time_event_lock); | |
3002 | return -EIO; | |
3003 | } | |
3004 | ||
b112889c AM |
3005 | te_data->vif = vif; |
3006 | te_data->duration = duration; | |
3007 | te_data->id = HOT_SPOT_CMD; | |
3008 | ||
b112889c AM |
3009 | spin_unlock_bh(&mvm->time_event_lock); |
3010 | ||
3011 | /* | |
3012 | * Use a notification wait, which really just processes the | |
3013 | * command response and doesn't wait for anything, in order | |
3014 | * to be able to process the response and get the UID inside | |
3015 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
3016 | * stores the buffer and then wakes up this thread, by which | |
3017 | * time another notification (that the time event started) | |
3018 | * might already be processed unsuccessfully. | |
3019 | */ | |
3020 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
3021 | time_event_response, | |
3022 | ARRAY_SIZE(time_event_response), | |
3023 | iwl_mvm_rx_aux_roc, te_data); | |
3024 | ||
3025 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
3026 | &aux_roc_req); | |
3027 | ||
3028 | if (res) { | |
3029 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
3030 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
3031 | goto out_clear_te; | |
3032 | } | |
3033 | ||
3034 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
3035 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
3036 | /* should never fail */ | |
3037 | WARN_ON_ONCE(res); | |
3038 | ||
3039 | if (res) { | |
3040 | out_clear_te: | |
3041 | spin_lock_bh(&mvm->time_event_lock); | |
3042 | iwl_mvm_te_clear_data(mvm, te_data); | |
3043 | spin_unlock_bh(&mvm->time_event_lock); | |
3044 | } | |
3045 | ||
3046 | return res; | |
3047 | } | |
3048 | ||
8ca151b5 JB |
3049 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
3050 | struct ieee80211_vif *vif, | |
3051 | struct ieee80211_channel *channel, | |
d339d5ca IP |
3052 | int duration, |
3053 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
3054 | { |
3055 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 3056 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 3057 | struct cfg80211_chan_def chandef; |
31d385ae IP |
3058 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
3059 | int ret, i; | |
3060 | ||
3061 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
3062 | duration, type); | |
8ca151b5 | 3063 | |
6ed13164 MG |
3064 | flush_work(&mvm->roc_done_wk); |
3065 | ||
a6cc5163 MG |
3066 | mutex_lock(&mvm->mutex); |
3067 | ||
b112889c AM |
3068 | switch (vif->type) { |
3069 | case NL80211_IFTYPE_STATION: | |
859d914c JB |
3070 | if (fw_has_capa(&mvm->fw->ucode_capa, |
3071 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { | |
5ac6c72e LC |
3072 | /* Use aux roc framework (HS20) */ |
3073 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
3074 | vif, duration); | |
3075 | goto out_unlock; | |
3076 | } | |
3077 | IWL_ERR(mvm, "hotspot not supported\n"); | |
3078 | ret = -EINVAL; | |
a6cc5163 | 3079 | goto out_unlock; |
b112889c AM |
3080 | case NL80211_IFTYPE_P2P_DEVICE: |
3081 | /* handle below */ | |
3082 | break; | |
3083 | default: | |
3084 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
3085 | ret = -EINVAL; |
3086 | goto out_unlock; | |
8ca151b5 JB |
3087 | } |
3088 | ||
31d385ae IP |
3089 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3090 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3091 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3092 | continue; | |
3093 | ||
3094 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3095 | /* | |
3096 | * Unbind the P2P_DEVICE from the current PHY context, | |
3097 | * and if the PHY context is not used remove it. | |
3098 | */ | |
3099 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3100 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3101 | goto out_unlock; | |
3102 | ||
3103 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3104 | ||
3105 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3106 | mvmvif->phy_ctxt = phy_ctxt; | |
3107 | ||
3108 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3109 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3110 | goto out_unlock; | |
3111 | ||
3112 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3113 | goto schedule_time_event; | |
3114 | } | |
3115 | } | |
3116 | ||
3117 | /* Need to update the PHY context only if the ROC channel changed */ | |
3118 | if (channel == mvmvif->phy_ctxt->channel) | |
3119 | goto schedule_time_event; | |
3120 | ||
8ca151b5 | 3121 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3122 | |
31d385ae IP |
3123 | /* |
3124 | * Change the PHY context configuration as it is currently referenced | |
3125 | * only by the P2P Device MAC | |
3126 | */ | |
3127 | if (mvmvif->phy_ctxt->ref == 1) { | |
3128 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3129 | &chandef, 1, 1); | |
3130 | if (ret) | |
3131 | goto out_unlock; | |
3132 | } else { | |
3133 | /* | |
3134 | * The PHY context is shared with other MACs. Need to remove the | |
3135 | * P2P Device from the binding, allocate an new PHY context and | |
3136 | * create a new binding | |
3137 | */ | |
3138 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3139 | if (!phy_ctxt) { | |
3140 | ret = -ENOSPC; | |
3141 | goto out_unlock; | |
3142 | } | |
3143 | ||
3144 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3145 | 1, 1); | |
3146 | if (ret) { | |
3147 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3148 | goto out_unlock; | |
3149 | } | |
3150 | ||
3151 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3152 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3153 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3154 | goto out_unlock; | |
3155 | ||
3156 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3157 | ||
3158 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3159 | mvmvif->phy_ctxt = phy_ctxt; | |
3160 | ||
3161 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3162 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3163 | goto out_unlock; | |
3164 | ||
3165 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3166 | } | |
3167 | ||
3168 | schedule_time_event: | |
8ca151b5 | 3169 | /* Schedule the time events */ |
e635c797 | 3170 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3171 | |
31d385ae | 3172 | out_unlock: |
8ca151b5 JB |
3173 | mutex_unlock(&mvm->mutex); |
3174 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3175 | return ret; |
3176 | } | |
3177 | ||
3178 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3179 | { | |
3180 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3181 | ||
3182 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3183 | ||
3184 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3185 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3186 | mutex_unlock(&mvm->mutex); |
3187 | ||
3188 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3189 | return 0; | |
3190 | } | |
3191 | ||
b08c1d97 LC |
3192 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3193 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3194 | { |
fe0f2de3 IP |
3195 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3196 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3197 | int ret; |
3198 | ||
b08c1d97 LC |
3199 | lockdep_assert_held(&mvm->mutex); |
3200 | ||
53a9d61e | 3201 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3202 | |
fe0f2de3 IP |
3203 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3204 | if (!phy_ctxt) { | |
3205 | ret = -ENOSPC; | |
3206 | goto out; | |
3207 | } | |
8ca151b5 | 3208 | |
dcbc3e1a | 3209 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3210 | ctx->rx_chains_static, |
3211 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3212 | if (ret) { |
3213 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3214 | goto out; | |
3215 | } | |
3216 | ||
53a9d61e | 3217 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3218 | *phy_ctxt_id = phy_ctxt->id; |
3219 | out: | |
b08c1d97 LC |
3220 | return ret; |
3221 | } | |
3222 | ||
3223 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3224 | struct ieee80211_chanctx_conf *ctx) | |
3225 | { | |
3226 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3227 | int ret; | |
3228 | ||
3229 | mutex_lock(&mvm->mutex); | |
3230 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3231 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3232 | |
8ca151b5 JB |
3233 | return ret; |
3234 | } | |
3235 | ||
b08c1d97 LC |
3236 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3237 | struct ieee80211_chanctx_conf *ctx) | |
3238 | { | |
3239 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3240 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3241 | ||
3242 | lockdep_assert_held(&mvm->mutex); | |
3243 | ||
3244 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3245 | } | |
3246 | ||
8ca151b5 JB |
3247 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3248 | struct ieee80211_chanctx_conf *ctx) | |
3249 | { | |
3250 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3251 | |
3252 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3253 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3254 | mutex_unlock(&mvm->mutex); |
3255 | } | |
3256 | ||
3257 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3258 | struct ieee80211_chanctx_conf *ctx, | |
3259 | u32 changed) | |
3260 | { | |
3261 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3262 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3263 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3264 | |
31d385ae IP |
3265 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3266 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3267 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3268 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3269 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3270 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3271 | phy_ctxt->ref, changed)) | |
3272 | return; | |
3273 | ||
8ca151b5 | 3274 | mutex_lock(&mvm->mutex); |
4d66449a | 3275 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3276 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3277 | ctx->rx_chains_static, |
3278 | ctx->rx_chains_dynamic); | |
3279 | mutex_unlock(&mvm->mutex); | |
3280 | } | |
3281 | ||
b08c1d97 LC |
3282 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3283 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3284 | struct ieee80211_chanctx_conf *ctx, |
3285 | bool switching_chanctx) | |
8ca151b5 | 3286 | { |
fe0f2de3 IP |
3287 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3288 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3289 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3290 | int ret; | |
3291 | ||
b08c1d97 | 3292 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3293 | |
fe0f2de3 | 3294 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3295 | |
3296 | switch (vif->type) { | |
3297 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3298 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3299 | if (switching_chanctx) { | |
bd3398e2 AO |
3300 | mvmvif->ap_ibss_active = true; |
3301 | break; | |
3302 | } | |
5023d966 | 3303 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3304 | /* |
3305 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3306 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3307 | */ |
3308 | ret = 0; | |
b08c1d97 | 3309 | goto out; |
8ca151b5 | 3310 | case NL80211_IFTYPE_STATION: |
2533edce | 3311 | break; |
8ca151b5 | 3312 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3313 | /* always disable PS when a monitor interface is active */ |
3314 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3315 | break; |
3316 | default: | |
3317 | ret = -EINVAL; | |
b08c1d97 | 3318 | goto out; |
8ca151b5 JB |
3319 | } |
3320 | ||
3321 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3322 | if (ret) | |
b08c1d97 | 3323 | goto out; |
8ca151b5 JB |
3324 | |
3325 | /* | |
92d85562 AB |
3326 | * Power state must be updated before quotas, |
3327 | * otherwise fw will complain. | |
3328 | */ | |
999609f1 | 3329 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3330 | |
3331 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3332 | * interfaces. For the other types, the bss_info changed flow |
3333 | * will handle quota settings. | |
3334 | */ | |
3335 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3336 | mvmvif->monitor_active = true; |
7754ae79 | 3337 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
3338 | if (ret) |
3339 | goto out_remove_binding; | |
0e39eb03 CRI |
3340 | |
3341 | ret = iwl_mvm_add_snif_sta(mvm, vif); | |
3342 | if (ret) | |
3343 | goto out_remove_binding; | |
3344 | ||
8ca151b5 JB |
3345 | } |
3346 | ||
bd3398e2 | 3347 | /* Handle binding during CSA */ |
a57c688d | 3348 | if (vif->type == NL80211_IFTYPE_AP) { |
7754ae79 | 3349 | iwl_mvm_update_quotas(mvm, false, NULL); |
3dfd3a97 | 3350 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3351 | } |
3352 | ||
4741dd04 | 3353 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3354 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3355 | ||
3356 | /* iwl_mvm_protect_session() reads directly from the | |
3357 | * device (the system time), so make sure it is | |
3358 | * available. | |
3359 | */ | |
3360 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3361 | if (ret) | |
3362 | goto out_remove_binding; | |
3363 | ||
3364 | /* Protect the session to make sure we hear the first | |
3365 | * beacon on the new channel. | |
3366 | */ | |
3367 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3368 | vif->bss_conf.beacon_int / 2, | |
3369 | true); | |
3370 | ||
3371 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3372 | ||
7754ae79 | 3373 | iwl_mvm_update_quotas(mvm, false, NULL); |
0ce04ce7 LC |
3374 | } |
3375 | ||
b08c1d97 | 3376 | goto out; |
8ca151b5 | 3377 | |
b08c1d97 | 3378 | out_remove_binding: |
8ca151b5 | 3379 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3380 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3381 | out: |
8ca151b5 JB |
3382 | if (ret) |
3383 | mvmvif->phy_ctxt = NULL; | |
3384 | return ret; | |
3385 | } | |
b08c1d97 LC |
3386 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3387 | struct ieee80211_vif *vif, | |
3388 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3389 | { |
3390 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3391 | int ret; |
8ca151b5 JB |
3392 | |
3393 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3394 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3395 | mutex_unlock(&mvm->mutex); |
3396 | ||
3397 | return ret; | |
3398 | } | |
3399 | ||
3400 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3401 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3402 | struct ieee80211_chanctx_conf *ctx, |
3403 | bool switching_chanctx) | |
b08c1d97 LC |
3404 | { |
3405 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3406 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3407 | |
3408 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3409 | |
3410 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3411 | ||
8ca151b5 | 3412 | switch (vif->type) { |
5023d966 | 3413 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3414 | goto out; |
8ca151b5 | 3415 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3416 | mvmvif->monitor_active = false; |
2533edce | 3417 | mvmvif->ps_disabled = false; |
0e39eb03 | 3418 | iwl_mvm_rm_snif_sta(mvm, vif); |
8ca151b5 | 3419 | break; |
bd3398e2 AO |
3420 | case NL80211_IFTYPE_AP: |
3421 | /* This part is triggered only during CSA */ | |
4741dd04 | 3422 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3423 | goto out; |
bd3398e2 | 3424 | |
7ef0aab6 AO |
3425 | mvmvif->csa_countdown = false; |
3426 | ||
003e5236 AO |
3427 | /* Set CS bit on all the stations */ |
3428 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3429 | ||
3430 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3431 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3432 | ||
bd3398e2 | 3433 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3434 | break; |
3435 | case NL80211_IFTYPE_STATION: | |
3436 | if (!switching_chanctx) | |
3437 | break; | |
3438 | ||
3439 | disabled_vif = vif; | |
3440 | ||
3dfd3a97 | 3441 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3442 | break; |
8ca151b5 JB |
3443 | default: |
3444 | break; | |
3445 | } | |
3446 | ||
7754ae79 | 3447 | iwl_mvm_update_quotas(mvm, false, disabled_vif); |
1e1391ca | 3448 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3449 | |
b08c1d97 | 3450 | out: |
a11e144e | 3451 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3452 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3453 | } |
3454 | ||
3455 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3456 | struct ieee80211_vif *vif, | |
3457 | struct ieee80211_chanctx_conf *ctx) | |
3458 | { | |
3459 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3460 | ||
3461 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3462 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3463 | mutex_unlock(&mvm->mutex); |
3464 | } | |
3465 | ||
50cc9574 LC |
3466 | static int |
3467 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3468 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3469 | { |
b08c1d97 LC |
3470 | int ret; |
3471 | ||
b08c1d97 | 3472 | mutex_lock(&mvm->mutex); |
f0c97783 | 3473 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3474 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3475 | ||
3476 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3477 | if (ret) { | |
3478 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3479 | goto out_reassign; | |
3480 | } | |
3481 | ||
f0c97783 LC |
3482 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3483 | true); | |
b08c1d97 LC |
3484 | if (ret) { |
3485 | IWL_ERR(mvm, | |
3486 | "failed to assign new_ctx during channel switch\n"); | |
3487 | goto out_remove; | |
3488 | } | |
3489 | ||
f697267f AN |
3490 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3491 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3492 | iwl_mvm_teardown_tdls_peers(mvm); | |
3493 | ||
b08c1d97 LC |
3494 | goto out; |
3495 | ||
3496 | out_remove: | |
3497 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3498 | ||
3499 | out_reassign: | |
6fd1fb63 | 3500 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3501 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3502 | goto out_restart; | |
3503 | } | |
3504 | ||
6fd1fb63 LC |
3505 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3506 | true)) { | |
b08c1d97 LC |
3507 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3508 | goto out_restart; | |
3509 | } | |
3510 | ||
3511 | goto out; | |
3512 | ||
3513 | out_restart: | |
3514 | /* things keep failing, better restart the hw */ | |
3515 | iwl_mvm_nic_restart(mvm, false); | |
3516 | ||
3517 | out: | |
3518 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3519 | |
3520 | return ret; | |
3521 | } | |
3522 | ||
48a256e8 LC |
3523 | static int |
3524 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3525 | struct ieee80211_vif_chanctx_switch *vifs) | |
3526 | { | |
3527 | int ret; | |
3528 | ||
3529 | mutex_lock(&mvm->mutex); | |
3530 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3531 | ||
3532 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3533 | true); | |
3534 | if (ret) { | |
3535 | IWL_ERR(mvm, | |
3536 | "failed to assign new_ctx during channel switch\n"); | |
3537 | goto out_reassign; | |
3538 | } | |
3539 | ||
3540 | goto out; | |
3541 | ||
3542 | out_reassign: | |
3543 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3544 | true)) { | |
3545 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3546 | goto out_restart; | |
3547 | } | |
3548 | ||
3549 | goto out; | |
3550 | ||
3551 | out_restart: | |
3552 | /* things keep failing, better restart the hw */ | |
3553 | iwl_mvm_nic_restart(mvm, false); | |
3554 | ||
3555 | out: | |
3556 | mutex_unlock(&mvm->mutex); | |
3557 | ||
3558 | return ret; | |
3559 | } | |
3560 | ||
50cc9574 LC |
3561 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3562 | struct ieee80211_vif_chanctx_switch *vifs, | |
3563 | int n_vifs, | |
3564 | enum ieee80211_chanctx_switch_mode mode) | |
3565 | { | |
3566 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3567 | int ret; | |
3568 | ||
3569 | /* we only support a single-vif right now */ | |
3570 | if (n_vifs > 1) | |
3571 | return -EOPNOTSUPP; | |
3572 | ||
3573 | switch (mode) { | |
3574 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3575 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3576 | break; | |
3577 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3578 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3579 | break; |
3580 | default: | |
3581 | ret = -EOPNOTSUPP; | |
3582 | break; | |
3583 | } | |
3584 | ||
b08c1d97 LC |
3585 | return ret; |
3586 | } | |
3587 | ||
8ca151b5 JB |
3588 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3589 | struct ieee80211_sta *sta, | |
3590 | bool set) | |
3591 | { | |
3592 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3593 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3594 | |
3595 | if (!mvm_sta || !mvm_sta->vif) { | |
3596 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3597 | return -EINVAL; | |
3598 | } | |
3599 | ||
3600 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3601 | } | |
3602 | ||
507cadf2 DS |
3603 | #ifdef CONFIG_NL80211_TESTMODE |
3604 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3605 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3606 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3607 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3608 | }; |
3609 | ||
3610 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3611 | struct ieee80211_vif *vif, | |
3612 | void *data, int len) | |
3613 | { | |
3614 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3615 | int err; | |
3616 | u32 noa_duration; | |
3617 | ||
3618 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
3619 | if (err) | |
3620 | return err; | |
3621 | ||
3622 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3623 | return -EINVAL; | |
3624 | ||
3625 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3626 | case IWL_MVM_TM_CMD_SET_NOA: | |
3627 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3628 | !vif->bss_conf.enable_beacon || | |
3629 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3630 | return -EINVAL; | |
3631 | ||
3632 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3633 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3634 | return -EINVAL; | |
3635 | ||
3636 | mvm->noa_duration = noa_duration; | |
3637 | mvm->noa_vif = vif; | |
3638 | ||
7754ae79 | 3639 | return iwl_mvm_update_quotas(mvm, false, NULL); |
f6c6ad42 JB |
3640 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3641 | /* must be associated client vif - ignore authorized */ | |
3642 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3643 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3644 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3645 | return -EINVAL; | |
3646 | ||
3647 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3648 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3649 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3650 | } |
3651 | ||
3652 | return -EOPNOTSUPP; | |
3653 | } | |
3654 | ||
3655 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3656 | struct ieee80211_vif *vif, | |
3657 | void *data, int len) | |
3658 | { | |
3659 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3660 | int err; | |
3661 | ||
3662 | mutex_lock(&mvm->mutex); | |
3663 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3664 | mutex_unlock(&mvm->mutex); | |
3665 | ||
3666 | return err; | |
3667 | } | |
3668 | #endif | |
3669 | ||
622e3f9b LC |
3670 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3671 | struct ieee80211_vif *vif, | |
3672 | struct ieee80211_channel_switch *chsw) | |
3673 | { | |
3674 | /* By implementing this operation, we prevent mac80211 from | |
3675 | * starting its own channel switch timer, so that we can call | |
3676 | * ieee80211_chswitch_done() ourselves at the right time | |
3677 | * (which is when the absence time event starts). | |
3678 | */ | |
3679 | ||
3680 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3681 | "dummy channel switch op\n"); | |
3682 | } | |
3683 | ||
f028905c LC |
3684 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3685 | struct ieee80211_vif *vif, | |
3686 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3687 | { |
3688 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3689 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3690 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3691 | u32 apply_time; |
f028905c | 3692 | int ret; |
bd3398e2 AO |
3693 | |
3694 | mutex_lock(&mvm->mutex); | |
664322fa | 3695 | |
81d62d5a JB |
3696 | mvmvif->csa_failed = false; |
3697 | ||
6b20d774 | 3698 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3699 | chsw->chandef.center_freq1); |
6b20d774 | 3700 | |
21023b1e | 3701 | iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); |
f35d9c55 | 3702 | |
6b20d774 LC |
3703 | switch (vif->type) { |
3704 | case NL80211_IFTYPE_AP: | |
3705 | csa_vif = | |
3706 | rcu_dereference_protected(mvm->csa_vif, | |
3707 | lockdep_is_held(&mvm->mutex)); | |
3708 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3709 | "Another CSA is already in progress")) { | |
3710 | ret = -EBUSY; | |
3711 | goto out_unlock; | |
3712 | } | |
3713 | ||
d3a108a4 AO |
3714 | /* we still didn't unblock tx. prevent new CS meanwhile */ |
3715 | if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, | |
3716 | lockdep_is_held(&mvm->mutex))) { | |
3717 | ret = -EBUSY; | |
3718 | goto out_unlock; | |
3719 | } | |
3720 | ||
6b20d774 | 3721 | rcu_assign_pointer(mvm->csa_vif, vif); |
7ef0aab6 | 3722 | |
7ef0aab6 AO |
3723 | if (WARN_ONCE(mvmvif->csa_countdown, |
3724 | "Previous CSA countdown didn't complete")) { | |
3725 | ret = -EBUSY; | |
3726 | goto out_unlock; | |
3727 | } | |
3728 | ||
d3a108a4 AO |
3729 | mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; |
3730 | ||
6b20d774 | 3731 | break; |
dc88b4ba | 3732 | case NL80211_IFTYPE_STATION: |
03098268 AE |
3733 | if (mvmvif->lqm_active) |
3734 | iwl_mvm_send_lqm_cmd(vif, | |
3735 | LQM_CMD_OPERATION_STOP_MEASUREMENT, | |
3736 | 0, 0); | |
3737 | ||
4500e133 LC |
3738 | /* Schedule the time event to a bit before beacon 1, |
3739 | * to make sure we're in the new channel when the | |
3740 | * GO/AP arrives. | |
3741 | */ | |
3742 | apply_time = chsw->device_timestamp + | |
3743 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3744 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3745 | |
3746 | if (chsw->block_tx) | |
3747 | iwl_mvm_csa_client_absent(mvm, vif); | |
3748 | ||
4500e133 | 3749 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3750 | apply_time); |
c6e0a3e0 LC |
3751 | if (mvmvif->bf_data.bf_enabled) { |
3752 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3753 | if (ret) | |
3754 | goto out_unlock; | |
3755 | } | |
3756 | ||
dc88b4ba | 3757 | break; |
6b20d774 LC |
3758 | default: |
3759 | break; | |
3760 | } | |
bd3398e2 | 3761 | |
f6c34820 LC |
3762 | mvmvif->ps_disabled = true; |
3763 | ||
3764 | ret = iwl_mvm_power_update_ps(mvm); | |
3765 | if (ret) | |
3766 | goto out_unlock; | |
f028905c | 3767 | |
e198f5e7 AN |
3768 | /* we won't be on this channel any longer */ |
3769 | iwl_mvm_teardown_tdls_peers(mvm); | |
3770 | ||
bd3398e2 AO |
3771 | out_unlock: |
3772 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3773 | |
3774 | return ret; | |
bd3398e2 AO |
3775 | } |
3776 | ||
f6c34820 LC |
3777 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3778 | struct ieee80211_vif *vif) | |
3779 | { | |
3780 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3781 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3782 | int ret; | |
3783 | ||
3784 | mutex_lock(&mvm->mutex); | |
3785 | ||
81d62d5a JB |
3786 | if (mvmvif->csa_failed) { |
3787 | mvmvif->csa_failed = false; | |
3788 | ret = -EIO; | |
3789 | goto out_unlock; | |
3790 | } | |
3791 | ||
a57c688d LC |
3792 | if (vif->type == NL80211_IFTYPE_STATION) { |
3793 | struct iwl_mvm_sta *mvmsta; | |
3794 | ||
3795 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3796 | mvmvif->ap_sta_id); | |
3797 | ||
3798 | if (WARN_ON(!mvmsta)) { | |
3799 | ret = -EIO; | |
3800 | goto out_unlock; | |
3801 | } | |
3802 | ||
3803 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
3804 | ||
3805 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
3806 | |
3807 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
3808 | if (ret) | |
3809 | goto out_unlock; | |
686e7fe1 LC |
3810 | |
3811 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
3812 | } |
3813 | ||
f6c34820 LC |
3814 | mvmvif->ps_disabled = false; |
3815 | ||
3816 | ret = iwl_mvm_power_update_ps(mvm); | |
3817 | ||
a57c688d | 3818 | out_unlock: |
f6c34820 LC |
3819 | mutex_unlock(&mvm->mutex); |
3820 | ||
3821 | return ret; | |
3822 | } | |
3823 | ||
c5b0e7c0 EG |
3824 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
3825 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
3826 | { | |
3827 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3828 | struct iwl_mvm_vif *mvmvif; | |
3829 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
3830 | struct ieee80211_sta *sta; |
3831 | int i; | |
3832 | u32 msk = 0; | |
c5b0e7c0 EG |
3833 | |
3834 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
3835 | return; | |
3836 | ||
24afba76 LK |
3837 | /* Make sure we're done with the deferred traffic before flushing */ |
3838 | if (iwl_mvm_is_dqa_supported(mvm)) | |
3839 | flush_work(&mvm->add_stream_wk); | |
3840 | ||
c5b0e7c0 EG |
3841 | mutex_lock(&mvm->mutex); |
3842 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 3843 | |
a0f6bf2a AN |
3844 | /* flush the AP-station and all TDLS peers */ |
3845 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
3846 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
3847 | lockdep_is_held(&mvm->mutex)); | |
3848 | if (IS_ERR_OR_NULL(sta)) | |
3849 | continue; | |
3850 | ||
3851 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3852 | if (mvmsta->vif != vif) | |
3853 | continue; | |
3854 | ||
3855 | /* make sure only TDLS peers or the AP are flushed */ | |
3856 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
3857 | ||
3858 | msk |= mvmsta->tfd_queue_msk; | |
480acbce | 3859 | } |
c5b0e7c0 | 3860 | |
6d440b25 | 3861 | if (drop) { |
5888a40c | 3862 | if (iwl_mvm_flush_tx_path(mvm, msk, 0)) |
6d440b25 EG |
3863 | IWL_ERR(mvm, "flush request fail\n"); |
3864 | mutex_unlock(&mvm->mutex); | |
3865 | } else { | |
3866 | mutex_unlock(&mvm->mutex); | |
4e6c48e0 | 3867 | |
6d440b25 EG |
3868 | /* this can take a while, and we may need/want other operations |
3869 | * to succeed while doing this, so do it without the mutex held | |
3870 | */ | |
3871 | iwl_trans_wait_tx_queue_empty(mvm->trans, msk); | |
3872 | } | |
c5b0e7c0 EG |
3873 | } |
3874 | ||
91a8bcde JB |
3875 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
3876 | struct survey_info *survey) | |
3877 | { | |
3878 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3879 | int ret; | |
3880 | ||
3881 | memset(survey, 0, sizeof(*survey)); | |
3882 | ||
3883 | /* only support global statistics right now */ | |
3884 | if (idx != 0) | |
3885 | return -ENOENT; | |
3886 | ||
859d914c | 3887 | if (fw_has_capa(&mvm->fw->ucode_capa, |
91a8bcde JB |
3888 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) |
3889 | return -ENOENT; | |
3890 | ||
3891 | mutex_lock(&mvm->mutex); | |
3892 | ||
3893 | if (mvm->ucode_loaded) { | |
33cef925 | 3894 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
3895 | if (ret) |
3896 | goto out; | |
3897 | } | |
3898 | ||
3899 | survey->filled = SURVEY_INFO_TIME | | |
3900 | SURVEY_INFO_TIME_RX | | |
3901 | SURVEY_INFO_TIME_TX | | |
3902 | SURVEY_INFO_TIME_SCAN; | |
3903 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
3904 | mvm->radio_stats.on_time_rf; | |
3905 | do_div(survey->time, USEC_PER_MSEC); | |
3906 | ||
3907 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
3908 | mvm->radio_stats.rx_time; | |
3909 | do_div(survey->time_rx, USEC_PER_MSEC); | |
3910 | ||
3911 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
3912 | mvm->radio_stats.tx_time; | |
3913 | do_div(survey->time_tx, USEC_PER_MSEC); | |
3914 | ||
3915 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
3916 | mvm->radio_stats.on_time_scan; | |
3917 | do_div(survey->time_scan, USEC_PER_MSEC); | |
3918 | ||
10a7c028 | 3919 | ret = 0; |
91a8bcde JB |
3920 | out: |
3921 | mutex_unlock(&mvm->mutex); | |
3922 | return ret; | |
3923 | } | |
3924 | ||
33cef925 JB |
3925 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
3926 | struct ieee80211_vif *vif, | |
3927 | struct ieee80211_sta *sta, | |
3928 | struct station_info *sinfo) | |
3929 | { | |
3930 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3931 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3932 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3933 | ||
988b5968 SS |
3934 | if (mvmsta->avg_energy) { |
3935 | sinfo->signal_avg = mvmsta->avg_energy; | |
3936 | sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG); | |
3937 | } | |
3938 | ||
859d914c JB |
3939 | if (fw_has_capa(&mvm->fw->ucode_capa, |
3940 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
33cef925 JB |
3941 | return; |
3942 | ||
3943 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
3944 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
3945 | return; | |
3946 | ||
3947 | if (!vif->bss_conf.assoc) | |
3948 | return; | |
3949 | ||
3950 | mutex_lock(&mvm->mutex); | |
3951 | ||
3952 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
3953 | goto unlock; | |
3954 | ||
3955 | if (iwl_mvm_request_statistics(mvm, false)) | |
3956 | goto unlock; | |
3957 | ||
3958 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
3959 | mvmvif->beacon_stats.accu_num_beacons; | |
3960 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
3961 | if (mvmvif->beacon_stats.avg_signal) { | |
3962 | /* firmware only reports a value after RXing a few beacons */ | |
3963 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
3964 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
3965 | } | |
3966 | unlock: | |
3967 | mutex_unlock(&mvm->mutex); | |
3968 | } | |
3969 | ||
4203263d EG |
3970 | static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, |
3971 | struct ieee80211_vif *vif, | |
3972 | const struct ieee80211_event *event) | |
d42f5350 | 3973 | { |
5d4f929e | 3974 | #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ |
d42f5350 EG |
3975 | do { \ |
3976 | if ((_cnt) && --(_cnt)) \ | |
3977 | break; \ | |
5d4f929e | 3978 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ |
d42f5350 EG |
3979 | } while (0) |
3980 | ||
d42f5350 EG |
3981 | struct iwl_fw_dbg_trigger_tlv *trig; |
3982 | struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
d42f5350 EG |
3983 | |
3984 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) | |
3985 | return; | |
3986 | ||
d42f5350 EG |
3987 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); |
3988 | trig_mlme = (void *)trig->data; | |
3989 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
3990 | return; | |
3991 | ||
d42f5350 EG |
3992 | if (event->u.mlme.data == ASSOC_EVENT) { |
3993 | if (event->u.mlme.status == MLME_DENIED) | |
3994 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3995 | trig_mlme->stop_assoc_denied, | |
3996 | "DENIED ASSOC: reason %d", | |
3997 | event->u.mlme.reason); | |
3998 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
3999 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4000 | trig_mlme->stop_assoc_timeout, | |
4001 | "ASSOC TIMEOUT"); | |
4002 | } else if (event->u.mlme.data == AUTH_EVENT) { | |
4003 | if (event->u.mlme.status == MLME_DENIED) | |
4004 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4005 | trig_mlme->stop_auth_denied, | |
4006 | "DENIED AUTH: reason %d", | |
4007 | event->u.mlme.reason); | |
4008 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4009 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4010 | trig_mlme->stop_auth_timeout, | |
4011 | "AUTH TIMEOUT"); | |
4012 | } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { | |
4013 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4014 | trig_mlme->stop_rx_deauth, | |
4015 | "DEAUTH RX %d", event->u.mlme.reason); | |
4016 | } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { | |
4017 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4018 | trig_mlme->stop_tx_deauth, | |
4019 | "DEAUTH TX %d", event->u.mlme.reason); | |
4020 | } | |
4021 | #undef CHECK_MLME_TRIGGER | |
4022 | } | |
4023 | ||
4203263d EG |
4024 | static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, |
4025 | struct ieee80211_vif *vif, | |
4026 | const struct ieee80211_event *event) | |
4027 | { | |
4028 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4029 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4030 | ||
4031 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4032 | return; | |
4033 | ||
4034 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4035 | ba_trig = (void *)trig->data; | |
4036 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4037 | return; | |
4038 | ||
4039 | if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) | |
4040 | return; | |
4041 | ||
4042 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4043 | "BAR received from %pM, tid %d, ssn %d", | |
4044 | event->u.ba.sta->addr, event->u.ba.tid, | |
4045 | event->u.ba.ssn); | |
4046 | } | |
4047 | ||
4048 | static void | |
4049 | iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, | |
4050 | struct ieee80211_vif *vif, | |
4051 | const struct ieee80211_event *event) | |
4052 | { | |
4053 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4054 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4055 | ||
4056 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4057 | return; | |
4058 | ||
4059 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4060 | ba_trig = (void *)trig->data; | |
4061 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4062 | return; | |
4063 | ||
4064 | if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) | |
4065 | return; | |
4066 | ||
4067 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4068 | "Frame from %pM timed out, tid %d", | |
4069 | event->u.ba.sta->addr, event->u.ba.tid); | |
4070 | } | |
4071 | ||
4072 | static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, | |
4073 | struct ieee80211_vif *vif, | |
4074 | const struct ieee80211_event *event) | |
4075 | { | |
4076 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4077 | ||
4078 | switch (event->type) { | |
4079 | case MLME_EVENT: | |
4080 | iwl_mvm_event_mlme_callback(mvm, vif, event); | |
4081 | break; | |
4082 | case BAR_RX_EVENT: | |
4083 | iwl_mvm_event_bar_rx_callback(mvm, vif, event); | |
4084 | break; | |
4085 | case BA_FRAME_TIMEOUT: | |
4086 | iwl_mvm_event_frame_timeout_callback(mvm, vif, event); | |
4087 | break; | |
4088 | default: | |
4089 | break; | |
4090 | } | |
4091 | } | |
4092 | ||
d0ff5d22 SS |
4093 | void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, |
4094 | struct iwl_mvm_internal_rxq_notif *notif, | |
4095 | u32 size) | |
0636b938 | 4096 | { |
0636b938 SS |
4097 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq); |
4098 | u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; | |
4099 | int ret; | |
4100 | ||
4101 | lockdep_assert_held(&mvm->mutex); | |
4102 | ||
4103 | if (!iwl_mvm_has_new_rx_api(mvm)) | |
4104 | return; | |
4105 | ||
d0ff5d22 SS |
4106 | notif->cookie = mvm->queue_sync_cookie; |
4107 | ||
4108 | if (notif->sync) | |
4109 | atomic_set(&mvm->queue_sync_counter, | |
4110 | mvm->trans->num_rx_queues); | |
0636b938 | 4111 | |
d0ff5d22 | 4112 | ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size); |
0636b938 SS |
4113 | if (ret) { |
4114 | IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); | |
4115 | goto out; | |
4116 | } | |
d0ff5d22 SS |
4117 | |
4118 | if (notif->sync) | |
4119 | ret = wait_event_timeout(notif_waitq, | |
4120 | atomic_read(&mvm->queue_sync_counter) == 0, | |
4121 | HZ); | |
0636b938 SS |
4122 | WARN_ON_ONCE(!ret); |
4123 | ||
4124 | out: | |
4125 | atomic_set(&mvm->queue_sync_counter, 0); | |
4126 | mvm->queue_sync_cookie++; | |
4127 | } | |
4128 | ||
4129 | static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) | |
4130 | { | |
4131 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
d0ff5d22 SS |
4132 | struct iwl_mvm_internal_rxq_notif data = { |
4133 | .type = IWL_MVM_RXQ_EMPTY, | |
4134 | .sync = 1, | |
4135 | }; | |
0636b938 SS |
4136 | |
4137 | mutex_lock(&mvm->mutex); | |
d0ff5d22 | 4138 | iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); |
0636b938 SS |
4139 | mutex_unlock(&mvm->mutex); |
4140 | } | |
4141 | ||
e5209263 | 4142 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
4143 | .tx = iwl_mvm_mac_tx, |
4144 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
4145 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 4146 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
4147 | .stop = iwl_mvm_mac_stop, |
4148 | .add_interface = iwl_mvm_mac_add_interface, | |
4149 | .remove_interface = iwl_mvm_mac_remove_interface, | |
4150 | .config = iwl_mvm_mac_config, | |
e59647ea | 4151 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 | 4152 | .configure_filter = iwl_mvm_configure_filter, |
effd1929 | 4153 | .config_iface_filter = iwl_mvm_config_iface_filter, |
8ca151b5 JB |
4154 | .bss_info_changed = iwl_mvm_bss_info_changed, |
4155 | .hw_scan = iwl_mvm_mac_hw_scan, | |
4156 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 4157 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
4158 | .sta_state = iwl_mvm_mac_sta_state, |
4159 | .sta_notify = iwl_mvm_mac_sta_notify, | |
4160 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 4161 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 4162 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 4163 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
4164 | .conf_tx = iwl_mvm_mac_conf_tx, |
4165 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 4166 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 4167 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
4168 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
4169 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
4170 | .set_key = iwl_mvm_mac_set_key, |
4171 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
4172 | .remain_on_channel = iwl_mvm_roc, | |
4173 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
4174 | .add_chanctx = iwl_mvm_add_chanctx, |
4175 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
4176 | .change_chanctx = iwl_mvm_change_chanctx, | |
4177 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
4178 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 4179 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 4180 | |
5023d966 JB |
4181 | .start_ap = iwl_mvm_start_ap_ibss, |
4182 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
4183 | .join_ibss = iwl_mvm_start_ap_ibss, | |
4184 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
4185 | |
4186 | .set_tim = iwl_mvm_set_tim, | |
4187 | ||
622e3f9b | 4188 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 4189 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 4190 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 4191 | |
1d3c3f63 AN |
4192 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
4193 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
4194 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
4195 | ||
d42f5350 EG |
4196 | .event_callback = iwl_mvm_mac_event_callback, |
4197 | ||
0636b938 SS |
4198 | .sync_rx_queues = iwl_mvm_sync_rx_queues, |
4199 | ||
507cadf2 DS |
4200 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
4201 | ||
8ca151b5 JB |
4202 | #ifdef CONFIG_PM_SLEEP |
4203 | /* look at d3.c */ | |
4204 | .suspend = iwl_mvm_suspend, | |
4205 | .resume = iwl_mvm_resume, | |
4206 | .set_wakeup = iwl_mvm_set_wakeup, | |
4207 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
4208 | #if IS_ENABLED(CONFIG_IPV6) | |
4209 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
4210 | #endif | |
4211 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
4212 | #endif | |
91a8bcde | 4213 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 4214 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
8ca151b5 | 4215 | }; |