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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 | |
8e160ab8 | 468 | BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); |
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 | ||
4b87e5af LC |
482 | /* Enable 11w if software crypto is not enabled (as the |
483 | * firmware will interpret some mgmt packets, so enabling it | |
484 | * with software crypto isn't safe). | |
8ca151b5 | 485 | */ |
4b87e5af | 486 | if (!iwlwifi_mod_params.sw_crypto) { |
30686bf7 | 487 | ieee80211_hw_set(hw, MFP_CAPABLE); |
5f4c02e2 JB |
488 | mvm->ciphers[hw->wiphy->n_cipher_suites] = |
489 | WLAN_CIPHER_SUITE_AES_CMAC; | |
490 | hw->wiphy->n_cipher_suites++; | |
8e160ab8 AB |
491 | if (iwl_mvm_has_new_rx_api(mvm)) { |
492 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
493 | WLAN_CIPHER_SUITE_BIP_GMAC_128; | |
494 | hw->wiphy->n_cipher_suites++; | |
495 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
496 | WLAN_CIPHER_SUITE_BIP_GMAC_256; | |
497 | hw->wiphy->n_cipher_suites++; | |
498 | } | |
5f4c02e2 JB |
499 | } |
500 | ||
501 | /* currently FW API supports only one optional cipher scheme */ | |
502 | if (mvm->fw->cs[0].cipher) { | |
24ddddf3 JB |
503 | const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; |
504 | struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; | |
505 | ||
5f4c02e2 | 506 | mvm->hw->n_cipher_schemes = 1; |
24ddddf3 JB |
507 | |
508 | cs->cipher = le32_to_cpu(fwcs->cipher); | |
509 | cs->iftype = BIT(NL80211_IFTYPE_STATION); | |
510 | cs->hdr_len = fwcs->hdr_len; | |
511 | cs->pn_len = fwcs->pn_len; | |
512 | cs->pn_off = fwcs->pn_off; | |
513 | cs->key_idx_off = fwcs->key_idx_off; | |
514 | cs->key_idx_mask = fwcs->key_idx_mask; | |
515 | cs->key_idx_shift = fwcs->key_idx_shift; | |
516 | cs->mic_len = fwcs->mic_len; | |
517 | ||
518 | mvm->hw->cipher_schemes = mvm->cs; | |
519 | mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; | |
5f4c02e2 JB |
520 | hw->wiphy->n_cipher_suites++; |
521 | } | |
8ca151b5 | 522 | |
30686bf7 | 523 | ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); |
1f940386 LC |
524 | hw->wiphy->features |= |
525 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
3db93420 JB |
526 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | |
527 | NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
fb98be5e | 528 | |
8ca151b5 JB |
529 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
530 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 531 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
532 | |
533 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
534 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
535 | BIT(NL80211_IFTYPE_AP) | | |
536 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
537 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
538 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 539 | |
a2f73b6c | 540 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
541 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
542 | if (iwl_mvm_is_lar_supported(mvm)) | |
543 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
544 | else | |
545 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
546 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 547 | |
4b87e5af | 548 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; |
94bbed72 | 549 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 550 | |
8ca151b5 JB |
551 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
552 | hw->wiphy->n_iface_combinations = | |
553 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
554 | ||
c451e6d4 | 555 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 556 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
557 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
558 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
559 | |
560 | /* Extract MAC address */ | |
561 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
562 | hw->wiphy->addresses = mvm->addresses; | |
563 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
564 | |
565 | /* Extract additional MAC addresses if available */ | |
566 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
567 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
568 | ||
569 | for (i = 1; i < num_mac; i++) { | |
570 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 571 | ETH_ALEN); |
831e85f3 | 572 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
573 | hw->wiphy->n_addresses++; |
574 | } | |
575 | ||
fe0f2de3 IP |
576 | iwl_mvm_reset_phy_ctxts(mvm); |
577 | ||
999d2568 | 578 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
20f1a5de | 579 | |
8ca151b5 JB |
580 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
581 | ||
c7d42480 | 582 | BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); |
507e4cda LC |
583 | BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || |
584 | IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); | |
585 | ||
859d914c | 586 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
507e4cda LC |
587 | mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; |
588 | else | |
589 | mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; | |
590 | ||
57fbcce3 JB |
591 | if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) |
592 | hw->wiphy->bands[NL80211_BAND_2GHZ] = | |
593 | &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; | |
594 | if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { | |
595 | hw->wiphy->bands[NL80211_BAND_5GHZ] = | |
596 | &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; | |
8ca151b5 | 597 | |
859d914c JB |
598 | if (fw_has_capa(&mvm->fw->ucode_capa, |
599 | IWL_UCODE_TLV_CAPA_BEAMFORMER) && | |
600 | fw_has_api(&mvm->fw->ucode_capa, | |
601 | IWL_UCODE_TLV_API_LQ_SS_PARAMS)) | |
57fbcce3 | 602 | hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= |
3d44eebf ES |
603 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; |
604 | } | |
605 | ||
8ca151b5 JB |
606 | hw->wiphy->hw_version = mvm->trans->hw_id; |
607 | ||
ade50652 | 608 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
609 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
610 | else | |
611 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
612 | ||
9954b37c EG |
613 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
614 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
615 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
616 | /* we create the 802.11 header and zero length SSID IE. */ | |
617 | hw->wiphy->max_sched_scan_ie_len = | |
618 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
cd55ccea AS |
619 | hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; |
620 | hw->wiphy->max_sched_scan_plan_interval = U16_MAX; | |
621 | ||
622 | /* | |
623 | * the firmware uses u8 for num of iterations, but 0xff is saved for | |
624 | * infinite loop, so the maximum number of iterations is actually 254. | |
625 | */ | |
626 | hw->wiphy->max_sched_scan_plan_iterations = 254; | |
35a000b7 | 627 | |
8ca151b5 | 628 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 629 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 | 630 | NL80211_FEATURE_P2P_GO_OPPPS | |
a904a08b | 631 | NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | |
0d8614b4 | 632 | NL80211_FEATURE_DYNAMIC_SMPS | |
9b5452fd EG |
633 | NL80211_FEATURE_STATIC_SMPS | |
634 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 635 | |
859d914c JB |
636 | if (fw_has_capa(&mvm->fw->ucode_capa, |
637 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) | |
f1daa00e | 638 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; |
859d914c JB |
639 | if (fw_has_capa(&mvm->fw->ucode_capa, |
640 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) | |
226bcd48 | 641 | hw->wiphy->features |= NL80211_FEATURE_QUIET; |
f1daa00e | 642 | |
859d914c JB |
643 | if (fw_has_capa(&mvm->fw->ucode_capa, |
644 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) | |
73897bd1 AO |
645 | hw->wiphy->features |= |
646 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
647 | ||
859d914c JB |
648 | if (fw_has_capa(&mvm->fw->ucode_capa, |
649 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) | |
73897bd1 AO |
650 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; |
651 | ||
aacf8f18 AS |
652 | if (fw_has_api(&mvm->fw->ucode_capa, |
653 | IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { | |
654 | wiphy_ext_feature_set(hw->wiphy, | |
655 | NL80211_EXT_FEATURE_SCAN_START_TIME); | |
656 | wiphy_ext_feature_set(hw->wiphy, | |
657 | NL80211_EXT_FEATURE_BSS_PARENT_TSF); | |
658 | wiphy_ext_feature_set(hw->wiphy, | |
659 | NL80211_EXT_FEATURE_SET_SCAN_DWELL); | |
660 | } | |
661 | ||
8ca151b5 JB |
662 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
663 | ||
664 | #ifdef CONFIG_PM_SLEEP | |
d15a747f EP |
665 | if (iwl_mvm_is_d0i3_supported(mvm) && |
666 | device_can_wakeup(mvm->trans->dev)) { | |
667 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
668 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
669 | } |
670 | ||
671 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
672 | mvm->trans->ops->d3_suspend && |
673 | mvm->trans->ops->d3_resume && | |
674 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
675 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
676 | WIPHY_WOWLAN_DISCONNECT | | |
677 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
678 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
679 | WIPHY_WOWLAN_NET_DETECT; | |
8ca151b5 | 680 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
681 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
682 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
683 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
684 | ||
685 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
686 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
687 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 688 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 JB |
689 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
690 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
691 | } |
692 | #endif | |
693 | ||
77736923 EP |
694 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
695 | /* assign default bcast filtering configuration */ | |
696 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
697 | #endif | |
698 | ||
8ca151b5 JB |
699 | ret = iwl_mvm_leds_init(mvm); |
700 | if (ret) | |
701 | return ret; | |
702 | ||
859d914c JB |
703 | if (fw_has_capa(&mvm->fw->ucode_capa, |
704 | IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { | |
d8f1c515 AN |
705 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); |
706 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
7c4f0843 | 707 | ieee80211_hw_set(hw, TDLS_WIDER_BW); |
d8f1c515 AN |
708 | } |
709 | ||
859d914c JB |
710 | if (fw_has_capa(&mvm->fw->ucode_capa, |
711 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { | |
1d3c3f63 AN |
712 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); |
713 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
714 | } | |
715 | ||
93190fb0 | 716 | hw->netdev_features |= mvm->cfg->features; |
5e6a98dc SS |
717 | if (!iwl_mvm_is_csum_supported(mvm)) { |
718 | hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | | |
719 | NETIF_F_RXCSUM); | |
720 | /* We may support SW TX CSUM */ | |
721 | if (IWL_MVM_SW_TX_CSUM_OFFLOAD) | |
722 | hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; | |
723 | } | |
41837ca9 | 724 | |
b7327d89 EG |
725 | ret = ieee80211_register_hw(mvm->hw); |
726 | if (ret) | |
727 | iwl_mvm_leds_exit(mvm); | |
728 | ||
91b08c2d AE |
729 | if (mvm->cfg->vht_mu_mimo_supported) |
730 | wiphy_ext_feature_set(hw->wiphy, | |
731 | NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); | |
732 | ||
b7327d89 | 733 | return ret; |
8ca151b5 JB |
734 | } |
735 | ||
b2492501 AN |
736 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
737 | struct ieee80211_sta *sta, | |
738 | struct sk_buff *skb) | |
739 | { | |
740 | struct iwl_mvm_sta *mvmsta; | |
741 | bool defer = false; | |
742 | ||
743 | /* | |
744 | * double check the IN_D0I3 flag both before and after | |
745 | * taking the spinlock, in order to prevent taking | |
746 | * the spinlock when not needed. | |
747 | */ | |
748 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
749 | return false; | |
750 | ||
751 | spin_lock(&mvm->d0i3_tx_lock); | |
752 | /* | |
753 | * testing the flag again ensures the skb dequeue | |
754 | * loop (on d0i3 exit) hasn't run yet. | |
755 | */ | |
756 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
757 | goto out; | |
758 | ||
759 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
760 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
761 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
762 | goto out; | |
763 | ||
764 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
765 | ieee80211_stop_queues(mvm->hw); | |
766 | ||
767 | /* trigger wakeup */ | |
768 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
769 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
770 | ||
771 | defer = true; | |
772 | out: | |
773 | spin_unlock(&mvm->d0i3_tx_lock); | |
774 | return defer; | |
775 | } | |
776 | ||
8ca151b5 JB |
777 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
778 | struct ieee80211_tx_control *control, | |
779 | struct sk_buff *skb) | |
780 | { | |
781 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
782 | struct ieee80211_sta *sta = control->sta; |
783 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
784 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 785 | |
9ee718aa EL |
786 | if (iwl_mvm_is_radio_killed(mvm)) { |
787 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
788 | goto drop; |
789 | } | |
790 | ||
398e8c6c | 791 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
792 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
793 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
794 | goto drop; |
795 | ||
3e56eadf JB |
796 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
797 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
798 | ieee80211_is_mgmt(hdr->frame_control) && | |
799 | !ieee80211_is_deauth(hdr->frame_control) && | |
800 | !ieee80211_is_disassoc(hdr->frame_control) && | |
801 | !ieee80211_is_action(hdr->frame_control))) | |
802 | sta = NULL; | |
803 | ||
804 | if (sta) { | |
b2492501 AN |
805 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
806 | return; | |
3e56eadf | 807 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
808 | goto drop; |
809 | return; | |
810 | } | |
811 | ||
812 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
813 | goto drop; | |
814 | return; | |
815 | drop: | |
816 | ieee80211_free_txskb(hw, skb); | |
817 | } | |
818 | ||
205e2210 EG |
819 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
820 | { | |
821 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
822 | return false; | |
823 | return true; | |
824 | } | |
825 | ||
826 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
827 | { | |
828 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
829 | return false; | |
830 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
831 | return true; | |
832 | ||
833 | /* enabled by default */ | |
834 | return true; | |
835 | } | |
836 | ||
4203263d EG |
837 | #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ |
838 | do { \ | |
839 | if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ | |
840 | break; \ | |
841 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ | |
842 | } while (0) | |
843 | ||
844 | static void | |
845 | iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
846 | struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, | |
847 | enum ieee80211_ampdu_mlme_action action) | |
848 | { | |
849 | struct iwl_fw_dbg_trigger_tlv *trig; | |
850 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
851 | ||
852 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
853 | return; | |
854 | ||
855 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
856 | ba_trig = (void *)trig->data; | |
857 | ||
858 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
859 | return; | |
860 | ||
861 | switch (action) { | |
862 | case IEEE80211_AMPDU_TX_OPERATIONAL: { | |
863 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
864 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
865 | ||
866 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, | |
867 | "TX AGG START: MAC %pM tid %d ssn %d\n", | |
868 | sta->addr, tid, tid_data->ssn); | |
869 | break; | |
870 | } | |
871 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
872 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, | |
873 | "TX AGG STOP: MAC %pM tid %d\n", | |
874 | sta->addr, tid); | |
875 | break; | |
876 | case IEEE80211_AMPDU_RX_START: | |
877 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, | |
878 | "RX AGG START: MAC %pM tid %d ssn %d\n", | |
879 | sta->addr, tid, rx_ba_ssn); | |
880 | break; | |
881 | case IEEE80211_AMPDU_RX_STOP: | |
882 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, | |
883 | "RX AGG STOP: MAC %pM tid %d\n", | |
884 | sta->addr, tid); | |
885 | break; | |
886 | default: | |
887 | break; | |
888 | } | |
889 | } | |
890 | ||
8ca151b5 JB |
891 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
892 | struct ieee80211_vif *vif, | |
50ea05ef | 893 | struct ieee80211_ampdu_params *params) |
8ca151b5 JB |
894 | { |
895 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
896 | int ret; | |
b2492501 | 897 | bool tx_agg_ref = false; |
50ea05ef SS |
898 | struct ieee80211_sta *sta = params->sta; |
899 | enum ieee80211_ampdu_mlme_action action = params->action; | |
900 | u16 tid = params->tid; | |
901 | u16 *ssn = ¶ms->ssn; | |
902 | u8 buf_size = params->buf_size; | |
bb81bb68 | 903 | bool amsdu = params->amsdu; |
10b2b201 | 904 | u16 timeout = params->timeout; |
8ca151b5 JB |
905 | |
906 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
907 | sta->addr, tid, action); | |
908 | ||
909 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
910 | return -EACCES; | |
911 | ||
b2492501 | 912 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
913 | switch (action) { |
914 | case IEEE80211_AMPDU_TX_START: | |
915 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
916 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
917 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
918 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 919 | /* |
9256c205 EP |
920 | * for tx start, wait synchronously until D0i3 exit to |
921 | * get the correct sequence number for the tid. | |
922 | * additionally, some other ampdu actions use direct | |
923 | * target access, which is not handled automatically | |
924 | * by the trans layer (unlike commands), so wait for | |
925 | * d0i3 exit in these cases as well. | |
b2492501 | 926 | */ |
d40fc489 GG |
927 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
928 | if (ret) | |
929 | return ret; | |
930 | ||
931 | tx_agg_ref = true; | |
9256c205 EP |
932 | break; |
933 | default: | |
934 | break; | |
b2492501 AN |
935 | } |
936 | ||
8ca151b5 JB |
937 | mutex_lock(&mvm->mutex); |
938 | ||
939 | switch (action) { | |
940 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 941 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
942 | ret = -EINVAL; |
943 | break; | |
944 | } | |
10b2b201 SS |
945 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, |
946 | timeout); | |
8ca151b5 JB |
947 | break; |
948 | case IEEE80211_AMPDU_RX_STOP: | |
10b2b201 SS |
949 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, |
950 | timeout); | |
8ca151b5 JB |
951 | break; |
952 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 953 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
954 | ret = -EINVAL; |
955 | break; | |
956 | } | |
8ca151b5 JB |
957 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
958 | break; | |
959 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
960 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
961 | break; | |
8ca151b5 JB |
962 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
963 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 964 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
965 | break; |
966 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
bb81bb68 EG |
967 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, |
968 | buf_size, amsdu); | |
8ca151b5 JB |
969 | break; |
970 | default: | |
971 | WARN_ON_ONCE(1); | |
972 | ret = -EINVAL; | |
973 | break; | |
974 | } | |
4203263d EG |
975 | |
976 | if (!ret) { | |
977 | u16 rx_ba_ssn = 0; | |
978 | ||
979 | if (action == IEEE80211_AMPDU_RX_START) | |
980 | rx_ba_ssn = *ssn; | |
981 | ||
982 | iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, | |
983 | rx_ba_ssn, action); | |
984 | } | |
8ca151b5 JB |
985 | mutex_unlock(&mvm->mutex); |
986 | ||
b2492501 AN |
987 | /* |
988 | * If the tid is marked as started, we won't use it for offloaded | |
989 | * traffic on the next D0i3 entry. It's safe to unref. | |
990 | */ | |
991 | if (tx_agg_ref) | |
992 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
993 | ||
8ca151b5 JB |
994 | return ret; |
995 | } | |
996 | ||
997 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
998 | struct ieee80211_vif *vif) | |
999 | { | |
1000 | struct iwl_mvm *mvm = data; | |
1001 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1002 | ||
1003 | mvmvif->uploaded = false; | |
1004 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
1005 | ||
8ca151b5 JB |
1006 | spin_lock_bh(&mvm->time_event_lock); |
1007 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
1008 | spin_unlock_bh(&mvm->time_event_lock); | |
1009 | ||
fe0f2de3 | 1010 | mvmvif->phy_ctxt = NULL; |
8a275bad | 1011 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
1012 | } |
1013 | ||
1014 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
1015 | { | |
58629d9d JB |
1016 | /* clear the D3 reconfig, we only need it to avoid dumping a |
1017 | * firmware coredump on reconfiguration, we shouldn't do that | |
1018 | * on D3->D0 transition | |
1019 | */ | |
b6eaa45a EG |
1020 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
1021 | mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; | |
58629d9d | 1022 | iwl_mvm_fw_error_dump(mvm); |
b6eaa45a | 1023 | } |
1bd3cbc1 | 1024 | |
744cb695 EP |
1025 | /* cleanup all stale references (scan, roc), but keep the |
1026 | * ucode_down ref until reconfig is complete | |
1027 | */ | |
1028 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1029 | ||
fcb6b92a | 1030 | iwl_mvm_stop_device(mvm); |
8ca151b5 | 1031 | |
9af91f46 | 1032 | mvm->scan_status = 0; |
b1873300 | 1033 | mvm->ps_disabled = false; |
31b8b343 | 1034 | mvm->calibrating = false; |
8ca151b5 JB |
1035 | |
1036 | /* just in case one was running */ | |
305d236e | 1037 | iwl_mvm_cleanup_roc_te(mvm); |
8ca151b5 JB |
1038 | ieee80211_remain_on_channel_expired(mvm->hw); |
1039 | ||
737719fe AN |
1040 | /* |
1041 | * cleanup all interfaces, even inactive ones, as some might have | |
1042 | * gone down during the HW restart | |
1043 | */ | |
1044 | ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); | |
8ca151b5 | 1045 | |
fe0f2de3 | 1046 | mvm->p2p_device_vif = NULL; |
37577fe2 | 1047 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
1048 | |
1049 | iwl_mvm_reset_phy_ctxts(mvm); | |
9c3deeb5 | 1050 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
8ca151b5 | 1051 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); |
24afba76 | 1052 | memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames)); |
a0f6bf2a | 1053 | memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
8a275bad | 1054 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
8a275bad | 1055 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); |
8ca151b5 JB |
1056 | |
1057 | ieee80211_wake_queues(mvm->hw); | |
1058 | ||
228670b2 EP |
1059 | /* clear any stale d0i3 state */ |
1060 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1061 | ||
8ca151b5 | 1062 | mvm->vif_count = 0; |
113a0447 | 1063 | mvm->rx_ba_sessions = 0; |
d2709ad7 | 1064 | mvm->fw_dbg_conf = FW_DBG_INVALID; |
91a8bcde JB |
1065 | |
1066 | /* keep statistics ticking */ | |
1067 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1068 | } |
1069 | ||
a0a09243 | 1070 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1071 | { |
8ca151b5 JB |
1072 | int ret; |
1073 | ||
a0a09243 | 1074 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 1075 | |
a42b2af3 LC |
1076 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { |
1077 | /* Clean up some internal and mac80211 state on restart */ | |
8ca151b5 | 1078 | iwl_mvm_restart_cleanup(mvm); |
a42b2af3 LC |
1079 | } else { |
1080 | /* Hold the reference to prevent runtime suspend while | |
1081 | * the start procedure runs. It's a bit confusing | |
1082 | * that the UCODE_DOWN reference is taken, but it just | |
1083 | * means "UCODE is not UP yet". ( TODO: rename this | |
1084 | * reference). | |
1085 | */ | |
1086 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1087 | } | |
8ca151b5 | 1088 | ret = iwl_mvm_up(mvm); |
c47af22a JB |
1089 | |
1090 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1091 | /* Something went wrong - we need to finish some cleanup | |
1092 | * that normally iwl_mvm_mac_restart_complete() below | |
1093 | * would do. | |
1094 | */ | |
1095 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1096 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1097 | } | |
1098 | ||
a0a09243 LC |
1099 | return ret; |
1100 | } | |
1101 | ||
1102 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1103 | { | |
1104 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1105 | int ret; | |
1106 | ||
37948fcf EP |
1107 | /* Some hw restart cleanups must not hold the mutex */ |
1108 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1109 | /* | |
1110 | * Make sure we are out of d0i3. This is needed | |
1111 | * to make sure the reference accounting is correct | |
1112 | * (and there is no stale d0i3_exit_work). | |
1113 | */ | |
1114 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1115 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1116 | &mvm->status), | |
1117 | HZ); | |
1118 | } | |
1119 | ||
a0a09243 LC |
1120 | mutex_lock(&mvm->mutex); |
1121 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1122 | mutex_unlock(&mvm->mutex); |
1123 | ||
1124 | return ret; | |
1125 | } | |
1126 | ||
cf2c92d8 | 1127 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1128 | { |
8ca151b5 JB |
1129 | int ret; |
1130 | ||
1131 | mutex_lock(&mvm->mutex); | |
1132 | ||
1133 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1134 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
e7afe89f | 1135 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1136 | if (ret) |
1137 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1138 | ret); | |
1139 | ||
7498cf4c EP |
1140 | /* allow transport/FW low power modes */ |
1141 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1142 | ||
cbd2ae2d AN |
1143 | /* |
1144 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1145 | * of packets the FW sent out, so we must reconnect. | |
1146 | */ | |
1147 | iwl_mvm_teardown_tdls_peers(mvm); | |
1148 | ||
8ca151b5 JB |
1149 | mutex_unlock(&mvm->mutex); |
1150 | } | |
1151 | ||
088070a2 EP |
1152 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1153 | { | |
b7282643 LC |
1154 | if (iwl_mvm_is_d0i3_supported(mvm) && |
1155 | iwl_mvm_enter_d0i3_on_suspend(mvm)) | |
1156 | WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1157 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1158 | &mvm->status), | |
1159 | HZ), | |
1160 | "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1161 | } |
1162 | ||
cf2c92d8 EP |
1163 | static void |
1164 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1165 | enum ieee80211_reconfig_type reconfig_type) | |
1166 | { | |
1167 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1168 | ||
1169 | switch (reconfig_type) { | |
1170 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1171 | iwl_mvm_restart_complete(mvm); | |
1172 | break; | |
1173 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1174 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1175 | break; |
1176 | } | |
1177 | } | |
1178 | ||
a0a09243 | 1179 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1180 | { |
a0a09243 | 1181 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1182 | |
91a8bcde JB |
1183 | /* firmware counters are obviously reset now, but we shouldn't |
1184 | * partially track so also clear the fw_reset_accu counters. | |
1185 | */ | |
1186 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1187 | ||
8ca151b5 JB |
1188 | /* async_handlers_wk is now blocked */ |
1189 | ||
1190 | /* | |
1191 | * The work item could be running or queued if the | |
1192 | * ROC time event stops just as we get here. | |
1193 | */ | |
c779273b | 1194 | flush_work(&mvm->roc_done_wk); |
8ca151b5 | 1195 | |
fcb6b92a | 1196 | iwl_mvm_stop_device(mvm); |
8ca151b5 JB |
1197 | |
1198 | iwl_mvm_async_handlers_purge(mvm); | |
1199 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1200 | ||
1201 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1202 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1203 | |
7fdf9663 MG |
1204 | iwl_free_fw_paging(mvm); |
1205 | ||
0a79a0c0 EP |
1206 | /* |
1207 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1208 | * won't be called in this case). | |
8b2b9fbf AN |
1209 | * But make sure to cleanup interfaces that have gone down before/during |
1210 | * HW restart was requested. | |
0a79a0c0 | 1211 | */ |
8b2b9fbf AN |
1212 | if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
1213 | ieee80211_iterate_interfaces(mvm->hw, 0, | |
1214 | iwl_mvm_cleanup_iterator, mvm); | |
0a79a0c0 | 1215 | |
963221be AB |
1216 | /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
1217 | * make sure there's nothing left there and warn if any is found. | |
1218 | */ | |
859d914c | 1219 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
963221be AB |
1220 | int i; |
1221 | ||
507e4cda | 1222 | for (i = 0; i < mvm->max_scans; i++) { |
6185af2a LC |
1223 | if (WARN_ONCE(mvm->scan_uid_status[i], |
1224 | "UMAC scan UID %d status was not cleaned\n", | |
1225 | i)) | |
1226 | mvm->scan_uid_status[i] = 0; | |
963221be AB |
1227 | } |
1228 | } | |
a0a09243 | 1229 | } |
bc44886d | 1230 | |
a0a09243 LC |
1231 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1232 | { | |
1233 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1234 | ||
1235 | flush_work(&mvm->d0i3_exit_work); | |
1236 | flush_work(&mvm->async_handlers_wk); | |
24afba76 | 1237 | flush_work(&mvm->add_stream_wk); |
d2709ad7 | 1238 | cancel_delayed_work_sync(&mvm->fw_dump_wk); |
d3a108a4 | 1239 | cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); |
69e04642 | 1240 | cancel_delayed_work_sync(&mvm->scan_timeout_dwork); |
b6eaa45a | 1241 | iwl_mvm_free_fw_dump_desc(mvm); |
a0a09243 LC |
1242 | |
1243 | mutex_lock(&mvm->mutex); | |
1244 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1245 | mutex_unlock(&mvm->mutex); |
1246 | ||
1247 | /* | |
1248 | * The worker might have been waiting for the mutex, let it run and | |
1249 | * discover that its list is now empty. | |
1250 | */ | |
1251 | cancel_work_sync(&mvm->async_handlers_wk); | |
1252 | } | |
1253 | ||
fe0f2de3 IP |
1254 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1255 | { | |
1256 | u16 i; | |
1257 | ||
1258 | lockdep_assert_held(&mvm->mutex); | |
1259 | ||
1260 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1261 | if (!mvm->phy_ctxts[i].ref) | |
1262 | return &mvm->phy_ctxts[i]; | |
1263 | ||
1264 | IWL_ERR(mvm, "No available PHY context\n"); | |
1265 | return NULL; | |
1266 | } | |
1267 | ||
d44c3fe6 AA |
1268 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1269 | s16 tx_power) | |
1270 | { | |
1271 | struct iwl_dev_tx_power_cmd cmd = { | |
4b87e5af LC |
1272 | .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), |
1273 | .v3.mac_context_id = | |
d44c3fe6 | 1274 | cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), |
4b87e5af | 1275 | .v3.pwr_restriction = cpu_to_le16(8 * tx_power), |
d44c3fe6 | 1276 | }; |
da03f029 | 1277 | int len = sizeof(cmd); |
d44c3fe6 | 1278 | |
d44c3fe6 | 1279 | if (tx_power == IWL_DEFAULT_MAX_TX_POWER) |
4b87e5af | 1280 | cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); |
d44c3fe6 | 1281 | |
55bfa4b9 LC |
1282 | if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) |
1283 | len = sizeof(cmd.v3); | |
da03f029 JB |
1284 | |
1285 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); | |
d44c3fe6 AA |
1286 | } |
1287 | ||
8ca151b5 JB |
1288 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1289 | struct ieee80211_vif *vif) | |
1290 | { | |
1291 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1292 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1293 | int ret; | |
1294 | ||
aa5e1832 EG |
1295 | mvmvif->mvm = mvm; |
1296 | ||
d40fc489 GG |
1297 | /* |
1298 | * make sure D0i3 exit is completed, otherwise a target access | |
1299 | * during tx queue configuration could be done when still in | |
1300 | * D0i3 state. | |
1301 | */ | |
1302 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1303 | if (ret) | |
1304 | return ret; | |
1305 | ||
8ca151b5 JB |
1306 | /* |
1307 | * Not much to do here. The stack will not allow interface | |
1308 | * types or combinations that we didn't advertise, so we | |
1309 | * don't really have to check the types. | |
1310 | */ | |
1311 | ||
1312 | mutex_lock(&mvm->mutex); | |
1313 | ||
33cef925 JB |
1314 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1315 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1316 | mvmvif->beacon_stats.accu_num_beacons += | |
1317 | mvmvif->beacon_stats.num_beacons; | |
1318 | ||
e89044d7 | 1319 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1320 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1321 | if (ret) | |
1322 | goto out_unlock; | |
1323 | ||
1c2abf72 | 1324 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1325 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1326 | mvm->vif_count++; | |
ea183d02 | 1327 | |
8ca151b5 JB |
1328 | /* |
1329 | * The AP binding flow can be done only after the beacon | |
1330 | * template is configured (which happens only in the mac80211 | |
1331 | * start_ap() flow), and adding the broadcast station can happen | |
1332 | * only after the binding. | |
1333 | * In addition, since modifying the MAC before adding a bcast | |
1334 | * station is not allowed by the FW, delay the adding of MAC context to | |
1335 | * the point where we can also add the bcast station. | |
1336 | * In short: there's not much we can do at this point, other than | |
1337 | * allocating resources :) | |
1338 | */ | |
5023d966 JB |
1339 | if (vif->type == NL80211_IFTYPE_AP || |
1340 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1341 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1342 | if (ret) { |
1343 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1344 | goto out_release; | |
1345 | } | |
1346 | ||
77740cb4 | 1347 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1348 | goto out_unlock; |
1349 | } | |
1350 | ||
93190fb0 AA |
1351 | mvmvif->features |= hw->netdev_features; |
1352 | ||
8ca151b5 JB |
1353 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1354 | if (ret) | |
1355 | goto out_release; | |
1356 | ||
999609f1 | 1357 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1358 | if (ret) |
fd66fc1c | 1359 | goto out_remove_mac; |
8ca151b5 | 1360 | |
7df15b1e | 1361 | /* beacon filtering */ |
a1022927 | 1362 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1363 | if (ret) |
1364 | goto out_remove_mac; | |
1365 | ||
7df15b1e | 1366 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1367 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1368 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1369 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1370 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1371 | } |
1372 | ||
8ca151b5 JB |
1373 | /* |
1374 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1375 | * so a dedicated PHY context is allocated to it and the corresponding | |
1376 | * MAC context is bound to it at this stage. | |
1377 | */ | |
1378 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1379 | |
fe0f2de3 IP |
1380 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1381 | if (!mvmvif->phy_ctxt) { | |
1382 | ret = -ENOSPC; | |
bd3351ba | 1383 | goto out_free_bf; |
fe0f2de3 | 1384 | } |
8ca151b5 | 1385 | |
53a9d61e | 1386 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1387 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1388 | if (ret) | |
53a9d61e | 1389 | goto out_unref_phy; |
8ca151b5 | 1390 | |
013290aa | 1391 | ret = iwl_mvm_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
1392 | if (ret) |
1393 | goto out_unbind; | |
1394 | ||
1395 | /* Save a pointer to p2p device vif, so it can later be used to | |
1396 | * update the p2p device MAC when a GO is started/stopped */ | |
1397 | mvm->p2p_device_vif = vif; | |
1398 | } | |
1399 | ||
63494374 | 1400 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1401 | goto out_unlock; |
1402 | ||
1403 | out_unbind: | |
1404 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1405 | out_unref_phy: |
fe0f2de3 | 1406 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1407 | out_free_bf: |
1408 | if (mvm->bf_allowed_vif == mvmvif) { | |
1409 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1410 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1411 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1412 | } |
8ca151b5 JB |
1413 | out_remove_mac: |
1414 | mvmvif->phy_ctxt = NULL; | |
1415 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1416 | out_release: | |
5ee2b215 AB |
1417 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1418 | mvm->vif_count--; | |
1c2abf72 | 1419 | |
8ca151b5 JB |
1420 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1421 | out_unlock: | |
1422 | mutex_unlock(&mvm->mutex); | |
1423 | ||
d40fc489 GG |
1424 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1425 | ||
8ca151b5 JB |
1426 | return ret; |
1427 | } | |
1428 | ||
38a12b5b JB |
1429 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1430 | struct ieee80211_vif *vif) | |
8ca151b5 | 1431 | { |
d92b732e | 1432 | u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
8ca151b5 JB |
1433 | |
1434 | if (tfd_msk) { | |
fe92e32a EG |
1435 | /* |
1436 | * mac80211 first removes all the stations of the vif and | |
1437 | * then removes the vif. When it removes a station it also | |
1438 | * flushes the AMPDU session. So by now, all the AMPDU sessions | |
1439 | * of all the stations of this vif are closed, and the queues | |
1440 | * of these AMPDU sessions are properly closed. | |
1441 | * We still need to take care of the shared queues of the vif. | |
1442 | * Flush them here. | |
1443 | */ | |
8ca151b5 | 1444 | mutex_lock(&mvm->mutex); |
5888a40c | 1445 | iwl_mvm_flush_tx_path(mvm, tfd_msk, 0); |
8ca151b5 | 1446 | mutex_unlock(&mvm->mutex); |
fe92e32a EG |
1447 | |
1448 | /* | |
1449 | * There are transports that buffer a few frames in the host. | |
1450 | * For these, the flush above isn't enough since while we were | |
1451 | * flushing, the transport might have sent more frames to the | |
1452 | * device. To solve this, wait here until the transport is | |
1453 | * empty. Technically, this could have replaced the flush | |
1454 | * above, but flush is much faster than draining. So flush | |
1455 | * first, and drain to make sure we have no frames in the | |
1456 | * transport anymore. | |
1457 | * If a station still had frames on the shared queues, it is | |
1458 | * already marked as draining, so to complete the draining, we | |
1459 | * just need to wait until the transport is empty. | |
1460 | */ | |
1461 | iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); | |
8ca151b5 JB |
1462 | } |
1463 | ||
1464 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1465 | /* | |
1466 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1467 | * We assume here that all the packets sent to the OFFCHANNEL | |
1468 | * queue are sent in ROC session. | |
1469 | */ | |
1470 | flush_work(&mvm->roc_done_wk); | |
1471 | } else { | |
1472 | /* | |
1473 | * By now, all the AC queues are empty. The AGG queues are | |
1474 | * empty too. We already got all the Tx responses for all the | |
1475 | * packets in the queues. The drain work can have been | |
0742a75a | 1476 | * triggered. Flush it. |
8ca151b5 JB |
1477 | */ |
1478 | flush_work(&mvm->sta_drained_wk); | |
1479 | } | |
38a12b5b JB |
1480 | } |
1481 | ||
1482 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1483 | struct ieee80211_vif *vif) | |
1484 | { | |
1485 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1486 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1487 | ||
1488 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1489 | |
1490 | mutex_lock(&mvm->mutex); | |
1491 | ||
7df15b1e HG |
1492 | if (mvm->bf_allowed_vif == mvmvif) { |
1493 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1494 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1495 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1496 | } |
1497 | ||
63494374 JB |
1498 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1499 | ||
8ca151b5 JB |
1500 | /* |
1501 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1502 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1503 | */ |
5023d966 JB |
1504 | if (vif->type == NL80211_IFTYPE_AP || |
1505 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1506 | #ifdef CONFIG_NL80211_TESTMODE |
1507 | if (vif == mvm->noa_vif) { | |
1508 | mvm->noa_vif = NULL; | |
1509 | mvm->noa_duration = 0; | |
1510 | } | |
1511 | #endif | |
013290aa | 1512 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1513 | goto out_release; |
1514 | } | |
1515 | ||
1516 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1517 | mvm->p2p_device_vif = NULL; | |
013290aa | 1518 | iwl_mvm_rm_bcast_sta(mvm, vif); |
8ca151b5 | 1519 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1520 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1521 | mvmvif->phy_ctxt = NULL; |
1522 | } | |
1523 | ||
5ee2b215 | 1524 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1525 | mvm->vif_count--; |
1c2abf72 | 1526 | |
999609f1 | 1527 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1528 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1529 | ||
1530 | out_release: | |
1531 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1532 | mutex_unlock(&mvm->mutex); | |
1533 | } | |
1534 | ||
1535 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1536 | { |
8ca151b5 JB |
1537 | return 0; |
1538 | } | |
1539 | ||
e59647ea EP |
1540 | struct iwl_mvm_mc_iter_data { |
1541 | struct iwl_mvm *mvm; | |
1542 | int port_id; | |
1543 | }; | |
1544 | ||
1545 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1546 | struct ieee80211_vif *vif) | |
1547 | { | |
1548 | struct iwl_mvm_mc_iter_data *data = _data; | |
1549 | struct iwl_mvm *mvm = data->mvm; | |
1550 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1551 | int ret, len; | |
1552 | ||
1553 | /* if we don't have free ports, mcast frames will be dropped */ | |
1554 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1555 | return; | |
1556 | ||
1557 | if (vif->type != NL80211_IFTYPE_STATION || | |
1558 | !vif->bss_conf.assoc) | |
1559 | return; | |
1560 | ||
1561 | cmd->port_id = data->port_id++; | |
1562 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1563 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1564 | ||
1c4abec0 | 1565 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1566 | if (ret) |
1567 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1568 | } | |
1569 | ||
1570 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1571 | { | |
1572 | struct iwl_mvm_mc_iter_data iter_data = { | |
1573 | .mvm = mvm, | |
88f2fd73 MG |
1574 | }; |
1575 | ||
e59647ea EP |
1576 | lockdep_assert_held(&mvm->mutex); |
1577 | ||
1578 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1579 | return; | |
1580 | ||
1c4abec0 | 1581 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1582 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1583 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1584 | } |
1585 | ||
e59647ea EP |
1586 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1587 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1588 | { |
e59647ea EP |
1589 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1590 | struct iwl_mcast_filter_cmd *cmd; | |
1591 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1592 | int addr_count; |
1593 | bool pass_all; | |
e59647ea EP |
1594 | int len; |
1595 | ||
f3bd58f4 MS |
1596 | addr_count = netdev_hw_addr_list_count(mc_list); |
1597 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1598 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1599 | if (pass_all) | |
e59647ea | 1600 | addr_count = 0; |
e59647ea EP |
1601 | |
1602 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1603 | cmd = kzalloc(len, GFP_ATOMIC); | |
1604 | if (!cmd) | |
1605 | return 0; | |
1606 | ||
1607 | if (pass_all) { | |
1608 | cmd->pass_all = 1; | |
1609 | return (u64)(unsigned long)cmd; | |
1610 | } | |
1611 | ||
1612 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1613 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1614 | cmd->count, addr->addr); | |
1615 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1616 | addr->addr, ETH_ALEN); | |
1617 | cmd->count++; | |
1618 | } | |
1619 | ||
1620 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1621 | } |
1622 | ||
1623 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1624 | unsigned int changed_flags, | |
1625 | unsigned int *total_flags, | |
1626 | u64 multicast) | |
1627 | { | |
e59647ea EP |
1628 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1629 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1630 | |
e59647ea | 1631 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1632 | |
e59647ea EP |
1633 | /* replace previous configuration */ |
1634 | kfree(mvm->mcast_filter_cmd); | |
1635 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1636 | |
e59647ea EP |
1637 | if (!cmd) |
1638 | goto out; | |
51b6b9e0 | 1639 | |
e59647ea EP |
1640 | iwl_mvm_recalc_multicast(mvm); |
1641 | out: | |
1642 | mutex_unlock(&mvm->mutex); | |
1643 | *total_flags = 0; | |
51b6b9e0 EG |
1644 | } |
1645 | ||
effd1929 AO |
1646 | static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, |
1647 | struct ieee80211_vif *vif, | |
1648 | unsigned int filter_flags, | |
1649 | unsigned int changed_flags) | |
1650 | { | |
1651 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1652 | ||
1653 | /* We support only filter for probe requests */ | |
1654 | if (!(changed_flags & FIF_PROBE_REQ)) | |
1655 | return; | |
1656 | ||
1657 | /* Supported only for p2p client interfaces */ | |
1658 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || | |
1659 | !vif->p2p) | |
1660 | return; | |
1661 | ||
1662 | mutex_lock(&mvm->mutex); | |
1663 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1664 | mutex_unlock(&mvm->mutex); | |
1665 | } | |
1666 | ||
c87163b9 EP |
1667 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1668 | struct iwl_bcast_iter_data { | |
1669 | struct iwl_mvm *mvm; | |
1670 | struct iwl_bcast_filter_cmd *cmd; | |
1671 | u8 current_filter; | |
1672 | }; | |
1673 | ||
1674 | static void | |
1675 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1676 | const struct iwl_fw_bcast_filter *in_filter, | |
1677 | struct iwl_fw_bcast_filter *out_filter) | |
1678 | { | |
1679 | struct iwl_fw_bcast_filter_attr *attr; | |
1680 | int i; | |
1681 | ||
1682 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1683 | ||
1684 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1685 | attr = &out_filter->attrs[i]; | |
1686 | ||
1687 | if (!attr->mask) | |
1688 | break; | |
1689 | ||
2ee8f021 EP |
1690 | switch (attr->reserved1) { |
1691 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1692 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1693 | attr->mask = 0; | |
1694 | continue; | |
1695 | } | |
1696 | ||
1697 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1698 | break; | |
1699 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1700 | attr->val = *(__be32 *)&vif->addr[2]; | |
1701 | break; | |
1702 | default: | |
1703 | break; | |
1704 | } | |
1705 | attr->reserved1 = 0; | |
c87163b9 EP |
1706 | out_filter->num_attrs++; |
1707 | } | |
1708 | } | |
1709 | ||
1710 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1711 | struct ieee80211_vif *vif) | |
1712 | { | |
1713 | struct iwl_bcast_iter_data *data = _data; | |
1714 | struct iwl_mvm *mvm = data->mvm; | |
1715 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1716 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1717 | struct iwl_fw_bcast_mac *bcast_mac; | |
1718 | int i; | |
1719 | ||
1720 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1721 | return; | |
1722 | ||
1723 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1724 | ||
e48393e8 IP |
1725 | /* |
1726 | * enable filtering only for associated stations, but not for P2P | |
1727 | * Clients | |
1728 | */ | |
1729 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1730 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1731 | return; |
1732 | ||
1733 | bcast_mac->default_discard = 1; | |
1734 | ||
1735 | /* copy all configured filters */ | |
1736 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1737 | /* | |
1738 | * Make sure we don't exceed our filters limit. | |
1739 | * if there is still a valid filter to be configured, | |
1740 | * be on the safe side and just allow bcast for this mac. | |
1741 | */ | |
1742 | if (WARN_ON_ONCE(data->current_filter >= | |
1743 | ARRAY_SIZE(cmd->filters))) { | |
1744 | bcast_mac->default_discard = 0; | |
1745 | bcast_mac->attached_filters = 0; | |
1746 | break; | |
1747 | } | |
1748 | ||
1749 | iwl_mvm_set_bcast_filter(vif, | |
1750 | &mvm->bcast_filters[i], | |
1751 | &cmd->filters[data->current_filter]); | |
1752 | ||
1753 | /* skip current filter if it contains no attributes */ | |
1754 | if (!cmd->filters[data->current_filter].num_attrs) | |
1755 | continue; | |
1756 | ||
1757 | /* attach the filter to current mac */ | |
1758 | bcast_mac->attached_filters |= | |
1759 | cpu_to_le16(BIT(data->current_filter)); | |
1760 | ||
1761 | data->current_filter++; | |
1762 | } | |
1763 | } | |
1764 | ||
de06a59e EP |
1765 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1766 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1767 | { |
c87163b9 EP |
1768 | struct iwl_bcast_iter_data iter_data = { |
1769 | .mvm = mvm, | |
de06a59e | 1770 | .cmd = cmd, |
c87163b9 EP |
1771 | }; |
1772 | ||
3b8983b1 MS |
1773 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
1774 | return false; | |
1775 | ||
de06a59e EP |
1776 | memset(cmd, 0, sizeof(*cmd)); |
1777 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1778 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1779 | ||
1780 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1781 | /* use debugfs filters/macs if override is configured */ | |
1782 | if (mvm->dbgfs_bcast_filtering.override) { | |
1783 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1784 | sizeof(cmd->filters)); | |
1785 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1786 | sizeof(cmd->macs)); | |
1787 | return true; | |
1788 | } | |
1789 | #endif | |
c87163b9 EP |
1790 | |
1791 | /* if no filters are configured, do nothing */ | |
1792 | if (!mvm->bcast_filters) | |
de06a59e | 1793 | return false; |
c87163b9 EP |
1794 | |
1795 | /* configure and attach these filters for each associated sta vif */ | |
1796 | ieee80211_iterate_active_interfaces( | |
1797 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1798 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1799 | ||
de06a59e EP |
1800 | return true; |
1801 | } | |
34672bb3 EP |
1802 | |
1803 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) | |
de06a59e EP |
1804 | { |
1805 | struct iwl_bcast_filter_cmd cmd; | |
1806 | ||
1807 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1808 | return 0; | |
1809 | ||
1810 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1811 | return 0; | |
1812 | ||
a1022927 | 1813 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1814 | sizeof(cmd), &cmd); |
1815 | } | |
1816 | #else | |
34672bb3 | 1817 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) |
c87163b9 EP |
1818 | { |
1819 | return 0; | |
1820 | } | |
1821 | #endif | |
1822 | ||
a07a8f37 SS |
1823 | static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, |
1824 | struct ieee80211_vif *vif) | |
1825 | { | |
1826 | struct iwl_mu_group_mgmt_cmd cmd = {}; | |
1827 | ||
1828 | memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, | |
1829 | WLAN_MEMBERSHIP_LEN); | |
1830 | memcpy(cmd.user_position, vif->bss_conf.mu_group.position, | |
1831 | WLAN_USER_POSITION_LEN); | |
1832 | ||
1833 | return iwl_mvm_send_cmd_pdu(mvm, | |
1834 | WIDE_ID(DATA_PATH_GROUP, | |
1835 | UPDATE_MU_GROUPS_CMD), | |
1836 | 0, sizeof(cmd), &cmd); | |
1837 | } | |
1838 | ||
f92659a1 SS |
1839 | static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, |
1840 | struct ieee80211_vif *vif) | |
1841 | { | |
1842 | if (vif->mu_mimo_owner) { | |
1843 | struct iwl_mu_group_mgmt_notif *notif = _data; | |
1844 | ||
1845 | /* | |
1846 | * MU-MIMO Group Id action frame is little endian. We treat | |
1847 | * the data received from firmware as if it came from the | |
1848 | * action frame, so no conversion is needed. | |
1849 | */ | |
1850 | ieee80211_update_mu_groups(vif, | |
1851 | (u8 *)¬if->membership_status, | |
1852 | (u8 *)¬if->user_position); | |
1853 | } | |
1854 | } | |
1855 | ||
1856 | void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, | |
1857 | struct iwl_rx_cmd_buffer *rxb) | |
1858 | { | |
1859 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1860 | struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; | |
1861 | ||
1862 | ieee80211_iterate_active_interfaces_atomic( | |
1863 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1864 | iwl_mvm_mu_mimo_iface_iterator, notif); | |
1865 | } | |
1866 | ||
8ca151b5 JB |
1867 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1868 | struct ieee80211_vif *vif, | |
1869 | struct ieee80211_bss_conf *bss_conf, | |
1870 | u32 changes) | |
1871 | { | |
1872 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1873 | int ret; | |
1874 | ||
6e97b0d2 IP |
1875 | /* |
1876 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1877 | * beacon interval, which was not known when the station interface was | |
1878 | * added. | |
1879 | */ | |
1880 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1881 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1882 | ||
03098268 AE |
1883 | if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc && |
1884 | mvmvif->lqm_active) | |
1885 | iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT, | |
1886 | 0, 0); | |
1887 | ||
3dfd3a97 JB |
1888 | /* |
1889 | * If we're not associated yet, take the (new) BSSID before associating | |
1890 | * so the firmware knows. If we're already associated, then use the old | |
1891 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
1892 | * branch for disassociation below. | |
1893 | */ | |
1894 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
1895 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1896 | ||
1897 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
1898 | if (ret) |
1899 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1900 | ||
3dfd3a97 JB |
1901 | /* after sending it once, adopt mac80211 data */ |
1902 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1903 | mvmvif->associated = bss_conf->assoc; | |
1904 | ||
8ca151b5 JB |
1905 | if (changes & BSS_CHANGED_ASSOC) { |
1906 | if (bss_conf->assoc) { | |
33cef925 JB |
1907 | /* clear statistics to get clean beacon counter */ |
1908 | iwl_mvm_request_statistics(mvm, true); | |
1909 | memset(&mvmvif->beacon_stats, 0, | |
1910 | sizeof(mvmvif->beacon_stats)); | |
1911 | ||
8ca151b5 | 1912 | /* add quota for this interface */ |
7754ae79 | 1913 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1914 | if (ret) { |
1915 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1916 | return; | |
1917 | } | |
016d27e1 JB |
1918 | |
1919 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1920 | &mvm->status)) { | |
1921 | /* | |
1922 | * If we're restarting then the firmware will | |
1923 | * obviously have lost synchronisation with | |
1924 | * the AP. It will attempt to synchronise by | |
1925 | * itself, but we can make it more reliable by | |
1926 | * scheduling a session protection time event. | |
1927 | * | |
1928 | * The firmware needs to receive a beacon to | |
1929 | * catch up with synchronisation, use 110% of | |
1930 | * the beacon interval. | |
1931 | * | |
1932 | * Set a large maximum delay to allow for more | |
1933 | * than a single interface. | |
1934 | */ | |
1935 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1936 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 1937 | 5 * dur, false); |
016d27e1 | 1938 | } |
1f3b0ff8 LE |
1939 | |
1940 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1941 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 1942 | if (vif->p2p) { |
29a90a49 | 1943 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
1944 | iwl_mvm_update_smps(mvm, vif, |
1945 | IWL_MVM_SMPS_REQ_PROT, | |
1946 | IEEE80211_SMPS_DYNAMIC); | |
1947 | } | |
8ca151b5 | 1948 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
1949 | /* |
1950 | * If update fails - SF might be running in associated | |
1951 | * mode while disassociated - which is forbidden. | |
1952 | */ | |
1953 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1954 | "Failed to update SF upon disassociation\n"); | |
1955 | ||
8ca151b5 JB |
1956 | /* remove AP station now that the MAC is unassoc */ |
1957 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
1958 | if (ret) | |
1959 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
1960 | |
1961 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
1962 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
1963 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
1964 | /* remove quota for this interface */ | |
7754ae79 | 1965 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
1966 | if (ret) |
1967 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
1968 | |
1969 | if (vif->p2p) | |
1970 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
1971 | |
1972 | /* this will take the cleared BSSID from bss_conf */ | |
1973 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1974 | if (ret) | |
1975 | IWL_ERR(mvm, | |
1976 | "failed to update MAC %pM (clear after unassoc)\n", | |
1977 | vif->addr); | |
8ca151b5 | 1978 | } |
a20fd398 | 1979 | |
a07a8f37 SS |
1980 | /* |
1981 | * The firmware tracks the MU-MIMO group on its own. | |
f92659a1 | 1982 | * However, on HW restart we should restore this data. |
a07a8f37 SS |
1983 | */ |
1984 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
f92659a1 | 1985 | (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { |
a07a8f37 SS |
1986 | ret = iwl_mvm_update_mu_groups(mvm, vif); |
1987 | if (ret) | |
1988 | IWL_ERR(mvm, | |
1989 | "failed to update VHT MU_MIMO groups\n"); | |
1990 | } | |
1991 | ||
e59647ea | 1992 | iwl_mvm_recalc_multicast(mvm); |
34672bb3 | 1993 | iwl_mvm_configure_bcast_filter(mvm); |
e59647ea | 1994 | |
a20fd398 AO |
1995 | /* reset rssi values */ |
1996 | mvmvif->bf_data.ave_beacon_signal = 0; | |
1997 | ||
8e484f0b | 1998 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
1999 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
2000 | IEEE80211_SMPS_AUTOMATIC); | |
355346ba AS |
2001 | if (fw_has_capa(&mvm->fw->ucode_capa, |
2002 | IWL_UCODE_TLV_CAPA_UMAC_SCAN)) | |
2003 | iwl_mvm_config_scan(mvm); | |
989c6505 | 2004 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
2005 | /* |
2006 | * We received a beacon _after_ association so | |
2007 | * remove the session protection. | |
2008 | */ | |
2009 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2010 | &mvmvif->time_event_data); | |
8ca151b5 | 2011 | } |
cc87d322 EH |
2012 | |
2013 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
2014 | iwl_mvm_sf_update(mvm, vif, false); | |
2015 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
2016 | } | |
2017 | ||
283115fb AA |
2018 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | |
2019 | /* | |
2020 | * Send power command on every beacon change, | |
2021 | * because we may have not enabled beacon abort yet. | |
2022 | */ | |
2023 | BSS_CHANGED_BEACON_INFO)) { | |
1bc10d3b JB |
2024 | ret = iwl_mvm_power_update_mac(mvm); |
2025 | if (ret) | |
2026 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2027 | } | |
2028 | ||
88f2fd73 MG |
2029 | if (changes & BSS_CHANGED_TXPOWER) { |
2030 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2031 | bss_conf->txpower); | |
2032 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2033 | } | |
a20fd398 AO |
2034 | |
2035 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2036 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2037 | /* reset cqm events tracking */ |
2038 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2039 | if (mvmvif->bf_data.bf_enabled) { |
2040 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2041 | if (ret) | |
2042 | IWL_ERR(mvm, | |
2043 | "failed to update CQM thresholds\n"); | |
2044 | } | |
a20fd398 | 2045 | } |
2ee8f021 EP |
2046 | |
2047 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2048 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
34672bb3 | 2049 | iwl_mvm_configure_bcast_filter(mvm); |
2ee8f021 | 2050 | } |
8ca151b5 JB |
2051 | } |
2052 | ||
5023d966 JB |
2053 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2054 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2055 | { |
2056 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2057 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2058 | int ret; | |
2059 | ||
576eeee9 EP |
2060 | /* |
2061 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2062 | * (the system time), so make sure it is available. | |
2063 | */ | |
2064 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2065 | if (ret) | |
2066 | return ret; | |
2067 | ||
8ca151b5 JB |
2068 | mutex_lock(&mvm->mutex); |
2069 | ||
2070 | /* Send the beacon template */ | |
2071 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2072 | if (ret) | |
2073 | goto out_unlock; | |
2074 | ||
6e97b0d2 IP |
2075 | /* |
2076 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2077 | * beacon interval, which was not known when the AP interface was added. | |
2078 | */ | |
2079 | if (vif->type == NL80211_IFTYPE_AP) | |
2080 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2081 | ||
94939080 GG |
2082 | mvmvif->ap_assoc_sta_count = 0; |
2083 | ||
8ca151b5 JB |
2084 | /* Add the mac context */ |
2085 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2086 | if (ret) | |
2087 | goto out_unlock; | |
2088 | ||
2089 | /* Perform the binding */ | |
2090 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2091 | if (ret) | |
2092 | goto out_remove; | |
2093 | ||
8ca151b5 JB |
2094 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
2095 | * are added and applied to the scheduler */ | |
013290aa | 2096 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
2097 | if (ret) |
2098 | goto out_unbind; | |
2099 | ||
5691e218 IP |
2100 | /* must be set before quota calculations */ |
2101 | mvmvif->ap_ibss_active = true; | |
2102 | ||
a11e144e | 2103 | /* power updated needs to be done before quotas */ |
999609f1 | 2104 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2105 | |
7754ae79 | 2106 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 | 2107 | if (ret) |
a11e144e | 2108 | goto out_quota_failed; |
8ca151b5 | 2109 | |
5023d966 | 2110 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2111 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2112 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2113 | |
29a90a49 EP |
2114 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2115 | ||
8e484f0b | 2116 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2117 | |
f697267f AN |
2118 | /* we don't support TDLS during DCM */ |
2119 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2120 | iwl_mvm_teardown_tdls_peers(mvm); | |
2121 | ||
939e4904 | 2122 | goto out_unlock; |
8ca151b5 | 2123 | |
a11e144e | 2124 | out_quota_failed: |
999609f1 | 2125 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2126 | mvmvif->ap_ibss_active = false; |
013290aa | 2127 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 JB |
2128 | out_unbind: |
2129 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2130 | out_remove: | |
2131 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2132 | out_unlock: | |
2133 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2134 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2135 | return ret; |
2136 | } | |
2137 | ||
5023d966 JB |
2138 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2139 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2140 | { |
2141 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2142 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2143 | ||
38a12b5b JB |
2144 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2145 | ||
8ca151b5 JB |
2146 | mutex_lock(&mvm->mutex); |
2147 | ||
664322fa | 2148 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2149 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2150 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2151 | &mvmvif->time_event_data); | |
664322fa | 2152 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
e9cb0327 | 2153 | mvmvif->csa_countdown = false; |
7f0a7c67 | 2154 | } |
664322fa | 2155 | |
003e5236 AO |
2156 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2157 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2158 | mvm->csa_tx_block_bcn_timeout = 0; | |
2159 | } | |
2160 | ||
5023d966 | 2161 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2162 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2163 | |
8e484f0b | 2164 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2165 | |
29a90a49 EP |
2166 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2167 | ||
5023d966 | 2168 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2169 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2170 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2171 | |
7754ae79 | 2172 | iwl_mvm_update_quotas(mvm, false, NULL); |
013290aa | 2173 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 | 2174 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2175 | |
999609f1 | 2176 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2177 | |
8ca151b5 JB |
2178 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2179 | ||
2180 | mutex_unlock(&mvm->mutex); | |
2181 | } | |
2182 | ||
5023d966 JB |
2183 | static void |
2184 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2185 | struct ieee80211_vif *vif, | |
2186 | struct ieee80211_bss_conf *bss_conf, | |
2187 | u32 changes) | |
8ca151b5 | 2188 | { |
be2056fc | 2189 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2190 | |
be2056fc IP |
2191 | /* Changes will be applied when the AP/IBSS is started */ |
2192 | if (!mvmvif->ap_ibss_active) | |
2193 | return; | |
2194 | ||
863230da | 2195 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2196 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2197 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2198 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2199 | |
8ca151b5 | 2200 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2201 | if (changes & BSS_CHANGED_BEACON && |
2202 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2203 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2204 | |
2205 | if (changes & BSS_CHANGED_TXPOWER) { | |
2206 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2207 | bss_conf->txpower); | |
2208 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2209 | } | |
8ca151b5 JB |
2210 | } |
2211 | ||
2212 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2213 | struct ieee80211_vif *vif, | |
2214 | struct ieee80211_bss_conf *bss_conf, | |
2215 | u32 changes) | |
2216 | { | |
2217 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2218 | ||
576eeee9 EP |
2219 | /* |
2220 | * iwl_mvm_bss_info_changed_station() might call | |
2221 | * iwl_mvm_protect_session(), which reads directly from | |
2222 | * the device (the system time), so make sure it is available. | |
2223 | */ | |
2224 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2225 | return; | |
2226 | ||
8ca151b5 JB |
2227 | mutex_lock(&mvm->mutex); |
2228 | ||
723f02ed | 2229 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
c7d42480 | 2230 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
723f02ed | 2231 | |
8ca151b5 JB |
2232 | switch (vif->type) { |
2233 | case NL80211_IFTYPE_STATION: | |
2234 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2235 | break; | |
2236 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2237 | case NL80211_IFTYPE_ADHOC: |
2238 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 | 2239 | break; |
91b08c2d AE |
2240 | case NL80211_IFTYPE_MONITOR: |
2241 | if (changes & BSS_CHANGED_MU_GROUPS) | |
2242 | iwl_mvm_update_mu_groups(mvm, vif); | |
2243 | break; | |
8ca151b5 JB |
2244 | default: |
2245 | /* shouldn't happen */ | |
2246 | WARN_ON_ONCE(1); | |
2247 | } | |
2248 | ||
2249 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2250 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2251 | } |
2252 | ||
2253 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
2254 | struct ieee80211_vif *vif, | |
c56ef672 | 2255 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2256 | { |
2257 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2258 | int ret; | |
2259 | ||
6749dd80 LC |
2260 | if (hw_req->req.n_channels == 0 || |
2261 | hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2262 | return -EINVAL; |
2263 | ||
2264 | mutex_lock(&mvm->mutex); | |
6749dd80 | 2265 | ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); |
8ca151b5 | 2266 | mutex_unlock(&mvm->mutex); |
6749dd80 | 2267 | |
8ca151b5 JB |
2268 | return ret; |
2269 | } | |
2270 | ||
2271 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2272 | struct ieee80211_vif *vif) | |
2273 | { | |
2274 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2275 | ||
2276 | mutex_lock(&mvm->mutex); | |
2277 | ||
e7d3abab LC |
2278 | /* Due to a race condition, it's possible that mac80211 asks |
2279 | * us to stop a hw_scan when it's already stopped. This can | |
2280 | * happen, for instance, if we stopped the scan ourselves, | |
2281 | * called ieee80211_scan_completed() and the userspace called | |
2282 | * cancel scan scan before ieee80211_scan_work() could run. | |
2283 | * To handle that, simply return if the scan is not running. | |
2284 | */ | |
262888fc | 2285 | if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) |
c7d42480 | 2286 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
8ca151b5 JB |
2287 | |
2288 | mutex_unlock(&mvm->mutex); | |
2289 | } | |
2290 | ||
2291 | static void | |
2292 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2293 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2294 | int num_frames, |
2295 | enum ieee80211_frame_release_type reason, | |
2296 | bool more_data) | |
2297 | { | |
2298 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2299 | |
3e56eadf | 2300 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2301 | |
3e56eadf JB |
2302 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2303 | tids, more_data, false); | |
2304 | } | |
2305 | ||
2306 | static void | |
2307 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2308 | struct ieee80211_sta *sta, u16 tids, | |
2309 | int num_frames, | |
2310 | enum ieee80211_frame_release_type reason, | |
2311 | bool more_data) | |
2312 | { | |
2313 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2314 | ||
2315 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
2316 | ||
2317 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2318 | tids, more_data, true); | |
8ca151b5 JB |
2319 | } |
2320 | ||
2321 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
2322 | struct ieee80211_vif *vif, | |
2323 | enum sta_notify_cmd cmd, | |
2324 | struct ieee80211_sta *sta) | |
2325 | { | |
2326 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2327 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
c22b0ff5 | 2328 | unsigned long txqs = 0, tids = 0; |
3e56eadf | 2329 | int tid; |
8ca151b5 | 2330 | |
c22b0ff5 EG |
2331 | spin_lock_bh(&mvmsta->lock); |
2332 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2333 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
2334 | ||
2335 | if (tid_data->state != IWL_AGG_ON && | |
2336 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
2337 | continue; | |
2338 | ||
2339 | __set_bit(tid_data->txq_id, &txqs); | |
2340 | ||
2341 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
2342 | continue; | |
2343 | ||
2344 | __set_bit(tid, &tids); | |
2345 | } | |
2346 | ||
8ca151b5 JB |
2347 | switch (cmd) { |
2348 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 2349 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 2350 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf | 2351 | |
c22b0ff5 | 2352 | for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
3e56eadf | 2353 | ieee80211_sta_set_buffered(sta, tid, true); |
c22b0ff5 EG |
2354 | |
2355 | if (txqs) | |
2356 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); | |
8ca151b5 JB |
2357 | /* |
2358 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2359 | * queues to this station will not be transmitted. The fw will | |
2360 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2361 | */ | |
2362 | break; | |
2363 | case STA_NOTIFY_AWAKE: | |
881acd89 | 2364 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 2365 | break; |
c22b0ff5 EG |
2366 | |
2367 | if (txqs) | |
2368 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); | |
9cc40712 | 2369 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2370 | break; |
2371 | default: | |
2372 | break; | |
2373 | } | |
c22b0ff5 | 2374 | spin_unlock_bh(&mvmsta->lock); |
8ca151b5 JB |
2375 | } |
2376 | ||
1ddbbb0c JB |
2377 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2378 | struct ieee80211_vif *vif, | |
2379 | struct ieee80211_sta *sta) | |
2380 | { | |
2381 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2382 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2383 | |
2384 | /* | |
2385 | * This is called before mac80211 does RCU synchronisation, | |
2386 | * so here we already invalidate our internal RCU-protected | |
2387 | * station pointer. The rest of the code will thus no longer | |
2388 | * be able to find the station this way, and we don't rely | |
2389 | * on further RCU synchronisation after the sta_state() | |
2390 | * callback deleted the station. | |
2391 | */ | |
2392 | mutex_lock(&mvm->mutex); | |
2393 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2394 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2395 | ERR_PTR(-ENOENT)); | |
94939080 | 2396 | |
1ddbbb0c JB |
2397 | mutex_unlock(&mvm->mutex); |
2398 | } | |
2399 | ||
bd1ba664 JB |
2400 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2401 | const u8 *bssid) | |
2402 | { | |
2403 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2404 | return; | |
2405 | ||
c5241b0c | 2406 | if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { |
cee5a882 AA |
2407 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2408 | return; | |
2409 | } | |
2410 | ||
11dee0b4 EG |
2411 | if (!vif->p2p && |
2412 | (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { | |
bd1ba664 JB |
2413 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2414 | return; | |
2415 | } | |
2416 | ||
2417 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2418 | } | |
2419 | ||
1e8f1329 GBA |
2420 | static void |
2421 | iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, | |
2422 | struct ieee80211_vif *vif, u8 *peer_addr, | |
2423 | enum nl80211_tdls_operation action) | |
2424 | { | |
2425 | struct iwl_fw_dbg_trigger_tlv *trig; | |
2426 | struct iwl_fw_dbg_trigger_tdls *tdls_trig; | |
2427 | ||
2428 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) | |
2429 | return; | |
2430 | ||
2431 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); | |
2432 | tdls_trig = (void *)trig->data; | |
2433 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
2434 | return; | |
2435 | ||
2436 | if (!(tdls_trig->action_bitmap & BIT(action))) | |
2437 | return; | |
2438 | ||
2439 | if (tdls_trig->peer_mode && | |
2440 | memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) | |
2441 | return; | |
2442 | ||
2443 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
2444 | "TDLS event occurred, peer %pM, action %d", | |
2445 | peer_addr, action); | |
2446 | } | |
2447 | ||
24afba76 LK |
2448 | static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm, |
2449 | struct iwl_mvm_sta *mvm_sta) | |
2450 | { | |
2451 | struct iwl_mvm_tid_data *tid_data; | |
2452 | struct sk_buff *skb; | |
2453 | int i; | |
2454 | ||
2455 | spin_lock_bh(&mvm_sta->lock); | |
2456 | for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { | |
2457 | tid_data = &mvm_sta->tid_data[i]; | |
2458 | while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) | |
2459 | ieee80211_free_txskb(mvm->hw, skb); | |
2460 | } | |
2461 | spin_unlock_bh(&mvm_sta->lock); | |
2462 | } | |
2463 | ||
8ca151b5 JB |
2464 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2465 | struct ieee80211_vif *vif, | |
2466 | struct ieee80211_sta *sta, | |
2467 | enum ieee80211_sta_state old_state, | |
2468 | enum ieee80211_sta_state new_state) | |
2469 | { | |
2470 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2471 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2472 | int ret; | |
2473 | ||
2474 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2475 | sta->addr, old_state, new_state); | |
2476 | ||
2477 | /* this would be a mac80211 bug ... but don't crash */ | |
2478 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2479 | return -EINVAL; | |
2480 | ||
2481 | /* if a STA is being removed, reuse its ID */ | |
2482 | flush_work(&mvm->sta_drained_wk); | |
2483 | ||
24afba76 LK |
2484 | /* |
2485 | * If we are in a STA removal flow and in DQA mode: | |
2486 | * | |
2487 | * This is after the sync_rcu part, so the queues have already been | |
2488 | * flushed. No more TXs on their way in mac80211's path, and no more in | |
2489 | * the queues. | |
2490 | * Also, we won't be getting any new TX frames for this station. | |
2491 | * What we might have are deferred TX frames that need to be taken care | |
2492 | * of. | |
2493 | * | |
2494 | * Drop any still-queued deferred-frame before removing the STA, and | |
2495 | * make sure the worker is no longer handling frames for this STA. | |
2496 | */ | |
2497 | if (old_state == IEEE80211_STA_NONE && | |
2498 | new_state == IEEE80211_STA_NOTEXIST && | |
2499 | iwl_mvm_is_dqa_supported(mvm)) { | |
2500 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); | |
2501 | ||
2502 | iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta); | |
2503 | flush_work(&mvm->add_stream_wk); | |
2504 | ||
2505 | /* | |
2506 | * No need to make sure deferred TX indication is off since the | |
2507 | * worker will already remove it if it was on | |
2508 | */ | |
2509 | } | |
2510 | ||
8ca151b5 JB |
2511 | mutex_lock(&mvm->mutex); |
2512 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2513 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2514 | /* |
2515 | * Firmware bug - it'll crash if the beacon interval is less | |
2516 | * than 16. We can't avoid connecting at all, so refuse the | |
2517 | * station state change, this will cause mac80211 to abandon | |
2518 | * attempts to connect to this AP, and eventually wpa_s will | |
2519 | * blacklist the AP... | |
2520 | */ | |
2521 | if (vif->type == NL80211_IFTYPE_STATION && | |
2522 | vif->bss_conf.beacon_int < 16) { | |
2523 | IWL_ERR(mvm, | |
2524 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2525 | sta->addr, vif->bss_conf.beacon_int); | |
2526 | ret = -EINVAL; | |
2527 | goto out_unlock; | |
2528 | } | |
cf7b491d AN |
2529 | |
2530 | if (sta->tdls && | |
2531 | (vif->p2p || | |
fa3d07e4 AN |
2532 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2533 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2534 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2535 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2536 | ret = -EBUSY; | |
2537 | goto out_unlock; | |
2538 | } | |
2539 | ||
8ca151b5 | 2540 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1e8f1329 | 2541 | if (sta->tdls && ret == 0) { |
fa3d07e4 | 2542 | iwl_mvm_recalc_tdls_state(mvm, vif, true); |
1e8f1329 GBA |
2543 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2544 | NL80211_TDLS_SETUP); | |
2545 | } | |
8ca151b5 JB |
2546 | } else if (old_state == IEEE80211_STA_NONE && |
2547 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2548 | /* |
2549 | * EBS may be disabled due to previous failures reported by FW. | |
2550 | * Reset EBS status here assuming environment has been changed. | |
2551 | */ | |
2552 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2553 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2554 | ret = 0; |
2555 | } else if (old_state == IEEE80211_STA_AUTH && | |
2556 | new_state == IEEE80211_STA_ASSOC) { | |
8be30c13 AB |
2557 | if (vif->type == NL80211_IFTYPE_AP) { |
2558 | mvmvif->ap_assoc_sta_count++; | |
2559 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2560 | } | |
7a453973 JB |
2561 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
2562 | if (ret == 0) | |
2563 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
2564 | mvmvif->phy_ctxt->channel->band, |
2565 | true); | |
8ca151b5 JB |
2566 | } else if (old_state == IEEE80211_STA_ASSOC && |
2567 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2568 | |
2569 | /* we don't support TDLS during DCM */ | |
2570 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2571 | iwl_mvm_teardown_tdls_peers(mvm); | |
2572 | ||
1e8f1329 GBA |
2573 | if (sta->tdls) |
2574 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, | |
2575 | NL80211_TDLS_ENABLE_LINK); | |
2576 | ||
7df15b1e | 2577 | /* enable beacon filtering */ |
fa7b2e7f | 2578 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2579 | ret = 0; |
2580 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2581 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2582 | /* disable beacon filtering */ |
a1022927 | 2583 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2584 | ret = 0; |
2585 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2586 | new_state == IEEE80211_STA_AUTH) { | |
8be30c13 AB |
2587 | if (vif->type == NL80211_IFTYPE_AP) { |
2588 | mvmvif->ap_assoc_sta_count--; | |
2589 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2590 | } | |
8ca151b5 JB |
2591 | ret = 0; |
2592 | } else if (old_state == IEEE80211_STA_AUTH && | |
2593 | new_state == IEEE80211_STA_NONE) { | |
2594 | ret = 0; | |
2595 | } else if (old_state == IEEE80211_STA_NONE && | |
2596 | new_state == IEEE80211_STA_NOTEXIST) { | |
2597 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1e8f1329 | 2598 | if (sta->tdls) { |
fa3d07e4 | 2599 | iwl_mvm_recalc_tdls_state(mvm, vif, false); |
1e8f1329 GBA |
2600 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2601 | NL80211_TDLS_DISABLE_LINK); | |
2602 | } | |
8ca151b5 JB |
2603 | } else { |
2604 | ret = -EIO; | |
2605 | } | |
48bc1307 | 2606 | out_unlock: |
8ca151b5 JB |
2607 | mutex_unlock(&mvm->mutex); |
2608 | ||
9c126cd6 LK |
2609 | if (sta->tdls && ret == 0) { |
2610 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2611 | new_state == IEEE80211_STA_NONE) | |
2612 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2613 | else if (old_state == IEEE80211_STA_NONE && | |
2614 | new_state == IEEE80211_STA_NOTEXIST) | |
2615 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2616 | } | |
2617 | ||
8ca151b5 JB |
2618 | return ret; |
2619 | } | |
2620 | ||
2621 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2622 | { | |
2623 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2624 | ||
2625 | mvm->rts_threshold = value; | |
2626 | ||
2627 | return 0; | |
2628 | } | |
2629 | ||
1f3b0ff8 LE |
2630 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2631 | struct ieee80211_vif *vif, | |
2632 | struct ieee80211_sta *sta, u32 changed) | |
2633 | { | |
2634 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2635 | ||
2636 | if (vif->type == NL80211_IFTYPE_STATION && | |
2637 | changed & IEEE80211_RC_NSS_CHANGED) | |
2638 | iwl_mvm_sf_update(mvm, vif, false); | |
2639 | } | |
2640 | ||
8ca151b5 JB |
2641 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2642 | struct ieee80211_vif *vif, u16 ac, | |
2643 | const struct ieee80211_tx_queue_params *params) | |
2644 | { | |
2645 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2646 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2647 | ||
2648 | mvmvif->queue_params[ac] = *params; | |
2649 | ||
2650 | /* | |
2651 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2652 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2653 | */ | |
2654 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2655 | int ret; | |
2656 | ||
2657 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2658 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2659 | mutex_unlock(&mvm->mutex); |
2660 | return ret; | |
2661 | } | |
2662 | return 0; | |
2663 | } | |
2664 | ||
2665 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2666 | struct ieee80211_vif *vif) | |
2667 | { | |
2668 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
7c70fee5 SS |
2669 | u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; |
2670 | u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; | |
8ca151b5 JB |
2671 | |
2672 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2673 | return; | |
2674 | ||
576eeee9 EP |
2675 | /* |
2676 | * iwl_mvm_protect_session() reads directly from the device | |
2677 | * (the system time), so make sure it is available. | |
2678 | */ | |
2679 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2680 | return; | |
2681 | ||
8ca151b5 JB |
2682 | mutex_lock(&mvm->mutex); |
2683 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2684 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2685 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2686 | |
2687 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2688 | } |
2689 | ||
35a000b7 DS |
2690 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2691 | struct ieee80211_vif *vif, | |
2692 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2693 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2694 | { |
2695 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
35a000b7 | 2696 | |
35a000b7 | 2697 | int ret; |
4660dfbb | 2698 | |
35a000b7 DS |
2699 | mutex_lock(&mvm->mutex); |
2700 | ||
1f940386 | 2701 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2702 | ret = -EBUSY; |
2703 | goto out; | |
2704 | } | |
2705 | ||
19945dfb | 2706 | ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); |
d2496221 | 2707 | |
35a000b7 DS |
2708 | out: |
2709 | mutex_unlock(&mvm->mutex); | |
2710 | return ret; | |
2711 | } | |
2712 | ||
37e3308c JB |
2713 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2714 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2715 | { |
2716 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2717 | int ret; |
35a000b7 DS |
2718 | |
2719 | mutex_lock(&mvm->mutex); | |
e7d3abab LC |
2720 | |
2721 | /* Due to a race condition, it's possible that mac80211 asks | |
2722 | * us to stop a sched_scan when it's already stopped. This | |
2723 | * can happen, for instance, if we stopped the scan ourselves, | |
2724 | * called ieee80211_sched_scan_stopped() and the userspace called | |
2725 | * stop sched scan scan before ieee80211_sched_scan_stopped_work() | |
2726 | * could run. To handle this, simply return if the scan is | |
2727 | * not running. | |
2728 | */ | |
262888fc | 2729 | if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { |
e7d3abab LC |
2730 | mutex_unlock(&mvm->mutex); |
2731 | return 0; | |
2732 | } | |
2733 | ||
c7d42480 | 2734 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); |
35a000b7 | 2735 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2736 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2737 | |
33ea27f6 | 2738 | return ret; |
35a000b7 DS |
2739 | } |
2740 | ||
8ca151b5 JB |
2741 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2742 | enum set_key_cmd cmd, | |
2743 | struct ieee80211_vif *vif, | |
2744 | struct ieee80211_sta *sta, | |
2745 | struct ieee80211_key_conf *key) | |
2746 | { | |
2747 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
f5e28eac JB |
2748 | struct iwl_mvm_sta *mvmsta; |
2749 | struct iwl_mvm_key_pn *ptk_pn; | |
2750 | int keyidx = key->keyidx; | |
8ca151b5 | 2751 | int ret; |
d6ee54a9 | 2752 | u8 key_offset; |
8ca151b5 JB |
2753 | |
2754 | if (iwlwifi_mod_params.sw_crypto) { | |
2755 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
2756 | return -EOPNOTSUPP; | |
2757 | } | |
2758 | ||
2759 | switch (key->cipher) { | |
2760 | case WLAN_CIPHER_SUITE_TKIP: | |
2761 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1ad4f639 | 2762 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
8ca151b5 | 2763 | break; |
ca8c0f4b | 2764 | case WLAN_CIPHER_SUITE_CCMP: |
2a53d166 AB |
2765 | case WLAN_CIPHER_SUITE_GCMP: |
2766 | case WLAN_CIPHER_SUITE_GCMP_256: | |
ca8c0f4b JB |
2767 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
2768 | break; | |
8ca151b5 | 2769 | case WLAN_CIPHER_SUITE_AES_CMAC: |
8e160ab8 AB |
2770 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
2771 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
30686bf7 | 2772 | WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); |
8ca151b5 JB |
2773 | break; |
2774 | case WLAN_CIPHER_SUITE_WEP40: | |
2775 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2776 | /* For non-client mode, only use WEP keys for TX as we probably |
2777 | * don't have a station yet anyway and would then have to keep | |
2778 | * track of the keys, linking them to each of the clients/peers | |
2779 | * as they appear. For now, don't do that, for performance WEP | |
2780 | * offload doesn't really matter much, but we need it for some | |
2781 | * other offload features in client mode. | |
8ca151b5 | 2782 | */ |
ba3943b0 JB |
2783 | if (vif->type != NL80211_IFTYPE_STATION) |
2784 | return 0; | |
2785 | break; | |
8ca151b5 | 2786 | default: |
e36e5433 MS |
2787 | /* currently FW supports only one optional cipher scheme */ |
2788 | if (hw->n_cipher_schemes && | |
2789 | hw->cipher_schemes->cipher == key->cipher) | |
2790 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2791 | else | |
2792 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2793 | } |
2794 | ||
2795 | mutex_lock(&mvm->mutex); | |
2796 | ||
2797 | switch (cmd) { | |
2798 | case SET_KEY: | |
5023d966 JB |
2799 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2800 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2801 | /* | |
2802 | * GTK on AP interface is a TX-only key, return 0; | |
2803 | * on IBSS they're per-station and because we're lazy | |
2804 | * we don't support them for RX, so do the same. | |
8e160ab8 | 2805 | * CMAC/GMAC in AP/IBSS modes must be done in software. |
5023d966 | 2806 | */ |
8e160ab8 AB |
2807 | if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || |
2808 | key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || | |
2809 | key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) | |
81279c49 JB |
2810 | ret = -EOPNOTSUPP; |
2811 | else | |
2812 | ret = 0; | |
6caffd4f JB |
2813 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
2814 | break; | |
2815 | } | |
2816 | ||
b546dcd6 JB |
2817 | /* During FW restart, in order to restore the state as it was, |
2818 | * don't try to reprogram keys we previously failed for. | |
2819 | */ | |
2820 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2821 | key->hw_key_idx == STA_KEY_IDX_INVALID) { | |
2822 | IWL_DEBUG_MAC80211(mvm, | |
2823 | "skip invalid idx key programming during restart\n"); | |
2824 | ret = 0; | |
2825 | break; | |
2826 | } | |
2827 | ||
f5e28eac JB |
2828 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
2829 | sta && iwl_mvm_has_new_rx_api(mvm) && | |
2830 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
2831 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
2832 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
2833 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
2834 | struct ieee80211_key_seq seq; |
2835 | int tid, q; | |
2836 | ||
2837 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
2838 | WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); | |
2839 | ptk_pn = kzalloc(sizeof(*ptk_pn) + | |
2840 | mvm->trans->num_rx_queues * | |
2841 | sizeof(ptk_pn->q[0]), | |
2842 | GFP_KERNEL); | |
2843 | if (!ptk_pn) { | |
2844 | ret = -ENOMEM; | |
2845 | break; | |
2846 | } | |
2847 | ||
2848 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2849 | ieee80211_get_key_rx_seq(key, tid, &seq); | |
2850 | for (q = 0; q < mvm->trans->num_rx_queues; q++) | |
2851 | memcpy(ptk_pn->q[q].pn[tid], | |
2852 | seq.ccmp.pn, | |
2853 | IEEE80211_CCMP_PN_LEN); | |
2854 | } | |
2855 | ||
2856 | rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); | |
2857 | } | |
2858 | ||
d6ee54a9 LC |
2859 | /* in HW restart reuse the index, otherwise request a new one */ |
2860 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
2861 | key_offset = key->hw_key_idx; | |
2862 | else | |
2863 | key_offset = STA_KEY_IDX_INVALID; | |
2864 | ||
8ca151b5 | 2865 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
d6ee54a9 | 2866 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); |
8ca151b5 JB |
2867 | if (ret) { |
2868 | IWL_WARN(mvm, "set key failed\n"); | |
2869 | /* | |
2870 | * can't add key for RX, but we don't need it | |
2871 | * in the device for TX so still return 0 | |
2872 | */ | |
6caffd4f | 2873 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
2874 | ret = 0; |
2875 | } | |
2876 | ||
2877 | break; | |
2878 | case DISABLE_KEY: | |
6caffd4f JB |
2879 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
2880 | ret = 0; | |
2881 | break; | |
2882 | } | |
2883 | ||
f5e28eac JB |
2884 | if (sta && iwl_mvm_has_new_rx_api(mvm) && |
2885 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
2886 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
2887 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
2888 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
2889 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
2890 | ptk_pn = rcu_dereference_protected( | |
2891 | mvmsta->ptk_pn[keyidx], | |
2892 | lockdep_is_held(&mvm->mutex)); | |
2893 | RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); | |
2894 | if (ptk_pn) | |
2895 | kfree_rcu(ptk_pn, rcu_head); | |
2896 | } | |
2897 | ||
8ca151b5 JB |
2898 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2899 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2900 | break; | |
2901 | default: | |
2902 | ret = -EINVAL; | |
2903 | } | |
2904 | ||
2905 | mutex_unlock(&mvm->mutex); | |
2906 | return ret; | |
2907 | } | |
2908 | ||
2909 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2910 | struct ieee80211_vif *vif, | |
2911 | struct ieee80211_key_conf *keyconf, | |
2912 | struct ieee80211_sta *sta, | |
2913 | u32 iv32, u16 *phase1key) | |
2914 | { | |
2915 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2916 | ||
5023d966 JB |
2917 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2918 | return; | |
2919 | ||
8ca151b5 JB |
2920 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2921 | } | |
2922 | ||
2923 | ||
b112889c AM |
2924 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
2925 | struct iwl_rx_packet *pkt, void *data) | |
2926 | { | |
2927 | struct iwl_mvm *mvm = | |
2928 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
2929 | struct iwl_hs20_roc_res *resp; | |
2930 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
2931 | struct iwl_mvm_time_event_data *te_data = data; | |
2932 | ||
2933 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
2934 | return true; | |
2935 | ||
2936 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
2937 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
2938 | return true; | |
2939 | } | |
2940 | ||
2941 | resp = (void *)pkt->data; | |
2942 | ||
2943 | IWL_DEBUG_TE(mvm, | |
2944 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
2945 | resp->status, resp->event_unique_id); | |
2946 | ||
2947 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
2948 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
2949 | te_data->uid); | |
2950 | ||
2951 | spin_lock_bh(&mvm->time_event_lock); | |
2952 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
2953 | spin_unlock_bh(&mvm->time_event_lock); | |
2954 | ||
2955 | return true; | |
2956 | } | |
2957 | ||
dc28e12f MG |
2958 | #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) |
2959 | #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) | |
2960 | #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) | |
2961 | #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) | |
2962 | #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) | |
b112889c AM |
2963 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
2964 | struct ieee80211_channel *channel, | |
2965 | struct ieee80211_vif *vif, | |
2966 | int duration) | |
2967 | { | |
2968 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
2969 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2970 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
6eb031d2 | 2971 | static const u16 time_event_response[] = { HOT_SPOT_CMD }; |
b112889c | 2972 | struct iwl_notification_wait wait_time_event; |
dc28e12f MG |
2973 | u32 dtim_interval = vif->bss_conf.dtim_period * |
2974 | vif->bss_conf.beacon_int; | |
2975 | u32 req_dur, delay; | |
b112889c AM |
2976 | struct iwl_hs20_roc_req aux_roc_req = { |
2977 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
2978 | .id_and_color = | |
2979 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
2980 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
2981 | /* Set the channel info data */ | |
57fbcce3 | 2982 | .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ? |
b112889c AM |
2983 | PHY_BAND_24 : PHY_BAND_5, |
2984 | .channel_info.channel = channel->hw_value, | |
2985 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
2986 | /* Set the time and duration */ | |
2987 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
b112889c AM |
2988 | }; |
2989 | ||
dc28e12f MG |
2990 | delay = AUX_ROC_MIN_DELAY; |
2991 | req_dur = MSEC_TO_TU(duration); | |
2992 | ||
2993 | /* | |
2994 | * If we are associated we want the delay time to be at least one | |
2995 | * dtim interval so that the FW can wait until after the DTIM and | |
2996 | * then start the time event, this will potentially allow us to | |
2997 | * remain off-channel for the max duration. | |
2998 | * Since we want to use almost a whole dtim interval we would also | |
2999 | * like the delay to be for 2-3 dtim intervals, in case there are | |
3000 | * other time events with higher priority. | |
3001 | */ | |
3002 | if (vif->bss_conf.assoc) { | |
3003 | delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); | |
3004 | /* We cannot remain off-channel longer than the DTIM interval */ | |
3005 | if (dtim_interval <= req_dur) { | |
3006 | req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; | |
3007 | if (req_dur <= AUX_ROC_MIN_DURATION) | |
3008 | req_dur = dtim_interval - | |
3009 | AUX_ROC_MIN_SAFETY_BUFFER; | |
3010 | } | |
3011 | } | |
3012 | ||
3013 | aux_roc_req.duration = cpu_to_le32(req_dur); | |
3014 | aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); | |
3015 | ||
3016 | IWL_DEBUG_TE(mvm, | |
3017 | "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", | |
3018 | channel->hw_value, req_dur, duration, delay, | |
3019 | dtim_interval); | |
b112889c AM |
3020 | /* Set the node address */ |
3021 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
3022 | ||
a6cc5163 MG |
3023 | lockdep_assert_held(&mvm->mutex); |
3024 | ||
3025 | spin_lock_bh(&mvm->time_event_lock); | |
3026 | ||
3027 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
3028 | spin_unlock_bh(&mvm->time_event_lock); | |
3029 | return -EIO; | |
3030 | } | |
3031 | ||
b112889c AM |
3032 | te_data->vif = vif; |
3033 | te_data->duration = duration; | |
3034 | te_data->id = HOT_SPOT_CMD; | |
3035 | ||
b112889c AM |
3036 | spin_unlock_bh(&mvm->time_event_lock); |
3037 | ||
3038 | /* | |
3039 | * Use a notification wait, which really just processes the | |
3040 | * command response and doesn't wait for anything, in order | |
3041 | * to be able to process the response and get the UID inside | |
3042 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
3043 | * stores the buffer and then wakes up this thread, by which | |
3044 | * time another notification (that the time event started) | |
3045 | * might already be processed unsuccessfully. | |
3046 | */ | |
3047 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
3048 | time_event_response, | |
3049 | ARRAY_SIZE(time_event_response), | |
3050 | iwl_mvm_rx_aux_roc, te_data); | |
3051 | ||
3052 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
3053 | &aux_roc_req); | |
3054 | ||
3055 | if (res) { | |
3056 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
3057 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
3058 | goto out_clear_te; | |
3059 | } | |
3060 | ||
3061 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
3062 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
3063 | /* should never fail */ | |
3064 | WARN_ON_ONCE(res); | |
3065 | ||
3066 | if (res) { | |
3067 | out_clear_te: | |
3068 | spin_lock_bh(&mvm->time_event_lock); | |
3069 | iwl_mvm_te_clear_data(mvm, te_data); | |
3070 | spin_unlock_bh(&mvm->time_event_lock); | |
3071 | } | |
3072 | ||
3073 | return res; | |
3074 | } | |
3075 | ||
8ca151b5 JB |
3076 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
3077 | struct ieee80211_vif *vif, | |
3078 | struct ieee80211_channel *channel, | |
d339d5ca IP |
3079 | int duration, |
3080 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
3081 | { |
3082 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 3083 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 3084 | struct cfg80211_chan_def chandef; |
31d385ae IP |
3085 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
3086 | int ret, i; | |
3087 | ||
3088 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
3089 | duration, type); | |
8ca151b5 | 3090 | |
6ed13164 MG |
3091 | flush_work(&mvm->roc_done_wk); |
3092 | ||
a6cc5163 MG |
3093 | mutex_lock(&mvm->mutex); |
3094 | ||
b112889c AM |
3095 | switch (vif->type) { |
3096 | case NL80211_IFTYPE_STATION: | |
859d914c JB |
3097 | if (fw_has_capa(&mvm->fw->ucode_capa, |
3098 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { | |
5ac6c72e LC |
3099 | /* Use aux roc framework (HS20) */ |
3100 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
3101 | vif, duration); | |
3102 | goto out_unlock; | |
3103 | } | |
3104 | IWL_ERR(mvm, "hotspot not supported\n"); | |
3105 | ret = -EINVAL; | |
a6cc5163 | 3106 | goto out_unlock; |
b112889c AM |
3107 | case NL80211_IFTYPE_P2P_DEVICE: |
3108 | /* handle below */ | |
3109 | break; | |
3110 | default: | |
3111 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
3112 | ret = -EINVAL; |
3113 | goto out_unlock; | |
8ca151b5 JB |
3114 | } |
3115 | ||
31d385ae IP |
3116 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3117 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3118 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3119 | continue; | |
3120 | ||
3121 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3122 | /* | |
3123 | * Unbind the P2P_DEVICE from the current PHY context, | |
3124 | * and if the PHY context is not used remove it. | |
3125 | */ | |
3126 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3127 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3128 | goto out_unlock; | |
3129 | ||
3130 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3131 | ||
3132 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3133 | mvmvif->phy_ctxt = phy_ctxt; | |
3134 | ||
3135 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3136 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3137 | goto out_unlock; | |
3138 | ||
3139 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3140 | goto schedule_time_event; | |
3141 | } | |
3142 | } | |
3143 | ||
3144 | /* Need to update the PHY context only if the ROC channel changed */ | |
3145 | if (channel == mvmvif->phy_ctxt->channel) | |
3146 | goto schedule_time_event; | |
3147 | ||
8ca151b5 | 3148 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3149 | |
31d385ae IP |
3150 | /* |
3151 | * Change the PHY context configuration as it is currently referenced | |
3152 | * only by the P2P Device MAC | |
3153 | */ | |
3154 | if (mvmvif->phy_ctxt->ref == 1) { | |
3155 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3156 | &chandef, 1, 1); | |
3157 | if (ret) | |
3158 | goto out_unlock; | |
3159 | } else { | |
3160 | /* | |
3161 | * The PHY context is shared with other MACs. Need to remove the | |
3162 | * P2P Device from the binding, allocate an new PHY context and | |
3163 | * create a new binding | |
3164 | */ | |
3165 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3166 | if (!phy_ctxt) { | |
3167 | ret = -ENOSPC; | |
3168 | goto out_unlock; | |
3169 | } | |
3170 | ||
3171 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3172 | 1, 1); | |
3173 | if (ret) { | |
3174 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3175 | goto out_unlock; | |
3176 | } | |
3177 | ||
3178 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3179 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3180 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3181 | goto out_unlock; | |
3182 | ||
3183 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3184 | ||
3185 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3186 | mvmvif->phy_ctxt = phy_ctxt; | |
3187 | ||
3188 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3189 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3190 | goto out_unlock; | |
3191 | ||
3192 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3193 | } | |
3194 | ||
3195 | schedule_time_event: | |
8ca151b5 | 3196 | /* Schedule the time events */ |
e635c797 | 3197 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3198 | |
31d385ae | 3199 | out_unlock: |
8ca151b5 JB |
3200 | mutex_unlock(&mvm->mutex); |
3201 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3202 | return ret; |
3203 | } | |
3204 | ||
3205 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3206 | { | |
3207 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3208 | ||
3209 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3210 | ||
3211 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3212 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3213 | mutex_unlock(&mvm->mutex); |
3214 | ||
3215 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3216 | return 0; | |
3217 | } | |
3218 | ||
b08c1d97 LC |
3219 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3220 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3221 | { |
fe0f2de3 IP |
3222 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3223 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3224 | int ret; |
3225 | ||
b08c1d97 LC |
3226 | lockdep_assert_held(&mvm->mutex); |
3227 | ||
53a9d61e | 3228 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3229 | |
fe0f2de3 IP |
3230 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3231 | if (!phy_ctxt) { | |
3232 | ret = -ENOSPC; | |
3233 | goto out; | |
3234 | } | |
8ca151b5 | 3235 | |
dcbc3e1a | 3236 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3237 | ctx->rx_chains_static, |
3238 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3239 | if (ret) { |
3240 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3241 | goto out; | |
3242 | } | |
3243 | ||
53a9d61e | 3244 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3245 | *phy_ctxt_id = phy_ctxt->id; |
3246 | out: | |
b08c1d97 LC |
3247 | return ret; |
3248 | } | |
3249 | ||
3250 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3251 | struct ieee80211_chanctx_conf *ctx) | |
3252 | { | |
3253 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3254 | int ret; | |
3255 | ||
3256 | mutex_lock(&mvm->mutex); | |
3257 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3258 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3259 | |
8ca151b5 JB |
3260 | return ret; |
3261 | } | |
3262 | ||
b08c1d97 LC |
3263 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3264 | struct ieee80211_chanctx_conf *ctx) | |
3265 | { | |
3266 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3267 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3268 | ||
3269 | lockdep_assert_held(&mvm->mutex); | |
3270 | ||
3271 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3272 | } | |
3273 | ||
8ca151b5 JB |
3274 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3275 | struct ieee80211_chanctx_conf *ctx) | |
3276 | { | |
3277 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3278 | |
3279 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3280 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3281 | mutex_unlock(&mvm->mutex); |
3282 | } | |
3283 | ||
3284 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3285 | struct ieee80211_chanctx_conf *ctx, | |
3286 | u32 changed) | |
3287 | { | |
3288 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3289 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3290 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3291 | |
31d385ae IP |
3292 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3293 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3294 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3295 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3296 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3297 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3298 | phy_ctxt->ref, changed)) | |
3299 | return; | |
3300 | ||
8ca151b5 | 3301 | mutex_lock(&mvm->mutex); |
4d66449a | 3302 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3303 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3304 | ctx->rx_chains_static, |
3305 | ctx->rx_chains_dynamic); | |
3306 | mutex_unlock(&mvm->mutex); | |
3307 | } | |
3308 | ||
b08c1d97 LC |
3309 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3310 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3311 | struct ieee80211_chanctx_conf *ctx, |
3312 | bool switching_chanctx) | |
8ca151b5 | 3313 | { |
fe0f2de3 IP |
3314 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3315 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3316 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3317 | int ret; | |
3318 | ||
b08c1d97 | 3319 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3320 | |
fe0f2de3 | 3321 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3322 | |
3323 | switch (vif->type) { | |
3324 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3325 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3326 | if (switching_chanctx) { | |
bd3398e2 AO |
3327 | mvmvif->ap_ibss_active = true; |
3328 | break; | |
3329 | } | |
5023d966 | 3330 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3331 | /* |
3332 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3333 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3334 | */ |
3335 | ret = 0; | |
b08c1d97 | 3336 | goto out; |
8ca151b5 | 3337 | case NL80211_IFTYPE_STATION: |
2533edce | 3338 | break; |
8ca151b5 | 3339 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3340 | /* always disable PS when a monitor interface is active */ |
3341 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3342 | break; |
3343 | default: | |
3344 | ret = -EINVAL; | |
b08c1d97 | 3345 | goto out; |
8ca151b5 JB |
3346 | } |
3347 | ||
3348 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3349 | if (ret) | |
b08c1d97 | 3350 | goto out; |
8ca151b5 JB |
3351 | |
3352 | /* | |
92d85562 AB |
3353 | * Power state must be updated before quotas, |
3354 | * otherwise fw will complain. | |
3355 | */ | |
999609f1 | 3356 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3357 | |
3358 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3359 | * interfaces. For the other types, the bss_info changed flow |
3360 | * will handle quota settings. | |
3361 | */ | |
3362 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3363 | mvmvif->monitor_active = true; |
7754ae79 | 3364 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
3365 | if (ret) |
3366 | goto out_remove_binding; | |
0e39eb03 CRI |
3367 | |
3368 | ret = iwl_mvm_add_snif_sta(mvm, vif); | |
3369 | if (ret) | |
3370 | goto out_remove_binding; | |
3371 | ||
8ca151b5 JB |
3372 | } |
3373 | ||
bd3398e2 | 3374 | /* Handle binding during CSA */ |
a57c688d | 3375 | if (vif->type == NL80211_IFTYPE_AP) { |
7754ae79 | 3376 | iwl_mvm_update_quotas(mvm, false, NULL); |
3dfd3a97 | 3377 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3378 | } |
3379 | ||
4741dd04 | 3380 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3381 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3382 | ||
3383 | /* iwl_mvm_protect_session() reads directly from the | |
3384 | * device (the system time), so make sure it is | |
3385 | * available. | |
3386 | */ | |
3387 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3388 | if (ret) | |
3389 | goto out_remove_binding; | |
3390 | ||
3391 | /* Protect the session to make sure we hear the first | |
3392 | * beacon on the new channel. | |
3393 | */ | |
3394 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3395 | vif->bss_conf.beacon_int / 2, | |
3396 | true); | |
3397 | ||
3398 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3399 | ||
7754ae79 | 3400 | iwl_mvm_update_quotas(mvm, false, NULL); |
0ce04ce7 LC |
3401 | } |
3402 | ||
b08c1d97 | 3403 | goto out; |
8ca151b5 | 3404 | |
b08c1d97 | 3405 | out_remove_binding: |
8ca151b5 | 3406 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3407 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3408 | out: |
8ca151b5 JB |
3409 | if (ret) |
3410 | mvmvif->phy_ctxt = NULL; | |
3411 | return ret; | |
3412 | } | |
b08c1d97 LC |
3413 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3414 | struct ieee80211_vif *vif, | |
3415 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3416 | { |
3417 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3418 | int ret; |
8ca151b5 JB |
3419 | |
3420 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3421 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3422 | mutex_unlock(&mvm->mutex); |
3423 | ||
3424 | return ret; | |
3425 | } | |
3426 | ||
3427 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3428 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3429 | struct ieee80211_chanctx_conf *ctx, |
3430 | bool switching_chanctx) | |
b08c1d97 LC |
3431 | { |
3432 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3433 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3434 | |
3435 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3436 | |
3437 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3438 | ||
8ca151b5 | 3439 | switch (vif->type) { |
5023d966 | 3440 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3441 | goto out; |
8ca151b5 | 3442 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3443 | mvmvif->monitor_active = false; |
2533edce | 3444 | mvmvif->ps_disabled = false; |
0e39eb03 | 3445 | iwl_mvm_rm_snif_sta(mvm, vif); |
8ca151b5 | 3446 | break; |
bd3398e2 AO |
3447 | case NL80211_IFTYPE_AP: |
3448 | /* This part is triggered only during CSA */ | |
4741dd04 | 3449 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3450 | goto out; |
bd3398e2 | 3451 | |
7ef0aab6 AO |
3452 | mvmvif->csa_countdown = false; |
3453 | ||
003e5236 AO |
3454 | /* Set CS bit on all the stations */ |
3455 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3456 | ||
3457 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3458 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3459 | ||
bd3398e2 | 3460 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3461 | break; |
3462 | case NL80211_IFTYPE_STATION: | |
3463 | if (!switching_chanctx) | |
3464 | break; | |
3465 | ||
3466 | disabled_vif = vif; | |
3467 | ||
3dfd3a97 | 3468 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3469 | break; |
8ca151b5 JB |
3470 | default: |
3471 | break; | |
3472 | } | |
3473 | ||
7754ae79 | 3474 | iwl_mvm_update_quotas(mvm, false, disabled_vif); |
1e1391ca | 3475 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3476 | |
b08c1d97 | 3477 | out: |
a11e144e | 3478 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3479 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3480 | } |
3481 | ||
3482 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3483 | struct ieee80211_vif *vif, | |
3484 | struct ieee80211_chanctx_conf *ctx) | |
3485 | { | |
3486 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3487 | ||
3488 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3489 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3490 | mutex_unlock(&mvm->mutex); |
3491 | } | |
3492 | ||
50cc9574 LC |
3493 | static int |
3494 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3495 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3496 | { |
b08c1d97 LC |
3497 | int ret; |
3498 | ||
b08c1d97 | 3499 | mutex_lock(&mvm->mutex); |
f0c97783 | 3500 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3501 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3502 | ||
3503 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3504 | if (ret) { | |
3505 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3506 | goto out_reassign; | |
3507 | } | |
3508 | ||
f0c97783 LC |
3509 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3510 | true); | |
b08c1d97 LC |
3511 | if (ret) { |
3512 | IWL_ERR(mvm, | |
3513 | "failed to assign new_ctx during channel switch\n"); | |
3514 | goto out_remove; | |
3515 | } | |
3516 | ||
f697267f AN |
3517 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3518 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3519 | iwl_mvm_teardown_tdls_peers(mvm); | |
3520 | ||
b08c1d97 LC |
3521 | goto out; |
3522 | ||
3523 | out_remove: | |
3524 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3525 | ||
3526 | out_reassign: | |
6fd1fb63 | 3527 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3528 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3529 | goto out_restart; | |
3530 | } | |
3531 | ||
6fd1fb63 LC |
3532 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3533 | true)) { | |
b08c1d97 LC |
3534 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3535 | goto out_restart; | |
3536 | } | |
3537 | ||
3538 | goto out; | |
3539 | ||
3540 | out_restart: | |
3541 | /* things keep failing, better restart the hw */ | |
3542 | iwl_mvm_nic_restart(mvm, false); | |
3543 | ||
3544 | out: | |
3545 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3546 | |
3547 | return ret; | |
3548 | } | |
3549 | ||
48a256e8 LC |
3550 | static int |
3551 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3552 | struct ieee80211_vif_chanctx_switch *vifs) | |
3553 | { | |
3554 | int ret; | |
3555 | ||
3556 | mutex_lock(&mvm->mutex); | |
3557 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3558 | ||
3559 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3560 | true); | |
3561 | if (ret) { | |
3562 | IWL_ERR(mvm, | |
3563 | "failed to assign new_ctx during channel switch\n"); | |
3564 | goto out_reassign; | |
3565 | } | |
3566 | ||
3567 | goto out; | |
3568 | ||
3569 | out_reassign: | |
3570 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3571 | true)) { | |
3572 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3573 | goto out_restart; | |
3574 | } | |
3575 | ||
3576 | goto out; | |
3577 | ||
3578 | out_restart: | |
3579 | /* things keep failing, better restart the hw */ | |
3580 | iwl_mvm_nic_restart(mvm, false); | |
3581 | ||
3582 | out: | |
3583 | mutex_unlock(&mvm->mutex); | |
3584 | ||
3585 | return ret; | |
3586 | } | |
3587 | ||
50cc9574 LC |
3588 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3589 | struct ieee80211_vif_chanctx_switch *vifs, | |
3590 | int n_vifs, | |
3591 | enum ieee80211_chanctx_switch_mode mode) | |
3592 | { | |
3593 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3594 | int ret; | |
3595 | ||
3596 | /* we only support a single-vif right now */ | |
3597 | if (n_vifs > 1) | |
3598 | return -EOPNOTSUPP; | |
3599 | ||
3600 | switch (mode) { | |
3601 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3602 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3603 | break; | |
3604 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3605 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3606 | break; |
3607 | default: | |
3608 | ret = -EOPNOTSUPP; | |
3609 | break; | |
3610 | } | |
3611 | ||
b08c1d97 LC |
3612 | return ret; |
3613 | } | |
3614 | ||
8ca151b5 JB |
3615 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3616 | struct ieee80211_sta *sta, | |
3617 | bool set) | |
3618 | { | |
3619 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3620 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3621 | |
3622 | if (!mvm_sta || !mvm_sta->vif) { | |
3623 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3624 | return -EINVAL; | |
3625 | } | |
3626 | ||
3627 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3628 | } | |
3629 | ||
507cadf2 DS |
3630 | #ifdef CONFIG_NL80211_TESTMODE |
3631 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3632 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3633 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3634 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3635 | }; |
3636 | ||
3637 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3638 | struct ieee80211_vif *vif, | |
3639 | void *data, int len) | |
3640 | { | |
3641 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3642 | int err; | |
3643 | u32 noa_duration; | |
3644 | ||
3645 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
3646 | if (err) | |
3647 | return err; | |
3648 | ||
3649 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3650 | return -EINVAL; | |
3651 | ||
3652 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3653 | case IWL_MVM_TM_CMD_SET_NOA: | |
3654 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3655 | !vif->bss_conf.enable_beacon || | |
3656 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3657 | return -EINVAL; | |
3658 | ||
3659 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3660 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3661 | return -EINVAL; | |
3662 | ||
3663 | mvm->noa_duration = noa_duration; | |
3664 | mvm->noa_vif = vif; | |
3665 | ||
7754ae79 | 3666 | return iwl_mvm_update_quotas(mvm, false, NULL); |
f6c6ad42 JB |
3667 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3668 | /* must be associated client vif - ignore authorized */ | |
3669 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3670 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3671 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3672 | return -EINVAL; | |
3673 | ||
3674 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3675 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3676 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3677 | } |
3678 | ||
3679 | return -EOPNOTSUPP; | |
3680 | } | |
3681 | ||
3682 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3683 | struct ieee80211_vif *vif, | |
3684 | void *data, int len) | |
3685 | { | |
3686 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3687 | int err; | |
3688 | ||
3689 | mutex_lock(&mvm->mutex); | |
3690 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3691 | mutex_unlock(&mvm->mutex); | |
3692 | ||
3693 | return err; | |
3694 | } | |
3695 | #endif | |
3696 | ||
622e3f9b LC |
3697 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3698 | struct ieee80211_vif *vif, | |
3699 | struct ieee80211_channel_switch *chsw) | |
3700 | { | |
3701 | /* By implementing this operation, we prevent mac80211 from | |
3702 | * starting its own channel switch timer, so that we can call | |
3703 | * ieee80211_chswitch_done() ourselves at the right time | |
3704 | * (which is when the absence time event starts). | |
3705 | */ | |
3706 | ||
3707 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3708 | "dummy channel switch op\n"); | |
3709 | } | |
3710 | ||
f028905c LC |
3711 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3712 | struct ieee80211_vif *vif, | |
3713 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3714 | { |
3715 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3716 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3717 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3718 | u32 apply_time; |
f028905c | 3719 | int ret; |
bd3398e2 AO |
3720 | |
3721 | mutex_lock(&mvm->mutex); | |
664322fa | 3722 | |
81d62d5a JB |
3723 | mvmvif->csa_failed = false; |
3724 | ||
6b20d774 | 3725 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3726 | chsw->chandef.center_freq1); |
6b20d774 | 3727 | |
21023b1e | 3728 | iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); |
f35d9c55 | 3729 | |
6b20d774 LC |
3730 | switch (vif->type) { |
3731 | case NL80211_IFTYPE_AP: | |
3732 | csa_vif = | |
3733 | rcu_dereference_protected(mvm->csa_vif, | |
3734 | lockdep_is_held(&mvm->mutex)); | |
3735 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3736 | "Another CSA is already in progress")) { | |
3737 | ret = -EBUSY; | |
3738 | goto out_unlock; | |
3739 | } | |
3740 | ||
d3a108a4 AO |
3741 | /* we still didn't unblock tx. prevent new CS meanwhile */ |
3742 | if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, | |
3743 | lockdep_is_held(&mvm->mutex))) { | |
3744 | ret = -EBUSY; | |
3745 | goto out_unlock; | |
3746 | } | |
3747 | ||
6b20d774 | 3748 | rcu_assign_pointer(mvm->csa_vif, vif); |
7ef0aab6 | 3749 | |
7ef0aab6 AO |
3750 | if (WARN_ONCE(mvmvif->csa_countdown, |
3751 | "Previous CSA countdown didn't complete")) { | |
3752 | ret = -EBUSY; | |
3753 | goto out_unlock; | |
3754 | } | |
3755 | ||
d3a108a4 AO |
3756 | mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; |
3757 | ||
6b20d774 | 3758 | break; |
dc88b4ba | 3759 | case NL80211_IFTYPE_STATION: |
03098268 AE |
3760 | if (mvmvif->lqm_active) |
3761 | iwl_mvm_send_lqm_cmd(vif, | |
3762 | LQM_CMD_OPERATION_STOP_MEASUREMENT, | |
3763 | 0, 0); | |
3764 | ||
4500e133 LC |
3765 | /* Schedule the time event to a bit before beacon 1, |
3766 | * to make sure we're in the new channel when the | |
3767 | * GO/AP arrives. | |
3768 | */ | |
3769 | apply_time = chsw->device_timestamp + | |
3770 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3771 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3772 | |
3773 | if (chsw->block_tx) | |
3774 | iwl_mvm_csa_client_absent(mvm, vif); | |
3775 | ||
4500e133 | 3776 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3777 | apply_time); |
c6e0a3e0 LC |
3778 | if (mvmvif->bf_data.bf_enabled) { |
3779 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3780 | if (ret) | |
3781 | goto out_unlock; | |
3782 | } | |
3783 | ||
dc88b4ba | 3784 | break; |
6b20d774 LC |
3785 | default: |
3786 | break; | |
3787 | } | |
bd3398e2 | 3788 | |
f6c34820 LC |
3789 | mvmvif->ps_disabled = true; |
3790 | ||
3791 | ret = iwl_mvm_power_update_ps(mvm); | |
3792 | if (ret) | |
3793 | goto out_unlock; | |
f028905c | 3794 | |
e198f5e7 AN |
3795 | /* we won't be on this channel any longer */ |
3796 | iwl_mvm_teardown_tdls_peers(mvm); | |
3797 | ||
bd3398e2 AO |
3798 | out_unlock: |
3799 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3800 | |
3801 | return ret; | |
bd3398e2 AO |
3802 | } |
3803 | ||
f6c34820 LC |
3804 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3805 | struct ieee80211_vif *vif) | |
3806 | { | |
3807 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3808 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3809 | int ret; | |
3810 | ||
3811 | mutex_lock(&mvm->mutex); | |
3812 | ||
81d62d5a JB |
3813 | if (mvmvif->csa_failed) { |
3814 | mvmvif->csa_failed = false; | |
3815 | ret = -EIO; | |
3816 | goto out_unlock; | |
3817 | } | |
3818 | ||
a57c688d LC |
3819 | if (vif->type == NL80211_IFTYPE_STATION) { |
3820 | struct iwl_mvm_sta *mvmsta; | |
3821 | ||
3822 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3823 | mvmvif->ap_sta_id); | |
3824 | ||
3825 | if (WARN_ON(!mvmsta)) { | |
3826 | ret = -EIO; | |
3827 | goto out_unlock; | |
3828 | } | |
3829 | ||
3830 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
3831 | ||
3832 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
3833 | |
3834 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
3835 | if (ret) | |
3836 | goto out_unlock; | |
686e7fe1 LC |
3837 | |
3838 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
3839 | } |
3840 | ||
f6c34820 LC |
3841 | mvmvif->ps_disabled = false; |
3842 | ||
3843 | ret = iwl_mvm_power_update_ps(mvm); | |
3844 | ||
a57c688d | 3845 | out_unlock: |
f6c34820 LC |
3846 | mutex_unlock(&mvm->mutex); |
3847 | ||
3848 | return ret; | |
3849 | } | |
3850 | ||
c5b0e7c0 EG |
3851 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
3852 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
3853 | { | |
3854 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3855 | struct iwl_mvm_vif *mvmvif; | |
3856 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
3857 | struct ieee80211_sta *sta; |
3858 | int i; | |
3859 | u32 msk = 0; | |
c5b0e7c0 EG |
3860 | |
3861 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
3862 | return; | |
3863 | ||
24afba76 LK |
3864 | /* Make sure we're done with the deferred traffic before flushing */ |
3865 | if (iwl_mvm_is_dqa_supported(mvm)) | |
3866 | flush_work(&mvm->add_stream_wk); | |
3867 | ||
c5b0e7c0 EG |
3868 | mutex_lock(&mvm->mutex); |
3869 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 3870 | |
a0f6bf2a AN |
3871 | /* flush the AP-station and all TDLS peers */ |
3872 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
3873 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
3874 | lockdep_is_held(&mvm->mutex)); | |
3875 | if (IS_ERR_OR_NULL(sta)) | |
3876 | continue; | |
3877 | ||
3878 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3879 | if (mvmsta->vif != vif) | |
3880 | continue; | |
3881 | ||
3882 | /* make sure only TDLS peers or the AP are flushed */ | |
3883 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
3884 | ||
3885 | msk |= mvmsta->tfd_queue_msk; | |
480acbce | 3886 | } |
c5b0e7c0 | 3887 | |
6d440b25 | 3888 | if (drop) { |
5888a40c | 3889 | if (iwl_mvm_flush_tx_path(mvm, msk, 0)) |
6d440b25 EG |
3890 | IWL_ERR(mvm, "flush request fail\n"); |
3891 | mutex_unlock(&mvm->mutex); | |
3892 | } else { | |
3893 | mutex_unlock(&mvm->mutex); | |
4e6c48e0 | 3894 | |
6d440b25 EG |
3895 | /* this can take a while, and we may need/want other operations |
3896 | * to succeed while doing this, so do it without the mutex held | |
3897 | */ | |
3898 | iwl_trans_wait_tx_queue_empty(mvm->trans, msk); | |
3899 | } | |
c5b0e7c0 EG |
3900 | } |
3901 | ||
91a8bcde JB |
3902 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
3903 | struct survey_info *survey) | |
3904 | { | |
3905 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3906 | int ret; | |
3907 | ||
3908 | memset(survey, 0, sizeof(*survey)); | |
3909 | ||
3910 | /* only support global statistics right now */ | |
3911 | if (idx != 0) | |
3912 | return -ENOENT; | |
3913 | ||
280a3efa JB |
3914 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
3915 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
91a8bcde JB |
3916 | return -ENOENT; |
3917 | ||
3918 | mutex_lock(&mvm->mutex); | |
3919 | ||
3920 | if (mvm->ucode_loaded) { | |
33cef925 | 3921 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
3922 | if (ret) |
3923 | goto out; | |
3924 | } | |
3925 | ||
3926 | survey->filled = SURVEY_INFO_TIME | | |
3927 | SURVEY_INFO_TIME_RX | | |
3928 | SURVEY_INFO_TIME_TX | | |
3929 | SURVEY_INFO_TIME_SCAN; | |
3930 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
3931 | mvm->radio_stats.on_time_rf; | |
3932 | do_div(survey->time, USEC_PER_MSEC); | |
3933 | ||
3934 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
3935 | mvm->radio_stats.rx_time; | |
3936 | do_div(survey->time_rx, USEC_PER_MSEC); | |
3937 | ||
3938 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
3939 | mvm->radio_stats.tx_time; | |
3940 | do_div(survey->time_tx, USEC_PER_MSEC); | |
3941 | ||
3942 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
3943 | mvm->radio_stats.on_time_scan; | |
3944 | do_div(survey->time_scan, USEC_PER_MSEC); | |
3945 | ||
10a7c028 | 3946 | ret = 0; |
91a8bcde JB |
3947 | out: |
3948 | mutex_unlock(&mvm->mutex); | |
3949 | return ret; | |
3950 | } | |
3951 | ||
33cef925 JB |
3952 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
3953 | struct ieee80211_vif *vif, | |
3954 | struct ieee80211_sta *sta, | |
3955 | struct station_info *sinfo) | |
3956 | { | |
3957 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3958 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3959 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3960 | ||
988b5968 SS |
3961 | if (mvmsta->avg_energy) { |
3962 | sinfo->signal_avg = mvmsta->avg_energy; | |
3963 | sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG); | |
3964 | } | |
3965 | ||
280a3efa JB |
3966 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
3967 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
33cef925 JB |
3968 | return; |
3969 | ||
3970 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
3971 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
3972 | return; | |
3973 | ||
3974 | if (!vif->bss_conf.assoc) | |
3975 | return; | |
3976 | ||
3977 | mutex_lock(&mvm->mutex); | |
3978 | ||
3979 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
3980 | goto unlock; | |
3981 | ||
3982 | if (iwl_mvm_request_statistics(mvm, false)) | |
3983 | goto unlock; | |
3984 | ||
3985 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
3986 | mvmvif->beacon_stats.accu_num_beacons; | |
3987 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
3988 | if (mvmvif->beacon_stats.avg_signal) { | |
3989 | /* firmware only reports a value after RXing a few beacons */ | |
3990 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
3991 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
3992 | } | |
3993 | unlock: | |
3994 | mutex_unlock(&mvm->mutex); | |
3995 | } | |
3996 | ||
4203263d EG |
3997 | static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, |
3998 | struct ieee80211_vif *vif, | |
3999 | const struct ieee80211_event *event) | |
d42f5350 | 4000 | { |
5d4f929e | 4001 | #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ |
d42f5350 EG |
4002 | do { \ |
4003 | if ((_cnt) && --(_cnt)) \ | |
4004 | break; \ | |
5d4f929e | 4005 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ |
d42f5350 EG |
4006 | } while (0) |
4007 | ||
d42f5350 EG |
4008 | struct iwl_fw_dbg_trigger_tlv *trig; |
4009 | struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
d42f5350 EG |
4010 | |
4011 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) | |
4012 | return; | |
4013 | ||
d42f5350 EG |
4014 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); |
4015 | trig_mlme = (void *)trig->data; | |
4016 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4017 | return; | |
4018 | ||
d42f5350 EG |
4019 | if (event->u.mlme.data == ASSOC_EVENT) { |
4020 | if (event->u.mlme.status == MLME_DENIED) | |
4021 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4022 | trig_mlme->stop_assoc_denied, | |
4023 | "DENIED ASSOC: reason %d", | |
4024 | event->u.mlme.reason); | |
4025 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4026 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4027 | trig_mlme->stop_assoc_timeout, | |
4028 | "ASSOC TIMEOUT"); | |
4029 | } else if (event->u.mlme.data == AUTH_EVENT) { | |
4030 | if (event->u.mlme.status == MLME_DENIED) | |
4031 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4032 | trig_mlme->stop_auth_denied, | |
4033 | "DENIED AUTH: reason %d", | |
4034 | event->u.mlme.reason); | |
4035 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4036 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4037 | trig_mlme->stop_auth_timeout, | |
4038 | "AUTH TIMEOUT"); | |
4039 | } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { | |
4040 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4041 | trig_mlme->stop_rx_deauth, | |
4042 | "DEAUTH RX %d", event->u.mlme.reason); | |
4043 | } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { | |
4044 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4045 | trig_mlme->stop_tx_deauth, | |
4046 | "DEAUTH TX %d", event->u.mlme.reason); | |
4047 | } | |
4048 | #undef CHECK_MLME_TRIGGER | |
4049 | } | |
4050 | ||
4203263d EG |
4051 | static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, |
4052 | struct ieee80211_vif *vif, | |
4053 | const struct ieee80211_event *event) | |
4054 | { | |
4055 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4056 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4057 | ||
4058 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4059 | return; | |
4060 | ||
4061 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4062 | ba_trig = (void *)trig->data; | |
4063 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4064 | return; | |
4065 | ||
4066 | if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) | |
4067 | return; | |
4068 | ||
4069 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4070 | "BAR received from %pM, tid %d, ssn %d", | |
4071 | event->u.ba.sta->addr, event->u.ba.tid, | |
4072 | event->u.ba.ssn); | |
4073 | } | |
4074 | ||
4075 | static void | |
4076 | iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, | |
4077 | struct ieee80211_vif *vif, | |
4078 | const struct ieee80211_event *event) | |
4079 | { | |
4080 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4081 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4082 | ||
4083 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4084 | return; | |
4085 | ||
4086 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4087 | ba_trig = (void *)trig->data; | |
4088 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4089 | return; | |
4090 | ||
4091 | if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) | |
4092 | return; | |
4093 | ||
4094 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4095 | "Frame from %pM timed out, tid %d", | |
4096 | event->u.ba.sta->addr, event->u.ba.tid); | |
4097 | } | |
4098 | ||
4099 | static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, | |
4100 | struct ieee80211_vif *vif, | |
4101 | const struct ieee80211_event *event) | |
4102 | { | |
4103 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4104 | ||
4105 | switch (event->type) { | |
4106 | case MLME_EVENT: | |
4107 | iwl_mvm_event_mlme_callback(mvm, vif, event); | |
4108 | break; | |
4109 | case BAR_RX_EVENT: | |
4110 | iwl_mvm_event_bar_rx_callback(mvm, vif, event); | |
4111 | break; | |
4112 | case BA_FRAME_TIMEOUT: | |
4113 | iwl_mvm_event_frame_timeout_callback(mvm, vif, event); | |
4114 | break; | |
4115 | default: | |
4116 | break; | |
4117 | } | |
4118 | } | |
4119 | ||
d0ff5d22 SS |
4120 | void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, |
4121 | struct iwl_mvm_internal_rxq_notif *notif, | |
4122 | u32 size) | |
0636b938 | 4123 | { |
0636b938 SS |
4124 | DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq); |
4125 | u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; | |
4126 | int ret; | |
4127 | ||
4128 | lockdep_assert_held(&mvm->mutex); | |
4129 | ||
4130 | if (!iwl_mvm_has_new_rx_api(mvm)) | |
4131 | return; | |
4132 | ||
d0ff5d22 SS |
4133 | notif->cookie = mvm->queue_sync_cookie; |
4134 | ||
4135 | if (notif->sync) | |
4136 | atomic_set(&mvm->queue_sync_counter, | |
4137 | mvm->trans->num_rx_queues); | |
0636b938 | 4138 | |
d0ff5d22 | 4139 | ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size); |
0636b938 SS |
4140 | if (ret) { |
4141 | IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); | |
4142 | goto out; | |
4143 | } | |
d0ff5d22 SS |
4144 | |
4145 | if (notif->sync) | |
4146 | ret = wait_event_timeout(notif_waitq, | |
4147 | atomic_read(&mvm->queue_sync_counter) == 0, | |
4148 | HZ); | |
0636b938 SS |
4149 | WARN_ON_ONCE(!ret); |
4150 | ||
4151 | out: | |
4152 | atomic_set(&mvm->queue_sync_counter, 0); | |
4153 | mvm->queue_sync_cookie++; | |
4154 | } | |
4155 | ||
4156 | static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) | |
4157 | { | |
4158 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
d0ff5d22 SS |
4159 | struct iwl_mvm_internal_rxq_notif data = { |
4160 | .type = IWL_MVM_RXQ_EMPTY, | |
4161 | .sync = 1, | |
4162 | }; | |
0636b938 SS |
4163 | |
4164 | mutex_lock(&mvm->mutex); | |
d0ff5d22 | 4165 | iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); |
0636b938 SS |
4166 | mutex_unlock(&mvm->mutex); |
4167 | } | |
4168 | ||
e5209263 | 4169 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
4170 | .tx = iwl_mvm_mac_tx, |
4171 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
4172 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 4173 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
4174 | .stop = iwl_mvm_mac_stop, |
4175 | .add_interface = iwl_mvm_mac_add_interface, | |
4176 | .remove_interface = iwl_mvm_mac_remove_interface, | |
4177 | .config = iwl_mvm_mac_config, | |
e59647ea | 4178 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 | 4179 | .configure_filter = iwl_mvm_configure_filter, |
effd1929 | 4180 | .config_iface_filter = iwl_mvm_config_iface_filter, |
8ca151b5 JB |
4181 | .bss_info_changed = iwl_mvm_bss_info_changed, |
4182 | .hw_scan = iwl_mvm_mac_hw_scan, | |
4183 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 4184 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
4185 | .sta_state = iwl_mvm_mac_sta_state, |
4186 | .sta_notify = iwl_mvm_mac_sta_notify, | |
4187 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 4188 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 4189 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 4190 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
4191 | .conf_tx = iwl_mvm_mac_conf_tx, |
4192 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 4193 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 4194 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
4195 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
4196 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
4197 | .set_key = iwl_mvm_mac_set_key, |
4198 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
4199 | .remain_on_channel = iwl_mvm_roc, | |
4200 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
4201 | .add_chanctx = iwl_mvm_add_chanctx, |
4202 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
4203 | .change_chanctx = iwl_mvm_change_chanctx, | |
4204 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
4205 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 4206 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 4207 | |
5023d966 JB |
4208 | .start_ap = iwl_mvm_start_ap_ibss, |
4209 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
4210 | .join_ibss = iwl_mvm_start_ap_ibss, | |
4211 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
4212 | |
4213 | .set_tim = iwl_mvm_set_tim, | |
4214 | ||
622e3f9b | 4215 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 4216 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 4217 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 4218 | |
1d3c3f63 AN |
4219 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
4220 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
4221 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
4222 | ||
d42f5350 EG |
4223 | .event_callback = iwl_mvm_mac_event_callback, |
4224 | ||
0636b938 SS |
4225 | .sync_rx_queues = iwl_mvm_sync_rx_queues, |
4226 | ||
507cadf2 DS |
4227 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
4228 | ||
8ca151b5 JB |
4229 | #ifdef CONFIG_PM_SLEEP |
4230 | /* look at d3.c */ | |
4231 | .suspend = iwl_mvm_suspend, | |
4232 | .resume = iwl_mvm_resume, | |
4233 | .set_wakeup = iwl_mvm_set_wakeup, | |
4234 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
4235 | #if IS_ENABLED(CONFIG_IPV6) | |
4236 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
4237 | #endif | |
4238 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
4239 | #endif | |
91a8bcde | 4240 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 4241 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
8ca151b5 | 4242 | }; |