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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. |
26d6c16b SS |
9 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
10 | * Copyright(c) 2016 - 2017 Intel Deutschland GmbH | |
63dd5d02 | 11 | * Copyright(c) 2018 Intel Corporation |
8ca151b5 JB |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of version 2 of the GNU General Public License as | |
15 | * published by the Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
25 | * USA | |
26 | * | |
27 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 28 | * in the file called COPYING. |
8ca151b5 JB |
29 | * |
30 | * Contact Information: | |
cb2f8277 | 31 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
32 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
33 | * | |
34 | * BSD LICENSE | |
35 | * | |
51368bf7 | 36 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
26d6c16b SS |
37 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
38 | * Copyright(c) 2016 - 2017 Intel Deutschland GmbH | |
8ca151b5 JB |
39 | * All rights reserved. |
40 | * | |
41 | * Redistribution and use in source and binary forms, with or without | |
42 | * modification, are permitted provided that the following conditions | |
43 | * are met: | |
44 | * | |
45 | * * Redistributions of source code must retain the above copyright | |
46 | * notice, this list of conditions and the following disclaimer. | |
47 | * * Redistributions in binary form must reproduce the above copyright | |
48 | * notice, this list of conditions and the following disclaimer in | |
49 | * the documentation and/or other materials provided with the | |
50 | * distribution. | |
51 | * * Neither the name Intel Corporation nor the names of its | |
52 | * contributors may be used to endorse or promote products derived | |
53 | * from this software without specific prior written permission. | |
54 | * | |
55 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
56 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
57 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
58 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
59 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
60 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
61 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
62 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
63 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
64 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
65 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
66 | * | |
67 | *****************************************************************************/ | |
68 | #include <linux/kernel.h> | |
69 | #include <linux/slab.h> | |
70 | #include <linux/skbuff.h> | |
71 | #include <linux/netdevice.h> | |
72 | #include <linux/etherdevice.h> | |
f0c2646a | 73 | #include <linux/ip.h> |
2ee8f021 | 74 | #include <linux/if_arp.h> |
2f89a5d7 | 75 | #include <linux/time.h> |
8ca151b5 | 76 | #include <net/mac80211.h> |
7b1dd048 | 77 | #include <net/ieee80211_radiotap.h> |
f0c2646a | 78 | #include <net/tcp.h> |
8ca151b5 JB |
79 | |
80 | #include "iwl-op-mode.h" | |
81 | #include "iwl-io.h" | |
82 | #include "mvm.h" | |
83 | #include "sta.h" | |
84 | #include "time-event.h" | |
85 | #include "iwl-eeprom-parse.h" | |
8ca151b5 | 86 | #include "iwl-phy-db.h" |
507cadf2 | 87 | #include "testmode.h" |
d962f9b1 | 88 | #include "fw/error-dump.h" |
655e6d6d | 89 | #include "iwl-prph.h" |
88931cc9 | 90 | #include "iwl-nvm-parse.h" |
8ca151b5 JB |
91 | |
92 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
93 | { | |
94 | .max = 1, | |
8eb38710 | 95 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 96 | }, |
3c15a0fb JB |
97 | { |
98 | .max = 1, | |
8eb38710 IP |
99 | .types = BIT(NL80211_IFTYPE_AP) | |
100 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
101 | BIT(NL80211_IFTYPE_P2P_GO), |
102 | }, | |
103 | { | |
104 | .max = 1, | |
105 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
106 | }, | |
8ca151b5 JB |
107 | }; |
108 | ||
109 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
110 | { | |
2624a5ca | 111 | .num_different_channels = 2, |
8ca151b5 JB |
112 | .max_interfaces = 3, |
113 | .limits = iwl_mvm_limits, | |
114 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
115 | }, | |
116 | }; | |
117 | ||
77736923 | 118 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
119 | /* |
120 | * Use the reserved field to indicate magic values. | |
121 | * these values will only be used internally by the driver, | |
122 | * and won't make it to the fw (reserved will be 0). | |
123 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
124 | * be the vif's ip address. in case there is not a single | |
125 | * ip address (0, or more than 1), this attribute will | |
126 | * be skipped. | |
127 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
128 | * the LSB bytes of the vif's mac address | |
129 | */ | |
130 | enum { | |
131 | BC_FILTER_MAGIC_NONE = 0, | |
132 | BC_FILTER_MAGIC_IP, | |
133 | BC_FILTER_MAGIC_MAC, | |
134 | }; | |
135 | ||
77736923 EP |
136 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
137 | { | |
138 | /* arp */ | |
139 | .discard = 0, | |
140 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
141 | .attrs = { | |
142 | { | |
143 | /* frame type - arp, hw type - ethernet */ | |
144 | .offset_type = | |
145 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
146 | .offset = sizeof(rfc1042_header), | |
147 | .val = cpu_to_be32(0x08060001), | |
148 | .mask = cpu_to_be32(0xffffffff), | |
149 | }, | |
2ee8f021 EP |
150 | { |
151 | /* arp dest ip */ | |
152 | .offset_type = | |
153 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
154 | .offset = sizeof(rfc1042_header) + 2 + | |
155 | sizeof(struct arphdr) + | |
156 | ETH_ALEN + sizeof(__be32) + | |
157 | ETH_ALEN, | |
158 | .mask = cpu_to_be32(0xffffffff), | |
159 | /* mark it as special field */ | |
160 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
161 | }, | |
162 | }, | |
163 | }, | |
164 | { | |
165 | /* dhcp offer bcast */ | |
166 | .discard = 0, | |
167 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
168 | .attrs = { | |
169 | { | |
170 | /* udp dest port - 68 (bootp client)*/ | |
171 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
172 | .offset = offsetof(struct udphdr, dest), | |
173 | .val = cpu_to_be32(0x00440000), | |
174 | .mask = cpu_to_be32(0xffff0000), | |
175 | }, | |
176 | { | |
177 | /* dhcp - lsb bytes of client hw address */ | |
178 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
179 | .offset = 38, | |
180 | .mask = cpu_to_be32(0xffffffff), | |
181 | /* mark it as special field */ | |
182 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
183 | }, | |
77736923 EP |
184 | }, |
185 | }, | |
186 | /* last filter must be empty */ | |
187 | {}, | |
188 | }; | |
189 | #endif | |
190 | ||
7498cf4c EP |
191 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
192 | { | |
7bb426ea | 193 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
194 | return; |
195 | ||
196 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
197 | spin_lock_bh(&mvm->refs_lock); |
198 | mvm->refs[ref_type]++; | |
199 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
200 | iwl_trans_ref(mvm->trans); |
201 | } | |
202 | ||
203 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
204 | { | |
7bb426ea | 205 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
206 | return; |
207 | ||
208 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
576eeee9 | 209 | spin_lock_bh(&mvm->refs_lock); |
16c45822 SS |
210 | if (WARN_ON(!mvm->refs[ref_type])) { |
211 | spin_unlock_bh(&mvm->refs_lock); | |
212 | return; | |
213 | } | |
214 | mvm->refs[ref_type]--; | |
576eeee9 | 215 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
216 | iwl_trans_unref(mvm->trans); |
217 | } | |
218 | ||
576eeee9 EP |
219 | static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
220 | enum iwl_mvm_ref_type except_ref) | |
7498cf4c | 221 | { |
576eeee9 | 222 | int i, j; |
7498cf4c | 223 | |
7bb426ea | 224 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
225 | return; |
226 | ||
576eeee9 EP |
227 | spin_lock_bh(&mvm->refs_lock); |
228 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
229 | if (except_ref == i || !mvm->refs[i]) | |
7498cf4c EP |
230 | continue; |
231 | ||
576eeee9 EP |
232 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
233 | i, mvm->refs[i]); | |
234 | for (j = 0; j < mvm->refs[i]; j++) | |
235 | iwl_trans_unref(mvm->trans); | |
236 | mvm->refs[i] = 0; | |
7498cf4c | 237 | } |
576eeee9 | 238 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
239 | } |
240 | ||
f4cf8680 EP |
241 | bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) |
242 | { | |
243 | int i; | |
244 | bool taken = false; | |
245 | ||
246 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
247 | return true; | |
248 | ||
249 | spin_lock_bh(&mvm->refs_lock); | |
250 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
251 | if (mvm->refs[i]) { | |
252 | taken = true; | |
253 | break; | |
254 | } | |
255 | } | |
256 | spin_unlock_bh(&mvm->refs_lock); | |
257 | ||
258 | return taken; | |
259 | } | |
260 | ||
576eeee9 | 261 | int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
d40fc489 GG |
262 | { |
263 | iwl_mvm_ref(mvm, ref_type); | |
264 | ||
265 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
266 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), | |
267 | HZ)) { | |
268 | WARN_ON_ONCE(1); | |
269 | iwl_mvm_unref(mvm, ref_type); | |
270 | return -EIO; | |
271 | } | |
272 | ||
273 | return 0; | |
274 | } | |
275 | ||
fe0f2de3 IP |
276 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
277 | { | |
278 | int i; | |
279 | ||
280 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
281 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
282 | mvm->phy_ctxts[i].id = i; | |
283 | mvm->phy_ctxts[i].ref = 0; | |
284 | } | |
285 | } | |
286 | ||
88931cc9 | 287 | struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, |
8ba2d7a1 | 288 | const char *alpha2, |
47c8b154 JD |
289 | enum iwl_mcc_source src_id, |
290 | bool *changed) | |
88931cc9 AN |
291 | { |
292 | struct ieee80211_regdomain *regd = NULL; | |
293 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
294 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
295 | struct iwl_mcc_update_resp *resp; | |
296 | ||
297 | IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); | |
298 | ||
8ba2d7a1 | 299 | lockdep_assert_held(&mvm->mutex); |
88931cc9 | 300 | |
8ba2d7a1 | 301 | resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); |
88931cc9 AN |
302 | if (IS_ERR_OR_NULL(resp)) { |
303 | IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", | |
b8c474d9 | 304 | PTR_ERR_OR_ZERO(resp)); |
8ba2d7a1 | 305 | goto out; |
88931cc9 AN |
306 | } |
307 | ||
47c8b154 JD |
308 | if (changed) |
309 | *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); | |
310 | ||
162ee3c9 | 311 | regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, |
88931cc9 AN |
312 | __le32_to_cpu(resp->n_channels), |
313 | resp->channels, | |
314 | __le16_to_cpu(resp->mcc)); | |
8ba2d7a1 EH |
315 | /* Store the return source id */ |
316 | src_id = resp->source_id; | |
88931cc9 AN |
317 | kfree(resp); |
318 | if (IS_ERR_OR_NULL(regd)) { | |
319 | IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", | |
b8c474d9 | 320 | PTR_ERR_OR_ZERO(regd)); |
8ba2d7a1 | 321 | goto out; |
88931cc9 AN |
322 | } |
323 | ||
8ba2d7a1 EH |
324 | IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", |
325 | regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); | |
88931cc9 | 326 | mvm->lar_regdom_set = true; |
8ba2d7a1 | 327 | mvm->mcc_src = src_id; |
88931cc9 | 328 | |
8ba2d7a1 | 329 | out: |
88931cc9 AN |
330 | return regd; |
331 | } | |
332 | ||
47c8b154 JD |
333 | void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) |
334 | { | |
335 | bool changed; | |
336 | struct ieee80211_regdomain *regd; | |
337 | ||
338 | if (!iwl_mvm_is_lar_supported(mvm)) | |
339 | return; | |
340 | ||
341 | regd = iwl_mvm_get_current_regdomain(mvm, &changed); | |
342 | if (!IS_ERR_OR_NULL(regd)) { | |
343 | /* only update the regulatory core if changed */ | |
344 | if (changed) | |
345 | regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); | |
346 | ||
347 | kfree(regd); | |
348 | } | |
349 | } | |
350 | ||
351 | struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, | |
352 | bool *changed) | |
8ba2d7a1 EH |
353 | { |
354 | return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", | |
355 | iwl_mvm_is_wifi_mcc_supported(mvm) ? | |
356 | MCC_SOURCE_GET_CURRENT : | |
47c8b154 | 357 | MCC_SOURCE_OLD_FW, changed); |
8ba2d7a1 EH |
358 | } |
359 | ||
360 | int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) | |
361 | { | |
362 | enum iwl_mcc_source used_src; | |
363 | struct ieee80211_regdomain *regd; | |
b6e160ab AN |
364 | int ret; |
365 | bool changed; | |
8ba2d7a1 EH |
366 | const struct ieee80211_regdomain *r = |
367 | rtnl_dereference(mvm->hw->wiphy->regd); | |
368 | ||
369 | if (!r) | |
b6e160ab | 370 | return -ENOENT; |
8ba2d7a1 EH |
371 | |
372 | /* save the last source in case we overwrite it below */ | |
373 | used_src = mvm->mcc_src; | |
374 | if (iwl_mvm_is_wifi_mcc_supported(mvm)) { | |
375 | /* Notify the firmware we support wifi location updates */ | |
47c8b154 | 376 | regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
8ba2d7a1 EH |
377 | if (!IS_ERR_OR_NULL(regd)) |
378 | kfree(regd); | |
379 | } | |
380 | ||
381 | /* Now set our last stored MCC and source */ | |
b6e160ab AN |
382 | regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, |
383 | &changed); | |
8ba2d7a1 EH |
384 | if (IS_ERR_OR_NULL(regd)) |
385 | return -EIO; | |
386 | ||
b6e160ab AN |
387 | /* update cfg80211 if the regdomain was changed */ |
388 | if (changed) | |
389 | ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); | |
390 | else | |
391 | ret = 0; | |
8ba2d7a1 | 392 | |
b6e160ab AN |
393 | kfree(regd); |
394 | return ret; | |
8ba2d7a1 EH |
395 | } |
396 | ||
8ca151b5 JB |
397 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
398 | { | |
399 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 400 | int num_mac, ret, i; |
5f4c02e2 JB |
401 | static const u32 mvm_ciphers[] = { |
402 | WLAN_CIPHER_SUITE_WEP40, | |
403 | WLAN_CIPHER_SUITE_WEP104, | |
404 | WLAN_CIPHER_SUITE_TKIP, | |
405 | WLAN_CIPHER_SUITE_CCMP, | |
406 | }; | |
8ca151b5 JB |
407 | |
408 | /* Tell mac80211 our characteristics */ | |
30686bf7 JB |
409 | ieee80211_hw_set(hw, SIGNAL_DBM); |
410 | ieee80211_hw_set(hw, SPECTRUM_MGMT); | |
411 | ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS); | |
412 | ieee80211_hw_set(hw, QUEUE_CONTROL); | |
413 | ieee80211_hw_set(hw, WANT_MONITOR_VIF); | |
414 | ieee80211_hw_set(hw, SUPPORTS_PS); | |
415 | ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); | |
416 | ieee80211_hw_set(hw, AMPDU_AGGREGATION); | |
417 | ieee80211_hw_set(hw, TIMING_BEACON_ONLY); | |
418 | ieee80211_hw_set(hw, CONNECTION_MONITOR); | |
419 | ieee80211_hw_set(hw, CHANCTX_STA_CSA); | |
420 | ieee80211_hw_set(hw, SUPPORT_FAST_XMIT); | |
421 | ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS); | |
909ddf0b | 422 | ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); |
30433d3b | 423 | ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR); |
ecaf71de | 424 | |
4243edb4 | 425 | if (iwl_mvm_has_tlc_offload(mvm)) { |
ecaf71de GG |
426 | ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW); |
427 | ieee80211_hw_set(hw, HAS_RATE_CONTROL); | |
428 | } | |
429 | ||
b915c101 SS |
430 | if (iwl_mvm_has_new_rx_api(mvm)) |
431 | ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); | |
960f864b JB |
432 | |
433 | if (fw_has_capa(&mvm->fw->ucode_capa, | |
434 | IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) { | |
65e25482 | 435 | ieee80211_hw_set(hw, AP_LINK_PS); |
960f864b JB |
436 | } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) { |
437 | /* | |
438 | * we absolutely need this for the new TX API since that comes | |
439 | * with many more queues than the current code can deal with | |
440 | * for station powersave | |
441 | */ | |
442 | return -EINVAL; | |
443 | } | |
8ca151b5 | 444 | |
80938abc JB |
445 | if (mvm->trans->num_rx_queues > 1) |
446 | ieee80211_hw_set(hw, USES_RSS); | |
447 | ||
2d7cf549 JB |
448 | if (mvm->trans->max_skb_frags) |
449 | hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG; | |
450 | ||
c8f54701 | 451 | hw->queues = IEEE80211_MAX_QUEUES; |
398e8c6c | 452 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
453 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
454 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
339b3086 ES |
455 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
456 | IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; | |
371a17ed JB |
457 | |
458 | hw->radiotap_timestamp.units_pos = | |
459 | IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US | | |
460 | IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ; | |
461 | /* this is the case for CCK frames, it's better (only 8) for OFDM */ | |
462 | hw->radiotap_timestamp.accuracy = 22; | |
463 | ||
4243edb4 | 464 | if (!iwl_mvm_has_tlc_offload(mvm)) |
9f66a397 GG |
465 | hw->rate_control_algorithm = RS_NAME; |
466 | ||
848955cc JB |
467 | hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
468 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 | 469 | |
8e160ab8 | 470 | BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6); |
5f4c02e2 JB |
471 | memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers)); |
472 | hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers); | |
473 | hw->wiphy->cipher_suites = mvm->ciphers; | |
474 | ||
2a53d166 AB |
475 | if (iwl_mvm_has_new_rx_api(mvm)) { |
476 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
477 | WLAN_CIPHER_SUITE_GCMP; | |
478 | hw->wiphy->n_cipher_suites++; | |
479 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
480 | WLAN_CIPHER_SUITE_GCMP_256; | |
481 | hw->wiphy->n_cipher_suites++; | |
482 | } | |
483 | ||
4b87e5af LC |
484 | /* Enable 11w if software crypto is not enabled (as the |
485 | * firmware will interpret some mgmt packets, so enabling it | |
486 | * with software crypto isn't safe). | |
8ca151b5 | 487 | */ |
3b37f4c9 | 488 | if (!iwlwifi_mod_params.swcrypto) { |
30686bf7 | 489 | ieee80211_hw_set(hw, MFP_CAPABLE); |
5f4c02e2 JB |
490 | mvm->ciphers[hw->wiphy->n_cipher_suites] = |
491 | WLAN_CIPHER_SUITE_AES_CMAC; | |
492 | hw->wiphy->n_cipher_suites++; | |
8e160ab8 AB |
493 | if (iwl_mvm_has_new_rx_api(mvm)) { |
494 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
495 | WLAN_CIPHER_SUITE_BIP_GMAC_128; | |
496 | hw->wiphy->n_cipher_suites++; | |
497 | mvm->ciphers[hw->wiphy->n_cipher_suites] = | |
498 | WLAN_CIPHER_SUITE_BIP_GMAC_256; | |
499 | hw->wiphy->n_cipher_suites++; | |
500 | } | |
5f4c02e2 JB |
501 | } |
502 | ||
503 | /* currently FW API supports only one optional cipher scheme */ | |
504 | if (mvm->fw->cs[0].cipher) { | |
24ddddf3 JB |
505 | const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0]; |
506 | struct ieee80211_cipher_scheme *cs = &mvm->cs[0]; | |
507 | ||
5f4c02e2 | 508 | mvm->hw->n_cipher_schemes = 1; |
24ddddf3 JB |
509 | |
510 | cs->cipher = le32_to_cpu(fwcs->cipher); | |
511 | cs->iftype = BIT(NL80211_IFTYPE_STATION); | |
512 | cs->hdr_len = fwcs->hdr_len; | |
513 | cs->pn_len = fwcs->pn_len; | |
514 | cs->pn_off = fwcs->pn_off; | |
515 | cs->key_idx_off = fwcs->key_idx_off; | |
516 | cs->key_idx_mask = fwcs->key_idx_mask; | |
517 | cs->key_idx_shift = fwcs->key_idx_shift; | |
518 | cs->mic_len = fwcs->mic_len; | |
519 | ||
520 | mvm->hw->cipher_schemes = mvm->cs; | |
521 | mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher; | |
5f4c02e2 JB |
522 | hw->wiphy->n_cipher_suites++; |
523 | } | |
8ca151b5 | 524 | |
30686bf7 | 525 | ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS); |
1f940386 LC |
526 | hw->wiphy->features |= |
527 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
3db93420 JB |
528 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | |
529 | NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
fb98be5e | 530 | |
8ca151b5 JB |
531 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
532 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 533 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
534 | |
535 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
536 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
537 | BIT(NL80211_IFTYPE_AP) | | |
538 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
539 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
540 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 541 | |
a2f73b6c | 542 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
543 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
544 | if (iwl_mvm_is_lar_supported(mvm)) | |
545 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
546 | else | |
547 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
548 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 549 | |
4b87e5af | 550 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; |
94bbed72 | 551 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 552 | |
8ca151b5 JB |
553 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
554 | hw->wiphy->n_iface_combinations = | |
555 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
556 | ||
c451e6d4 | 557 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 558 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
559 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
560 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
561 | |
562 | /* Extract MAC address */ | |
563 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
564 | hw->wiphy->addresses = mvm->addresses; | |
565 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
566 | |
567 | /* Extract additional MAC addresses if available */ | |
568 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
569 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
570 | ||
571 | for (i = 1; i < num_mac; i++) { | |
572 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 573 | ETH_ALEN); |
831e85f3 | 574 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
575 | hw->wiphy->n_addresses++; |
576 | } | |
577 | ||
fe0f2de3 IP |
578 | iwl_mvm_reset_phy_ctxts(mvm); |
579 | ||
999d2568 | 580 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
20f1a5de | 581 | |
8ca151b5 JB |
582 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
583 | ||
c7d42480 | 584 | BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); |
507e4cda LC |
585 | BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || |
586 | IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); | |
587 | ||
859d914c | 588 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
507e4cda LC |
589 | mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; |
590 | else | |
591 | mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; | |
592 | ||
57fbcce3 JB |
593 | if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels) |
594 | hw->wiphy->bands[NL80211_BAND_2GHZ] = | |
595 | &mvm->nvm_data->bands[NL80211_BAND_2GHZ]; | |
596 | if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) { | |
597 | hw->wiphy->bands[NL80211_BAND_5GHZ] = | |
598 | &mvm->nvm_data->bands[NL80211_BAND_5GHZ]; | |
8ca151b5 | 599 | |
859d914c JB |
600 | if (fw_has_capa(&mvm->fw->ucode_capa, |
601 | IWL_UCODE_TLV_CAPA_BEAMFORMER) && | |
602 | fw_has_api(&mvm->fw->ucode_capa, | |
603 | IWL_UCODE_TLV_API_LQ_SS_PARAMS)) | |
57fbcce3 | 604 | hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |= |
3d44eebf ES |
605 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; |
606 | } | |
607 | ||
8ca151b5 JB |
608 | hw->wiphy->hw_version = mvm->trans->hw_id; |
609 | ||
ade50652 | 610 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
611 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
612 | else | |
613 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
614 | ||
ca986ad9 | 615 | hw->wiphy->max_sched_scan_reqs = 1; |
9954b37c EG |
616 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; |
617 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
618 | /* we create the 802.11 header and zero length SSID IE. */ | |
619 | hw->wiphy->max_sched_scan_ie_len = | |
620 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
cd55ccea AS |
621 | hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS; |
622 | hw->wiphy->max_sched_scan_plan_interval = U16_MAX; | |
623 | ||
624 | /* | |
625 | * the firmware uses u8 for num of iterations, but 0xff is saved for | |
626 | * infinite loop, so the maximum number of iterations is actually 254. | |
627 | */ | |
628 | hw->wiphy->max_sched_scan_plan_iterations = 254; | |
35a000b7 | 629 | |
8ca151b5 | 630 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 631 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 | 632 | NL80211_FEATURE_P2P_GO_OPPPS | |
a904a08b | 633 | NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE | |
0d8614b4 | 634 | NL80211_FEATURE_DYNAMIC_SMPS | |
9b5452fd EG |
635 | NL80211_FEATURE_STATIC_SMPS | |
636 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 637 | |
859d914c JB |
638 | if (fw_has_capa(&mvm->fw->ucode_capa, |
639 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)) | |
f1daa00e | 640 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; |
859d914c JB |
641 | if (fw_has_capa(&mvm->fw->ucode_capa, |
642 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)) | |
226bcd48 | 643 | hw->wiphy->features |= NL80211_FEATURE_QUIET; |
f1daa00e | 644 | |
859d914c JB |
645 | if (fw_has_capa(&mvm->fw->ucode_capa, |
646 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)) | |
73897bd1 AO |
647 | hw->wiphy->features |= |
648 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
649 | ||
859d914c JB |
650 | if (fw_has_capa(&mvm->fw->ucode_capa, |
651 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)) | |
73897bd1 AO |
652 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; |
653 | ||
aacf8f18 AS |
654 | if (fw_has_api(&mvm->fw->ucode_capa, |
655 | IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) { | |
656 | wiphy_ext_feature_set(hw->wiphy, | |
657 | NL80211_EXT_FEATURE_SCAN_START_TIME); | |
658 | wiphy_ext_feature_set(hw->wiphy, | |
659 | NL80211_EXT_FEATURE_BSS_PARENT_TSF); | |
660 | wiphy_ext_feature_set(hw->wiphy, | |
661 | NL80211_EXT_FEATURE_SET_SCAN_DWELL); | |
662 | } | |
663 | ||
8ca151b5 JB |
664 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
665 | ||
666 | #ifdef CONFIG_PM_SLEEP | |
d15a747f EP |
667 | if (iwl_mvm_is_d0i3_supported(mvm) && |
668 | device_can_wakeup(mvm->trans->dev)) { | |
669 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
670 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
671 | } |
672 | ||
eef187a7 | 673 | if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec && |
8ca151b5 JB |
674 | mvm->trans->ops->d3_suspend && |
675 | mvm->trans->ops->d3_resume && | |
676 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
677 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
678 | WIPHY_WOWLAN_DISCONNECT | | |
679 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
680 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
681 | WIPHY_WOWLAN_NET_DETECT; | |
3b37f4c9 | 682 | if (!iwlwifi_mod_params.swcrypto) |
964dc9e2 JB |
683 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
684 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
685 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
686 | ||
687 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
688 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
689 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 690 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 | 691 | hw->wiphy->wowlan = &mvm->wowlan; |
8ca151b5 JB |
692 | } |
693 | #endif | |
694 | ||
77736923 EP |
695 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
696 | /* assign default bcast filtering configuration */ | |
697 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
698 | #endif | |
699 | ||
8ca151b5 JB |
700 | ret = iwl_mvm_leds_init(mvm); |
701 | if (ret) | |
702 | return ret; | |
703 | ||
859d914c JB |
704 | if (fw_has_capa(&mvm->fw->ucode_capa, |
705 | IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) { | |
d8f1c515 AN |
706 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); |
707 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
7c4f0843 | 708 | ieee80211_hw_set(hw, TDLS_WIDER_BW); |
d8f1c515 AN |
709 | } |
710 | ||
859d914c JB |
711 | if (fw_has_capa(&mvm->fw->ucode_capa, |
712 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) { | |
1d3c3f63 AN |
713 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); |
714 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
715 | } | |
716 | ||
93190fb0 | 717 | hw->netdev_features |= mvm->cfg->features; |
5e6a98dc SS |
718 | if (!iwl_mvm_is_csum_supported(mvm)) { |
719 | hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS | | |
720 | NETIF_F_RXCSUM); | |
721 | /* We may support SW TX CSUM */ | |
722 | if (IWL_MVM_SW_TX_CSUM_OFFLOAD) | |
723 | hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS; | |
724 | } | |
41837ca9 | 725 | |
b7327d89 EG |
726 | ret = ieee80211_register_hw(mvm->hw); |
727 | if (ret) | |
728 | iwl_mvm_leds_exit(mvm); | |
de8ba41b | 729 | mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE; |
b7327d89 | 730 | |
91b08c2d AE |
731 | if (mvm->cfg->vht_mu_mimo_supported) |
732 | wiphy_ext_feature_set(hw->wiphy, | |
733 | NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER); | |
734 | ||
b7327d89 | 735 | return ret; |
8ca151b5 JB |
736 | } |
737 | ||
b2492501 AN |
738 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
739 | struct ieee80211_sta *sta, | |
740 | struct sk_buff *skb) | |
741 | { | |
742 | struct iwl_mvm_sta *mvmsta; | |
743 | bool defer = false; | |
744 | ||
745 | /* | |
746 | * double check the IN_D0I3 flag both before and after | |
747 | * taking the spinlock, in order to prevent taking | |
748 | * the spinlock when not needed. | |
749 | */ | |
750 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
751 | return false; | |
752 | ||
753 | spin_lock(&mvm->d0i3_tx_lock); | |
754 | /* | |
755 | * testing the flag again ensures the skb dequeue | |
756 | * loop (on d0i3 exit) hasn't run yet. | |
757 | */ | |
758 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
759 | goto out; | |
760 | ||
761 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
0ae98812 | 762 | if (mvmsta->sta_id == IWL_MVM_INVALID_STA || |
b2492501 AN |
763 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) |
764 | goto out; | |
765 | ||
766 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
767 | ieee80211_stop_queues(mvm->hw); | |
768 | ||
769 | /* trigger wakeup */ | |
770 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
771 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
772 | ||
773 | defer = true; | |
774 | out: | |
775 | spin_unlock(&mvm->d0i3_tx_lock); | |
776 | return defer; | |
777 | } | |
778 | ||
8ca151b5 JB |
779 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
780 | struct ieee80211_tx_control *control, | |
781 | struct sk_buff *skb) | |
782 | { | |
783 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
784 | struct ieee80211_sta *sta = control->sta; |
785 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
786 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 787 | |
9ee718aa EL |
788 | if (iwl_mvm_is_radio_killed(mvm)) { |
789 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
790 | goto drop; |
791 | } | |
792 | ||
d20e30af | 793 | if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
794 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
795 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
796 | goto drop; |
797 | ||
eb045e6e DS |
798 | /* treat non-bufferable MMPDUs on AP interfaces as broadcast */ |
799 | if ((info->control.vif->type == NL80211_IFTYPE_AP || | |
800 | info->control.vif->type == NL80211_IFTYPE_ADHOC) && | |
801 | ieee80211_is_mgmt(hdr->frame_control) && | |
802 | !ieee80211_is_bufferable_mmpdu(hdr->frame_control)) | |
3e56eadf JB |
803 | sta = NULL; |
804 | ||
805 | if (sta) { | |
b2492501 AN |
806 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
807 | return; | |
3e56eadf | 808 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
809 | goto drop; |
810 | return; | |
811 | } | |
812 | ||
813 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
814 | goto drop; | |
815 | return; | |
816 | drop: | |
817 | ieee80211_free_txskb(hw, skb); | |
818 | } | |
819 | ||
205e2210 EG |
820 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
821 | { | |
822 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
823 | return false; | |
824 | return true; | |
825 | } | |
826 | ||
827 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
828 | { | |
829 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
830 | return false; | |
831 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
832 | return true; | |
833 | ||
834 | /* enabled by default */ | |
835 | return true; | |
836 | } | |
837 | ||
7174beb6 JB |
838 | #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ |
839 | do { \ | |
840 | if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ | |
841 | break; \ | |
842 | iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \ | |
4203263d EG |
843 | } while (0) |
844 | ||
845 | static void | |
846 | iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
847 | struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, | |
848 | enum ieee80211_ampdu_mlme_action action) | |
849 | { | |
850 | struct iwl_fw_dbg_trigger_tlv *trig; | |
851 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
852 | ||
853 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
854 | return; | |
855 | ||
856 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
857 | ba_trig = (void *)trig->data; | |
858 | ||
7174beb6 JB |
859 | if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, |
860 | ieee80211_vif_to_wdev(vif), trig)) | |
4203263d EG |
861 | return; |
862 | ||
863 | switch (action) { | |
864 | case IEEE80211_AMPDU_TX_OPERATIONAL: { | |
865 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
866 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
867 | ||
868 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, | |
869 | "TX AGG START: MAC %pM tid %d ssn %d\n", | |
870 | sta->addr, tid, tid_data->ssn); | |
871 | break; | |
872 | } | |
873 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
874 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, | |
875 | "TX AGG STOP: MAC %pM tid %d\n", | |
876 | sta->addr, tid); | |
877 | break; | |
878 | case IEEE80211_AMPDU_RX_START: | |
879 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, | |
880 | "RX AGG START: MAC %pM tid %d ssn %d\n", | |
881 | sta->addr, tid, rx_ba_ssn); | |
882 | break; | |
883 | case IEEE80211_AMPDU_RX_STOP: | |
884 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, | |
885 | "RX AGG STOP: MAC %pM tid %d\n", | |
886 | sta->addr, tid); | |
887 | break; | |
888 | default: | |
889 | break; | |
890 | } | |
891 | } | |
892 | ||
8ca151b5 JB |
893 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
894 | struct ieee80211_vif *vif, | |
50ea05ef | 895 | struct ieee80211_ampdu_params *params) |
8ca151b5 JB |
896 | { |
897 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
898 | int ret; | |
b2492501 | 899 | bool tx_agg_ref = false; |
50ea05ef SS |
900 | struct ieee80211_sta *sta = params->sta; |
901 | enum ieee80211_ampdu_mlme_action action = params->action; | |
902 | u16 tid = params->tid; | |
903 | u16 *ssn = ¶ms->ssn; | |
904 | u8 buf_size = params->buf_size; | |
bb81bb68 | 905 | bool amsdu = params->amsdu; |
10b2b201 | 906 | u16 timeout = params->timeout; |
8ca151b5 JB |
907 | |
908 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
909 | sta->addr, tid, action); | |
910 | ||
911 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
912 | return -EACCES; | |
913 | ||
b2492501 | 914 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
915 | switch (action) { |
916 | case IEEE80211_AMPDU_TX_START: | |
917 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
918 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
919 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
920 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 921 | /* |
9256c205 EP |
922 | * for tx start, wait synchronously until D0i3 exit to |
923 | * get the correct sequence number for the tid. | |
924 | * additionally, some other ampdu actions use direct | |
925 | * target access, which is not handled automatically | |
926 | * by the trans layer (unlike commands), so wait for | |
927 | * d0i3 exit in these cases as well. | |
b2492501 | 928 | */ |
d40fc489 GG |
929 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
930 | if (ret) | |
931 | return ret; | |
932 | ||
933 | tx_agg_ref = true; | |
9256c205 EP |
934 | break; |
935 | default: | |
936 | break; | |
b2492501 AN |
937 | } |
938 | ||
8ca151b5 JB |
939 | mutex_lock(&mvm->mutex); |
940 | ||
941 | switch (action) { | |
942 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 943 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
944 | ret = -EINVAL; |
945 | break; | |
946 | } | |
10b2b201 SS |
947 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size, |
948 | timeout); | |
8ca151b5 JB |
949 | break; |
950 | case IEEE80211_AMPDU_RX_STOP: | |
10b2b201 SS |
951 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size, |
952 | timeout); | |
8ca151b5 JB |
953 | break; |
954 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 955 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
956 | ret = -EINVAL; |
957 | break; | |
958 | } | |
8ca151b5 JB |
959 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
960 | break; | |
961 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
962 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
963 | break; | |
8ca151b5 JB |
964 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
965 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 966 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
967 | break; |
968 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
bb81bb68 EG |
969 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, |
970 | buf_size, amsdu); | |
8ca151b5 JB |
971 | break; |
972 | default: | |
973 | WARN_ON_ONCE(1); | |
974 | ret = -EINVAL; | |
975 | break; | |
976 | } | |
4203263d EG |
977 | |
978 | if (!ret) { | |
979 | u16 rx_ba_ssn = 0; | |
980 | ||
981 | if (action == IEEE80211_AMPDU_RX_START) | |
982 | rx_ba_ssn = *ssn; | |
983 | ||
984 | iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, | |
985 | rx_ba_ssn, action); | |
986 | } | |
8ca151b5 JB |
987 | mutex_unlock(&mvm->mutex); |
988 | ||
b2492501 AN |
989 | /* |
990 | * If the tid is marked as started, we won't use it for offloaded | |
991 | * traffic on the next D0i3 entry. It's safe to unref. | |
992 | */ | |
993 | if (tx_agg_ref) | |
994 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
995 | ||
8ca151b5 JB |
996 | return ret; |
997 | } | |
998 | ||
999 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
1000 | struct ieee80211_vif *vif) | |
1001 | { | |
1002 | struct iwl_mvm *mvm = data; | |
1003 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1004 | ||
1005 | mvmvif->uploaded = false; | |
0ae98812 | 1006 | mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; |
8ca151b5 | 1007 | |
8ca151b5 JB |
1008 | spin_lock_bh(&mvm->time_event_lock); |
1009 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
1010 | spin_unlock_bh(&mvm->time_event_lock); | |
1011 | ||
fe0f2de3 | 1012 | mvmvif->phy_ctxt = NULL; |
8a275bad | 1013 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
1014 | } |
1015 | ||
1016 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) | |
1017 | { | |
58629d9d JB |
1018 | /* clear the D3 reconfig, we only need it to avoid dumping a |
1019 | * firmware coredump on reconfiguration, we shouldn't do that | |
1020 | * on D3->D0 transition | |
1021 | */ | |
b6eaa45a | 1022 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
7174beb6 JB |
1023 | mvm->fwrt.dump.desc = &iwl_dump_desc_assert; |
1024 | iwl_fw_error_dump(&mvm->fwrt); | |
b6eaa45a | 1025 | } |
1bd3cbc1 | 1026 | |
744cb695 EP |
1027 | /* cleanup all stale references (scan, roc), but keep the |
1028 | * ucode_down ref until reconfig is complete | |
1029 | */ | |
1030 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1031 | ||
fcb6b92a | 1032 | iwl_mvm_stop_device(mvm); |
8ca151b5 | 1033 | |
9af91f46 | 1034 | mvm->scan_status = 0; |
b1873300 | 1035 | mvm->ps_disabled = false; |
31b8b343 | 1036 | mvm->calibrating = false; |
8ca151b5 JB |
1037 | |
1038 | /* just in case one was running */ | |
305d236e | 1039 | iwl_mvm_cleanup_roc_te(mvm); |
8ca151b5 JB |
1040 | ieee80211_remain_on_channel_expired(mvm->hw); |
1041 | ||
737719fe AN |
1042 | /* |
1043 | * cleanup all interfaces, even inactive ones, as some might have | |
1044 | * gone down during the HW restart | |
1045 | */ | |
1046 | ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); | |
8ca151b5 | 1047 | |
fe0f2de3 | 1048 | mvm->p2p_device_vif = NULL; |
0ae98812 | 1049 | mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA; |
fe0f2de3 IP |
1050 | |
1051 | iwl_mvm_reset_phy_ctxts(mvm); | |
9c3deeb5 | 1052 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
24afba76 | 1053 | memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames)); |
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; |
7174beb6 | 1064 | mvm->fwrt.dump.conf = FW_DBG_INVALID; |
baf41bc3 | 1065 | mvm->monitor_on = false; |
91a8bcde JB |
1066 | |
1067 | /* keep statistics ticking */ | |
1068 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1069 | } |
1070 | ||
a0a09243 | 1071 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1072 | { |
8ca151b5 JB |
1073 | int ret; |
1074 | ||
a0a09243 | 1075 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 1076 | |
bf8b286f JB |
1077 | if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) { |
1078 | /* | |
1079 | * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART | |
1080 | * so later code will - from now on - see that we're doing it. | |
1081 | */ | |
1082 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1083 | clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); | |
a42b2af3 | 1084 | /* Clean up some internal and mac80211 state on restart */ |
8ca151b5 | 1085 | iwl_mvm_restart_cleanup(mvm); |
a42b2af3 LC |
1086 | } else { |
1087 | /* Hold the reference to prevent runtime suspend while | |
1088 | * the start procedure runs. It's a bit confusing | |
1089 | * that the UCODE_DOWN reference is taken, but it just | |
1090 | * means "UCODE is not UP yet". ( TODO: rename this | |
1091 | * reference). | |
1092 | */ | |
1093 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1094 | } | |
8ca151b5 | 1095 | ret = iwl_mvm_up(mvm); |
c47af22a JB |
1096 | |
1097 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1098 | /* Something went wrong - we need to finish some cleanup | |
1099 | * that normally iwl_mvm_mac_restart_complete() below | |
1100 | * would do. | |
1101 | */ | |
1102 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1103 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1104 | } | |
1105 | ||
a0a09243 LC |
1106 | return ret; |
1107 | } | |
1108 | ||
1109 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1110 | { | |
1111 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1112 | int ret; | |
1113 | ||
37948fcf EP |
1114 | /* Some hw restart cleanups must not hold the mutex */ |
1115 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1116 | /* | |
1117 | * Make sure we are out of d0i3. This is needed | |
1118 | * to make sure the reference accounting is correct | |
1119 | * (and there is no stale d0i3_exit_work). | |
1120 | */ | |
1121 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1122 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1123 | &mvm->status), | |
1124 | HZ); | |
1125 | } | |
1126 | ||
a0a09243 LC |
1127 | mutex_lock(&mvm->mutex); |
1128 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1129 | mutex_unlock(&mvm->mutex); |
1130 | ||
1131 | return ret; | |
1132 | } | |
1133 | ||
cf2c92d8 | 1134 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1135 | { |
8ca151b5 JB |
1136 | int ret; |
1137 | ||
1138 | mutex_lock(&mvm->mutex); | |
1139 | ||
1140 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1141 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
e7afe89f | 1142 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1143 | if (ret) |
1144 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1145 | ret); | |
1146 | ||
7498cf4c EP |
1147 | /* allow transport/FW low power modes */ |
1148 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1149 | ||
cbd2ae2d AN |
1150 | /* |
1151 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1152 | * of packets the FW sent out, so we must reconnect. | |
1153 | */ | |
1154 | iwl_mvm_teardown_tdls_peers(mvm); | |
1155 | ||
8ca151b5 JB |
1156 | mutex_unlock(&mvm->mutex); |
1157 | } | |
1158 | ||
088070a2 EP |
1159 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1160 | { | |
b7282643 LC |
1161 | if (iwl_mvm_is_d0i3_supported(mvm) && |
1162 | iwl_mvm_enter_d0i3_on_suspend(mvm)) | |
1163 | WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1164 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1165 | &mvm->status), | |
1166 | HZ), | |
1167 | "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1168 | } |
1169 | ||
cf2c92d8 EP |
1170 | static void |
1171 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1172 | enum ieee80211_reconfig_type reconfig_type) | |
1173 | { | |
1174 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1175 | ||
1176 | switch (reconfig_type) { | |
1177 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1178 | iwl_mvm_restart_complete(mvm); | |
1179 | break; | |
1180 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1181 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1182 | break; |
1183 | } | |
1184 | } | |
1185 | ||
a0a09243 | 1186 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1187 | { |
a0a09243 | 1188 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1189 | |
91a8bcde JB |
1190 | /* firmware counters are obviously reset now, but we shouldn't |
1191 | * partially track so also clear the fw_reset_accu counters. | |
1192 | */ | |
1193 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1194 | ||
8ca151b5 JB |
1195 | /* async_handlers_wk is now blocked */ |
1196 | ||
1197 | /* | |
1198 | * The work item could be running or queued if the | |
1199 | * ROC time event stops just as we get here. | |
1200 | */ | |
c779273b | 1201 | flush_work(&mvm->roc_done_wk); |
8ca151b5 | 1202 | |
fcb6b92a | 1203 | iwl_mvm_stop_device(mvm); |
8ca151b5 JB |
1204 | |
1205 | iwl_mvm_async_handlers_purge(mvm); | |
1206 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1207 | ||
1208 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1209 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1210 | |
0a79a0c0 EP |
1211 | /* |
1212 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1213 | * won't be called in this case). | |
8b2b9fbf AN |
1214 | * But make sure to cleanup interfaces that have gone down before/during |
1215 | * HW restart was requested. | |
0a79a0c0 | 1216 | */ |
8b2b9fbf AN |
1217 | if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
1218 | ieee80211_iterate_interfaces(mvm->hw, 0, | |
1219 | iwl_mvm_cleanup_iterator, mvm); | |
0a79a0c0 | 1220 | |
963221be AB |
1221 | /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
1222 | * make sure there's nothing left there and warn if any is found. | |
1223 | */ | |
859d914c | 1224 | if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
963221be AB |
1225 | int i; |
1226 | ||
507e4cda | 1227 | for (i = 0; i < mvm->max_scans; i++) { |
6185af2a LC |
1228 | if (WARN_ONCE(mvm->scan_uid_status[i], |
1229 | "UMAC scan UID %d status was not cleaned\n", | |
1230 | i)) | |
1231 | mvm->scan_uid_status[i] = 0; | |
963221be AB |
1232 | } |
1233 | } | |
a0a09243 | 1234 | } |
bc44886d | 1235 | |
a0a09243 LC |
1236 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1237 | { | |
1238 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1239 | ||
1240 | flush_work(&mvm->d0i3_exit_work); | |
1241 | flush_work(&mvm->async_handlers_wk); | |
24afba76 | 1242 | flush_work(&mvm->add_stream_wk); |
771147b0 JB |
1243 | |
1244 | /* | |
1245 | * Lock and clear the firmware running bit here already, so that | |
1246 | * new commands coming in elsewhere, e.g. from debugfs, will not | |
1247 | * be able to proceed. This is important here because one of those | |
7174beb6 | 1248 | * debugfs files causes the firmware dump to be triggered, and if we |
771147b0 JB |
1249 | * don't stop debugfs accesses before canceling that it could be |
1250 | * retriggered after we flush it but before we've cleared the bit. | |
1251 | */ | |
1252 | clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status); | |
1253 | ||
7174beb6 | 1254 | iwl_fw_cancel_dump(&mvm->fwrt); |
d3a108a4 | 1255 | cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork); |
69e04642 | 1256 | cancel_delayed_work_sync(&mvm->scan_timeout_dwork); |
7174beb6 | 1257 | iwl_fw_free_dump_desc(&mvm->fwrt); |
a0a09243 LC |
1258 | |
1259 | mutex_lock(&mvm->mutex); | |
1260 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1261 | mutex_unlock(&mvm->mutex); |
1262 | ||
1263 | /* | |
1264 | * The worker might have been waiting for the mutex, let it run and | |
1265 | * discover that its list is now empty. | |
1266 | */ | |
1267 | cancel_work_sync(&mvm->async_handlers_wk); | |
1268 | } | |
1269 | ||
fe0f2de3 IP |
1270 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1271 | { | |
1272 | u16 i; | |
1273 | ||
1274 | lockdep_assert_held(&mvm->mutex); | |
1275 | ||
1276 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1277 | if (!mvm->phy_ctxts[i].ref) | |
1278 | return &mvm->phy_ctxts[i]; | |
1279 | ||
1280 | IWL_ERR(mvm, "No available PHY context\n"); | |
1281 | return NULL; | |
1282 | } | |
1283 | ||
d44c3fe6 AA |
1284 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1285 | s16 tx_power) | |
1286 | { | |
1287 | struct iwl_dev_tx_power_cmd cmd = { | |
4b87e5af LC |
1288 | .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC), |
1289 | .v3.mac_context_id = | |
d44c3fe6 | 1290 | cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), |
4b87e5af | 1291 | .v3.pwr_restriction = cpu_to_le16(8 * tx_power), |
d44c3fe6 | 1292 | }; |
da03f029 | 1293 | int len = sizeof(cmd); |
d44c3fe6 | 1294 | |
d44c3fe6 | 1295 | if (tx_power == IWL_DEFAULT_MAX_TX_POWER) |
4b87e5af | 1296 | cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); |
d44c3fe6 | 1297 | |
55bfa4b9 LC |
1298 | if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK)) |
1299 | len = sizeof(cmd.v3); | |
da03f029 JB |
1300 | |
1301 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd); | |
d44c3fe6 AA |
1302 | } |
1303 | ||
8ca151b5 JB |
1304 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1305 | struct ieee80211_vif *vif) | |
1306 | { | |
1307 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1308 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1309 | int ret; | |
1310 | ||
aa5e1832 EG |
1311 | mvmvif->mvm = mvm; |
1312 | ||
d40fc489 GG |
1313 | /* |
1314 | * make sure D0i3 exit is completed, otherwise a target access | |
1315 | * during tx queue configuration could be done when still in | |
1316 | * D0i3 state. | |
1317 | */ | |
1318 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1319 | if (ret) | |
1320 | return ret; | |
1321 | ||
8ca151b5 JB |
1322 | /* |
1323 | * Not much to do here. The stack will not allow interface | |
1324 | * types or combinations that we didn't advertise, so we | |
1325 | * don't really have to check the types. | |
1326 | */ | |
1327 | ||
1328 | mutex_lock(&mvm->mutex); | |
1329 | ||
33cef925 JB |
1330 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1331 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1332 | mvmvif->beacon_stats.accu_num_beacons += | |
1333 | mvmvif->beacon_stats.num_beacons; | |
1334 | ||
e89044d7 | 1335 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1336 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1337 | if (ret) | |
1338 | goto out_unlock; | |
1339 | ||
1c2abf72 | 1340 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1341 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1342 | mvm->vif_count++; | |
ea183d02 | 1343 | |
8ca151b5 JB |
1344 | /* |
1345 | * The AP binding flow can be done only after the beacon | |
1346 | * template is configured (which happens only in the mac80211 | |
1347 | * start_ap() flow), and adding the broadcast station can happen | |
1348 | * only after the binding. | |
1349 | * In addition, since modifying the MAC before adding a bcast | |
1350 | * station is not allowed by the FW, delay the adding of MAC context to | |
1351 | * the point where we can also add the bcast station. | |
1352 | * In short: there's not much we can do at this point, other than | |
1353 | * allocating resources :) | |
1354 | */ | |
5023d966 JB |
1355 | if (vif->type == NL80211_IFTYPE_AP || |
1356 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1357 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1358 | if (ret) { |
1359 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1360 | goto out_release; | |
1361 | } | |
1362 | ||
c8f54701 JB |
1363 | /* |
1364 | * Only queue for this station is the mcast queue, | |
1365 | * which shouldn't be in TFD mask anyway | |
1366 | */ | |
1367 | ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta, | |
1368 | 0, vif->type, | |
1369 | IWL_STA_MULTICAST); | |
1370 | if (ret) | |
1371 | goto out_release; | |
26d6c16b | 1372 | |
77740cb4 | 1373 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1374 | goto out_unlock; |
1375 | } | |
1376 | ||
93190fb0 AA |
1377 | mvmvif->features |= hw->netdev_features; |
1378 | ||
8ca151b5 JB |
1379 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1380 | if (ret) | |
1381 | goto out_release; | |
1382 | ||
999609f1 | 1383 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1384 | if (ret) |
fd66fc1c | 1385 | goto out_remove_mac; |
8ca151b5 | 1386 | |
7df15b1e | 1387 | /* beacon filtering */ |
a1022927 | 1388 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1389 | if (ret) |
1390 | goto out_remove_mac; | |
1391 | ||
7df15b1e | 1392 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1393 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1394 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1395 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1396 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1397 | } |
1398 | ||
8ca151b5 JB |
1399 | /* |
1400 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1401 | * so a dedicated PHY context is allocated to it and the corresponding | |
1402 | * MAC context is bound to it at this stage. | |
1403 | */ | |
1404 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1405 | |
fe0f2de3 IP |
1406 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1407 | if (!mvmvif->phy_ctxt) { | |
1408 | ret = -ENOSPC; | |
bd3351ba | 1409 | goto out_free_bf; |
fe0f2de3 | 1410 | } |
8ca151b5 | 1411 | |
53a9d61e | 1412 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1413 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1414 | if (ret) | |
53a9d61e | 1415 | goto out_unref_phy; |
8ca151b5 | 1416 | |
d197358b | 1417 | ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif); |
8ca151b5 JB |
1418 | if (ret) |
1419 | goto out_unbind; | |
1420 | ||
1421 | /* Save a pointer to p2p device vif, so it can later be used to | |
1422 | * update the p2p device MAC when a GO is started/stopped */ | |
1423 | mvm->p2p_device_vif = vif; | |
1424 | } | |
1425 | ||
baf41bc3 ST |
1426 | if (vif->type == NL80211_IFTYPE_MONITOR) |
1427 | mvm->monitor_on = true; | |
1428 | ||
63494374 | 1429 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1430 | goto out_unlock; |
1431 | ||
1432 | out_unbind: | |
1433 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1434 | out_unref_phy: |
fe0f2de3 | 1435 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1436 | out_free_bf: |
1437 | if (mvm->bf_allowed_vif == mvmvif) { | |
1438 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1439 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1440 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1441 | } |
8ca151b5 JB |
1442 | out_remove_mac: |
1443 | mvmvif->phy_ctxt = NULL; | |
1444 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1445 | out_release: | |
5ee2b215 AB |
1446 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1447 | mvm->vif_count--; | |
8ca151b5 JB |
1448 | out_unlock: |
1449 | mutex_unlock(&mvm->mutex); | |
1450 | ||
d40fc489 GG |
1451 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1452 | ||
8ca151b5 JB |
1453 | return ret; |
1454 | } | |
1455 | ||
38a12b5b JB |
1456 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1457 | struct ieee80211_vif *vif) | |
8ca151b5 | 1458 | { |
8ca151b5 JB |
1459 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { |
1460 | /* | |
1461 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1462 | * We assume here that all the packets sent to the OFFCHANNEL | |
1463 | * queue are sent in ROC session. | |
1464 | */ | |
1465 | flush_work(&mvm->roc_done_wk); | |
8ca151b5 | 1466 | } |
38a12b5b JB |
1467 | } |
1468 | ||
1469 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1470 | struct ieee80211_vif *vif) | |
1471 | { | |
1472 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1473 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1474 | ||
1475 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1476 | |
1477 | mutex_lock(&mvm->mutex); | |
1478 | ||
7df15b1e HG |
1479 | if (mvm->bf_allowed_vif == mvmvif) { |
1480 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1481 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1482 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1483 | } |
1484 | ||
63494374 JB |
1485 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1486 | ||
8ca151b5 JB |
1487 | /* |
1488 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1489 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1490 | */ |
5023d966 JB |
1491 | if (vif->type == NL80211_IFTYPE_AP || |
1492 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1493 | #ifdef CONFIG_NL80211_TESTMODE |
1494 | if (vif == mvm->noa_vif) { | |
1495 | mvm->noa_vif = NULL; | |
1496 | mvm->noa_duration = 0; | |
1497 | } | |
1498 | #endif | |
26d6c16b | 1499 | iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta); |
013290aa | 1500 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1501 | goto out_release; |
1502 | } | |
1503 | ||
1504 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1505 | mvm->p2p_device_vif = NULL; | |
d197358b | 1506 | iwl_mvm_rm_p2p_bcast_sta(mvm, vif); |
8ca151b5 | 1507 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1508 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1509 | mvmvif->phy_ctxt = NULL; |
1510 | } | |
1511 | ||
5ee2b215 | 1512 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1513 | mvm->vif_count--; |
1c2abf72 | 1514 | |
999609f1 | 1515 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1516 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1517 | ||
baf41bc3 ST |
1518 | if (vif->type == NL80211_IFTYPE_MONITOR) |
1519 | mvm->monitor_on = false; | |
1520 | ||
8ca151b5 | 1521 | out_release: |
8ca151b5 JB |
1522 | mutex_unlock(&mvm->mutex); |
1523 | } | |
1524 | ||
1525 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1526 | { |
8ca151b5 JB |
1527 | return 0; |
1528 | } | |
1529 | ||
e59647ea EP |
1530 | struct iwl_mvm_mc_iter_data { |
1531 | struct iwl_mvm *mvm; | |
1532 | int port_id; | |
1533 | }; | |
1534 | ||
1535 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1536 | struct ieee80211_vif *vif) | |
1537 | { | |
1538 | struct iwl_mvm_mc_iter_data *data = _data; | |
1539 | struct iwl_mvm *mvm = data->mvm; | |
1540 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
97bce57b LC |
1541 | struct iwl_host_cmd hcmd = { |
1542 | .id = MCAST_FILTER_CMD, | |
1543 | .flags = CMD_ASYNC, | |
1544 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
1545 | }; | |
e59647ea EP |
1546 | int ret, len; |
1547 | ||
1548 | /* if we don't have free ports, mcast frames will be dropped */ | |
1549 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1550 | return; | |
1551 | ||
1552 | if (vif->type != NL80211_IFTYPE_STATION || | |
1553 | !vif->bss_conf.assoc) | |
1554 | return; | |
1555 | ||
1556 | cmd->port_id = data->port_id++; | |
1557 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1558 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1559 | ||
97bce57b LC |
1560 | hcmd.len[0] = len; |
1561 | hcmd.data[0] = cmd; | |
1562 | ||
1563 | ret = iwl_mvm_send_cmd(mvm, &hcmd); | |
e59647ea EP |
1564 | if (ret) |
1565 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1566 | } | |
1567 | ||
1568 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1569 | { | |
1570 | struct iwl_mvm_mc_iter_data iter_data = { | |
1571 | .mvm = mvm, | |
88f2fd73 MG |
1572 | }; |
1573 | ||
e59647ea EP |
1574 | lockdep_assert_held(&mvm->mutex); |
1575 | ||
1576 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1577 | return; | |
1578 | ||
1c4abec0 | 1579 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1580 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1581 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1582 | } |
1583 | ||
e59647ea EP |
1584 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1585 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1586 | { |
e59647ea EP |
1587 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1588 | struct iwl_mcast_filter_cmd *cmd; | |
1589 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1590 | int addr_count; |
1591 | bool pass_all; | |
e59647ea EP |
1592 | int len; |
1593 | ||
f3bd58f4 MS |
1594 | addr_count = netdev_hw_addr_list_count(mc_list); |
1595 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1596 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1597 | if (pass_all) | |
e59647ea | 1598 | addr_count = 0; |
e59647ea EP |
1599 | |
1600 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1601 | cmd = kzalloc(len, GFP_ATOMIC); | |
1602 | if (!cmd) | |
1603 | return 0; | |
1604 | ||
1605 | if (pass_all) { | |
1606 | cmd->pass_all = 1; | |
1607 | return (u64)(unsigned long)cmd; | |
1608 | } | |
1609 | ||
1610 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1611 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1612 | cmd->count, addr->addr); | |
1613 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1614 | addr->addr, ETH_ALEN); | |
1615 | cmd->count++; | |
1616 | } | |
1617 | ||
1618 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1619 | } |
1620 | ||
1621 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1622 | unsigned int changed_flags, | |
1623 | unsigned int *total_flags, | |
1624 | u64 multicast) | |
1625 | { | |
e59647ea EP |
1626 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1627 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1628 | |
e59647ea | 1629 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1630 | |
e59647ea EP |
1631 | /* replace previous configuration */ |
1632 | kfree(mvm->mcast_filter_cmd); | |
1633 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1634 | |
e59647ea EP |
1635 | if (!cmd) |
1636 | goto out; | |
51b6b9e0 | 1637 | |
61e7d91b LC |
1638 | if (changed_flags & FIF_ALLMULTI) |
1639 | cmd->pass_all = !!(*total_flags & FIF_ALLMULTI); | |
1640 | ||
1641 | if (cmd->pass_all) | |
1642 | cmd->count = 0; | |
1643 | ||
e59647ea EP |
1644 | iwl_mvm_recalc_multicast(mvm); |
1645 | out: | |
1646 | mutex_unlock(&mvm->mutex); | |
1647 | *total_flags = 0; | |
51b6b9e0 EG |
1648 | } |
1649 | ||
effd1929 AO |
1650 | static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw, |
1651 | struct ieee80211_vif *vif, | |
1652 | unsigned int filter_flags, | |
1653 | unsigned int changed_flags) | |
1654 | { | |
1655 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1656 | ||
1657 | /* We support only filter for probe requests */ | |
1658 | if (!(changed_flags & FIF_PROBE_REQ)) | |
1659 | return; | |
1660 | ||
1661 | /* Supported only for p2p client interfaces */ | |
1662 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc || | |
1663 | !vif->p2p) | |
1664 | return; | |
1665 | ||
1666 | mutex_lock(&mvm->mutex); | |
1667 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1668 | mutex_unlock(&mvm->mutex); | |
1669 | } | |
1670 | ||
c87163b9 EP |
1671 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1672 | struct iwl_bcast_iter_data { | |
1673 | struct iwl_mvm *mvm; | |
1674 | struct iwl_bcast_filter_cmd *cmd; | |
1675 | u8 current_filter; | |
1676 | }; | |
1677 | ||
1678 | static void | |
1679 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1680 | const struct iwl_fw_bcast_filter *in_filter, | |
1681 | struct iwl_fw_bcast_filter *out_filter) | |
1682 | { | |
1683 | struct iwl_fw_bcast_filter_attr *attr; | |
1684 | int i; | |
1685 | ||
1686 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1687 | ||
1688 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1689 | attr = &out_filter->attrs[i]; | |
1690 | ||
1691 | if (!attr->mask) | |
1692 | break; | |
1693 | ||
2ee8f021 EP |
1694 | switch (attr->reserved1) { |
1695 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1696 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1697 | attr->mask = 0; | |
1698 | continue; | |
1699 | } | |
1700 | ||
1701 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1702 | break; | |
1703 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1704 | attr->val = *(__be32 *)&vif->addr[2]; | |
1705 | break; | |
1706 | default: | |
1707 | break; | |
1708 | } | |
1709 | attr->reserved1 = 0; | |
c87163b9 EP |
1710 | out_filter->num_attrs++; |
1711 | } | |
1712 | } | |
1713 | ||
1714 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1715 | struct ieee80211_vif *vif) | |
1716 | { | |
1717 | struct iwl_bcast_iter_data *data = _data; | |
1718 | struct iwl_mvm *mvm = data->mvm; | |
1719 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1720 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1721 | struct iwl_fw_bcast_mac *bcast_mac; | |
1722 | int i; | |
1723 | ||
1724 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1725 | return; | |
1726 | ||
1727 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1728 | ||
e48393e8 IP |
1729 | /* |
1730 | * enable filtering only for associated stations, but not for P2P | |
1731 | * Clients | |
1732 | */ | |
1733 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1734 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1735 | return; |
1736 | ||
1737 | bcast_mac->default_discard = 1; | |
1738 | ||
1739 | /* copy all configured filters */ | |
1740 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1741 | /* | |
1742 | * Make sure we don't exceed our filters limit. | |
1743 | * if there is still a valid filter to be configured, | |
1744 | * be on the safe side and just allow bcast for this mac. | |
1745 | */ | |
1746 | if (WARN_ON_ONCE(data->current_filter >= | |
1747 | ARRAY_SIZE(cmd->filters))) { | |
1748 | bcast_mac->default_discard = 0; | |
1749 | bcast_mac->attached_filters = 0; | |
1750 | break; | |
1751 | } | |
1752 | ||
1753 | iwl_mvm_set_bcast_filter(vif, | |
1754 | &mvm->bcast_filters[i], | |
1755 | &cmd->filters[data->current_filter]); | |
1756 | ||
1757 | /* skip current filter if it contains no attributes */ | |
1758 | if (!cmd->filters[data->current_filter].num_attrs) | |
1759 | continue; | |
1760 | ||
1761 | /* attach the filter to current mac */ | |
1762 | bcast_mac->attached_filters |= | |
1763 | cpu_to_le16(BIT(data->current_filter)); | |
1764 | ||
1765 | data->current_filter++; | |
1766 | } | |
1767 | } | |
1768 | ||
de06a59e EP |
1769 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1770 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1771 | { |
c87163b9 EP |
1772 | struct iwl_bcast_iter_data iter_data = { |
1773 | .mvm = mvm, | |
de06a59e | 1774 | .cmd = cmd, |
c87163b9 EP |
1775 | }; |
1776 | ||
3b8983b1 MS |
1777 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
1778 | return false; | |
1779 | ||
de06a59e EP |
1780 | memset(cmd, 0, sizeof(*cmd)); |
1781 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1782 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1783 | ||
1784 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1785 | /* use debugfs filters/macs if override is configured */ | |
1786 | if (mvm->dbgfs_bcast_filtering.override) { | |
1787 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1788 | sizeof(cmd->filters)); | |
1789 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1790 | sizeof(cmd->macs)); | |
1791 | return true; | |
1792 | } | |
1793 | #endif | |
c87163b9 EP |
1794 | |
1795 | /* if no filters are configured, do nothing */ | |
1796 | if (!mvm->bcast_filters) | |
de06a59e | 1797 | return false; |
c87163b9 EP |
1798 | |
1799 | /* configure and attach these filters for each associated sta vif */ | |
1800 | ieee80211_iterate_active_interfaces( | |
1801 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1802 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1803 | ||
de06a59e EP |
1804 | return true; |
1805 | } | |
34672bb3 EP |
1806 | |
1807 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) | |
de06a59e EP |
1808 | { |
1809 | struct iwl_bcast_filter_cmd cmd; | |
1810 | ||
1811 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1812 | return 0; | |
1813 | ||
1814 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1815 | return 0; | |
1816 | ||
a1022927 | 1817 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1818 | sizeof(cmd), &cmd); |
1819 | } | |
1820 | #else | |
34672bb3 | 1821 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm) |
c87163b9 EP |
1822 | { |
1823 | return 0; | |
1824 | } | |
1825 | #endif | |
1826 | ||
a07a8f37 SS |
1827 | static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm, |
1828 | struct ieee80211_vif *vif) | |
1829 | { | |
1830 | struct iwl_mu_group_mgmt_cmd cmd = {}; | |
1831 | ||
1832 | memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership, | |
1833 | WLAN_MEMBERSHIP_LEN); | |
1834 | memcpy(cmd.user_position, vif->bss_conf.mu_group.position, | |
1835 | WLAN_USER_POSITION_LEN); | |
1836 | ||
1837 | return iwl_mvm_send_cmd_pdu(mvm, | |
1838 | WIDE_ID(DATA_PATH_GROUP, | |
1839 | UPDATE_MU_GROUPS_CMD), | |
1840 | 0, sizeof(cmd), &cmd); | |
1841 | } | |
1842 | ||
f92659a1 SS |
1843 | static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac, |
1844 | struct ieee80211_vif *vif) | |
1845 | { | |
1846 | if (vif->mu_mimo_owner) { | |
1847 | struct iwl_mu_group_mgmt_notif *notif = _data; | |
1848 | ||
1849 | /* | |
1850 | * MU-MIMO Group Id action frame is little endian. We treat | |
1851 | * the data received from firmware as if it came from the | |
1852 | * action frame, so no conversion is needed. | |
1853 | */ | |
1854 | ieee80211_update_mu_groups(vif, | |
1855 | (u8 *)¬if->membership_status, | |
1856 | (u8 *)¬if->user_position); | |
1857 | } | |
1858 | } | |
1859 | ||
1860 | void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm, | |
1861 | struct iwl_rx_cmd_buffer *rxb) | |
1862 | { | |
1863 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1864 | struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data; | |
1865 | ||
1866 | ieee80211_iterate_active_interfaces_atomic( | |
1867 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1868 | iwl_mvm_mu_mimo_iface_iterator, notif); | |
1869 | } | |
1870 | ||
8ca151b5 JB |
1871 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1872 | struct ieee80211_vif *vif, | |
1873 | struct ieee80211_bss_conf *bss_conf, | |
1874 | u32 changes) | |
1875 | { | |
1876 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1877 | int ret; | |
1878 | ||
6e97b0d2 IP |
1879 | /* |
1880 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1881 | * beacon interval, which was not known when the station interface was | |
1882 | * added. | |
1883 | */ | |
1884 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1885 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1886 | ||
3dfd3a97 JB |
1887 | /* |
1888 | * If we're not associated yet, take the (new) BSSID before associating | |
1889 | * so the firmware knows. If we're already associated, then use the old | |
1890 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
1891 | * branch for disassociation below. | |
1892 | */ | |
1893 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
1894 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1895 | ||
1896 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
1897 | if (ret) |
1898 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1899 | ||
3dfd3a97 JB |
1900 | /* after sending it once, adopt mac80211 data */ |
1901 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1902 | mvmvif->associated = bss_conf->assoc; | |
1903 | ||
8ca151b5 JB |
1904 | if (changes & BSS_CHANGED_ASSOC) { |
1905 | if (bss_conf->assoc) { | |
33cef925 JB |
1906 | /* clear statistics to get clean beacon counter */ |
1907 | iwl_mvm_request_statistics(mvm, true); | |
1908 | memset(&mvmvif->beacon_stats, 0, | |
1909 | sizeof(mvmvif->beacon_stats)); | |
1910 | ||
8ca151b5 | 1911 | /* add quota for this interface */ |
7754ae79 | 1912 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1913 | if (ret) { |
1914 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1915 | return; | |
1916 | } | |
016d27e1 JB |
1917 | |
1918 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1919 | &mvm->status)) { | |
1920 | /* | |
1921 | * If we're restarting then the firmware will | |
1922 | * obviously have lost synchronisation with | |
1923 | * the AP. It will attempt to synchronise by | |
1924 | * itself, but we can make it more reliable by | |
1925 | * scheduling a session protection time event. | |
1926 | * | |
1927 | * The firmware needs to receive a beacon to | |
1928 | * catch up with synchronisation, use 110% of | |
1929 | * the beacon interval. | |
1930 | * | |
1931 | * Set a large maximum delay to allow for more | |
1932 | * than a single interface. | |
1933 | */ | |
1934 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
1935 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 1936 | 5 * dur, false); |
016d27e1 | 1937 | } |
1f3b0ff8 LE |
1938 | |
1939 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 1940 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 1941 | if (vif->p2p) { |
29a90a49 | 1942 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
1943 | iwl_mvm_update_smps(mvm, vif, |
1944 | IWL_MVM_SMPS_REQ_PROT, | |
1945 | IEEE80211_SMPS_DYNAMIC); | |
1946 | } | |
0ae98812 | 1947 | } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) { |
1f3b0ff8 LE |
1948 | /* |
1949 | * If update fails - SF might be running in associated | |
1950 | * mode while disassociated - which is forbidden. | |
1951 | */ | |
1952 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
1953 | "Failed to update SF upon disassociation\n"); | |
1954 | ||
6b28f978 EG |
1955 | /* |
1956 | * If we get an assert during the connection (after the | |
1957 | * station has been added, but before the vif is set | |
1958 | * to associated), mac80211 will re-add the station and | |
1959 | * then configure the vif. Since the vif is not | |
1960 | * associated, we would remove the station here and | |
1961 | * this would fail the recovery. | |
1962 | */ | |
1963 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1964 | &mvm->status)) { | |
1965 | /* | |
1966 | * Remove AP station now that | |
1967 | * the MAC is unassoc | |
1968 | */ | |
1969 | ret = iwl_mvm_rm_sta_id(mvm, vif, | |
1970 | mvmvif->ap_sta_id); | |
1971 | if (ret) | |
1972 | IWL_ERR(mvm, | |
1973 | "failed to remove AP station\n"); | |
1974 | ||
1975 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
1976 | mvm->d0i3_ap_sta_id = | |
1977 | IWL_MVM_INVALID_STA; | |
1978 | mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; | |
1979 | } | |
37577fe2 | 1980 | |
8ca151b5 | 1981 | /* remove quota for this interface */ |
7754ae79 | 1982 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
1983 | if (ret) |
1984 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
1985 | |
1986 | if (vif->p2p) | |
1987 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
1988 | |
1989 | /* this will take the cleared BSSID from bss_conf */ | |
1990 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
1991 | if (ret) | |
1992 | IWL_ERR(mvm, | |
1993 | "failed to update MAC %pM (clear after unassoc)\n", | |
1994 | vif->addr); | |
8ca151b5 | 1995 | } |
a20fd398 | 1996 | |
a07a8f37 SS |
1997 | /* |
1998 | * The firmware tracks the MU-MIMO group on its own. | |
f92659a1 | 1999 | * However, on HW restart we should restore this data. |
a07a8f37 SS |
2000 | */ |
2001 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
f92659a1 | 2002 | (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) { |
a07a8f37 SS |
2003 | ret = iwl_mvm_update_mu_groups(mvm, vif); |
2004 | if (ret) | |
2005 | IWL_ERR(mvm, | |
2006 | "failed to update VHT MU_MIMO groups\n"); | |
2007 | } | |
2008 | ||
e59647ea | 2009 | iwl_mvm_recalc_multicast(mvm); |
34672bb3 | 2010 | iwl_mvm_configure_bcast_filter(mvm); |
e59647ea | 2011 | |
a20fd398 AO |
2012 | /* reset rssi values */ |
2013 | mvmvif->bf_data.ave_beacon_signal = 0; | |
2014 | ||
8e484f0b | 2015 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
2016 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
2017 | IEEE80211_SMPS_AUTOMATIC); | |
355346ba AS |
2018 | if (fw_has_capa(&mvm->fw->ucode_capa, |
2019 | IWL_UCODE_TLV_CAPA_UMAC_SCAN)) | |
2020 | iwl_mvm_config_scan(mvm); | |
b45242c9 AS |
2021 | } |
2022 | ||
2023 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
210a544e | 2024 | /* |
b45242c9 | 2025 | * We received a beacon from the associated AP so |
210a544e JB |
2026 | * remove the session protection. |
2027 | */ | |
3edfb5f4 | 2028 | iwl_mvm_stop_session_protection(mvm, vif); |
cc87d322 | 2029 | |
cc87d322 EH |
2030 | iwl_mvm_sf_update(mvm, vif, false); |
2031 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
2032 | } | |
2033 | ||
283115fb AA |
2034 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS | |
2035 | /* | |
2036 | * Send power command on every beacon change, | |
2037 | * because we may have not enabled beacon abort yet. | |
2038 | */ | |
2039 | BSS_CHANGED_BEACON_INFO)) { | |
1bc10d3b JB |
2040 | ret = iwl_mvm_power_update_mac(mvm); |
2041 | if (ret) | |
2042 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2043 | } | |
2044 | ||
88f2fd73 MG |
2045 | if (changes & BSS_CHANGED_TXPOWER) { |
2046 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2047 | bss_conf->txpower); | |
2048 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2049 | } | |
a20fd398 AO |
2050 | |
2051 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2052 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2053 | /* reset cqm events tracking */ |
2054 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2055 | if (mvmvif->bf_data.bf_enabled) { |
2056 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2057 | if (ret) | |
2058 | IWL_ERR(mvm, | |
2059 | "failed to update CQM thresholds\n"); | |
2060 | } | |
a20fd398 | 2061 | } |
2ee8f021 EP |
2062 | |
2063 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2064 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
34672bb3 | 2065 | iwl_mvm_configure_bcast_filter(mvm); |
2ee8f021 | 2066 | } |
8ca151b5 JB |
2067 | } |
2068 | ||
5023d966 JB |
2069 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2070 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2071 | { |
2072 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2073 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2074 | int ret; | |
2075 | ||
576eeee9 EP |
2076 | /* |
2077 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2078 | * (the system time), so make sure it is available. | |
2079 | */ | |
2080 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2081 | if (ret) | |
2082 | return ret; | |
2083 | ||
8ca151b5 JB |
2084 | mutex_lock(&mvm->mutex); |
2085 | ||
2086 | /* Send the beacon template */ | |
2087 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2088 | if (ret) | |
2089 | goto out_unlock; | |
2090 | ||
6e97b0d2 IP |
2091 | /* |
2092 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2093 | * beacon interval, which was not known when the AP interface was added. | |
2094 | */ | |
2095 | if (vif->type == NL80211_IFTYPE_AP) | |
2096 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2097 | ||
94939080 GG |
2098 | mvmvif->ap_assoc_sta_count = 0; |
2099 | ||
8ca151b5 JB |
2100 | /* Add the mac context */ |
2101 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2102 | if (ret) | |
2103 | goto out_unlock; | |
2104 | ||
2105 | /* Perform the binding */ | |
2106 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2107 | if (ret) | |
2108 | goto out_remove; | |
2109 | ||
63dd5d02 SS |
2110 | /* |
2111 | * This is not very nice, but the simplest: | |
2112 | * For older FWs adding the mcast sta before the bcast station may | |
2113 | * cause assert 0x2b00. | |
2114 | * This is fixed in later FW so make the order of removal depend on | |
2115 | * the TLV | |
2116 | */ | |
2117 | if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) { | |
2118 | ret = iwl_mvm_add_mcast_sta(mvm, vif); | |
2119 | if (ret) | |
2120 | goto out_unbind; | |
2121 | /* | |
2122 | * Send the bcast station. At this stage the TBTT and DTIM time | |
2123 | * events are added and applied to the scheduler | |
2124 | */ | |
2125 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); | |
2126 | if (ret) { | |
2127 | iwl_mvm_rm_mcast_sta(mvm, vif); | |
2128 | goto out_unbind; | |
2129 | } | |
2130 | } else { | |
2131 | /* | |
2132 | * Send the bcast station. At this stage the TBTT and DTIM time | |
2133 | * events are added and applied to the scheduler | |
2134 | */ | |
2135 | iwl_mvm_send_add_bcast_sta(mvm, vif); | |
2136 | if (ret) | |
2137 | goto out_unbind; | |
2138 | iwl_mvm_add_mcast_sta(mvm, vif); | |
2139 | if (ret) { | |
2140 | iwl_mvm_send_rm_bcast_sta(mvm, vif); | |
2141 | goto out_unbind; | |
2142 | } | |
2143 | } | |
26d6c16b | 2144 | |
5691e218 IP |
2145 | /* must be set before quota calculations */ |
2146 | mvmvif->ap_ibss_active = true; | |
2147 | ||
a11e144e | 2148 | /* power updated needs to be done before quotas */ |
999609f1 | 2149 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2150 | |
7754ae79 | 2151 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 | 2152 | if (ret) |
a11e144e | 2153 | goto out_quota_failed; |
8ca151b5 | 2154 | |
5023d966 | 2155 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2156 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2157 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2158 | |
29a90a49 EP |
2159 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2160 | ||
8e484f0b | 2161 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2162 | |
f697267f AN |
2163 | /* we don't support TDLS during DCM */ |
2164 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2165 | iwl_mvm_teardown_tdls_peers(mvm); | |
2166 | ||
939e4904 | 2167 | goto out_unlock; |
8ca151b5 | 2168 | |
a11e144e | 2169 | out_quota_failed: |
999609f1 | 2170 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2171 | mvmvif->ap_ibss_active = false; |
013290aa | 2172 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
ced19f26 | 2173 | iwl_mvm_rm_mcast_sta(mvm, vif); |
8ca151b5 JB |
2174 | out_unbind: |
2175 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2176 | out_remove: | |
2177 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2178 | out_unlock: | |
2179 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2180 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2181 | return ret; |
2182 | } | |
2183 | ||
5023d966 JB |
2184 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2185 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2186 | { |
2187 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2188 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2189 | ||
38a12b5b JB |
2190 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2191 | ||
8ca151b5 JB |
2192 | mutex_lock(&mvm->mutex); |
2193 | ||
664322fa | 2194 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2195 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2196 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2197 | &mvmvif->time_event_data); | |
664322fa | 2198 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
e9cb0327 | 2199 | mvmvif->csa_countdown = false; |
7f0a7c67 | 2200 | } |
664322fa | 2201 | |
003e5236 AO |
2202 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2203 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2204 | mvm->csa_tx_block_bcn_timeout = 0; | |
2205 | } | |
2206 | ||
5023d966 | 2207 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2208 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2209 | |
8e484f0b | 2210 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2211 | |
29a90a49 EP |
2212 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2213 | ||
5023d966 | 2214 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2215 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2216 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2217 | |
7754ae79 | 2218 | iwl_mvm_update_quotas(mvm, false, NULL); |
ced19f26 SS |
2219 | |
2220 | /* | |
2221 | * This is not very nice, but the simplest: | |
2222 | * For older FWs removing the mcast sta before the bcast station may | |
2223 | * cause assert 0x2b00. | |
2224 | * This is fixed in later FW (which will stop beaconing when removing | |
2225 | * bcast station). | |
2226 | * So make the order of removal depend on the TLV | |
2227 | */ | |
2228 | if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) | |
2229 | iwl_mvm_rm_mcast_sta(mvm, vif); | |
013290aa | 2230 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
ced19f26 SS |
2231 | if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) |
2232 | iwl_mvm_rm_mcast_sta(mvm, vif); | |
8ca151b5 | 2233 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2234 | |
999609f1 | 2235 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2236 | |
8ca151b5 JB |
2237 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2238 | ||
2239 | mutex_unlock(&mvm->mutex); | |
2240 | } | |
2241 | ||
5023d966 JB |
2242 | static void |
2243 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2244 | struct ieee80211_vif *vif, | |
2245 | struct ieee80211_bss_conf *bss_conf, | |
2246 | u32 changes) | |
8ca151b5 | 2247 | { |
be2056fc | 2248 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2249 | |
be2056fc IP |
2250 | /* Changes will be applied when the AP/IBSS is started */ |
2251 | if (!mvmvif->ap_ibss_active) | |
2252 | return; | |
2253 | ||
863230da | 2254 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2255 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2256 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2257 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2258 | |
8ca151b5 | 2259 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2260 | if (changes & BSS_CHANGED_BEACON && |
2261 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2262 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2263 | |
2264 | if (changes & BSS_CHANGED_TXPOWER) { | |
2265 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2266 | bss_conf->txpower); | |
2267 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2268 | } | |
8ca151b5 JB |
2269 | } |
2270 | ||
2271 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2272 | struct ieee80211_vif *vif, | |
2273 | struct ieee80211_bss_conf *bss_conf, | |
2274 | u32 changes) | |
2275 | { | |
2276 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2277 | ||
576eeee9 EP |
2278 | /* |
2279 | * iwl_mvm_bss_info_changed_station() might call | |
2280 | * iwl_mvm_protect_session(), which reads directly from | |
2281 | * the device (the system time), so make sure it is available. | |
2282 | */ | |
2283 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2284 | return; | |
2285 | ||
8ca151b5 JB |
2286 | mutex_lock(&mvm->mutex); |
2287 | ||
723f02ed | 2288 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
c7d42480 | 2289 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
723f02ed | 2290 | |
8ca151b5 JB |
2291 | switch (vif->type) { |
2292 | case NL80211_IFTYPE_STATION: | |
2293 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2294 | break; | |
2295 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2296 | case NL80211_IFTYPE_ADHOC: |
2297 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 | 2298 | break; |
91b08c2d AE |
2299 | case NL80211_IFTYPE_MONITOR: |
2300 | if (changes & BSS_CHANGED_MU_GROUPS) | |
2301 | iwl_mvm_update_mu_groups(mvm, vif); | |
2302 | break; | |
8ca151b5 JB |
2303 | default: |
2304 | /* shouldn't happen */ | |
2305 | WARN_ON_ONCE(1); | |
2306 | } | |
2307 | ||
2308 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2309 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2310 | } |
2311 | ||
2312 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
2313 | struct ieee80211_vif *vif, | |
c56ef672 | 2314 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2315 | { |
2316 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2317 | int ret; | |
2318 | ||
6749dd80 LC |
2319 | if (hw_req->req.n_channels == 0 || |
2320 | hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2321 | return -EINVAL; |
2322 | ||
2323 | mutex_lock(&mvm->mutex); | |
6749dd80 | 2324 | ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); |
8ca151b5 | 2325 | mutex_unlock(&mvm->mutex); |
6749dd80 | 2326 | |
8ca151b5 JB |
2327 | return ret; |
2328 | } | |
2329 | ||
2330 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2331 | struct ieee80211_vif *vif) | |
2332 | { | |
2333 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2334 | ||
2335 | mutex_lock(&mvm->mutex); | |
2336 | ||
e7d3abab LC |
2337 | /* Due to a race condition, it's possible that mac80211 asks |
2338 | * us to stop a hw_scan when it's already stopped. This can | |
2339 | * happen, for instance, if we stopped the scan ourselves, | |
2340 | * called ieee80211_scan_completed() and the userspace called | |
2341 | * cancel scan scan before ieee80211_scan_work() could run. | |
2342 | * To handle that, simply return if the scan is not running. | |
2343 | */ | |
262888fc | 2344 | if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) |
c7d42480 | 2345 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
8ca151b5 JB |
2346 | |
2347 | mutex_unlock(&mvm->mutex); | |
2348 | } | |
2349 | ||
2350 | static void | |
2351 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2352 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2353 | int num_frames, |
2354 | enum ieee80211_frame_release_type reason, | |
2355 | bool more_data) | |
2356 | { | |
2357 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2358 | |
3e56eadf | 2359 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2360 | |
3e56eadf JB |
2361 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2362 | tids, more_data, false); | |
2363 | } | |
2364 | ||
2365 | static void | |
2366 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2367 | struct ieee80211_sta *sta, u16 tids, | |
2368 | int num_frames, | |
2369 | enum ieee80211_frame_release_type reason, | |
2370 | bool more_data) | |
2371 | { | |
2372 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2373 | ||
9a3fcf91 | 2374 | /* Called when we need to transmit (a) frame(s) from agg or dqa queue */ |
3e56eadf JB |
2375 | |
2376 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2377 | tids, more_data, true); | |
8ca151b5 JB |
2378 | } |
2379 | ||
65e25482 JB |
2380 | static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, |
2381 | enum sta_notify_cmd cmd, | |
2382 | struct ieee80211_sta *sta) | |
8ca151b5 JB |
2383 | { |
2384 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2385 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
c22b0ff5 | 2386 | unsigned long txqs = 0, tids = 0; |
3e56eadf | 2387 | int tid; |
8ca151b5 | 2388 | |
960f864b JB |
2389 | /* |
2390 | * If we have TVQM then we get too high queue numbers - luckily | |
2391 | * we really shouldn't get here with that because such hardware | |
2392 | * should have firmware supporting buffer station offload. | |
2393 | */ | |
2394 | if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) | |
2395 | return; | |
2396 | ||
c22b0ff5 EG |
2397 | spin_lock_bh(&mvmsta->lock); |
2398 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2399 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
2400 | ||
6862fcee | 2401 | if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE) |
1c17627b SS |
2402 | continue; |
2403 | ||
c22b0ff5 EG |
2404 | __set_bit(tid_data->txq_id, &txqs); |
2405 | ||
dd32162d | 2406 | if (iwl_mvm_tid_queued(mvm, tid_data) == 0) |
c22b0ff5 EG |
2407 | continue; |
2408 | ||
2409 | __set_bit(tid, &tids); | |
2410 | } | |
2411 | ||
8ca151b5 JB |
2412 | switch (cmd) { |
2413 | case STA_NOTIFY_SLEEP: | |
c22b0ff5 | 2414 | for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
3e56eadf | 2415 | ieee80211_sta_set_buffered(sta, tid, true); |
c22b0ff5 EG |
2416 | |
2417 | if (txqs) | |
2418 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); | |
8ca151b5 JB |
2419 | /* |
2420 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2421 | * queues to this station will not be transmitted. The fw will | |
2422 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2423 | */ | |
2424 | break; | |
2425 | case STA_NOTIFY_AWAKE: | |
0ae98812 | 2426 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA)) |
8ca151b5 | 2427 | break; |
c22b0ff5 EG |
2428 | |
2429 | if (txqs) | |
2430 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); | |
9cc40712 | 2431 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2432 | break; |
2433 | default: | |
2434 | break; | |
2435 | } | |
c22b0ff5 | 2436 | spin_unlock_bh(&mvmsta->lock); |
8ca151b5 JB |
2437 | } |
2438 | ||
65e25482 JB |
2439 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, |
2440 | struct ieee80211_vif *vif, | |
2441 | enum sta_notify_cmd cmd, | |
2442 | struct ieee80211_sta *sta) | |
2443 | { | |
2444 | __iwl_mvm_mac_sta_notify(hw, cmd, sta); | |
2445 | } | |
2446 | ||
2447 | void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) | |
2448 | { | |
2449 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
2450 | struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data; | |
2451 | struct ieee80211_sta *sta; | |
2452 | struct iwl_mvm_sta *mvmsta; | |
2453 | bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE); | |
2454 | ||
2455 | if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) | |
2456 | return; | |
2457 | ||
2458 | rcu_read_lock(); | |
a9560029 | 2459 | sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); |
65e25482 JB |
2460 | if (WARN_ON(IS_ERR_OR_NULL(sta))) { |
2461 | rcu_read_unlock(); | |
2462 | return; | |
2463 | } | |
2464 | ||
2465 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
2466 | ||
2467 | if (!mvmsta->vif || | |
2468 | mvmsta->vif->type != NL80211_IFTYPE_AP) { | |
2469 | rcu_read_unlock(); | |
2470 | return; | |
2471 | } | |
2472 | ||
2473 | if (mvmsta->sleeping != sleeping) { | |
2474 | mvmsta->sleeping = sleeping; | |
2475 | __iwl_mvm_mac_sta_notify(mvm->hw, | |
2476 | sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE, | |
2477 | sta); | |
2478 | ieee80211_sta_ps_transition(sta, sleeping); | |
2479 | } | |
2480 | ||
2481 | if (sleeping) { | |
2482 | switch (notif->type) { | |
2483 | case IWL_MVM_PM_EVENT_AWAKE: | |
2484 | case IWL_MVM_PM_EVENT_ASLEEP: | |
2485 | break; | |
2486 | case IWL_MVM_PM_EVENT_UAPSD: | |
2487 | ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS); | |
2488 | break; | |
2489 | case IWL_MVM_PM_EVENT_PS_POLL: | |
2490 | ieee80211_sta_pspoll(sta); | |
2491 | break; | |
2492 | default: | |
2493 | break; | |
2494 | } | |
2495 | } | |
2496 | ||
2497 | rcu_read_unlock(); | |
2498 | } | |
2499 | ||
1ddbbb0c JB |
2500 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2501 | struct ieee80211_vif *vif, | |
2502 | struct ieee80211_sta *sta) | |
2503 | { | |
2504 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2505 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2506 | |
2507 | /* | |
2508 | * This is called before mac80211 does RCU synchronisation, | |
2509 | * so here we already invalidate our internal RCU-protected | |
2510 | * station pointer. The rest of the code will thus no longer | |
2511 | * be able to find the station this way, and we don't rely | |
2512 | * on further RCU synchronisation after the sta_state() | |
2513 | * callback deleted the station. | |
2514 | */ | |
2515 | mutex_lock(&mvm->mutex); | |
2516 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2517 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2518 | ERR_PTR(-ENOENT)); | |
94939080 | 2519 | |
1ddbbb0c JB |
2520 | mutex_unlock(&mvm->mutex); |
2521 | } | |
2522 | ||
bd1ba664 JB |
2523 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2524 | const u8 *bssid) | |
2525 | { | |
2526 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2527 | return; | |
2528 | ||
c5241b0c | 2529 | if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) { |
cee5a882 AA |
2530 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2531 | return; | |
2532 | } | |
2533 | ||
11dee0b4 EG |
2534 | if (!vif->p2p && |
2535 | (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) { | |
bd1ba664 JB |
2536 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; |
2537 | return; | |
2538 | } | |
2539 | ||
2540 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2541 | } | |
2542 | ||
1e8f1329 GBA |
2543 | static void |
2544 | iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm, | |
2545 | struct ieee80211_vif *vif, u8 *peer_addr, | |
2546 | enum nl80211_tdls_operation action) | |
2547 | { | |
2548 | struct iwl_fw_dbg_trigger_tlv *trig; | |
2549 | struct iwl_fw_dbg_trigger_tdls *tdls_trig; | |
2550 | ||
2551 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS)) | |
2552 | return; | |
2553 | ||
2554 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS); | |
2555 | tdls_trig = (void *)trig->data; | |
7174beb6 JB |
2556 | if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, |
2557 | ieee80211_vif_to_wdev(vif), trig)) | |
1e8f1329 GBA |
2558 | return; |
2559 | ||
2560 | if (!(tdls_trig->action_bitmap & BIT(action))) | |
2561 | return; | |
2562 | ||
2563 | if (tdls_trig->peer_mode && | |
2564 | memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0) | |
2565 | return; | |
2566 | ||
7174beb6 JB |
2567 | iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, |
2568 | "TDLS event occurred, peer %pM, action %d", | |
2569 | peer_addr, action); | |
1e8f1329 GBA |
2570 | } |
2571 | ||
24afba76 LK |
2572 | static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm, |
2573 | struct iwl_mvm_sta *mvm_sta) | |
2574 | { | |
2575 | struct iwl_mvm_tid_data *tid_data; | |
2576 | struct sk_buff *skb; | |
2577 | int i; | |
2578 | ||
2579 | spin_lock_bh(&mvm_sta->lock); | |
2580 | for (i = 0; i <= IWL_MAX_TID_COUNT; i++) { | |
2581 | tid_data = &mvm_sta->tid_data[i]; | |
7e39a00d AS |
2582 | |
2583 | while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) { | |
2584 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
2585 | ||
2586 | /* | |
2587 | * The first deferred frame should've stopped the MAC | |
2588 | * queues, so we should never get a second deferred | |
2589 | * frame for the RA/TID. | |
2590 | */ | |
8458e48a | 2591 | iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue)); |
24afba76 | 2592 | ieee80211_free_txskb(mvm->hw, skb); |
7e39a00d | 2593 | } |
24afba76 LK |
2594 | } |
2595 | spin_unlock_bh(&mvm_sta->lock); | |
2596 | } | |
2597 | ||
8ca151b5 JB |
2598 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2599 | struct ieee80211_vif *vif, | |
2600 | struct ieee80211_sta *sta, | |
2601 | enum ieee80211_sta_state old_state, | |
2602 | enum ieee80211_sta_state new_state) | |
2603 | { | |
2604 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2605 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
6ea29ce5 | 2606 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
2607 | int ret; |
2608 | ||
2609 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2610 | sta->addr, old_state, new_state); | |
2611 | ||
2612 | /* this would be a mac80211 bug ... but don't crash */ | |
2613 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2614 | return -EINVAL; | |
2615 | ||
24afba76 LK |
2616 | /* |
2617 | * If we are in a STA removal flow and in DQA mode: | |
2618 | * | |
2619 | * This is after the sync_rcu part, so the queues have already been | |
2620 | * flushed. No more TXs on their way in mac80211's path, and no more in | |
2621 | * the queues. | |
2622 | * Also, we won't be getting any new TX frames for this station. | |
2623 | * What we might have are deferred TX frames that need to be taken care | |
2624 | * of. | |
2625 | * | |
2626 | * Drop any still-queued deferred-frame before removing the STA, and | |
2627 | * make sure the worker is no longer handling frames for this STA. | |
2628 | */ | |
2629 | if (old_state == IEEE80211_STA_NONE && | |
c8f54701 | 2630 | new_state == IEEE80211_STA_NOTEXIST) { |
24afba76 LK |
2631 | iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta); |
2632 | flush_work(&mvm->add_stream_wk); | |
2633 | ||
2634 | /* | |
2635 | * No need to make sure deferred TX indication is off since the | |
2636 | * worker will already remove it if it was on | |
2637 | */ | |
2638 | } | |
2639 | ||
8ca151b5 | 2640 | mutex_lock(&mvm->mutex); |
6ea29ce5 JB |
2641 | /* track whether or not the station is associated */ |
2642 | mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC; | |
2643 | ||
8ca151b5 JB |
2644 | if (old_state == IEEE80211_STA_NOTEXIST && |
2645 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2646 | /* |
2647 | * Firmware bug - it'll crash if the beacon interval is less | |
2648 | * than 16. We can't avoid connecting at all, so refuse the | |
2649 | * station state change, this will cause mac80211 to abandon | |
2650 | * attempts to connect to this AP, and eventually wpa_s will | |
2651 | * blacklist the AP... | |
2652 | */ | |
2653 | if (vif->type == NL80211_IFTYPE_STATION && | |
2654 | vif->bss_conf.beacon_int < 16) { | |
2655 | IWL_ERR(mvm, | |
2656 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2657 | sta->addr, vif->bss_conf.beacon_int); | |
2658 | ret = -EINVAL; | |
2659 | goto out_unlock; | |
2660 | } | |
cf7b491d AN |
2661 | |
2662 | if (sta->tdls && | |
2663 | (vif->p2p || | |
fa3d07e4 AN |
2664 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2665 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2666 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2667 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2668 | ret = -EBUSY; | |
2669 | goto out_unlock; | |
2670 | } | |
2671 | ||
8ca151b5 | 2672 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
1e8f1329 | 2673 | if (sta->tdls && ret == 0) { |
fa3d07e4 | 2674 | iwl_mvm_recalc_tdls_state(mvm, vif, true); |
1e8f1329 GBA |
2675 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2676 | NL80211_TDLS_SETUP); | |
2677 | } | |
8ca151b5 JB |
2678 | } else if (old_state == IEEE80211_STA_NONE && |
2679 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2680 | /* |
2681 | * EBS may be disabled due to previous failures reported by FW. | |
2682 | * Reset EBS status here assuming environment has been changed. | |
2683 | */ | |
2684 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2685 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2686 | ret = 0; |
2687 | } else if (old_state == IEEE80211_STA_AUTH && | |
2688 | new_state == IEEE80211_STA_ASSOC) { | |
8be30c13 AB |
2689 | if (vif->type == NL80211_IFTYPE_AP) { |
2690 | mvmvif->ap_assoc_sta_count++; | |
2691 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2692 | } | |
735a0045 GM |
2693 | |
2694 | iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, | |
2695 | true); | |
7a453973 | 2696 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
8ca151b5 JB |
2697 | } else if (old_state == IEEE80211_STA_ASSOC && |
2698 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2699 | |
2700 | /* we don't support TDLS during DCM */ | |
2701 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2702 | iwl_mvm_teardown_tdls_peers(mvm); | |
2703 | ||
1e8f1329 GBA |
2704 | if (sta->tdls) |
2705 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, | |
2706 | NL80211_TDLS_ENABLE_LINK); | |
2707 | ||
7df15b1e | 2708 | /* enable beacon filtering */ |
fa7b2e7f | 2709 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
6b7a5aea NG |
2710 | |
2711 | iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band, | |
2712 | false); | |
2713 | ||
8ca151b5 JB |
2714 | ret = 0; |
2715 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2716 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2717 | /* disable beacon filtering */ |
a1022927 | 2718 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2719 | ret = 0; |
2720 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2721 | new_state == IEEE80211_STA_AUTH) { | |
8be30c13 AB |
2722 | if (vif->type == NL80211_IFTYPE_AP) { |
2723 | mvmvif->ap_assoc_sta_count--; | |
2724 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2725 | } | |
8ca151b5 JB |
2726 | ret = 0; |
2727 | } else if (old_state == IEEE80211_STA_AUTH && | |
2728 | new_state == IEEE80211_STA_NONE) { | |
2729 | ret = 0; | |
2730 | } else if (old_state == IEEE80211_STA_NONE && | |
2731 | new_state == IEEE80211_STA_NOTEXIST) { | |
2732 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
1e8f1329 | 2733 | if (sta->tdls) { |
fa3d07e4 | 2734 | iwl_mvm_recalc_tdls_state(mvm, vif, false); |
1e8f1329 GBA |
2735 | iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr, |
2736 | NL80211_TDLS_DISABLE_LINK); | |
2737 | } | |
8ca151b5 JB |
2738 | } else { |
2739 | ret = -EIO; | |
2740 | } | |
48bc1307 | 2741 | out_unlock: |
8ca151b5 JB |
2742 | mutex_unlock(&mvm->mutex); |
2743 | ||
9c126cd6 LK |
2744 | if (sta->tdls && ret == 0) { |
2745 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2746 | new_state == IEEE80211_STA_NONE) | |
2747 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2748 | else if (old_state == IEEE80211_STA_NONE && | |
2749 | new_state == IEEE80211_STA_NOTEXIST) | |
2750 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2751 | } | |
2752 | ||
8ca151b5 JB |
2753 | return ret; |
2754 | } | |
2755 | ||
2756 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2757 | { | |
2758 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2759 | ||
2760 | mvm->rts_threshold = value; | |
2761 | ||
2762 | return 0; | |
2763 | } | |
2764 | ||
1f3b0ff8 LE |
2765 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2766 | struct ieee80211_vif *vif, | |
2767 | struct ieee80211_sta *sta, u32 changed) | |
2768 | { | |
2769 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2770 | ||
2771 | if (vif->type == NL80211_IFTYPE_STATION && | |
2772 | changed & IEEE80211_RC_NSS_CHANGED) | |
2773 | iwl_mvm_sf_update(mvm, vif, false); | |
2774 | } | |
2775 | ||
8ca151b5 JB |
2776 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2777 | struct ieee80211_vif *vif, u16 ac, | |
2778 | const struct ieee80211_tx_queue_params *params) | |
2779 | { | |
2780 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2781 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2782 | ||
2783 | mvmvif->queue_params[ac] = *params; | |
2784 | ||
2785 | /* | |
2786 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2787 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2788 | */ | |
2789 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2790 | int ret; | |
2791 | ||
2792 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2793 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2794 | mutex_unlock(&mvm->mutex); |
2795 | return ret; | |
2796 | } | |
2797 | return 0; | |
2798 | } | |
2799 | ||
2800 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2801 | struct ieee80211_vif *vif) | |
2802 | { | |
2803 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
7c70fee5 SS |
2804 | u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS; |
2805 | u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS; | |
8ca151b5 JB |
2806 | |
2807 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2808 | return; | |
2809 | ||
576eeee9 EP |
2810 | /* |
2811 | * iwl_mvm_protect_session() reads directly from the device | |
2812 | * (the system time), so make sure it is available. | |
2813 | */ | |
2814 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2815 | return; | |
2816 | ||
8ca151b5 JB |
2817 | mutex_lock(&mvm->mutex); |
2818 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2819 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2820 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2821 | |
2822 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2823 | } |
2824 | ||
35a000b7 DS |
2825 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2826 | struct ieee80211_vif *vif, | |
2827 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2828 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2829 | { |
2830 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
35a000b7 | 2831 | |
35a000b7 | 2832 | int ret; |
4660dfbb | 2833 | |
35a000b7 DS |
2834 | mutex_lock(&mvm->mutex); |
2835 | ||
1f940386 | 2836 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2837 | ret = -EBUSY; |
2838 | goto out; | |
2839 | } | |
2840 | ||
19945dfb | 2841 | ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); |
d2496221 | 2842 | |
35a000b7 DS |
2843 | out: |
2844 | mutex_unlock(&mvm->mutex); | |
2845 | return ret; | |
2846 | } | |
2847 | ||
37e3308c JB |
2848 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2849 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2850 | { |
2851 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2852 | int ret; |
35a000b7 DS |
2853 | |
2854 | mutex_lock(&mvm->mutex); | |
e7d3abab LC |
2855 | |
2856 | /* Due to a race condition, it's possible that mac80211 asks | |
2857 | * us to stop a sched_scan when it's already stopped. This | |
2858 | * can happen, for instance, if we stopped the scan ourselves, | |
2859 | * called ieee80211_sched_scan_stopped() and the userspace called | |
2860 | * stop sched scan scan before ieee80211_sched_scan_stopped_work() | |
2861 | * could run. To handle this, simply return if the scan is | |
2862 | * not running. | |
2863 | */ | |
262888fc | 2864 | if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { |
e7d3abab LC |
2865 | mutex_unlock(&mvm->mutex); |
2866 | return 0; | |
2867 | } | |
2868 | ||
c7d42480 | 2869 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); |
35a000b7 | 2870 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2871 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2872 | |
33ea27f6 | 2873 | return ret; |
35a000b7 DS |
2874 | } |
2875 | ||
8ca151b5 JB |
2876 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2877 | enum set_key_cmd cmd, | |
2878 | struct ieee80211_vif *vif, | |
2879 | struct ieee80211_sta *sta, | |
2880 | struct ieee80211_key_conf *key) | |
2881 | { | |
2882 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
f5e28eac JB |
2883 | struct iwl_mvm_sta *mvmsta; |
2884 | struct iwl_mvm_key_pn *ptk_pn; | |
2885 | int keyidx = key->keyidx; | |
8ca151b5 | 2886 | int ret; |
d6ee54a9 | 2887 | u8 key_offset; |
8ca151b5 | 2888 | |
3b37f4c9 | 2889 | if (iwlwifi_mod_params.swcrypto) { |
8ca151b5 JB |
2890 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); |
2891 | return -EOPNOTSUPP; | |
2892 | } | |
2893 | ||
2894 | switch (key->cipher) { | |
2895 | case WLAN_CIPHER_SUITE_TKIP: | |
2896 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
1ad4f639 | 2897 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; |
8ca151b5 | 2898 | break; |
ca8c0f4b | 2899 | case WLAN_CIPHER_SUITE_CCMP: |
2a53d166 AB |
2900 | case WLAN_CIPHER_SUITE_GCMP: |
2901 | case WLAN_CIPHER_SUITE_GCMP_256: | |
85aeb58c DS |
2902 | if (!iwl_mvm_has_new_tx_api(mvm)) |
2903 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
ca8c0f4b | 2904 | break; |
8ca151b5 | 2905 | case WLAN_CIPHER_SUITE_AES_CMAC: |
8e160ab8 AB |
2906 | case WLAN_CIPHER_SUITE_BIP_GMAC_128: |
2907 | case WLAN_CIPHER_SUITE_BIP_GMAC_256: | |
30686bf7 | 2908 | WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE)); |
8ca151b5 JB |
2909 | break; |
2910 | case WLAN_CIPHER_SUITE_WEP40: | |
2911 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2912 | /* For non-client mode, only use WEP keys for TX as we probably |
2913 | * don't have a station yet anyway and would then have to keep | |
2914 | * track of the keys, linking them to each of the clients/peers | |
2915 | * as they appear. For now, don't do that, for performance WEP | |
2916 | * offload doesn't really matter much, but we need it for some | |
2917 | * other offload features in client mode. | |
8ca151b5 | 2918 | */ |
ba3943b0 JB |
2919 | if (vif->type != NL80211_IFTYPE_STATION) |
2920 | return 0; | |
2921 | break; | |
8ca151b5 | 2922 | default: |
e36e5433 MS |
2923 | /* currently FW supports only one optional cipher scheme */ |
2924 | if (hw->n_cipher_schemes && | |
2925 | hw->cipher_schemes->cipher == key->cipher) | |
2926 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2927 | else | |
2928 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2929 | } |
2930 | ||
2931 | mutex_lock(&mvm->mutex); | |
2932 | ||
2933 | switch (cmd) { | |
2934 | case SET_KEY: | |
5023d966 JB |
2935 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2936 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2937 | /* | |
2938 | * GTK on AP interface is a TX-only key, return 0; | |
2939 | * on IBSS they're per-station and because we're lazy | |
2940 | * we don't support them for RX, so do the same. | |
8e160ab8 | 2941 | * CMAC/GMAC in AP/IBSS modes must be done in software. |
5023d966 | 2942 | */ |
8e160ab8 AB |
2943 | if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC || |
2944 | key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 || | |
2945 | key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) | |
81279c49 JB |
2946 | ret = -EOPNOTSUPP; |
2947 | else | |
2948 | ret = 0; | |
85aeb58c DS |
2949 | |
2950 | if (key->cipher != WLAN_CIPHER_SUITE_GCMP && | |
2951 | key->cipher != WLAN_CIPHER_SUITE_GCMP_256 && | |
2952 | !iwl_mvm_has_new_tx_api(mvm)) { | |
2953 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
2954 | break; | |
2955 | } | |
6caffd4f JB |
2956 | } |
2957 | ||
b546dcd6 JB |
2958 | /* During FW restart, in order to restore the state as it was, |
2959 | * don't try to reprogram keys we previously failed for. | |
2960 | */ | |
2961 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2962 | key->hw_key_idx == STA_KEY_IDX_INVALID) { | |
2963 | IWL_DEBUG_MAC80211(mvm, | |
2964 | "skip invalid idx key programming during restart\n"); | |
2965 | ret = 0; | |
2966 | break; | |
2967 | } | |
2968 | ||
f5e28eac JB |
2969 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && |
2970 | sta && iwl_mvm_has_new_rx_api(mvm) && | |
2971 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
2972 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
2973 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
2974 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
2975 | struct ieee80211_key_seq seq; |
2976 | int tid, q; | |
2977 | ||
2978 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
2979 | WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx])); | |
2980 | ptk_pn = kzalloc(sizeof(*ptk_pn) + | |
2981 | mvm->trans->num_rx_queues * | |
2982 | sizeof(ptk_pn->q[0]), | |
2983 | GFP_KERNEL); | |
2984 | if (!ptk_pn) { | |
2985 | ret = -ENOMEM; | |
2986 | break; | |
2987 | } | |
2988 | ||
2989 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2990 | ieee80211_get_key_rx_seq(key, tid, &seq); | |
2991 | for (q = 0; q < mvm->trans->num_rx_queues; q++) | |
2992 | memcpy(ptk_pn->q[q].pn[tid], | |
2993 | seq.ccmp.pn, | |
2994 | IEEE80211_CCMP_PN_LEN); | |
2995 | } | |
2996 | ||
2997 | rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn); | |
2998 | } | |
2999 | ||
d6ee54a9 LC |
3000 | /* in HW restart reuse the index, otherwise request a new one */ |
3001 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
3002 | key_offset = key->hw_key_idx; | |
3003 | else | |
3004 | key_offset = STA_KEY_IDX_INVALID; | |
3005 | ||
8ca151b5 | 3006 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
d6ee54a9 | 3007 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset); |
8ca151b5 JB |
3008 | if (ret) { |
3009 | IWL_WARN(mvm, "set key failed\n"); | |
3010 | /* | |
3011 | * can't add key for RX, but we don't need it | |
3012 | * in the device for TX so still return 0 | |
3013 | */ | |
6caffd4f | 3014 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
3015 | ret = 0; |
3016 | } | |
3017 | ||
3018 | break; | |
3019 | case DISABLE_KEY: | |
6caffd4f JB |
3020 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
3021 | ret = 0; | |
3022 | break; | |
3023 | } | |
3024 | ||
f5e28eac JB |
3025 | if (sta && iwl_mvm_has_new_rx_api(mvm) && |
3026 | key->flags & IEEE80211_KEY_FLAG_PAIRWISE && | |
3027 | (key->cipher == WLAN_CIPHER_SUITE_CCMP || | |
2a53d166 AB |
3028 | key->cipher == WLAN_CIPHER_SUITE_GCMP || |
3029 | key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) { | |
f5e28eac JB |
3030 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3031 | ptk_pn = rcu_dereference_protected( | |
3032 | mvmsta->ptk_pn[keyidx], | |
3033 | lockdep_is_held(&mvm->mutex)); | |
3034 | RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL); | |
3035 | if (ptk_pn) | |
3036 | kfree_rcu(ptk_pn, rcu_head); | |
3037 | } | |
3038 | ||
8ca151b5 JB |
3039 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
3040 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
3041 | break; | |
3042 | default: | |
3043 | ret = -EINVAL; | |
3044 | } | |
3045 | ||
3046 | mutex_unlock(&mvm->mutex); | |
3047 | return ret; | |
3048 | } | |
3049 | ||
3050 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
3051 | struct ieee80211_vif *vif, | |
3052 | struct ieee80211_key_conf *keyconf, | |
3053 | struct ieee80211_sta *sta, | |
3054 | u32 iv32, u16 *phase1key) | |
3055 | { | |
3056 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3057 | ||
5023d966 JB |
3058 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
3059 | return; | |
3060 | ||
8ca151b5 JB |
3061 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
3062 | } | |
3063 | ||
3064 | ||
b112889c AM |
3065 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
3066 | struct iwl_rx_packet *pkt, void *data) | |
3067 | { | |
3068 | struct iwl_mvm *mvm = | |
3069 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
3070 | struct iwl_hs20_roc_res *resp; | |
3071 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
3072 | struct iwl_mvm_time_event_data *te_data = data; | |
3073 | ||
3074 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
3075 | return true; | |
3076 | ||
3077 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
3078 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
3079 | return true; | |
3080 | } | |
3081 | ||
3082 | resp = (void *)pkt->data; | |
3083 | ||
3084 | IWL_DEBUG_TE(mvm, | |
3085 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
3086 | resp->status, resp->event_unique_id); | |
3087 | ||
3088 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
3089 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
3090 | te_data->uid); | |
3091 | ||
3092 | spin_lock_bh(&mvm->time_event_lock); | |
3093 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
3094 | spin_unlock_bh(&mvm->time_event_lock); | |
3095 | ||
3096 | return true; | |
3097 | } | |
3098 | ||
dc28e12f MG |
3099 | #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100) |
3100 | #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200) | |
3101 | #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600) | |
3102 | #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20) | |
3103 | #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10) | |
b112889c AM |
3104 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
3105 | struct ieee80211_channel *channel, | |
3106 | struct ieee80211_vif *vif, | |
3107 | int duration) | |
3108 | { | |
3109 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
3110 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3111 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
6eb031d2 | 3112 | static const u16 time_event_response[] = { HOT_SPOT_CMD }; |
b112889c | 3113 | struct iwl_notification_wait wait_time_event; |
dc28e12f MG |
3114 | u32 dtim_interval = vif->bss_conf.dtim_period * |
3115 | vif->bss_conf.beacon_int; | |
3116 | u32 req_dur, delay; | |
b112889c AM |
3117 | struct iwl_hs20_roc_req aux_roc_req = { |
3118 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
3119 | .id_and_color = | |
3120 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
3121 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
3122 | /* Set the channel info data */ | |
57fbcce3 | 3123 | .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ? |
b112889c AM |
3124 | PHY_BAND_24 : PHY_BAND_5, |
3125 | .channel_info.channel = channel->hw_value, | |
3126 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
3127 | /* Set the time and duration */ | |
3128 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
b112889c AM |
3129 | }; |
3130 | ||
dc28e12f MG |
3131 | delay = AUX_ROC_MIN_DELAY; |
3132 | req_dur = MSEC_TO_TU(duration); | |
3133 | ||
3134 | /* | |
3135 | * If we are associated we want the delay time to be at least one | |
3136 | * dtim interval so that the FW can wait until after the DTIM and | |
3137 | * then start the time event, this will potentially allow us to | |
3138 | * remain off-channel for the max duration. | |
3139 | * Since we want to use almost a whole dtim interval we would also | |
3140 | * like the delay to be for 2-3 dtim intervals, in case there are | |
3141 | * other time events with higher priority. | |
3142 | */ | |
3143 | if (vif->bss_conf.assoc) { | |
3144 | delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY); | |
3145 | /* We cannot remain off-channel longer than the DTIM interval */ | |
3146 | if (dtim_interval <= req_dur) { | |
3147 | req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER; | |
3148 | if (req_dur <= AUX_ROC_MIN_DURATION) | |
3149 | req_dur = dtim_interval - | |
3150 | AUX_ROC_MIN_SAFETY_BUFFER; | |
3151 | } | |
3152 | } | |
3153 | ||
3154 | aux_roc_req.duration = cpu_to_le32(req_dur); | |
3155 | aux_roc_req.apply_time_max_delay = cpu_to_le32(delay); | |
3156 | ||
3157 | IWL_DEBUG_TE(mvm, | |
3158 | "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n", | |
3159 | channel->hw_value, req_dur, duration, delay, | |
3160 | dtim_interval); | |
b112889c AM |
3161 | /* Set the node address */ |
3162 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
3163 | ||
a6cc5163 MG |
3164 | lockdep_assert_held(&mvm->mutex); |
3165 | ||
3166 | spin_lock_bh(&mvm->time_event_lock); | |
3167 | ||
3168 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
3169 | spin_unlock_bh(&mvm->time_event_lock); | |
3170 | return -EIO; | |
3171 | } | |
3172 | ||
b112889c AM |
3173 | te_data->vif = vif; |
3174 | te_data->duration = duration; | |
3175 | te_data->id = HOT_SPOT_CMD; | |
3176 | ||
b112889c AM |
3177 | spin_unlock_bh(&mvm->time_event_lock); |
3178 | ||
3179 | /* | |
3180 | * Use a notification wait, which really just processes the | |
3181 | * command response and doesn't wait for anything, in order | |
3182 | * to be able to process the response and get the UID inside | |
3183 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
3184 | * stores the buffer and then wakes up this thread, by which | |
3185 | * time another notification (that the time event started) | |
3186 | * might already be processed unsuccessfully. | |
3187 | */ | |
3188 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
3189 | time_event_response, | |
3190 | ARRAY_SIZE(time_event_response), | |
3191 | iwl_mvm_rx_aux_roc, te_data); | |
3192 | ||
3193 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
3194 | &aux_roc_req); | |
3195 | ||
3196 | if (res) { | |
3197 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
3198 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
3199 | goto out_clear_te; | |
3200 | } | |
3201 | ||
3202 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
3203 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
3204 | /* should never fail */ | |
3205 | WARN_ON_ONCE(res); | |
3206 | ||
3207 | if (res) { | |
3208 | out_clear_te: | |
3209 | spin_lock_bh(&mvm->time_event_lock); | |
3210 | iwl_mvm_te_clear_data(mvm, te_data); | |
3211 | spin_unlock_bh(&mvm->time_event_lock); | |
3212 | } | |
3213 | ||
3214 | return res; | |
3215 | } | |
3216 | ||
8ca151b5 JB |
3217 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
3218 | struct ieee80211_vif *vif, | |
3219 | struct ieee80211_channel *channel, | |
d339d5ca IP |
3220 | int duration, |
3221 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
3222 | { |
3223 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 3224 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 3225 | struct cfg80211_chan_def chandef; |
31d385ae IP |
3226 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
3227 | int ret, i; | |
3228 | ||
3229 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
3230 | duration, type); | |
8ca151b5 | 3231 | |
9834781c JB |
3232 | /* |
3233 | * Flush the done work, just in case it's still pending, so that | |
3234 | * the work it does can complete and we can accept new frames. | |
3235 | */ | |
6ed13164 MG |
3236 | flush_work(&mvm->roc_done_wk); |
3237 | ||
a6cc5163 MG |
3238 | mutex_lock(&mvm->mutex); |
3239 | ||
b112889c AM |
3240 | switch (vif->type) { |
3241 | case NL80211_IFTYPE_STATION: | |
859d914c JB |
3242 | if (fw_has_capa(&mvm->fw->ucode_capa, |
3243 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) { | |
5ac6c72e LC |
3244 | /* Use aux roc framework (HS20) */ |
3245 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
3246 | vif, duration); | |
3247 | goto out_unlock; | |
3248 | } | |
3249 | IWL_ERR(mvm, "hotspot not supported\n"); | |
3250 | ret = -EINVAL; | |
a6cc5163 | 3251 | goto out_unlock; |
b112889c AM |
3252 | case NL80211_IFTYPE_P2P_DEVICE: |
3253 | /* handle below */ | |
3254 | break; | |
3255 | default: | |
3256 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
3257 | ret = -EINVAL; |
3258 | goto out_unlock; | |
8ca151b5 JB |
3259 | } |
3260 | ||
31d385ae IP |
3261 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3262 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3263 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3264 | continue; | |
3265 | ||
3266 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3267 | /* | |
3268 | * Unbind the P2P_DEVICE from the current PHY context, | |
3269 | * and if the PHY context is not used remove it. | |
3270 | */ | |
3271 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3272 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3273 | goto out_unlock; | |
3274 | ||
3275 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3276 | ||
3277 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3278 | mvmvif->phy_ctxt = phy_ctxt; | |
3279 | ||
3280 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3281 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3282 | goto out_unlock; | |
3283 | ||
3284 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3285 | goto schedule_time_event; | |
3286 | } | |
3287 | } | |
3288 | ||
3289 | /* Need to update the PHY context only if the ROC channel changed */ | |
3290 | if (channel == mvmvif->phy_ctxt->channel) | |
3291 | goto schedule_time_event; | |
3292 | ||
8ca151b5 | 3293 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3294 | |
31d385ae IP |
3295 | /* |
3296 | * Change the PHY context configuration as it is currently referenced | |
3297 | * only by the P2P Device MAC | |
3298 | */ | |
3299 | if (mvmvif->phy_ctxt->ref == 1) { | |
3300 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3301 | &chandef, 1, 1); | |
3302 | if (ret) | |
3303 | goto out_unlock; | |
3304 | } else { | |
3305 | /* | |
3306 | * The PHY context is shared with other MACs. Need to remove the | |
3307 | * P2P Device from the binding, allocate an new PHY context and | |
3308 | * create a new binding | |
3309 | */ | |
3310 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3311 | if (!phy_ctxt) { | |
3312 | ret = -ENOSPC; | |
3313 | goto out_unlock; | |
3314 | } | |
3315 | ||
3316 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3317 | 1, 1); | |
3318 | if (ret) { | |
3319 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3320 | goto out_unlock; | |
3321 | } | |
3322 | ||
3323 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3324 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3325 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3326 | goto out_unlock; | |
3327 | ||
3328 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3329 | ||
3330 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3331 | mvmvif->phy_ctxt = phy_ctxt; | |
3332 | ||
3333 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3334 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3335 | goto out_unlock; | |
3336 | ||
3337 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3338 | } | |
3339 | ||
3340 | schedule_time_event: | |
8ca151b5 | 3341 | /* Schedule the time events */ |
e635c797 | 3342 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3343 | |
31d385ae | 3344 | out_unlock: |
8ca151b5 JB |
3345 | mutex_unlock(&mvm->mutex); |
3346 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3347 | return ret; |
3348 | } | |
3349 | ||
3350 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3351 | { | |
3352 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3353 | ||
3354 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3355 | ||
3356 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3357 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3358 | mutex_unlock(&mvm->mutex); |
3359 | ||
3360 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3361 | return 0; | |
3362 | } | |
3363 | ||
b08c1d97 LC |
3364 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3365 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3366 | { |
fe0f2de3 IP |
3367 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3368 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3369 | int ret; |
3370 | ||
b08c1d97 LC |
3371 | lockdep_assert_held(&mvm->mutex); |
3372 | ||
53a9d61e | 3373 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3374 | |
fe0f2de3 IP |
3375 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3376 | if (!phy_ctxt) { | |
3377 | ret = -ENOSPC; | |
3378 | goto out; | |
3379 | } | |
8ca151b5 | 3380 | |
dcbc3e1a | 3381 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3382 | ctx->rx_chains_static, |
3383 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3384 | if (ret) { |
3385 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3386 | goto out; | |
3387 | } | |
3388 | ||
53a9d61e | 3389 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3390 | *phy_ctxt_id = phy_ctxt->id; |
3391 | out: | |
b08c1d97 LC |
3392 | return ret; |
3393 | } | |
3394 | ||
3395 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3396 | struct ieee80211_chanctx_conf *ctx) | |
3397 | { | |
3398 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3399 | int ret; | |
3400 | ||
3401 | mutex_lock(&mvm->mutex); | |
3402 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3403 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3404 | |
8ca151b5 JB |
3405 | return ret; |
3406 | } | |
3407 | ||
b08c1d97 LC |
3408 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3409 | struct ieee80211_chanctx_conf *ctx) | |
3410 | { | |
3411 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3412 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3413 | ||
3414 | lockdep_assert_held(&mvm->mutex); | |
3415 | ||
3416 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3417 | } | |
3418 | ||
8ca151b5 JB |
3419 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3420 | struct ieee80211_chanctx_conf *ctx) | |
3421 | { | |
3422 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3423 | |
3424 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3425 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3426 | mutex_unlock(&mvm->mutex); |
3427 | } | |
3428 | ||
3429 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3430 | struct ieee80211_chanctx_conf *ctx, | |
3431 | u32 changed) | |
3432 | { | |
3433 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3434 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3435 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3436 | |
31d385ae IP |
3437 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3438 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3439 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3440 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3441 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3442 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3443 | phy_ctxt->ref, changed)) | |
3444 | return; | |
3445 | ||
8ca151b5 | 3446 | mutex_lock(&mvm->mutex); |
7a20bcce EG |
3447 | |
3448 | /* we are only changing the min_width, may be a noop */ | |
3449 | if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) { | |
3450 | if (phy_ctxt->width == ctx->min_def.width) | |
3451 | goto out_unlock; | |
3452 | ||
3453 | /* we are just toggling between 20_NOHT and 20 */ | |
3454 | if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 && | |
3455 | ctx->min_def.width <= NL80211_CHAN_WIDTH_20) | |
3456 | goto out_unlock; | |
3457 | } | |
3458 | ||
4d66449a | 3459 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3460 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3461 | ctx->rx_chains_static, |
3462 | ctx->rx_chains_dynamic); | |
7a20bcce EG |
3463 | |
3464 | out_unlock: | |
8ca151b5 JB |
3465 | mutex_unlock(&mvm->mutex); |
3466 | } | |
3467 | ||
b08c1d97 LC |
3468 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3469 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3470 | struct ieee80211_chanctx_conf *ctx, |
3471 | bool switching_chanctx) | |
8ca151b5 | 3472 | { |
fe0f2de3 IP |
3473 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3474 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3475 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3476 | int ret; | |
3477 | ||
b08c1d97 | 3478 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3479 | |
fe0f2de3 | 3480 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3481 | |
3482 | switch (vif->type) { | |
3483 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3484 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3485 | if (switching_chanctx) { | |
bd3398e2 AO |
3486 | mvmvif->ap_ibss_active = true; |
3487 | break; | |
3488 | } | |
5023d966 | 3489 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3490 | /* |
3491 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3492 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3493 | */ |
3494 | ret = 0; | |
b08c1d97 | 3495 | goto out; |
8ca151b5 | 3496 | case NL80211_IFTYPE_STATION: |
2533edce | 3497 | break; |
8ca151b5 | 3498 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3499 | /* always disable PS when a monitor interface is active */ |
3500 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3501 | break; |
3502 | default: | |
3503 | ret = -EINVAL; | |
b08c1d97 | 3504 | goto out; |
8ca151b5 JB |
3505 | } |
3506 | ||
3507 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3508 | if (ret) | |
b08c1d97 | 3509 | goto out; |
8ca151b5 JB |
3510 | |
3511 | /* | |
92d85562 AB |
3512 | * Power state must be updated before quotas, |
3513 | * otherwise fw will complain. | |
3514 | */ | |
999609f1 | 3515 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3516 | |
3517 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3518 | * interfaces. For the other types, the bss_info changed flow |
3519 | * will handle quota settings. | |
3520 | */ | |
3521 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3522 | mvmvif->monitor_active = true; |
7754ae79 | 3523 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
3524 | if (ret) |
3525 | goto out_remove_binding; | |
0e39eb03 CRI |
3526 | |
3527 | ret = iwl_mvm_add_snif_sta(mvm, vif); | |
3528 | if (ret) | |
3529 | goto out_remove_binding; | |
3530 | ||
8ca151b5 JB |
3531 | } |
3532 | ||
bd3398e2 | 3533 | /* Handle binding during CSA */ |
a57c688d | 3534 | if (vif->type == NL80211_IFTYPE_AP) { |
7754ae79 | 3535 | iwl_mvm_update_quotas(mvm, false, NULL); |
3dfd3a97 | 3536 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3537 | } |
3538 | ||
4741dd04 | 3539 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3540 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3541 | ||
3542 | /* iwl_mvm_protect_session() reads directly from the | |
3543 | * device (the system time), so make sure it is | |
3544 | * available. | |
3545 | */ | |
3546 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3547 | if (ret) | |
3548 | goto out_remove_binding; | |
3549 | ||
3550 | /* Protect the session to make sure we hear the first | |
3551 | * beacon on the new channel. | |
3552 | */ | |
3553 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3554 | vif->bss_conf.beacon_int / 2, | |
3555 | true); | |
3556 | ||
3557 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3558 | ||
7754ae79 | 3559 | iwl_mvm_update_quotas(mvm, false, NULL); |
0ce04ce7 LC |
3560 | } |
3561 | ||
b08c1d97 | 3562 | goto out; |
8ca151b5 | 3563 | |
b08c1d97 | 3564 | out_remove_binding: |
8ca151b5 | 3565 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3566 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3567 | out: |
8ca151b5 JB |
3568 | if (ret) |
3569 | mvmvif->phy_ctxt = NULL; | |
3570 | return ret; | |
3571 | } | |
b08c1d97 LC |
3572 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3573 | struct ieee80211_vif *vif, | |
3574 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3575 | { |
3576 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3577 | int ret; |
8ca151b5 JB |
3578 | |
3579 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3580 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3581 | mutex_unlock(&mvm->mutex); |
3582 | ||
3583 | return ret; | |
3584 | } | |
3585 | ||
3586 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3587 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3588 | struct ieee80211_chanctx_conf *ctx, |
3589 | bool switching_chanctx) | |
b08c1d97 LC |
3590 | { |
3591 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3592 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3593 | |
3594 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3595 | |
3596 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3597 | ||
8ca151b5 | 3598 | switch (vif->type) { |
5023d966 | 3599 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3600 | goto out; |
8ca151b5 | 3601 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3602 | mvmvif->monitor_active = false; |
2533edce | 3603 | mvmvif->ps_disabled = false; |
0e39eb03 | 3604 | iwl_mvm_rm_snif_sta(mvm, vif); |
8ca151b5 | 3605 | break; |
bd3398e2 AO |
3606 | case NL80211_IFTYPE_AP: |
3607 | /* This part is triggered only during CSA */ | |
4741dd04 | 3608 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3609 | goto out; |
bd3398e2 | 3610 | |
7ef0aab6 AO |
3611 | mvmvif->csa_countdown = false; |
3612 | ||
003e5236 AO |
3613 | /* Set CS bit on all the stations */ |
3614 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3615 | ||
3616 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3617 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3618 | ||
bd3398e2 | 3619 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3620 | break; |
3621 | case NL80211_IFTYPE_STATION: | |
3622 | if (!switching_chanctx) | |
3623 | break; | |
3624 | ||
3625 | disabled_vif = vif; | |
3626 | ||
3dfd3a97 | 3627 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3628 | break; |
8ca151b5 JB |
3629 | default: |
3630 | break; | |
3631 | } | |
3632 | ||
7754ae79 | 3633 | iwl_mvm_update_quotas(mvm, false, disabled_vif); |
1e1391ca | 3634 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3635 | |
b08c1d97 | 3636 | out: |
a11e144e | 3637 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3638 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3639 | } |
3640 | ||
3641 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3642 | struct ieee80211_vif *vif, | |
3643 | struct ieee80211_chanctx_conf *ctx) | |
3644 | { | |
3645 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3646 | ||
3647 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3648 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3649 | mutex_unlock(&mvm->mutex); |
3650 | } | |
3651 | ||
50cc9574 LC |
3652 | static int |
3653 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3654 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3655 | { |
b08c1d97 LC |
3656 | int ret; |
3657 | ||
b08c1d97 | 3658 | mutex_lock(&mvm->mutex); |
f0c97783 | 3659 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3660 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3661 | ||
3662 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3663 | if (ret) { | |
3664 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3665 | goto out_reassign; | |
3666 | } | |
3667 | ||
f0c97783 LC |
3668 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3669 | true); | |
b08c1d97 LC |
3670 | if (ret) { |
3671 | IWL_ERR(mvm, | |
3672 | "failed to assign new_ctx during channel switch\n"); | |
3673 | goto out_remove; | |
3674 | } | |
3675 | ||
f697267f AN |
3676 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3677 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3678 | iwl_mvm_teardown_tdls_peers(mvm); | |
3679 | ||
b08c1d97 LC |
3680 | goto out; |
3681 | ||
3682 | out_remove: | |
3683 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3684 | ||
3685 | out_reassign: | |
6fd1fb63 | 3686 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3687 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3688 | goto out_restart; | |
3689 | } | |
3690 | ||
6fd1fb63 LC |
3691 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3692 | true)) { | |
b08c1d97 LC |
3693 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3694 | goto out_restart; | |
3695 | } | |
3696 | ||
3697 | goto out; | |
3698 | ||
3699 | out_restart: | |
3700 | /* things keep failing, better restart the hw */ | |
3701 | iwl_mvm_nic_restart(mvm, false); | |
3702 | ||
3703 | out: | |
3704 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3705 | |
3706 | return ret; | |
3707 | } | |
3708 | ||
48a256e8 LC |
3709 | static int |
3710 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3711 | struct ieee80211_vif_chanctx_switch *vifs) | |
3712 | { | |
3713 | int ret; | |
3714 | ||
3715 | mutex_lock(&mvm->mutex); | |
3716 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3717 | ||
3718 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3719 | true); | |
3720 | if (ret) { | |
3721 | IWL_ERR(mvm, | |
3722 | "failed to assign new_ctx during channel switch\n"); | |
3723 | goto out_reassign; | |
3724 | } | |
3725 | ||
3726 | goto out; | |
3727 | ||
3728 | out_reassign: | |
3729 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3730 | true)) { | |
3731 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3732 | goto out_restart; | |
3733 | } | |
3734 | ||
3735 | goto out; | |
3736 | ||
3737 | out_restart: | |
3738 | /* things keep failing, better restart the hw */ | |
3739 | iwl_mvm_nic_restart(mvm, false); | |
3740 | ||
3741 | out: | |
3742 | mutex_unlock(&mvm->mutex); | |
3743 | ||
3744 | return ret; | |
3745 | } | |
3746 | ||
50cc9574 LC |
3747 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3748 | struct ieee80211_vif_chanctx_switch *vifs, | |
3749 | int n_vifs, | |
3750 | enum ieee80211_chanctx_switch_mode mode) | |
3751 | { | |
3752 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3753 | int ret; | |
3754 | ||
3755 | /* we only support a single-vif right now */ | |
3756 | if (n_vifs > 1) | |
3757 | return -EOPNOTSUPP; | |
3758 | ||
3759 | switch (mode) { | |
3760 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3761 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3762 | break; | |
3763 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3764 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3765 | break; |
3766 | default: | |
3767 | ret = -EOPNOTSUPP; | |
3768 | break; | |
3769 | } | |
3770 | ||
b08c1d97 LC |
3771 | return ret; |
3772 | } | |
3773 | ||
2f0282db JB |
3774 | static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw) |
3775 | { | |
3776 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3777 | ||
3778 | return mvm->ibss_manager; | |
3779 | } | |
3780 | ||
8ca151b5 JB |
3781 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3782 | struct ieee80211_sta *sta, | |
3783 | bool set) | |
3784 | { | |
3785 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3786 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3787 | |
3788 | if (!mvm_sta || !mvm_sta->vif) { | |
3789 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3790 | return -EINVAL; | |
3791 | } | |
3792 | ||
3793 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3794 | } | |
3795 | ||
507cadf2 DS |
3796 | #ifdef CONFIG_NL80211_TESTMODE |
3797 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3798 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3799 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3800 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3801 | }; |
3802 | ||
3803 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3804 | struct ieee80211_vif *vif, | |
3805 | void *data, int len) | |
3806 | { | |
3807 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3808 | int err; | |
3809 | u32 noa_duration; | |
3810 | ||
fceb6435 JB |
3811 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy, |
3812 | NULL); | |
507cadf2 DS |
3813 | if (err) |
3814 | return err; | |
3815 | ||
3816 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3817 | return -EINVAL; | |
3818 | ||
3819 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3820 | case IWL_MVM_TM_CMD_SET_NOA: | |
3821 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3822 | !vif->bss_conf.enable_beacon || | |
3823 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3824 | return -EINVAL; | |
3825 | ||
3826 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3827 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3828 | return -EINVAL; | |
3829 | ||
3830 | mvm->noa_duration = noa_duration; | |
3831 | mvm->noa_vif = vif; | |
3832 | ||
22b21041 | 3833 | return iwl_mvm_update_quotas(mvm, true, NULL); |
f6c6ad42 JB |
3834 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3835 | /* must be associated client vif - ignore authorized */ | |
3836 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3837 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3838 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3839 | return -EINVAL; | |
3840 | ||
3841 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3842 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3843 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3844 | } |
3845 | ||
3846 | return -EOPNOTSUPP; | |
3847 | } | |
3848 | ||
3849 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3850 | struct ieee80211_vif *vif, | |
3851 | void *data, int len) | |
3852 | { | |
3853 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3854 | int err; | |
3855 | ||
3856 | mutex_lock(&mvm->mutex); | |
3857 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3858 | mutex_unlock(&mvm->mutex); | |
3859 | ||
3860 | return err; | |
3861 | } | |
3862 | #endif | |
3863 | ||
622e3f9b LC |
3864 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3865 | struct ieee80211_vif *vif, | |
3866 | struct ieee80211_channel_switch *chsw) | |
3867 | { | |
3868 | /* By implementing this operation, we prevent mac80211 from | |
3869 | * starting its own channel switch timer, so that we can call | |
3870 | * ieee80211_chswitch_done() ourselves at the right time | |
3871 | * (which is when the absence time event starts). | |
3872 | */ | |
3873 | ||
3874 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3875 | "dummy channel switch op\n"); | |
3876 | } | |
3877 | ||
f028905c LC |
3878 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3879 | struct ieee80211_vif *vif, | |
3880 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3881 | { |
3882 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3883 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3884 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3885 | u32 apply_time; |
f028905c | 3886 | int ret; |
bd3398e2 AO |
3887 | |
3888 | mutex_lock(&mvm->mutex); | |
664322fa | 3889 | |
81d62d5a JB |
3890 | mvmvif->csa_failed = false; |
3891 | ||
6b20d774 | 3892 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3893 | chsw->chandef.center_freq1); |
6b20d774 | 3894 | |
7174beb6 JB |
3895 | iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt, |
3896 | ieee80211_vif_to_wdev(vif), | |
3897 | FW_DBG_TRIGGER_CHANNEL_SWITCH); | |
f35d9c55 | 3898 | |
6b20d774 LC |
3899 | switch (vif->type) { |
3900 | case NL80211_IFTYPE_AP: | |
3901 | csa_vif = | |
3902 | rcu_dereference_protected(mvm->csa_vif, | |
3903 | lockdep_is_held(&mvm->mutex)); | |
3904 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3905 | "Another CSA is already in progress")) { | |
3906 | ret = -EBUSY; | |
3907 | goto out_unlock; | |
3908 | } | |
3909 | ||
d3a108a4 AO |
3910 | /* we still didn't unblock tx. prevent new CS meanwhile */ |
3911 | if (rcu_dereference_protected(mvm->csa_tx_blocked_vif, | |
3912 | lockdep_is_held(&mvm->mutex))) { | |
3913 | ret = -EBUSY; | |
3914 | goto out_unlock; | |
3915 | } | |
3916 | ||
6b20d774 | 3917 | rcu_assign_pointer(mvm->csa_vif, vif); |
7ef0aab6 | 3918 | |
7ef0aab6 AO |
3919 | if (WARN_ONCE(mvmvif->csa_countdown, |
3920 | "Previous CSA countdown didn't complete")) { | |
3921 | ret = -EBUSY; | |
3922 | goto out_unlock; | |
3923 | } | |
3924 | ||
d3a108a4 AO |
3925 | mvmvif->csa_target_freq = chsw->chandef.chan->center_freq; |
3926 | ||
6b20d774 | 3927 | break; |
dc88b4ba | 3928 | case NL80211_IFTYPE_STATION: |
4500e133 LC |
3929 | /* Schedule the time event to a bit before beacon 1, |
3930 | * to make sure we're in the new channel when the | |
f5d8f50f IP |
3931 | * GO/AP arrives. In case count <= 1 immediately schedule the |
3932 | * TE (this might result with some packet loss or connection | |
3933 | * loss). | |
4500e133 | 3934 | */ |
f5d8f50f IP |
3935 | if (chsw->count <= 1) |
3936 | apply_time = 0; | |
3937 | else | |
3938 | apply_time = chsw->device_timestamp + | |
3939 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3940 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3941 | |
3942 | if (chsw->block_tx) | |
3943 | iwl_mvm_csa_client_absent(mvm, vif); | |
3944 | ||
4500e133 | 3945 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3946 | apply_time); |
c6e0a3e0 LC |
3947 | if (mvmvif->bf_data.bf_enabled) { |
3948 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3949 | if (ret) | |
3950 | goto out_unlock; | |
3951 | } | |
3952 | ||
dc88b4ba | 3953 | break; |
6b20d774 LC |
3954 | default: |
3955 | break; | |
3956 | } | |
bd3398e2 | 3957 | |
f6c34820 LC |
3958 | mvmvif->ps_disabled = true; |
3959 | ||
3960 | ret = iwl_mvm_power_update_ps(mvm); | |
3961 | if (ret) | |
3962 | goto out_unlock; | |
f028905c | 3963 | |
e198f5e7 AN |
3964 | /* we won't be on this channel any longer */ |
3965 | iwl_mvm_teardown_tdls_peers(mvm); | |
3966 | ||
bd3398e2 AO |
3967 | out_unlock: |
3968 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3969 | |
3970 | return ret; | |
bd3398e2 AO |
3971 | } |
3972 | ||
f6c34820 LC |
3973 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3974 | struct ieee80211_vif *vif) | |
3975 | { | |
3976 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3977 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3978 | int ret; | |
3979 | ||
3980 | mutex_lock(&mvm->mutex); | |
3981 | ||
81d62d5a JB |
3982 | if (mvmvif->csa_failed) { |
3983 | mvmvif->csa_failed = false; | |
3984 | ret = -EIO; | |
3985 | goto out_unlock; | |
3986 | } | |
3987 | ||
a57c688d LC |
3988 | if (vif->type == NL80211_IFTYPE_STATION) { |
3989 | struct iwl_mvm_sta *mvmsta; | |
3990 | ||
3991 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3992 | mvmvif->ap_sta_id); | |
3993 | ||
3994 | if (WARN_ON(!mvmsta)) { | |
3995 | ret = -EIO; | |
3996 | goto out_unlock; | |
3997 | } | |
3998 | ||
3999 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
4000 | ||
4001 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
4002 | |
4003 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
4004 | if (ret) | |
4005 | goto out_unlock; | |
686e7fe1 LC |
4006 | |
4007 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
4008 | } |
4009 | ||
f6c34820 LC |
4010 | mvmvif->ps_disabled = false; |
4011 | ||
4012 | ret = iwl_mvm_power_update_ps(mvm); | |
4013 | ||
a57c688d | 4014 | out_unlock: |
f6c34820 LC |
4015 | mutex_unlock(&mvm->mutex); |
4016 | ||
4017 | return ret; | |
4018 | } | |
4019 | ||
6110d9e5 DS |
4020 | static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop) |
4021 | { | |
435d0827 SS |
4022 | int i; |
4023 | ||
06195639 | 4024 | if (!iwl_mvm_has_new_tx_api(mvm)) { |
309c4848 LC |
4025 | if (drop) { |
4026 | mutex_lock(&mvm->mutex); | |
6110d9e5 | 4027 | iwl_mvm_flush_tx_path(mvm, |
435d0827 | 4028 | iwl_mvm_flushable_queues(mvm) & queues, 0); |
309c4848 LC |
4029 | mutex_unlock(&mvm->mutex); |
4030 | } else { | |
06195639 | 4031 | iwl_trans_wait_tx_queues_empty(mvm->trans, queues); |
309c4848 | 4032 | } |
435d0827 SS |
4033 | return; |
4034 | } | |
6110d9e5 | 4035 | |
435d0827 SS |
4036 | mutex_lock(&mvm->mutex); |
4037 | for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { | |
4038 | struct ieee80211_sta *sta; | |
6110d9e5 | 4039 | |
435d0827 SS |
4040 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], |
4041 | lockdep_is_held(&mvm->mutex)); | |
4042 | if (IS_ERR_OR_NULL(sta)) | |
4043 | continue; | |
6110d9e5 | 4044 | |
06195639 SS |
4045 | if (drop) |
4046 | iwl_mvm_flush_sta_tids(mvm, i, 0xFF, 0); | |
4047 | else | |
4048 | iwl_mvm_wait_sta_queues_empty(mvm, | |
4049 | iwl_mvm_sta_from_mac80211(sta)); | |
6110d9e5 | 4050 | } |
435d0827 | 4051 | mutex_unlock(&mvm->mutex); |
6110d9e5 DS |
4052 | } |
4053 | ||
c5b0e7c0 EG |
4054 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
4055 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
4056 | { | |
4057 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4058 | struct iwl_mvm_vif *mvmvif; | |
4059 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
4060 | struct ieee80211_sta *sta; |
4061 | int i; | |
4062 | u32 msk = 0; | |
c5b0e7c0 | 4063 | |
6110d9e5 DS |
4064 | if (!vif) { |
4065 | iwl_mvm_flush_no_vif(mvm, queues, drop); | |
4066 | return; | |
4067 | } | |
4068 | ||
4069 | if (vif->type != NL80211_IFTYPE_STATION) | |
c5b0e7c0 EG |
4070 | return; |
4071 | ||
24afba76 | 4072 | /* Make sure we're done with the deferred traffic before flushing */ |
c8f54701 | 4073 | flush_work(&mvm->add_stream_wk); |
24afba76 | 4074 | |
c5b0e7c0 EG |
4075 | mutex_lock(&mvm->mutex); |
4076 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 4077 | |
a0f6bf2a | 4078 | /* flush the AP-station and all TDLS peers */ |
0ae98812 | 4079 | for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) { |
a0f6bf2a AN |
4080 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], |
4081 | lockdep_is_held(&mvm->mutex)); | |
4082 | if (IS_ERR_OR_NULL(sta)) | |
4083 | continue; | |
4084 | ||
4085 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
4086 | if (mvmsta->vif != vif) | |
4087 | continue; | |
4088 | ||
4089 | /* make sure only TDLS peers or the AP are flushed */ | |
4090 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
4091 | ||
d49394a1 SS |
4092 | if (drop) { |
4093 | if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0)) | |
4094 | IWL_ERR(mvm, "flush request fail\n"); | |
4095 | } else { | |
4096 | msk |= mvmsta->tfd_queue_msk; | |
d6d517b7 SS |
4097 | if (iwl_mvm_has_new_tx_api(mvm)) |
4098 | iwl_mvm_wait_sta_queues_empty(mvm, mvmsta); | |
d49394a1 | 4099 | } |
480acbce | 4100 | } |
c5b0e7c0 | 4101 | |
d49394a1 | 4102 | mutex_unlock(&mvm->mutex); |
4e6c48e0 | 4103 | |
d49394a1 SS |
4104 | /* this can take a while, and we may need/want other operations |
4105 | * to succeed while doing this, so do it without the mutex held | |
4106 | */ | |
d6d517b7 | 4107 | if (!drop && !iwl_mvm_has_new_tx_api(mvm)) |
a1a57877 | 4108 | iwl_trans_wait_tx_queues_empty(mvm->trans, msk); |
c5b0e7c0 EG |
4109 | } |
4110 | ||
91a8bcde JB |
4111 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
4112 | struct survey_info *survey) | |
4113 | { | |
4114 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4115 | int ret; | |
4116 | ||
4117 | memset(survey, 0, sizeof(*survey)); | |
4118 | ||
4119 | /* only support global statistics right now */ | |
4120 | if (idx != 0) | |
4121 | return -ENOENT; | |
4122 | ||
280a3efa JB |
4123 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
4124 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
91a8bcde JB |
4125 | return -ENOENT; |
4126 | ||
4127 | mutex_lock(&mvm->mutex); | |
4128 | ||
aab6930d | 4129 | if (iwl_mvm_firmware_running(mvm)) { |
33cef925 | 4130 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
4131 | if (ret) |
4132 | goto out; | |
4133 | } | |
4134 | ||
4135 | survey->filled = SURVEY_INFO_TIME | | |
4136 | SURVEY_INFO_TIME_RX | | |
4137 | SURVEY_INFO_TIME_TX | | |
4138 | SURVEY_INFO_TIME_SCAN; | |
4139 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
4140 | mvm->radio_stats.on_time_rf; | |
4141 | do_div(survey->time, USEC_PER_MSEC); | |
4142 | ||
4143 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
4144 | mvm->radio_stats.rx_time; | |
4145 | do_div(survey->time_rx, USEC_PER_MSEC); | |
4146 | ||
4147 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
4148 | mvm->radio_stats.tx_time; | |
4149 | do_div(survey->time_tx, USEC_PER_MSEC); | |
4150 | ||
4151 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
4152 | mvm->radio_stats.on_time_scan; | |
4153 | do_div(survey->time_scan, USEC_PER_MSEC); | |
4154 | ||
10a7c028 | 4155 | ret = 0; |
91a8bcde JB |
4156 | out: |
4157 | mutex_unlock(&mvm->mutex); | |
4158 | return ret; | |
4159 | } | |
4160 | ||
33cef925 JB |
4161 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
4162 | struct ieee80211_vif *vif, | |
4163 | struct ieee80211_sta *sta, | |
4164 | struct station_info *sinfo) | |
4165 | { | |
4166 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4167 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
4168 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
4169 | ||
988b5968 SS |
4170 | if (mvmsta->avg_energy) { |
4171 | sinfo->signal_avg = mvmsta->avg_energy; | |
4172 | sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG); | |
4173 | } | |
4174 | ||
280a3efa JB |
4175 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
4176 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
33cef925 JB |
4177 | return; |
4178 | ||
4179 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
4180 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
4181 | return; | |
4182 | ||
4183 | if (!vif->bss_conf.assoc) | |
4184 | return; | |
4185 | ||
4186 | mutex_lock(&mvm->mutex); | |
4187 | ||
4188 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
4189 | goto unlock; | |
4190 | ||
4191 | if (iwl_mvm_request_statistics(mvm, false)) | |
4192 | goto unlock; | |
4193 | ||
4194 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
4195 | mvmvif->beacon_stats.accu_num_beacons; | |
4196 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
4197 | if (mvmvif->beacon_stats.avg_signal) { | |
4198 | /* firmware only reports a value after RXing a few beacons */ | |
4199 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
4200 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
4201 | } | |
4202 | unlock: | |
4203 | mutex_unlock(&mvm->mutex); | |
4204 | } | |
4205 | ||
4203263d EG |
4206 | static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, |
4207 | struct ieee80211_vif *vif, | |
4208 | const struct ieee80211_event *event) | |
d42f5350 | 4209 | { |
7174beb6 JB |
4210 | #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \ |
4211 | do { \ | |
4212 | if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \ | |
4213 | break; \ | |
4214 | iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \ | |
d42f5350 EG |
4215 | } while (0) |
4216 | ||
d42f5350 EG |
4217 | struct iwl_fw_dbg_trigger_tlv *trig; |
4218 | struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
d42f5350 EG |
4219 | |
4220 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) | |
4221 | return; | |
4222 | ||
d42f5350 EG |
4223 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); |
4224 | trig_mlme = (void *)trig->data; | |
7174beb6 JB |
4225 | if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, |
4226 | ieee80211_vif_to_wdev(vif), trig)) | |
d42f5350 EG |
4227 | return; |
4228 | ||
d42f5350 EG |
4229 | if (event->u.mlme.data == ASSOC_EVENT) { |
4230 | if (event->u.mlme.status == MLME_DENIED) | |
4c324a51 | 4231 | CHECK_MLME_TRIGGER(stop_assoc_denied, |
d42f5350 EG |
4232 | "DENIED ASSOC: reason %d", |
4233 | event->u.mlme.reason); | |
4234 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4c324a51 | 4235 | CHECK_MLME_TRIGGER(stop_assoc_timeout, |
d42f5350 EG |
4236 | "ASSOC TIMEOUT"); |
4237 | } else if (event->u.mlme.data == AUTH_EVENT) { | |
4238 | if (event->u.mlme.status == MLME_DENIED) | |
4c324a51 | 4239 | CHECK_MLME_TRIGGER(stop_auth_denied, |
d42f5350 EG |
4240 | "DENIED AUTH: reason %d", |
4241 | event->u.mlme.reason); | |
4242 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4c324a51 | 4243 | CHECK_MLME_TRIGGER(stop_auth_timeout, |
d42f5350 EG |
4244 | "AUTH TIMEOUT"); |
4245 | } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { | |
4c324a51 | 4246 | CHECK_MLME_TRIGGER(stop_rx_deauth, |
d42f5350 EG |
4247 | "DEAUTH RX %d", event->u.mlme.reason); |
4248 | } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { | |
4c324a51 | 4249 | CHECK_MLME_TRIGGER(stop_tx_deauth, |
d42f5350 EG |
4250 | "DEAUTH TX %d", event->u.mlme.reason); |
4251 | } | |
4252 | #undef CHECK_MLME_TRIGGER | |
4253 | } | |
4254 | ||
4203263d EG |
4255 | static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, |
4256 | struct ieee80211_vif *vif, | |
4257 | const struct ieee80211_event *event) | |
4258 | { | |
4259 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4260 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4261 | ||
4262 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4263 | return; | |
4264 | ||
4265 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4266 | ba_trig = (void *)trig->data; | |
7174beb6 JB |
4267 | if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt, |
4268 | ieee80211_vif_to_wdev(vif), trig)) | |
4203263d EG |
4269 | return; |
4270 | ||
4271 | if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) | |
4272 | return; | |
4273 | ||
7174beb6 JB |
4274 | iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, |
4275 | "BAR received from %pM, tid %d, ssn %d", | |
4276 | event->u.ba.sta->addr, event->u.ba.tid, | |
4277 | event->u.ba.ssn); | |
4203263d EG |
4278 | } |
4279 | ||
4203263d EG |
4280 | static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, |
4281 | struct ieee80211_vif *vif, | |
4282 | const struct ieee80211_event *event) | |
4283 | { | |
4284 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4285 | ||
4286 | switch (event->type) { | |
4287 | case MLME_EVENT: | |
4288 | iwl_mvm_event_mlme_callback(mvm, vif, event); | |
4289 | break; | |
4290 | case BAR_RX_EVENT: | |
4291 | iwl_mvm_event_bar_rx_callback(mvm, vif, event); | |
4292 | break; | |
4293 | case BA_FRAME_TIMEOUT: | |
528a542a EG |
4294 | iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta, |
4295 | event->u.ba.tid); | |
4203263d EG |
4296 | break; |
4297 | default: | |
4298 | break; | |
4299 | } | |
4300 | } | |
4301 | ||
d0ff5d22 SS |
4302 | void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm, |
4303 | struct iwl_mvm_internal_rxq_notif *notif, | |
4304 | u32 size) | |
0636b938 | 4305 | { |
0636b938 SS |
4306 | u32 qmask = BIT(mvm->trans->num_rx_queues) - 1; |
4307 | int ret; | |
4308 | ||
4309 | lockdep_assert_held(&mvm->mutex); | |
4310 | ||
cb8550e1 | 4311 | if (!iwl_mvm_has_new_rx_api(mvm)) |
0636b938 SS |
4312 | return; |
4313 | ||
d0ff5d22 SS |
4314 | notif->cookie = mvm->queue_sync_cookie; |
4315 | ||
4316 | if (notif->sync) | |
4317 | atomic_set(&mvm->queue_sync_counter, | |
4318 | mvm->trans->num_rx_queues); | |
0636b938 | 4319 | |
cb8550e1 | 4320 | /* TODO - remove this when we have RXQ config API */ |
2f7a3863 | 4321 | if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_22000) { |
cb8550e1 SS |
4322 | qmask = BIT(0); |
4323 | if (notif->sync) | |
4324 | atomic_set(&mvm->queue_sync_counter, 1); | |
4325 | } | |
4326 | ||
d0ff5d22 | 4327 | ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size); |
0636b938 SS |
4328 | if (ret) { |
4329 | IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret); | |
4330 | goto out; | |
4331 | } | |
d0ff5d22 | 4332 | |
6ad04359 | 4333 | if (notif->sync) { |
3a732c65 | 4334 | ret = wait_event_timeout(mvm->rx_sync_waitq, |
6ad04359 JB |
4335 | atomic_read(&mvm->queue_sync_counter) == 0 || |
4336 | iwl_mvm_is_radio_killed(mvm), | |
d0ff5d22 | 4337 | HZ); |
6ad04359 JB |
4338 | WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm)); |
4339 | } | |
0636b938 SS |
4340 | |
4341 | out: | |
4342 | atomic_set(&mvm->queue_sync_counter, 0); | |
4343 | mvm->queue_sync_cookie++; | |
4344 | } | |
4345 | ||
4346 | static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw) | |
4347 | { | |
4348 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
d0ff5d22 SS |
4349 | struct iwl_mvm_internal_rxq_notif data = { |
4350 | .type = IWL_MVM_RXQ_EMPTY, | |
4351 | .sync = 1, | |
4352 | }; | |
0636b938 SS |
4353 | |
4354 | mutex_lock(&mvm->mutex); | |
d0ff5d22 | 4355 | iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data)); |
0636b938 SS |
4356 | mutex_unlock(&mvm->mutex); |
4357 | } | |
4358 | ||
e5209263 | 4359 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
4360 | .tx = iwl_mvm_mac_tx, |
4361 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
4362 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 4363 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
4364 | .stop = iwl_mvm_mac_stop, |
4365 | .add_interface = iwl_mvm_mac_add_interface, | |
4366 | .remove_interface = iwl_mvm_mac_remove_interface, | |
4367 | .config = iwl_mvm_mac_config, | |
e59647ea | 4368 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 | 4369 | .configure_filter = iwl_mvm_configure_filter, |
effd1929 | 4370 | .config_iface_filter = iwl_mvm_config_iface_filter, |
8ca151b5 JB |
4371 | .bss_info_changed = iwl_mvm_bss_info_changed, |
4372 | .hw_scan = iwl_mvm_mac_hw_scan, | |
4373 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 4374 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
4375 | .sta_state = iwl_mvm_mac_sta_state, |
4376 | .sta_notify = iwl_mvm_mac_sta_notify, | |
4377 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 4378 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 4379 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 4380 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
4381 | .conf_tx = iwl_mvm_mac_conf_tx, |
4382 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 4383 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 4384 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
4385 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
4386 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
4387 | .set_key = iwl_mvm_mac_set_key, |
4388 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
4389 | .remain_on_channel = iwl_mvm_roc, | |
4390 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
4391 | .add_chanctx = iwl_mvm_add_chanctx, |
4392 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
4393 | .change_chanctx = iwl_mvm_change_chanctx, | |
4394 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
4395 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 4396 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 4397 | |
5023d966 JB |
4398 | .start_ap = iwl_mvm_start_ap_ibss, |
4399 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
4400 | .join_ibss = iwl_mvm_start_ap_ibss, | |
4401 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 | 4402 | |
2f0282db JB |
4403 | .tx_last_beacon = iwl_mvm_tx_last_beacon, |
4404 | ||
8ca151b5 JB |
4405 | .set_tim = iwl_mvm_set_tim, |
4406 | ||
622e3f9b | 4407 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 4408 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 4409 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 4410 | |
1d3c3f63 AN |
4411 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
4412 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
4413 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
4414 | ||
d42f5350 EG |
4415 | .event_callback = iwl_mvm_mac_event_callback, |
4416 | ||
0636b938 SS |
4417 | .sync_rx_queues = iwl_mvm_sync_rx_queues, |
4418 | ||
507cadf2 DS |
4419 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
4420 | ||
8ca151b5 JB |
4421 | #ifdef CONFIG_PM_SLEEP |
4422 | /* look at d3.c */ | |
4423 | .suspend = iwl_mvm_suspend, | |
4424 | .resume = iwl_mvm_resume, | |
4425 | .set_wakeup = iwl_mvm_set_wakeup, | |
4426 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
4427 | #if IS_ENABLED(CONFIG_IPV6) | |
4428 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
4429 | #endif | |
4430 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
4431 | #endif | |
91a8bcde | 4432 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 4433 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
177a11cf GG |
4434 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
4435 | .sta_add_debugfs = iwl_mvm_sta_add_debugfs, | |
4436 | #endif | |
8ca151b5 | 4437 | }; |