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8ca151b5 JB |
1 | /****************************************************************************** |
2 | * | |
3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
4 | * redistributing this file, you may do so under either license. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8b4139dc | 9 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
8ca151b5 JB |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of version 2 of the GNU General Public License as | |
13 | * published by the Free Software Foundation. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, but | |
16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
23 | * USA | |
24 | * | |
25 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 26 | * in the file called COPYING. |
8ca151b5 JB |
27 | * |
28 | * Contact Information: | |
29 | * Intel Linux Wireless <ilw@linux.intel.com> | |
30 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
31 | * | |
32 | * BSD LICENSE | |
33 | * | |
51368bf7 | 34 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8b4139dc | 35 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
8ca151b5 JB |
36 | * All rights reserved. |
37 | * | |
38 | * Redistribution and use in source and binary forms, with or without | |
39 | * modification, are permitted provided that the following conditions | |
40 | * are met: | |
41 | * | |
42 | * * Redistributions of source code must retain the above copyright | |
43 | * notice, this list of conditions and the following disclaimer. | |
44 | * * Redistributions in binary form must reproduce the above copyright | |
45 | * notice, this list of conditions and the following disclaimer in | |
46 | * the documentation and/or other materials provided with the | |
47 | * distribution. | |
48 | * * Neither the name Intel Corporation nor the names of its | |
49 | * contributors may be used to endorse or promote products derived | |
50 | * from this software without specific prior written permission. | |
51 | * | |
52 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
53 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
54 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
55 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
56 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
57 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
58 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
59 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
60 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
61 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
62 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
63 | * | |
64 | *****************************************************************************/ | |
65 | #include <linux/kernel.h> | |
66 | #include <linux/slab.h> | |
67 | #include <linux/skbuff.h> | |
68 | #include <linux/netdevice.h> | |
69 | #include <linux/etherdevice.h> | |
f0c2646a | 70 | #include <linux/ip.h> |
2ee8f021 | 71 | #include <linux/if_arp.h> |
aadede6e | 72 | #include <linux/devcoredump.h> |
8ca151b5 | 73 | #include <net/mac80211.h> |
7b1dd048 | 74 | #include <net/ieee80211_radiotap.h> |
f0c2646a | 75 | #include <net/tcp.h> |
8ca151b5 JB |
76 | |
77 | #include "iwl-op-mode.h" | |
78 | #include "iwl-io.h" | |
79 | #include "mvm.h" | |
80 | #include "sta.h" | |
81 | #include "time-event.h" | |
82 | #include "iwl-eeprom-parse.h" | |
83 | #include "fw-api-scan.h" | |
84 | #include "iwl-phy-db.h" | |
507cadf2 | 85 | #include "testmode.h" |
655e6d6d EG |
86 | #include "iwl-fw-error-dump.h" |
87 | #include "iwl-prph.h" | |
363039be | 88 | #include "iwl-csr.h" |
88931cc9 | 89 | #include "iwl-nvm-parse.h" |
8ca151b5 JB |
90 | |
91 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
92 | { | |
93 | .max = 1, | |
8eb38710 | 94 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 95 | }, |
3c15a0fb JB |
96 | { |
97 | .max = 1, | |
8eb38710 IP |
98 | .types = BIT(NL80211_IFTYPE_AP) | |
99 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
100 | BIT(NL80211_IFTYPE_P2P_GO), |
101 | }, | |
102 | { | |
103 | .max = 1, | |
104 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
105 | }, | |
8ca151b5 JB |
106 | }; |
107 | ||
108 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
109 | { | |
2624a5ca | 110 | .num_different_channels = 2, |
8ca151b5 JB |
111 | .max_interfaces = 3, |
112 | .limits = iwl_mvm_limits, | |
113 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
114 | }, | |
115 | }; | |
116 | ||
f0c2646a JB |
117 | #ifdef CONFIG_PM_SLEEP |
118 | static const struct nl80211_wowlan_tcp_data_token_feature | |
119 | iwl_mvm_wowlan_tcp_token_feature = { | |
120 | .min_len = 0, | |
121 | .max_len = 255, | |
122 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
123 | }; | |
124 | ||
125 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
126 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
127 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
128 | sizeof(struct ethhdr) - | |
129 | sizeof(struct iphdr) - | |
130 | sizeof(struct tcphdr), | |
131 | .data_interval_max = 65535, /* __le16 in API */ | |
132 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
133 | sizeof(struct ethhdr) - | |
134 | sizeof(struct iphdr) - | |
135 | sizeof(struct tcphdr), | |
136 | .seq = true, | |
137 | }; | |
138 | #endif | |
139 | ||
77736923 | 140 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
141 | /* |
142 | * Use the reserved field to indicate magic values. | |
143 | * these values will only be used internally by the driver, | |
144 | * and won't make it to the fw (reserved will be 0). | |
145 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
146 | * be the vif's ip address. in case there is not a single | |
147 | * ip address (0, or more than 1), this attribute will | |
148 | * be skipped. | |
149 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
150 | * the LSB bytes of the vif's mac address | |
151 | */ | |
152 | enum { | |
153 | BC_FILTER_MAGIC_NONE = 0, | |
154 | BC_FILTER_MAGIC_IP, | |
155 | BC_FILTER_MAGIC_MAC, | |
156 | }; | |
157 | ||
77736923 EP |
158 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
159 | { | |
160 | /* arp */ | |
161 | .discard = 0, | |
162 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
163 | .attrs = { | |
164 | { | |
165 | /* frame type - arp, hw type - ethernet */ | |
166 | .offset_type = | |
167 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
168 | .offset = sizeof(rfc1042_header), | |
169 | .val = cpu_to_be32(0x08060001), | |
170 | .mask = cpu_to_be32(0xffffffff), | |
171 | }, | |
2ee8f021 EP |
172 | { |
173 | /* arp dest ip */ | |
174 | .offset_type = | |
175 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
176 | .offset = sizeof(rfc1042_header) + 2 + | |
177 | sizeof(struct arphdr) + | |
178 | ETH_ALEN + sizeof(__be32) + | |
179 | ETH_ALEN, | |
180 | .mask = cpu_to_be32(0xffffffff), | |
181 | /* mark it as special field */ | |
182 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
183 | }, | |
184 | }, | |
185 | }, | |
186 | { | |
187 | /* dhcp offer bcast */ | |
188 | .discard = 0, | |
189 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
190 | .attrs = { | |
191 | { | |
192 | /* udp dest port - 68 (bootp client)*/ | |
193 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
194 | .offset = offsetof(struct udphdr, dest), | |
195 | .val = cpu_to_be32(0x00440000), | |
196 | .mask = cpu_to_be32(0xffff0000), | |
197 | }, | |
198 | { | |
199 | /* dhcp - lsb bytes of client hw address */ | |
200 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
201 | .offset = 38, | |
202 | .mask = cpu_to_be32(0xffffffff), | |
203 | /* mark it as special field */ | |
204 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
205 | }, | |
77736923 EP |
206 | }, |
207 | }, | |
208 | /* last filter must be empty */ | |
209 | {}, | |
210 | }; | |
211 | #endif | |
212 | ||
7498cf4c EP |
213 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
214 | { | |
7bb426ea | 215 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
216 | return; |
217 | ||
218 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
219 | spin_lock_bh(&mvm->refs_lock); |
220 | mvm->refs[ref_type]++; | |
221 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
222 | iwl_trans_ref(mvm->trans); |
223 | } | |
224 | ||
225 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
226 | { | |
7bb426ea | 227 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
228 | return; |
229 | ||
230 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
231 | spin_lock_bh(&mvm->refs_lock); |
232 | WARN_ON(!mvm->refs[ref_type]--); | |
233 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
234 | iwl_trans_unref(mvm->trans); |
235 | } | |
236 | ||
576eeee9 EP |
237 | static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
238 | enum iwl_mvm_ref_type except_ref) | |
7498cf4c | 239 | { |
576eeee9 | 240 | int i, j; |
7498cf4c | 241 | |
7bb426ea | 242 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
243 | return; |
244 | ||
576eeee9 EP |
245 | spin_lock_bh(&mvm->refs_lock); |
246 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
247 | if (except_ref == i || !mvm->refs[i]) | |
7498cf4c EP |
248 | continue; |
249 | ||
576eeee9 EP |
250 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
251 | i, mvm->refs[i]); | |
252 | for (j = 0; j < mvm->refs[i]; j++) | |
253 | iwl_trans_unref(mvm->trans); | |
254 | mvm->refs[i] = 0; | |
7498cf4c | 255 | } |
576eeee9 | 256 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
257 | } |
258 | ||
f4cf8680 EP |
259 | bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) |
260 | { | |
261 | int i; | |
262 | bool taken = false; | |
263 | ||
264 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
265 | return true; | |
266 | ||
267 | spin_lock_bh(&mvm->refs_lock); | |
268 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
269 | if (mvm->refs[i]) { | |
270 | taken = true; | |
271 | break; | |
272 | } | |
273 | } | |
274 | spin_unlock_bh(&mvm->refs_lock); | |
275 | ||
276 | return taken; | |
277 | } | |
278 | ||
576eeee9 | 279 | int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
d40fc489 GG |
280 | { |
281 | iwl_mvm_ref(mvm, ref_type); | |
282 | ||
283 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
284 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), | |
285 | HZ)) { | |
286 | WARN_ON_ONCE(1); | |
287 | iwl_mvm_unref(mvm, ref_type); | |
288 | return -EIO; | |
289 | } | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
fe0f2de3 IP |
294 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
295 | { | |
296 | int i; | |
297 | ||
298 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
299 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
300 | mvm->phy_ctxts[i].id = i; | |
301 | mvm->phy_ctxts[i].ref = 0; | |
302 | } | |
303 | } | |
304 | ||
88931cc9 | 305 | struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, |
8ba2d7a1 | 306 | const char *alpha2, |
47c8b154 JD |
307 | enum iwl_mcc_source src_id, |
308 | bool *changed) | |
88931cc9 AN |
309 | { |
310 | struct ieee80211_regdomain *regd = NULL; | |
311 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
312 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
313 | struct iwl_mcc_update_resp *resp; | |
314 | ||
315 | IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); | |
316 | ||
8ba2d7a1 | 317 | lockdep_assert_held(&mvm->mutex); |
88931cc9 | 318 | |
8ba2d7a1 | 319 | resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); |
88931cc9 AN |
320 | if (IS_ERR_OR_NULL(resp)) { |
321 | IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", | |
322 | PTR_RET(resp)); | |
8ba2d7a1 | 323 | goto out; |
88931cc9 AN |
324 | } |
325 | ||
47c8b154 JD |
326 | if (changed) |
327 | *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); | |
328 | ||
162ee3c9 | 329 | regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, |
88931cc9 AN |
330 | __le32_to_cpu(resp->n_channels), |
331 | resp->channels, | |
332 | __le16_to_cpu(resp->mcc)); | |
8ba2d7a1 EH |
333 | /* Store the return source id */ |
334 | src_id = resp->source_id; | |
88931cc9 AN |
335 | kfree(resp); |
336 | if (IS_ERR_OR_NULL(regd)) { | |
337 | IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", | |
8ba2d7a1 EH |
338 | PTR_RET(regd)); |
339 | goto out; | |
88931cc9 AN |
340 | } |
341 | ||
8ba2d7a1 EH |
342 | IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", |
343 | regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); | |
88931cc9 | 344 | mvm->lar_regdom_set = true; |
8ba2d7a1 | 345 | mvm->mcc_src = src_id; |
88931cc9 | 346 | |
8ba2d7a1 | 347 | out: |
88931cc9 AN |
348 | return regd; |
349 | } | |
350 | ||
47c8b154 JD |
351 | void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) |
352 | { | |
353 | bool changed; | |
354 | struct ieee80211_regdomain *regd; | |
355 | ||
356 | if (!iwl_mvm_is_lar_supported(mvm)) | |
357 | return; | |
358 | ||
359 | regd = iwl_mvm_get_current_regdomain(mvm, &changed); | |
360 | if (!IS_ERR_OR_NULL(regd)) { | |
361 | /* only update the regulatory core if changed */ | |
362 | if (changed) | |
363 | regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); | |
364 | ||
365 | kfree(regd); | |
366 | } | |
367 | } | |
368 | ||
369 | struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, | |
370 | bool *changed) | |
8ba2d7a1 EH |
371 | { |
372 | return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", | |
373 | iwl_mvm_is_wifi_mcc_supported(mvm) ? | |
374 | MCC_SOURCE_GET_CURRENT : | |
47c8b154 | 375 | MCC_SOURCE_OLD_FW, changed); |
8ba2d7a1 EH |
376 | } |
377 | ||
378 | int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) | |
379 | { | |
380 | enum iwl_mcc_source used_src; | |
381 | struct ieee80211_regdomain *regd; | |
b6e160ab AN |
382 | int ret; |
383 | bool changed; | |
8ba2d7a1 EH |
384 | const struct ieee80211_regdomain *r = |
385 | rtnl_dereference(mvm->hw->wiphy->regd); | |
386 | ||
387 | if (!r) | |
b6e160ab | 388 | return -ENOENT; |
8ba2d7a1 EH |
389 | |
390 | /* save the last source in case we overwrite it below */ | |
391 | used_src = mvm->mcc_src; | |
392 | if (iwl_mvm_is_wifi_mcc_supported(mvm)) { | |
393 | /* Notify the firmware we support wifi location updates */ | |
47c8b154 | 394 | regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
8ba2d7a1 EH |
395 | if (!IS_ERR_OR_NULL(regd)) |
396 | kfree(regd); | |
397 | } | |
398 | ||
399 | /* Now set our last stored MCC and source */ | |
b6e160ab AN |
400 | regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, |
401 | &changed); | |
8ba2d7a1 EH |
402 | if (IS_ERR_OR_NULL(regd)) |
403 | return -EIO; | |
404 | ||
b6e160ab AN |
405 | /* update cfg80211 if the regdomain was changed */ |
406 | if (changed) | |
407 | ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); | |
408 | else | |
409 | ret = 0; | |
8ba2d7a1 | 410 | |
b6e160ab AN |
411 | kfree(regd); |
412 | return ret; | |
8ba2d7a1 EH |
413 | } |
414 | ||
8ca151b5 JB |
415 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
416 | { | |
417 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 418 | int num_mac, ret, i; |
8ca151b5 JB |
419 | |
420 | /* Tell mac80211 our characteristics */ | |
421 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
422 | IEEE80211_HW_SPECTRUM_MGMT | | |
423 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
424 | IEEE80211_HW_QUEUE_CONTROL | | |
425 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
426 | IEEE80211_HW_SUPPORTS_PS | |
427 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 428 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 429 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be | 430 | IEEE80211_HW_CONNECTION_MONITOR | |
b71d9c8a IY |
431 | IEEE80211_HW_CHANCTX_STA_CSA | |
432 | IEEE80211_HW_SUPPORTS_CLONED_SKBS; | |
8ca151b5 | 433 | |
19e737c9 | 434 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 435 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
436 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
437 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
339b3086 ES |
438 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
439 | IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; | |
8ca151b5 | 440 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
848955cc JB |
441 | hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
442 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 JB |
443 | |
444 | /* | |
445 | * Enable 11w if advertised by firmware and software crypto | |
446 | * is not enabled (as the firmware will interpret some mgmt | |
447 | * packets, so enabling it with software crypto isn't safe) | |
448 | */ | |
449 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
450 | !iwlwifi_mod_params.sw_crypto) | |
451 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
452 | ||
1f940386 LC |
453 | hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS; |
454 | hw->wiphy->features |= | |
455 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
456 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; | |
fb98be5e | 457 | |
8ca151b5 JB |
458 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
459 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 460 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
461 | |
462 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
463 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
464 | BIT(NL80211_IFTYPE_AP) | | |
465 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
466 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
467 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 468 | |
a2f73b6c | 469 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
470 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
471 | if (iwl_mvm_is_lar_supported(mvm)) | |
472 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
473 | else | |
474 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
475 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 476 | |
3e56eadf JB |
477 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
478 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
479 | ||
94bbed72 | 480 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 481 | |
8ca151b5 JB |
482 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
483 | hw->wiphy->n_iface_combinations = | |
484 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
485 | ||
c451e6d4 | 486 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 487 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
488 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
489 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
490 | |
491 | /* Extract MAC address */ | |
492 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
493 | hw->wiphy->addresses = mvm->addresses; | |
494 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
495 | |
496 | /* Extract additional MAC addresses if available */ | |
497 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
498 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
499 | ||
500 | for (i = 1; i < num_mac; i++) { | |
501 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 502 | ETH_ALEN); |
831e85f3 | 503 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
504 | hw->wiphy->n_addresses++; |
505 | } | |
506 | ||
fe0f2de3 IP |
507 | iwl_mvm_reset_phy_ctxts(mvm); |
508 | ||
48849a41 | 509 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false); |
20f1a5de | 510 | |
8ca151b5 JB |
511 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
512 | ||
513 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
514 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
515 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
3d44eebf | 516 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { |
8ca151b5 JB |
517 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
518 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
519 | ||
c9faccc9 ES |
520 | if ((mvm->fw->ucode_capa.capa[0] & |
521 | IWL_UCODE_TLV_CAPA_BEAMFORMER) && | |
522 | (mvm->fw->ucode_capa.api[0] & | |
523 | IWL_UCODE_TLV_API_LQ_SS_PARAMS)) | |
3d44eebf ES |
524 | hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= |
525 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; | |
526 | } | |
527 | ||
8ca151b5 JB |
528 | hw->wiphy->hw_version = mvm->trans->hw_id; |
529 | ||
ade50652 | 530 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
531 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
532 | else | |
533 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
534 | ||
6efaaf33 EG |
535 | if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) { |
536 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; | |
537 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
538 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
539 | /* we create the 802.11 header and zero length SSID IE. */ | |
540 | hw->wiphy->max_sched_scan_ie_len = | |
541 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
542 | } | |
35a000b7 | 543 | |
8ca151b5 | 544 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 545 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 EP |
546 | NL80211_FEATURE_P2P_GO_OPPPS | |
547 | NL80211_FEATURE_DYNAMIC_SMPS | | |
9b5452fd EG |
548 | NL80211_FEATURE_STATIC_SMPS | |
549 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 550 | |
f1daa00e AO |
551 | if (mvm->fw->ucode_capa.capa[0] & |
552 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT) | |
553 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; | |
226bcd48 AK |
554 | if (mvm->fw->ucode_capa.capa[0] & |
555 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT) | |
556 | hw->wiphy->features |= NL80211_FEATURE_QUIET; | |
f1daa00e | 557 | |
73897bd1 AO |
558 | if (mvm->fw->ucode_capa.capa[0] & |
559 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT) | |
560 | hw->wiphy->features |= | |
561 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
562 | ||
563 | if (mvm->fw->ucode_capa.capa[0] & | |
564 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT) | |
565 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; | |
566 | ||
8ca151b5 JB |
567 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
568 | ||
e36e5433 | 569 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 570 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 571 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 572 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
573 | } |
574 | ||
8ca151b5 | 575 | #ifdef CONFIG_PM_SLEEP |
d15a747f EP |
576 | if (iwl_mvm_is_d0i3_supported(mvm) && |
577 | device_can_wakeup(mvm->trans->dev)) { | |
578 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
579 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
580 | } |
581 | ||
582 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
583 | mvm->trans->ops->d3_suspend && |
584 | mvm->trans->ops->d3_resume && | |
585 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
586 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
587 | WIPHY_WOWLAN_DISCONNECT | | |
588 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
589 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
590 | WIPHY_WOWLAN_NET_DETECT; | |
8ca151b5 | 591 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
592 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
593 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
594 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
595 | ||
596 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
597 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
598 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 599 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 JB |
600 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
601 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
602 | } |
603 | #endif | |
604 | ||
77736923 EP |
605 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
606 | /* assign default bcast filtering configuration */ | |
607 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
608 | #endif | |
609 | ||
8ca151b5 JB |
610 | ret = iwl_mvm_leds_init(mvm); |
611 | if (ret) | |
612 | return ret; | |
613 | ||
d8f1c515 AN |
614 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) { |
615 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); | |
616 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
617 | } | |
618 | ||
1d3c3f63 AN |
619 | if (mvm->fw->ucode_capa.capa[0] & |
620 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) { | |
621 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); | |
622 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
623 | } | |
624 | ||
b7327d89 EG |
625 | ret = ieee80211_register_hw(mvm->hw); |
626 | if (ret) | |
627 | iwl_mvm_leds_exit(mvm); | |
628 | ||
629 | return ret; | |
8ca151b5 JB |
630 | } |
631 | ||
b2492501 AN |
632 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
633 | struct ieee80211_sta *sta, | |
634 | struct sk_buff *skb) | |
635 | { | |
636 | struct iwl_mvm_sta *mvmsta; | |
637 | bool defer = false; | |
638 | ||
639 | /* | |
640 | * double check the IN_D0I3 flag both before and after | |
641 | * taking the spinlock, in order to prevent taking | |
642 | * the spinlock when not needed. | |
643 | */ | |
644 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
645 | return false; | |
646 | ||
647 | spin_lock(&mvm->d0i3_tx_lock); | |
648 | /* | |
649 | * testing the flag again ensures the skb dequeue | |
650 | * loop (on d0i3 exit) hasn't run yet. | |
651 | */ | |
652 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
653 | goto out; | |
654 | ||
655 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
656 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
657 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
658 | goto out; | |
659 | ||
660 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
661 | ieee80211_stop_queues(mvm->hw); | |
662 | ||
663 | /* trigger wakeup */ | |
664 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
665 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
666 | ||
667 | defer = true; | |
668 | out: | |
669 | spin_unlock(&mvm->d0i3_tx_lock); | |
670 | return defer; | |
671 | } | |
672 | ||
8ca151b5 JB |
673 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
674 | struct ieee80211_tx_control *control, | |
675 | struct sk_buff *skb) | |
676 | { | |
677 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
678 | struct ieee80211_sta *sta = control->sta; |
679 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
680 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 681 | |
9ee718aa EL |
682 | if (iwl_mvm_is_radio_killed(mvm)) { |
683 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
684 | goto drop; |
685 | } | |
686 | ||
398e8c6c | 687 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
688 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
689 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
690 | goto drop; |
691 | ||
3e56eadf JB |
692 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
693 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
694 | ieee80211_is_mgmt(hdr->frame_control) && | |
695 | !ieee80211_is_deauth(hdr->frame_control) && | |
696 | !ieee80211_is_disassoc(hdr->frame_control) && | |
697 | !ieee80211_is_action(hdr->frame_control))) | |
698 | sta = NULL; | |
699 | ||
700 | if (sta) { | |
b2492501 AN |
701 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
702 | return; | |
3e56eadf | 703 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
704 | goto drop; |
705 | return; | |
706 | } | |
707 | ||
708 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
709 | goto drop; | |
710 | return; | |
711 | drop: | |
712 | ieee80211_free_txskb(hw, skb); | |
713 | } | |
714 | ||
205e2210 EG |
715 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
716 | { | |
717 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
718 | return false; | |
719 | return true; | |
720 | } | |
721 | ||
722 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
723 | { | |
724 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
725 | return false; | |
726 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
727 | return true; | |
728 | ||
729 | /* enabled by default */ | |
730 | return true; | |
731 | } | |
732 | ||
8ca151b5 JB |
733 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
734 | struct ieee80211_vif *vif, | |
735 | enum ieee80211_ampdu_mlme_action action, | |
736 | struct ieee80211_sta *sta, u16 tid, | |
737 | u16 *ssn, u8 buf_size) | |
738 | { | |
739 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
740 | int ret; | |
b2492501 | 741 | bool tx_agg_ref = false; |
8ca151b5 JB |
742 | |
743 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
744 | sta->addr, tid, action); | |
745 | ||
746 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
747 | return -EACCES; | |
748 | ||
b2492501 | 749 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
750 | switch (action) { |
751 | case IEEE80211_AMPDU_TX_START: | |
752 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
753 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
754 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
755 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 756 | /* |
9256c205 EP |
757 | * for tx start, wait synchronously until D0i3 exit to |
758 | * get the correct sequence number for the tid. | |
759 | * additionally, some other ampdu actions use direct | |
760 | * target access, which is not handled automatically | |
761 | * by the trans layer (unlike commands), so wait for | |
762 | * d0i3 exit in these cases as well. | |
b2492501 | 763 | */ |
d40fc489 GG |
764 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
765 | if (ret) | |
766 | return ret; | |
767 | ||
768 | tx_agg_ref = true; | |
9256c205 EP |
769 | break; |
770 | default: | |
771 | break; | |
b2492501 AN |
772 | } |
773 | ||
8ca151b5 JB |
774 | mutex_lock(&mvm->mutex); |
775 | ||
776 | switch (action) { | |
777 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 778 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
779 | ret = -EINVAL; |
780 | break; | |
781 | } | |
782 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
783 | break; | |
784 | case IEEE80211_AMPDU_RX_STOP: | |
785 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
786 | break; | |
787 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 788 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
789 | ret = -EINVAL; |
790 | break; | |
791 | } | |
8ca151b5 JB |
792 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
793 | break; | |
794 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
795 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
796 | break; | |
8ca151b5 JB |
797 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
798 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 799 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
800 | break; |
801 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
802 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
803 | break; | |
804 | default: | |
805 | WARN_ON_ONCE(1); | |
806 | ret = -EINVAL; | |
807 | break; | |
808 | } | |
809 | mutex_unlock(&mvm->mutex); | |
810 | ||
b2492501 AN |
811 | /* |
812 | * If the tid is marked as started, we won't use it for offloaded | |
813 | * traffic on the next D0i3 entry. It's safe to unref. | |
814 | */ | |
815 | if (tx_agg_ref) | |
816 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
817 | ||
8ca151b5 JB |
818 | return ret; |
819 | } | |
820 | ||
821 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
822 | struct ieee80211_vif *vif) | |
823 | { | |
824 | struct iwl_mvm *mvm = data; | |
825 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
826 | ||
827 | mvmvif->uploaded = false; | |
828 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
829 | ||
8ca151b5 JB |
830 | spin_lock_bh(&mvm->time_event_lock); |
831 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
832 | spin_unlock_bh(&mvm->time_event_lock); | |
833 | ||
fe0f2de3 | 834 | mvmvif->phy_ctxt = NULL; |
8a275bad | 835 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
836 | } |
837 | ||
aadede6e JB |
838 | static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count, |
839 | const void *data, size_t datalen) | |
840 | { | |
841 | const struct iwl_mvm_dump_ptrs *dump_ptrs = data; | |
842 | ssize_t bytes_read; | |
843 | ssize_t bytes_read_trans; | |
844 | ||
845 | if (offset < dump_ptrs->op_mode_len) { | |
846 | bytes_read = min_t(ssize_t, count, | |
847 | dump_ptrs->op_mode_len - offset); | |
848 | memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset, | |
849 | bytes_read); | |
850 | offset += bytes_read; | |
851 | count -= bytes_read; | |
852 | ||
853 | if (count == 0) | |
854 | return bytes_read; | |
855 | } else { | |
856 | bytes_read = 0; | |
857 | } | |
858 | ||
859 | if (!dump_ptrs->trans_ptr) | |
860 | return bytes_read; | |
861 | ||
862 | offset -= dump_ptrs->op_mode_len; | |
863 | bytes_read_trans = min_t(ssize_t, count, | |
864 | dump_ptrs->trans_ptr->len - offset); | |
865 | memcpy(buffer + bytes_read, | |
866 | (u8 *)dump_ptrs->trans_ptr->data + offset, | |
867 | bytes_read_trans); | |
868 | ||
869 | return bytes_read + bytes_read_trans; | |
870 | } | |
871 | ||
872 | static void iwl_mvm_free_coredump(const void *data) | |
873 | { | |
874 | const struct iwl_mvm_dump_ptrs *fw_error_dump = data; | |
875 | ||
876 | vfree(fw_error_dump->op_mode_ptr); | |
877 | vfree(fw_error_dump->trans_ptr); | |
878 | kfree(fw_error_dump); | |
879 | } | |
880 | ||
04fd2c28 LK |
881 | static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm, |
882 | struct iwl_fw_error_dump_data **dump_data) | |
883 | { | |
884 | struct iwl_fw_error_dump_fifo *fifo_hdr; | |
885 | u32 *fifo_data; | |
886 | u32 fifo_len; | |
887 | unsigned long flags; | |
888 | int i, j; | |
889 | ||
890 | if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags)) | |
891 | return; | |
892 | ||
893 | /* Pull RXF data from all RXFs */ | |
894 | for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) { | |
895 | /* | |
896 | * Keep aside the additional offset that might be needed for | |
897 | * next RXF | |
898 | */ | |
899 | u32 offset_diff = RXF_DIFF_FROM_PREV * i; | |
900 | ||
901 | fifo_hdr = (void *)(*dump_data)->data; | |
902 | fifo_data = (void *)fifo_hdr->data; | |
903 | fifo_len = mvm->shared_mem_cfg.rxfifo_size[i]; | |
904 | ||
905 | /* No need to try to read the data if the length is 0 */ | |
906 | if (fifo_len == 0) | |
907 | continue; | |
908 | ||
909 | /* Add a TLV for the RXF */ | |
910 | (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF); | |
911 | (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); | |
912 | ||
913 | fifo_hdr->fifo_num = cpu_to_le32(i); | |
914 | fifo_hdr->available_bytes = | |
915 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
916 | RXF_RD_D_SPACE + | |
917 | offset_diff)); | |
918 | fifo_hdr->wr_ptr = | |
919 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
920 | RXF_RD_WR_PTR + | |
921 | offset_diff)); | |
922 | fifo_hdr->rd_ptr = | |
923 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
924 | RXF_RD_RD_PTR + | |
925 | offset_diff)); | |
926 | fifo_hdr->fence_ptr = | |
927 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
928 | RXF_RD_FENCE_PTR + | |
929 | offset_diff)); | |
930 | fifo_hdr->fence_mode = | |
931 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
932 | RXF_SET_FENCE_MODE + | |
933 | offset_diff)); | |
934 | ||
935 | /* Lock fence */ | |
936 | iwl_trans_write_prph(mvm->trans, | |
937 | RXF_SET_FENCE_MODE + offset_diff, 0x1); | |
938 | /* Set fence pointer to the same place like WR pointer */ | |
939 | iwl_trans_write_prph(mvm->trans, | |
940 | RXF_LD_WR2FENCE + offset_diff, 0x1); | |
941 | /* Set fence offset */ | |
942 | iwl_trans_write_prph(mvm->trans, | |
943 | RXF_LD_FENCE_OFFSET_ADDR + offset_diff, | |
944 | 0x0); | |
945 | ||
946 | /* Read FIFO */ | |
947 | fifo_len /= sizeof(u32); /* Size in DWORDS */ | |
948 | for (j = 0; j < fifo_len; j++) | |
949 | fifo_data[j] = iwl_trans_read_prph(mvm->trans, | |
950 | RXF_FIFO_RD_FENCE_INC + | |
951 | offset_diff); | |
952 | *dump_data = iwl_fw_error_next_data(*dump_data); | |
953 | } | |
954 | ||
955 | /* Pull TXF data from all TXFs */ | |
956 | for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) { | |
957 | /* Mark the number of TXF we're pulling now */ | |
958 | iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i); | |
959 | ||
960 | fifo_hdr = (void *)(*dump_data)->data; | |
961 | fifo_data = (void *)fifo_hdr->data; | |
962 | fifo_len = mvm->shared_mem_cfg.txfifo_size[i]; | |
963 | ||
964 | /* No need to try to read the data if the length is 0 */ | |
965 | if (fifo_len == 0) | |
966 | continue; | |
967 | ||
968 | /* Add a TLV for the FIFO */ | |
969 | (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF); | |
970 | (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); | |
971 | ||
972 | fifo_hdr->fifo_num = cpu_to_le32(i); | |
973 | fifo_hdr->available_bytes = | |
974 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
975 | TXF_FIFO_ITEM_CNT)); | |
976 | fifo_hdr->wr_ptr = | |
977 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
978 | TXF_WR_PTR)); | |
979 | fifo_hdr->rd_ptr = | |
980 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
981 | TXF_RD_PTR)); | |
982 | fifo_hdr->fence_ptr = | |
983 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
984 | TXF_FENCE_PTR)); | |
985 | fifo_hdr->fence_mode = | |
986 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
987 | TXF_LOCK_FENCE)); | |
988 | ||
989 | /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */ | |
990 | iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR, | |
991 | TXF_WR_PTR); | |
992 | ||
993 | /* Dummy-read to advance the read pointer to the head */ | |
994 | iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA); | |
995 | ||
996 | /* Read FIFO */ | |
997 | fifo_len /= sizeof(u32); /* Size in DWORDS */ | |
998 | for (j = 0; j < fifo_len; j++) | |
999 | fifo_data[j] = iwl_trans_read_prph(mvm->trans, | |
1000 | TXF_READ_MODIFY_DATA); | |
1001 | *dump_data = iwl_fw_error_next_data(*dump_data); | |
1002 | } | |
1003 | ||
1004 | iwl_trans_release_nic_access(mvm->trans, &flags); | |
1005 | } | |
1006 | ||
b6eaa45a EG |
1007 | void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm) |
1008 | { | |
1009 | if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert || | |
1010 | !mvm->fw_dump_desc) | |
1011 | return; | |
1012 | ||
1013 | kfree(mvm->fw_dump_desc); | |
1014 | mvm->fw_dump_desc = NULL; | |
1015 | } | |
1016 | ||
e539761d LK |
1017 | #define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */ |
1018 | #define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */ | |
1019 | ||
4bfa47f3 | 1020 | void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) |
655e6d6d EG |
1021 | { |
1022 | struct iwl_fw_error_dump_file *dump_file; | |
1023 | struct iwl_fw_error_dump_data *dump_data; | |
1024 | struct iwl_fw_error_dump_info *dump_info; | |
a549b296 | 1025 | struct iwl_fw_error_dump_mem *dump_mem; |
b6eaa45a | 1026 | struct iwl_fw_error_dump_trigger_desc *dump_trig; |
48eb7b34 | 1027 | struct iwl_mvm_dump_ptrs *fw_error_dump; |
655e6d6d | 1028 | u32 sram_len, sram_ofs; |
04fd2c28 | 1029 | u32 file_len, fifo_data_len = 0; |
addfaada | 1030 | u32 smem_len = mvm->cfg->smem_len; |
86138324 | 1031 | u32 sram2_len = mvm->cfg->dccm2_len; |
655e6d6d EG |
1032 | |
1033 | lockdep_assert_held(&mvm->mutex); | |
1034 | ||
aadede6e | 1035 | fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL); |
48eb7b34 EG |
1036 | if (!fw_error_dump) |
1037 | return; | |
1038 | ||
f53bf4c7 LK |
1039 | /* SRAM - include stack CCM if driver knows the values for it */ |
1040 | if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) { | |
1041 | const struct fw_img *img; | |
1042 | ||
1043 | img = &mvm->fw->img[mvm->cur_ucode]; | |
1044 | sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
1045 | sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
1046 | } else { | |
1047 | sram_ofs = mvm->cfg->dccm_offset; | |
1048 | sram_len = mvm->cfg->dccm_len; | |
1049 | } | |
655e6d6d | 1050 | |
04fd2c28 LK |
1051 | /* reading RXF/TXF sizes */ |
1052 | if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) { | |
1053 | struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg; | |
1054 | int i; | |
1055 | ||
1056 | fifo_data_len = 0; | |
1057 | ||
1058 | /* Count RXF size */ | |
1059 | for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) { | |
1060 | if (!mem_cfg->rxfifo_size[i]) | |
1061 | continue; | |
1062 | ||
1063 | /* Add header info */ | |
1064 | fifo_data_len += mem_cfg->rxfifo_size[i] + | |
1065 | sizeof(*dump_data) + | |
1066 | sizeof(struct iwl_fw_error_dump_fifo); | |
1067 | } | |
1068 | ||
1069 | for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) { | |
1070 | if (!mem_cfg->txfifo_size[i]) | |
1071 | continue; | |
655e6d6d | 1072 | |
04fd2c28 LK |
1073 | /* Add header info */ |
1074 | fifo_data_len += mem_cfg->txfifo_size[i] + | |
1075 | sizeof(*dump_data) + | |
1076 | sizeof(struct iwl_fw_error_dump_fifo); | |
1077 | } | |
1078 | } | |
655e6d6d EG |
1079 | |
1080 | file_len = sizeof(*dump_file) + | |
04fd2c28 | 1081 | sizeof(*dump_data) * 2 + |
a549b296 | 1082 | sram_len + sizeof(*dump_mem) + |
04fd2c28 | 1083 | fifo_data_len + |
655e6d6d EG |
1084 | sizeof(*dump_info); |
1085 | ||
e539761d LK |
1086 | /* |
1087 | * In 8000 HW family B-step include the ICCM (which resides separately) | |
1088 | */ | |
1089 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && | |
1090 | CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) | |
1091 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + | |
1092 | IWL8260_ICCM_LEN; | |
1093 | ||
b6eaa45a EG |
1094 | if (mvm->fw_dump_desc) |
1095 | file_len += sizeof(*dump_data) + sizeof(*dump_trig) + | |
1096 | mvm->fw_dump_desc->len; | |
1097 | ||
addfaada LK |
1098 | /* Make room for the SMEM, if it exists */ |
1099 | if (smem_len) | |
a549b296 | 1100 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len; |
addfaada | 1101 | |
86138324 IY |
1102 | /* Make room for the secondary SRAM, if it exists */ |
1103 | if (sram2_len) | |
1104 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len; | |
1105 | ||
5bfe6f53 | 1106 | dump_file = vzalloc(file_len); |
48eb7b34 EG |
1107 | if (!dump_file) { |
1108 | kfree(fw_error_dump); | |
b6eaa45a | 1109 | iwl_mvm_free_fw_dump_desc(mvm); |
655e6d6d | 1110 | return; |
48eb7b34 | 1111 | } |
655e6d6d | 1112 | |
48eb7b34 | 1113 | fw_error_dump->op_mode_ptr = dump_file; |
655e6d6d EG |
1114 | |
1115 | dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER); | |
655e6d6d EG |
1116 | dump_data = (void *)dump_file->data; |
1117 | ||
1118 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO); | |
1119 | dump_data->len = cpu_to_le32(sizeof(*dump_info)); | |
1120 | dump_info = (void *) dump_data->data; | |
1121 | dump_info->device_family = | |
1122 | mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ? | |
1123 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) : | |
1124 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8); | |
435da2ce | 1125 | dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev)); |
655e6d6d EG |
1126 | memcpy(dump_info->fw_human_readable, mvm->fw->human_readable, |
1127 | sizeof(dump_info->fw_human_readable)); | |
1128 | strncpy(dump_info->dev_human_readable, mvm->cfg->name, | |
1129 | sizeof(dump_info->dev_human_readable)); | |
1130 | strncpy(dump_info->bus_human_readable, mvm->dev->bus->name, | |
1131 | sizeof(dump_info->bus_human_readable)); | |
1132 | ||
1133 | dump_data = iwl_fw_error_next_data(dump_data); | |
04fd2c28 LK |
1134 | /* We only dump the FIFOs if the FW is in error state */ |
1135 | if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) | |
1136 | iwl_mvm_dump_fifos(mvm, &dump_data); | |
655e6d6d | 1137 | |
b6eaa45a EG |
1138 | if (mvm->fw_dump_desc) { |
1139 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO); | |
1140 | dump_data->len = cpu_to_le32(sizeof(*dump_trig) + | |
1141 | mvm->fw_dump_desc->len); | |
1142 | dump_trig = (void *)dump_data->data; | |
1143 | memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc, | |
1144 | sizeof(*dump_trig) + mvm->fw_dump_desc->len); | |
1145 | ||
1146 | /* now we can free this copy */ | |
1147 | iwl_mvm_free_fw_dump_desc(mvm); | |
1148 | dump_data = iwl_fw_error_next_data(dump_data); | |
1149 | } | |
1150 | ||
a549b296 EG |
1151 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); |
1152 | dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem)); | |
1153 | dump_mem = (void *)dump_data->data; | |
1154 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1155 | dump_mem->offset = cpu_to_le32(sram_ofs); | |
1156 | iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data, | |
655e6d6d EG |
1157 | sram_len); |
1158 | ||
addfaada LK |
1159 | if (smem_len) { |
1160 | dump_data = iwl_fw_error_next_data(dump_data); | |
e06d8437 EG |
1161 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); |
1162 | dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem)); | |
1163 | dump_mem = (void *)dump_data->data; | |
1164 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM); | |
1165 | dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset); | |
addfaada | 1166 | iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset, |
e06d8437 | 1167 | dump_mem->data, smem_len); |
addfaada LK |
1168 | } |
1169 | ||
86138324 IY |
1170 | if (sram2_len) { |
1171 | dump_data = iwl_fw_error_next_data(dump_data); | |
1172 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); | |
1173 | dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem)); | |
1174 | dump_mem = (void *)dump_data->data; | |
1175 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1176 | dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset); | |
1177 | iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset, | |
1178 | dump_mem->data, sram2_len); | |
1179 | } | |
1180 | ||
e539761d LK |
1181 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && |
1182 | CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) { | |
1183 | dump_data = iwl_fw_error_next_data(dump_data); | |
1184 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); | |
1185 | dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN + | |
1186 | sizeof(*dump_mem)); | |
1187 | dump_mem = (void *)dump_data->data; | |
1188 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1189 | dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET); | |
1190 | iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET, | |
1191 | dump_mem->data, IWL8260_ICCM_LEN); | |
1192 | } | |
1193 | ||
48eb7b34 EG |
1194 | fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans); |
1195 | fw_error_dump->op_mode_len = file_len; | |
1196 | if (fw_error_dump->trans_ptr) | |
1197 | file_len += fw_error_dump->trans_ptr->len; | |
1198 | dump_file->file_len = cpu_to_le32(file_len); | |
4bfa47f3 | 1199 | |
aadede6e JB |
1200 | dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0, |
1201 | GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump); | |
d2709ad7 EG |
1202 | |
1203 | clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status); | |
655e6d6d | 1204 | } |
655e6d6d | 1205 | |
b6eaa45a EG |
1206 | struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = { |
1207 | .trig_desc = { | |
1208 | .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT), | |
1209 | }, | |
1210 | }; | |
1211 | ||
8ca151b5 JB |
1212 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) |
1213 | { | |
58629d9d JB |
1214 | /* clear the D3 reconfig, we only need it to avoid dumping a |
1215 | * firmware coredump on reconfiguration, we shouldn't do that | |
1216 | * on D3->D0 transition | |
1217 | */ | |
b6eaa45a EG |
1218 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
1219 | mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; | |
58629d9d | 1220 | iwl_mvm_fw_error_dump(mvm); |
b6eaa45a | 1221 | } |
1bd3cbc1 | 1222 | |
744cb695 EP |
1223 | /* cleanup all stale references (scan, roc), but keep the |
1224 | * ucode_down ref until reconfig is complete | |
1225 | */ | |
1226 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1227 | ||
8ca151b5 | 1228 | iwl_trans_stop_device(mvm->trans); |
8ca151b5 | 1229 | |
9af91f46 | 1230 | mvm->scan_status = 0; |
b1873300 | 1231 | mvm->ps_disabled = false; |
31b8b343 | 1232 | mvm->calibrating = false; |
8ca151b5 JB |
1233 | |
1234 | /* just in case one was running */ | |
1235 | ieee80211_remain_on_channel_expired(mvm->hw); | |
1236 | ||
1237 | ieee80211_iterate_active_interfaces_atomic( | |
1238 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
1239 | iwl_mvm_cleanup_iterator, mvm); | |
1240 | ||
fe0f2de3 | 1241 | mvm->p2p_device_vif = NULL; |
37577fe2 | 1242 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
1243 | |
1244 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
1245 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
1246 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
a0f6bf2a | 1247 | memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
8a275bad EG |
1248 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
1249 | memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); | |
1250 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); | |
1251 | memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); | |
1252 | memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); | |
1253 | memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); | |
8ca151b5 JB |
1254 | |
1255 | ieee80211_wake_queues(mvm->hw); | |
1256 | ||
228670b2 EP |
1257 | /* clear any stale d0i3 state */ |
1258 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1259 | ||
8ca151b5 | 1260 | mvm->vif_count = 0; |
113a0447 | 1261 | mvm->rx_ba_sessions = 0; |
d2709ad7 | 1262 | mvm->fw_dbg_conf = FW_DBG_INVALID; |
91a8bcde JB |
1263 | |
1264 | /* keep statistics ticking */ | |
1265 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1266 | } |
1267 | ||
a0a09243 | 1268 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1269 | { |
8ca151b5 JB |
1270 | int ret; |
1271 | ||
a0a09243 | 1272 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 JB |
1273 | |
1274 | /* Clean up some internal and mac80211 state on restart */ | |
1275 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1276 | iwl_mvm_restart_cleanup(mvm); | |
1277 | ||
1278 | ret = iwl_mvm_up(mvm); | |
c47af22a JB |
1279 | |
1280 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1281 | /* Something went wrong - we need to finish some cleanup | |
1282 | * that normally iwl_mvm_mac_restart_complete() below | |
1283 | * would do. | |
1284 | */ | |
1285 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1286 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1287 | } | |
1288 | ||
a0a09243 LC |
1289 | return ret; |
1290 | } | |
1291 | ||
1292 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1293 | { | |
1294 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1295 | int ret; | |
1296 | ||
37948fcf EP |
1297 | /* Some hw restart cleanups must not hold the mutex */ |
1298 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1299 | /* | |
1300 | * Make sure we are out of d0i3. This is needed | |
1301 | * to make sure the reference accounting is correct | |
1302 | * (and there is no stale d0i3_exit_work). | |
1303 | */ | |
1304 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1305 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1306 | &mvm->status), | |
1307 | HZ); | |
1308 | } | |
1309 | ||
a0a09243 LC |
1310 | mutex_lock(&mvm->mutex); |
1311 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1312 | mutex_unlock(&mvm->mutex); |
1313 | ||
1314 | return ret; | |
1315 | } | |
1316 | ||
cf2c92d8 | 1317 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1318 | { |
8ca151b5 JB |
1319 | int ret; |
1320 | ||
1321 | mutex_lock(&mvm->mutex); | |
1322 | ||
1323 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1324 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
e7afe89f | 1325 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1326 | if (ret) |
1327 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1328 | ret); | |
1329 | ||
7498cf4c EP |
1330 | /* allow transport/FW low power modes */ |
1331 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1332 | ||
cbd2ae2d AN |
1333 | /* |
1334 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1335 | * of packets the FW sent out, so we must reconnect. | |
1336 | */ | |
1337 | iwl_mvm_teardown_tdls_peers(mvm); | |
1338 | ||
8ca151b5 JB |
1339 | mutex_unlock(&mvm->mutex); |
1340 | } | |
1341 | ||
088070a2 EP |
1342 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1343 | { | |
1344 | bool exit_now; | |
1345 | ||
1346 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
1347 | return; | |
1348 | ||
1349 | mutex_lock(&mvm->d0i3_suspend_mutex); | |
1350 | __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
1351 | exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP, | |
1352 | &mvm->d0i3_suspend_flags); | |
1353 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1354 | ||
1355 | if (exit_now) { | |
1356 | IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n"); | |
1357 | _iwl_mvm_exit_d0i3(mvm); | |
1358 | } | |
6735943f EP |
1359 | |
1360 | if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) | |
1361 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1362 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1363 | &mvm->status), | |
1364 | HZ)) | |
1365 | WARN_ONCE(1, "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1366 | } |
1367 | ||
cf2c92d8 EP |
1368 | static void |
1369 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1370 | enum ieee80211_reconfig_type reconfig_type) | |
1371 | { | |
1372 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1373 | ||
1374 | switch (reconfig_type) { | |
1375 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1376 | iwl_mvm_restart_complete(mvm); | |
1377 | break; | |
1378 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1379 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1380 | break; |
1381 | } | |
1382 | } | |
1383 | ||
a0a09243 | 1384 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1385 | { |
a0a09243 | 1386 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1387 | |
91a8bcde JB |
1388 | /* firmware counters are obviously reset now, but we shouldn't |
1389 | * partially track so also clear the fw_reset_accu counters. | |
1390 | */ | |
1391 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1392 | ||
0a79a0c0 EP |
1393 | /* |
1394 | * Disallow low power states when the FW is down by taking | |
1395 | * the UCODE_DOWN ref. in case of ongoing hw restart the | |
1396 | * ref is already taken, so don't take it again. | |
1397 | */ | |
1398 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1399 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
7498cf4c | 1400 | |
8ca151b5 JB |
1401 | /* async_handlers_wk is now blocked */ |
1402 | ||
1403 | /* | |
1404 | * The work item could be running or queued if the | |
1405 | * ROC time event stops just as we get here. | |
1406 | */ | |
1407 | cancel_work_sync(&mvm->roc_done_wk); | |
1408 | ||
1409 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
1410 | |
1411 | iwl_mvm_async_handlers_purge(mvm); | |
1412 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1413 | ||
1414 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1415 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1416 | |
0a79a0c0 EP |
1417 | /* |
1418 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1419 | * won't be called in this case). | |
1420 | */ | |
1421 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1422 | ||
963221be AB |
1423 | /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
1424 | * make sure there's nothing left there and warn if any is found. | |
1425 | */ | |
1426 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) { | |
1427 | int i; | |
1428 | ||
1429 | for (i = 0; i < IWL_MVM_MAX_SIMULTANEOUS_SCANS; i++) { | |
1430 | if (WARN_ONCE(mvm->scan_uid[i], | |
1431 | "UMAC scan UID %d was not cleaned\n", | |
1432 | mvm->scan_uid[i])) | |
1433 | mvm->scan_uid[i] = 0; | |
1434 | } | |
1435 | } | |
1436 | ||
bc44886d | 1437 | mvm->ucode_loaded = false; |
a0a09243 | 1438 | } |
bc44886d | 1439 | |
a0a09243 LC |
1440 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1441 | { | |
1442 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1443 | ||
1444 | flush_work(&mvm->d0i3_exit_work); | |
1445 | flush_work(&mvm->async_handlers_wk); | |
d2709ad7 | 1446 | cancel_delayed_work_sync(&mvm->fw_dump_wk); |
b6eaa45a | 1447 | iwl_mvm_free_fw_dump_desc(mvm); |
a0a09243 LC |
1448 | |
1449 | mutex_lock(&mvm->mutex); | |
1450 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1451 | mutex_unlock(&mvm->mutex); |
1452 | ||
1453 | /* | |
1454 | * The worker might have been waiting for the mutex, let it run and | |
1455 | * discover that its list is now empty. | |
1456 | */ | |
1457 | cancel_work_sync(&mvm->async_handlers_wk); | |
1458 | } | |
1459 | ||
fe0f2de3 IP |
1460 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1461 | { | |
1462 | u16 i; | |
1463 | ||
1464 | lockdep_assert_held(&mvm->mutex); | |
1465 | ||
1466 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1467 | if (!mvm->phy_ctxts[i].ref) | |
1468 | return &mvm->phy_ctxts[i]; | |
1469 | ||
1470 | IWL_ERR(mvm, "No available PHY context\n"); | |
1471 | return NULL; | |
1472 | } | |
1473 | ||
d44c3fe6 AA |
1474 | static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm, |
1475 | struct ieee80211_vif *vif, s8 tx_power) | |
ee9c6cb0 EG |
1476 | { |
1477 | /* FW is in charge of regulatory enforcement */ | |
1478 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
1479 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
1480 | .pwr_restriction = cpu_to_le16(tx_power), | |
1481 | }; | |
1482 | ||
a1022927 | 1483 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, |
ee9c6cb0 EG |
1484 | sizeof(reduce_txpwr_cmd), |
1485 | &reduce_txpwr_cmd); | |
1486 | } | |
1487 | ||
d44c3fe6 AA |
1488 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1489 | s16 tx_power) | |
1490 | { | |
1491 | struct iwl_dev_tx_power_cmd cmd = { | |
1492 | .set_mode = 0, | |
1493 | .mac_context_id = | |
1494 | cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), | |
1495 | .pwr_restriction = cpu_to_le16(8 * tx_power), | |
1496 | }; | |
1497 | ||
1498 | if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_TX_POWER_DEV)) | |
1499 | return iwl_mvm_set_tx_power_old(mvm, vif, tx_power); | |
1500 | ||
1501 | if (tx_power == IWL_DEFAULT_MAX_TX_POWER) | |
1502 | cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); | |
1503 | ||
1504 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, | |
1505 | sizeof(cmd), &cmd); | |
1506 | } | |
1507 | ||
8ca151b5 JB |
1508 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1509 | struct ieee80211_vif *vif) | |
1510 | { | |
1511 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1512 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1513 | int ret; | |
1514 | ||
aa5e1832 EG |
1515 | mvmvif->mvm = mvm; |
1516 | ||
d40fc489 GG |
1517 | /* |
1518 | * make sure D0i3 exit is completed, otherwise a target access | |
1519 | * during tx queue configuration could be done when still in | |
1520 | * D0i3 state. | |
1521 | */ | |
1522 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1523 | if (ret) | |
1524 | return ret; | |
1525 | ||
8ca151b5 JB |
1526 | /* |
1527 | * Not much to do here. The stack will not allow interface | |
1528 | * types or combinations that we didn't advertise, so we | |
1529 | * don't really have to check the types. | |
1530 | */ | |
1531 | ||
1532 | mutex_lock(&mvm->mutex); | |
1533 | ||
33cef925 JB |
1534 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1535 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1536 | mvmvif->beacon_stats.accu_num_beacons += | |
1537 | mvmvif->beacon_stats.num_beacons; | |
1538 | ||
e89044d7 | 1539 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1540 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1541 | if (ret) | |
1542 | goto out_unlock; | |
1543 | ||
1c2abf72 | 1544 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1545 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1546 | mvm->vif_count++; | |
ea183d02 | 1547 | |
8ca151b5 JB |
1548 | /* |
1549 | * The AP binding flow can be done only after the beacon | |
1550 | * template is configured (which happens only in the mac80211 | |
1551 | * start_ap() flow), and adding the broadcast station can happen | |
1552 | * only after the binding. | |
1553 | * In addition, since modifying the MAC before adding a bcast | |
1554 | * station is not allowed by the FW, delay the adding of MAC context to | |
1555 | * the point where we can also add the bcast station. | |
1556 | * In short: there's not much we can do at this point, other than | |
1557 | * allocating resources :) | |
1558 | */ | |
5023d966 JB |
1559 | if (vif->type == NL80211_IFTYPE_AP || |
1560 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1561 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1562 | if (ret) { |
1563 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1564 | goto out_release; | |
1565 | } | |
1566 | ||
77740cb4 | 1567 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1568 | goto out_unlock; |
1569 | } | |
1570 | ||
8ca151b5 JB |
1571 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1572 | if (ret) | |
1573 | goto out_release; | |
1574 | ||
999609f1 | 1575 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1576 | if (ret) |
fd66fc1c | 1577 | goto out_remove_mac; |
8ca151b5 | 1578 | |
7df15b1e | 1579 | /* beacon filtering */ |
a1022927 | 1580 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1581 | if (ret) |
1582 | goto out_remove_mac; | |
1583 | ||
7df15b1e | 1584 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1585 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1586 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1587 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1588 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1589 | } |
1590 | ||
8ca151b5 JB |
1591 | /* |
1592 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1593 | * so a dedicated PHY context is allocated to it and the corresponding | |
1594 | * MAC context is bound to it at this stage. | |
1595 | */ | |
1596 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1597 | |
fe0f2de3 IP |
1598 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1599 | if (!mvmvif->phy_ctxt) { | |
1600 | ret = -ENOSPC; | |
bd3351ba | 1601 | goto out_free_bf; |
fe0f2de3 | 1602 | } |
8ca151b5 | 1603 | |
53a9d61e | 1604 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1605 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1606 | if (ret) | |
53a9d61e | 1607 | goto out_unref_phy; |
8ca151b5 | 1608 | |
013290aa | 1609 | ret = iwl_mvm_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
1610 | if (ret) |
1611 | goto out_unbind; | |
1612 | ||
1613 | /* Save a pointer to p2p device vif, so it can later be used to | |
1614 | * update the p2p device MAC when a GO is started/stopped */ | |
1615 | mvm->p2p_device_vif = vif; | |
1616 | } | |
1617 | ||
63494374 | 1618 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1619 | goto out_unlock; |
1620 | ||
1621 | out_unbind: | |
1622 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1623 | out_unref_phy: |
fe0f2de3 | 1624 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1625 | out_free_bf: |
1626 | if (mvm->bf_allowed_vif == mvmvif) { | |
1627 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1628 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1629 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1630 | } |
8ca151b5 JB |
1631 | out_remove_mac: |
1632 | mvmvif->phy_ctxt = NULL; | |
1633 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1634 | out_release: | |
5ee2b215 AB |
1635 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1636 | mvm->vif_count--; | |
1c2abf72 | 1637 | |
8ca151b5 JB |
1638 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1639 | out_unlock: | |
1640 | mutex_unlock(&mvm->mutex); | |
1641 | ||
d40fc489 GG |
1642 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1643 | ||
8ca151b5 JB |
1644 | return ret; |
1645 | } | |
1646 | ||
38a12b5b JB |
1647 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1648 | struct ieee80211_vif *vif) | |
8ca151b5 | 1649 | { |
d92b732e | 1650 | u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
8ca151b5 JB |
1651 | |
1652 | if (tfd_msk) { | |
fe92e32a EG |
1653 | /* |
1654 | * mac80211 first removes all the stations of the vif and | |
1655 | * then removes the vif. When it removes a station it also | |
1656 | * flushes the AMPDU session. So by now, all the AMPDU sessions | |
1657 | * of all the stations of this vif are closed, and the queues | |
1658 | * of these AMPDU sessions are properly closed. | |
1659 | * We still need to take care of the shared queues of the vif. | |
1660 | * Flush them here. | |
1661 | */ | |
8ca151b5 JB |
1662 | mutex_lock(&mvm->mutex); |
1663 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
1664 | mutex_unlock(&mvm->mutex); | |
fe92e32a EG |
1665 | |
1666 | /* | |
1667 | * There are transports that buffer a few frames in the host. | |
1668 | * For these, the flush above isn't enough since while we were | |
1669 | * flushing, the transport might have sent more frames to the | |
1670 | * device. To solve this, wait here until the transport is | |
1671 | * empty. Technically, this could have replaced the flush | |
1672 | * above, but flush is much faster than draining. So flush | |
1673 | * first, and drain to make sure we have no frames in the | |
1674 | * transport anymore. | |
1675 | * If a station still had frames on the shared queues, it is | |
1676 | * already marked as draining, so to complete the draining, we | |
1677 | * just need to wait until the transport is empty. | |
1678 | */ | |
1679 | iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); | |
8ca151b5 JB |
1680 | } |
1681 | ||
1682 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1683 | /* | |
1684 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1685 | * We assume here that all the packets sent to the OFFCHANNEL | |
1686 | * queue are sent in ROC session. | |
1687 | */ | |
1688 | flush_work(&mvm->roc_done_wk); | |
1689 | } else { | |
1690 | /* | |
1691 | * By now, all the AC queues are empty. The AGG queues are | |
1692 | * empty too. We already got all the Tx responses for all the | |
1693 | * packets in the queues. The drain work can have been | |
0742a75a | 1694 | * triggered. Flush it. |
8ca151b5 JB |
1695 | */ |
1696 | flush_work(&mvm->sta_drained_wk); | |
1697 | } | |
38a12b5b JB |
1698 | } |
1699 | ||
1700 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1701 | struct ieee80211_vif *vif) | |
1702 | { | |
1703 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1704 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1705 | ||
1706 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1707 | |
1708 | mutex_lock(&mvm->mutex); | |
1709 | ||
7df15b1e HG |
1710 | if (mvm->bf_allowed_vif == mvmvif) { |
1711 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1712 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1713 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1714 | } |
1715 | ||
63494374 JB |
1716 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1717 | ||
8ca151b5 JB |
1718 | /* |
1719 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1720 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1721 | */ |
5023d966 JB |
1722 | if (vif->type == NL80211_IFTYPE_AP || |
1723 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1724 | #ifdef CONFIG_NL80211_TESTMODE |
1725 | if (vif == mvm->noa_vif) { | |
1726 | mvm->noa_vif = NULL; | |
1727 | mvm->noa_duration = 0; | |
1728 | } | |
1729 | #endif | |
013290aa | 1730 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1731 | goto out_release; |
1732 | } | |
1733 | ||
1734 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1735 | mvm->p2p_device_vif = NULL; | |
013290aa | 1736 | iwl_mvm_rm_bcast_sta(mvm, vif); |
8ca151b5 | 1737 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1738 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1739 | mvmvif->phy_ctxt = NULL; |
1740 | } | |
1741 | ||
5ee2b215 | 1742 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1743 | mvm->vif_count--; |
1c2abf72 | 1744 | |
999609f1 | 1745 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1746 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1747 | ||
1748 | out_release: | |
1749 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1750 | mutex_unlock(&mvm->mutex); | |
1751 | } | |
1752 | ||
1753 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1754 | { |
8ca151b5 JB |
1755 | return 0; |
1756 | } | |
1757 | ||
e59647ea EP |
1758 | struct iwl_mvm_mc_iter_data { |
1759 | struct iwl_mvm *mvm; | |
1760 | int port_id; | |
1761 | }; | |
1762 | ||
1763 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1764 | struct ieee80211_vif *vif) | |
1765 | { | |
1766 | struct iwl_mvm_mc_iter_data *data = _data; | |
1767 | struct iwl_mvm *mvm = data->mvm; | |
1768 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1769 | int ret, len; | |
1770 | ||
1771 | /* if we don't have free ports, mcast frames will be dropped */ | |
1772 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1773 | return; | |
1774 | ||
1775 | if (vif->type != NL80211_IFTYPE_STATION || | |
1776 | !vif->bss_conf.assoc) | |
1777 | return; | |
1778 | ||
1779 | cmd->port_id = data->port_id++; | |
1780 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1781 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1782 | ||
1c4abec0 | 1783 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1784 | if (ret) |
1785 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1786 | } | |
1787 | ||
1788 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1789 | { | |
1790 | struct iwl_mvm_mc_iter_data iter_data = { | |
1791 | .mvm = mvm, | |
88f2fd73 MG |
1792 | }; |
1793 | ||
e59647ea EP |
1794 | lockdep_assert_held(&mvm->mutex); |
1795 | ||
1796 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1797 | return; | |
1798 | ||
1c4abec0 | 1799 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1800 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1801 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1802 | } |
1803 | ||
e59647ea EP |
1804 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1805 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1806 | { |
e59647ea EP |
1807 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1808 | struct iwl_mcast_filter_cmd *cmd; | |
1809 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1810 | int addr_count; |
1811 | bool pass_all; | |
e59647ea EP |
1812 | int len; |
1813 | ||
f3bd58f4 MS |
1814 | addr_count = netdev_hw_addr_list_count(mc_list); |
1815 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1816 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1817 | if (pass_all) | |
e59647ea | 1818 | addr_count = 0; |
e59647ea EP |
1819 | |
1820 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1821 | cmd = kzalloc(len, GFP_ATOMIC); | |
1822 | if (!cmd) | |
1823 | return 0; | |
1824 | ||
1825 | if (pass_all) { | |
1826 | cmd->pass_all = 1; | |
1827 | return (u64)(unsigned long)cmd; | |
1828 | } | |
1829 | ||
1830 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1831 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1832 | cmd->count, addr->addr); | |
1833 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1834 | addr->addr, ETH_ALEN); | |
1835 | cmd->count++; | |
1836 | } | |
1837 | ||
1838 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1839 | } |
1840 | ||
1841 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1842 | unsigned int changed_flags, | |
1843 | unsigned int *total_flags, | |
1844 | u64 multicast) | |
1845 | { | |
e59647ea EP |
1846 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1847 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1848 | |
e59647ea | 1849 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1850 | |
e59647ea EP |
1851 | /* replace previous configuration */ |
1852 | kfree(mvm->mcast_filter_cmd); | |
1853 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1854 | |
e59647ea EP |
1855 | if (!cmd) |
1856 | goto out; | |
51b6b9e0 | 1857 | |
e59647ea EP |
1858 | iwl_mvm_recalc_multicast(mvm); |
1859 | out: | |
1860 | mutex_unlock(&mvm->mutex); | |
1861 | *total_flags = 0; | |
51b6b9e0 EG |
1862 | } |
1863 | ||
c87163b9 EP |
1864 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1865 | struct iwl_bcast_iter_data { | |
1866 | struct iwl_mvm *mvm; | |
1867 | struct iwl_bcast_filter_cmd *cmd; | |
1868 | u8 current_filter; | |
1869 | }; | |
1870 | ||
1871 | static void | |
1872 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1873 | const struct iwl_fw_bcast_filter *in_filter, | |
1874 | struct iwl_fw_bcast_filter *out_filter) | |
1875 | { | |
1876 | struct iwl_fw_bcast_filter_attr *attr; | |
1877 | int i; | |
1878 | ||
1879 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1880 | ||
1881 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1882 | attr = &out_filter->attrs[i]; | |
1883 | ||
1884 | if (!attr->mask) | |
1885 | break; | |
1886 | ||
2ee8f021 EP |
1887 | switch (attr->reserved1) { |
1888 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1889 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1890 | attr->mask = 0; | |
1891 | continue; | |
1892 | } | |
1893 | ||
1894 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1895 | break; | |
1896 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1897 | attr->val = *(__be32 *)&vif->addr[2]; | |
1898 | break; | |
1899 | default: | |
1900 | break; | |
1901 | } | |
1902 | attr->reserved1 = 0; | |
c87163b9 EP |
1903 | out_filter->num_attrs++; |
1904 | } | |
1905 | } | |
1906 | ||
1907 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1908 | struct ieee80211_vif *vif) | |
1909 | { | |
1910 | struct iwl_bcast_iter_data *data = _data; | |
1911 | struct iwl_mvm *mvm = data->mvm; | |
1912 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1913 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1914 | struct iwl_fw_bcast_mac *bcast_mac; | |
1915 | int i; | |
1916 | ||
1917 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1918 | return; | |
1919 | ||
1920 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1921 | ||
e48393e8 IP |
1922 | /* |
1923 | * enable filtering only for associated stations, but not for P2P | |
1924 | * Clients | |
1925 | */ | |
1926 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1927 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1928 | return; |
1929 | ||
1930 | bcast_mac->default_discard = 1; | |
1931 | ||
1932 | /* copy all configured filters */ | |
1933 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1934 | /* | |
1935 | * Make sure we don't exceed our filters limit. | |
1936 | * if there is still a valid filter to be configured, | |
1937 | * be on the safe side and just allow bcast for this mac. | |
1938 | */ | |
1939 | if (WARN_ON_ONCE(data->current_filter >= | |
1940 | ARRAY_SIZE(cmd->filters))) { | |
1941 | bcast_mac->default_discard = 0; | |
1942 | bcast_mac->attached_filters = 0; | |
1943 | break; | |
1944 | } | |
1945 | ||
1946 | iwl_mvm_set_bcast_filter(vif, | |
1947 | &mvm->bcast_filters[i], | |
1948 | &cmd->filters[data->current_filter]); | |
1949 | ||
1950 | /* skip current filter if it contains no attributes */ | |
1951 | if (!cmd->filters[data->current_filter].num_attrs) | |
1952 | continue; | |
1953 | ||
1954 | /* attach the filter to current mac */ | |
1955 | bcast_mac->attached_filters |= | |
1956 | cpu_to_le16(BIT(data->current_filter)); | |
1957 | ||
1958 | data->current_filter++; | |
1959 | } | |
1960 | } | |
1961 | ||
de06a59e EP |
1962 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1963 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1964 | { |
c87163b9 EP |
1965 | struct iwl_bcast_iter_data iter_data = { |
1966 | .mvm = mvm, | |
de06a59e | 1967 | .cmd = cmd, |
c87163b9 EP |
1968 | }; |
1969 | ||
3b8983b1 MS |
1970 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
1971 | return false; | |
1972 | ||
de06a59e EP |
1973 | memset(cmd, 0, sizeof(*cmd)); |
1974 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1975 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1976 | ||
1977 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1978 | /* use debugfs filters/macs if override is configured */ | |
1979 | if (mvm->dbgfs_bcast_filtering.override) { | |
1980 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1981 | sizeof(cmd->filters)); | |
1982 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1983 | sizeof(cmd->macs)); | |
1984 | return true; | |
1985 | } | |
1986 | #endif | |
c87163b9 EP |
1987 | |
1988 | /* if no filters are configured, do nothing */ | |
1989 | if (!mvm->bcast_filters) | |
de06a59e | 1990 | return false; |
c87163b9 EP |
1991 | |
1992 | /* configure and attach these filters for each associated sta vif */ | |
1993 | ieee80211_iterate_active_interfaces( | |
1994 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1995 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1996 | ||
de06a59e EP |
1997 | return true; |
1998 | } | |
1999 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
2000 | struct ieee80211_vif *vif) | |
2001 | { | |
2002 | struct iwl_bcast_filter_cmd cmd; | |
2003 | ||
2004 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
2005 | return 0; | |
2006 | ||
2007 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
2008 | return 0; | |
2009 | ||
a1022927 | 2010 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
2011 | sizeof(cmd), &cmd); |
2012 | } | |
2013 | #else | |
2014 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
2015 | struct ieee80211_vif *vif) | |
2016 | { | |
2017 | return 0; | |
2018 | } | |
2019 | #endif | |
2020 | ||
8ca151b5 JB |
2021 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
2022 | struct ieee80211_vif *vif, | |
2023 | struct ieee80211_bss_conf *bss_conf, | |
2024 | u32 changes) | |
2025 | { | |
2026 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2027 | int ret; | |
2028 | ||
6e97b0d2 IP |
2029 | /* |
2030 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2031 | * beacon interval, which was not known when the station interface was | |
2032 | * added. | |
2033 | */ | |
2034 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
2035 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2036 | ||
3dfd3a97 JB |
2037 | /* |
2038 | * If we're not associated yet, take the (new) BSSID before associating | |
2039 | * so the firmware knows. If we're already associated, then use the old | |
2040 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
2041 | * branch for disassociation below. | |
2042 | */ | |
2043 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
2044 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
2045 | ||
2046 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
2047 | if (ret) |
2048 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
2049 | ||
3dfd3a97 JB |
2050 | /* after sending it once, adopt mac80211 data */ |
2051 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
2052 | mvmvif->associated = bss_conf->assoc; | |
2053 | ||
8ca151b5 JB |
2054 | if (changes & BSS_CHANGED_ASSOC) { |
2055 | if (bss_conf->assoc) { | |
33cef925 JB |
2056 | /* clear statistics to get clean beacon counter */ |
2057 | iwl_mvm_request_statistics(mvm, true); | |
2058 | memset(&mvmvif->beacon_stats, 0, | |
2059 | sizeof(mvmvif->beacon_stats)); | |
2060 | ||
8ca151b5 | 2061 | /* add quota for this interface */ |
7754ae79 | 2062 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
2063 | if (ret) { |
2064 | IWL_ERR(mvm, "failed to update quotas\n"); | |
2065 | return; | |
2066 | } | |
016d27e1 JB |
2067 | |
2068 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
2069 | &mvm->status)) { | |
2070 | /* | |
2071 | * If we're restarting then the firmware will | |
2072 | * obviously have lost synchronisation with | |
2073 | * the AP. It will attempt to synchronise by | |
2074 | * itself, but we can make it more reliable by | |
2075 | * scheduling a session protection time event. | |
2076 | * | |
2077 | * The firmware needs to receive a beacon to | |
2078 | * catch up with synchronisation, use 110% of | |
2079 | * the beacon interval. | |
2080 | * | |
2081 | * Set a large maximum delay to allow for more | |
2082 | * than a single interface. | |
2083 | */ | |
2084 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
2085 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 2086 | 5 * dur, false); |
016d27e1 | 2087 | } |
1f3b0ff8 LE |
2088 | |
2089 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 2090 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 2091 | if (vif->p2p) { |
29a90a49 | 2092 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
2093 | iwl_mvm_update_smps(mvm, vif, |
2094 | IWL_MVM_SMPS_REQ_PROT, | |
2095 | IEEE80211_SMPS_DYNAMIC); | |
2096 | } | |
8ca151b5 | 2097 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
2098 | /* |
2099 | * If update fails - SF might be running in associated | |
2100 | * mode while disassociated - which is forbidden. | |
2101 | */ | |
2102 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
2103 | "Failed to update SF upon disassociation\n"); | |
2104 | ||
8ca151b5 JB |
2105 | /* remove AP station now that the MAC is unassoc */ |
2106 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
2107 | if (ret) | |
2108 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
2109 | |
2110 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
2111 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
2112 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
2113 | /* remove quota for this interface */ | |
7754ae79 | 2114 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
2115 | if (ret) |
2116 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
2117 | |
2118 | if (vif->p2p) | |
2119 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
2120 | |
2121 | /* this will take the cleared BSSID from bss_conf */ | |
2122 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2123 | if (ret) | |
2124 | IWL_ERR(mvm, | |
2125 | "failed to update MAC %pM (clear after unassoc)\n", | |
2126 | vif->addr); | |
8ca151b5 | 2127 | } |
a20fd398 | 2128 | |
e59647ea | 2129 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 2130 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 2131 | |
a20fd398 AO |
2132 | /* reset rssi values */ |
2133 | mvmvif->bf_data.ave_beacon_signal = 0; | |
2134 | ||
8e484f0b | 2135 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
2136 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
2137 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 2138 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
2139 | /* |
2140 | * We received a beacon _after_ association so | |
2141 | * remove the session protection. | |
2142 | */ | |
2143 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2144 | &mvmvif->time_event_data); | |
8ca151b5 | 2145 | } |
cc87d322 EH |
2146 | |
2147 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
2148 | iwl_mvm_sf_update(mvm, vif, false); | |
2149 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
2150 | } | |
2151 | ||
1bc10d3b JB |
2152 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { |
2153 | ret = iwl_mvm_power_update_mac(mvm); | |
2154 | if (ret) | |
2155 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2156 | } | |
2157 | ||
88f2fd73 MG |
2158 | if (changes & BSS_CHANGED_TXPOWER) { |
2159 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2160 | bss_conf->txpower); | |
2161 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2162 | } | |
a20fd398 AO |
2163 | |
2164 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2165 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2166 | /* reset cqm events tracking */ |
2167 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2168 | if (mvmvif->bf_data.bf_enabled) { |
2169 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2170 | if (ret) | |
2171 | IWL_ERR(mvm, | |
2172 | "failed to update CQM thresholds\n"); | |
2173 | } | |
a20fd398 | 2174 | } |
2ee8f021 EP |
2175 | |
2176 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2177 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
2ee8f021 EP |
2178 | iwl_mvm_configure_bcast_filter(mvm, vif); |
2179 | } | |
8ca151b5 JB |
2180 | } |
2181 | ||
5023d966 JB |
2182 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2183 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2184 | { |
2185 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2186 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2187 | int ret; | |
2188 | ||
576eeee9 EP |
2189 | /* |
2190 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2191 | * (the system time), so make sure it is available. | |
2192 | */ | |
2193 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2194 | if (ret) | |
2195 | return ret; | |
2196 | ||
8ca151b5 JB |
2197 | mutex_lock(&mvm->mutex); |
2198 | ||
2199 | /* Send the beacon template */ | |
2200 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2201 | if (ret) | |
2202 | goto out_unlock; | |
2203 | ||
6e97b0d2 IP |
2204 | /* |
2205 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2206 | * beacon interval, which was not known when the AP interface was added. | |
2207 | */ | |
2208 | if (vif->type == NL80211_IFTYPE_AP) | |
2209 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2210 | ||
8ca151b5 JB |
2211 | /* Add the mac context */ |
2212 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2213 | if (ret) | |
2214 | goto out_unlock; | |
2215 | ||
2216 | /* Perform the binding */ | |
2217 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2218 | if (ret) | |
2219 | goto out_remove; | |
2220 | ||
8ca151b5 JB |
2221 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
2222 | * are added and applied to the scheduler */ | |
013290aa | 2223 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
2224 | if (ret) |
2225 | goto out_unbind; | |
2226 | ||
5691e218 IP |
2227 | /* must be set before quota calculations */ |
2228 | mvmvif->ap_ibss_active = true; | |
2229 | ||
a11e144e | 2230 | /* power updated needs to be done before quotas */ |
999609f1 | 2231 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2232 | |
7754ae79 | 2233 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 | 2234 | if (ret) |
a11e144e | 2235 | goto out_quota_failed; |
8ca151b5 | 2236 | |
5023d966 | 2237 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2238 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2239 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2240 | |
29a90a49 EP |
2241 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2242 | ||
8e484f0b | 2243 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2244 | |
f697267f AN |
2245 | /* we don't support TDLS during DCM */ |
2246 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2247 | iwl_mvm_teardown_tdls_peers(mvm); | |
2248 | ||
939e4904 | 2249 | goto out_unlock; |
8ca151b5 | 2250 | |
a11e144e | 2251 | out_quota_failed: |
999609f1 | 2252 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2253 | mvmvif->ap_ibss_active = false; |
013290aa | 2254 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 JB |
2255 | out_unbind: |
2256 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2257 | out_remove: | |
2258 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2259 | out_unlock: | |
2260 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2261 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2262 | return ret; |
2263 | } | |
2264 | ||
5023d966 JB |
2265 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2266 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2267 | { |
2268 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2269 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2270 | ||
38a12b5b JB |
2271 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2272 | ||
8ca151b5 JB |
2273 | mutex_lock(&mvm->mutex); |
2274 | ||
664322fa | 2275 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2276 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2277 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2278 | &mvmvif->time_event_data); | |
664322fa | 2279 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
7f0a7c67 | 2280 | } |
664322fa | 2281 | |
003e5236 AO |
2282 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2283 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2284 | mvm->csa_tx_block_bcn_timeout = 0; | |
2285 | } | |
2286 | ||
5023d966 | 2287 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2288 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2289 | |
8e484f0b | 2290 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2291 | |
29a90a49 EP |
2292 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2293 | ||
5023d966 | 2294 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2295 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2296 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2297 | |
7754ae79 | 2298 | iwl_mvm_update_quotas(mvm, false, NULL); |
013290aa | 2299 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 | 2300 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2301 | |
999609f1 | 2302 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2303 | |
8ca151b5 JB |
2304 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2305 | ||
2306 | mutex_unlock(&mvm->mutex); | |
2307 | } | |
2308 | ||
5023d966 JB |
2309 | static void |
2310 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2311 | struct ieee80211_vif *vif, | |
2312 | struct ieee80211_bss_conf *bss_conf, | |
2313 | u32 changes) | |
8ca151b5 | 2314 | { |
be2056fc | 2315 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2316 | |
be2056fc IP |
2317 | /* Changes will be applied when the AP/IBSS is started */ |
2318 | if (!mvmvif->ap_ibss_active) | |
2319 | return; | |
2320 | ||
863230da | 2321 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2322 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2323 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2324 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2325 | |
8ca151b5 | 2326 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2327 | if (changes & BSS_CHANGED_BEACON && |
2328 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2329 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2330 | |
2331 | if (changes & BSS_CHANGED_TXPOWER) { | |
2332 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2333 | bss_conf->txpower); | |
2334 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2335 | } | |
2336 | ||
8ca151b5 JB |
2337 | } |
2338 | ||
2339 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2340 | struct ieee80211_vif *vif, | |
2341 | struct ieee80211_bss_conf *bss_conf, | |
2342 | u32 changes) | |
2343 | { | |
2344 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2345 | ||
576eeee9 EP |
2346 | /* |
2347 | * iwl_mvm_bss_info_changed_station() might call | |
2348 | * iwl_mvm_protect_session(), which reads directly from | |
2349 | * the device (the system time), so make sure it is available. | |
2350 | */ | |
2351 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2352 | return; | |
2353 | ||
8ca151b5 JB |
2354 | mutex_lock(&mvm->mutex); |
2355 | ||
723f02ed | 2356 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
fb98be5e | 2357 | iwl_mvm_scan_offload_stop(mvm, true); |
723f02ed | 2358 | |
8ca151b5 JB |
2359 | switch (vif->type) { |
2360 | case NL80211_IFTYPE_STATION: | |
2361 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2362 | break; | |
2363 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2364 | case NL80211_IFTYPE_ADHOC: |
2365 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
2366 | break; |
2367 | default: | |
2368 | /* shouldn't happen */ | |
2369 | WARN_ON_ONCE(1); | |
2370 | } | |
2371 | ||
2372 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2373 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2374 | } |
2375 | ||
2376 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
2377 | struct ieee80211_vif *vif, | |
c56ef672 | 2378 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2379 | { |
2380 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
c56ef672 | 2381 | struct cfg80211_scan_request *req = &hw_req->req; |
8ca151b5 JB |
2382 | int ret; |
2383 | ||
762533ba DS |
2384 | if (req->n_channels == 0 || |
2385 | req->n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2386 | return -EINVAL; |
2387 | ||
bd9564da LC |
2388 | mutex_lock(&mvm->mutex); |
2389 | ||
88931cc9 AN |
2390 | if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) { |
2391 | IWL_ERR(mvm, "scan while LAR regdomain is not set\n"); | |
2392 | ret = -EBUSY; | |
2393 | goto out; | |
2394 | } | |
2395 | ||
9af91f46 | 2396 | if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) { |
8ca151b5 | 2397 | ret = -EBUSY; |
519e2026 AN |
2398 | goto out; |
2399 | } | |
8ca151b5 | 2400 | |
4171bb33 LC |
2401 | if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) && |
2402 | (mvm->scan_status & IWL_MVM_SCAN_SCHED)) { | |
2403 | ret = iwl_mvm_scan_offload_stop(mvm, true); | |
2404 | if (ret) | |
2405 | goto out; | |
2406 | } | |
2407 | ||
519e2026 AN |
2408 | iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN); |
2409 | ||
b975e55a | 2410 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) |
d2496221 | 2411 | ret = iwl_mvm_scan_umac(mvm, vif, hw_req); |
fb98be5e | 2412 | else |
1f940386 | 2413 | ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req); |
fb98be5e | 2414 | |
519e2026 AN |
2415 | if (ret) |
2416 | iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); | |
2417 | out: | |
8ca151b5 | 2418 | mutex_unlock(&mvm->mutex); |
8ca151b5 JB |
2419 | return ret; |
2420 | } | |
2421 | ||
2422 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2423 | struct ieee80211_vif *vif) | |
2424 | { | |
2425 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2426 | ||
2427 | mutex_lock(&mvm->mutex); | |
2428 | ||
e7d3abab LC |
2429 | /* Due to a race condition, it's possible that mac80211 asks |
2430 | * us to stop a hw_scan when it's already stopped. This can | |
2431 | * happen, for instance, if we stopped the scan ourselves, | |
2432 | * called ieee80211_scan_completed() and the userspace called | |
2433 | * cancel scan scan before ieee80211_scan_work() could run. | |
2434 | * To handle that, simply return if the scan is not running. | |
2435 | */ | |
2436 | /* FIXME: for now, we ignore this race for UMAC scans, since | |
2437 | * they don't set the scan_status. | |
2438 | */ | |
9af91f46 | 2439 | if ((mvm->scan_status & IWL_MVM_SCAN_REGULAR) || |
e7d3abab LC |
2440 | (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) |
2441 | iwl_mvm_cancel_scan(mvm); | |
8ca151b5 JB |
2442 | |
2443 | mutex_unlock(&mvm->mutex); | |
2444 | } | |
2445 | ||
2446 | static void | |
2447 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2448 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2449 | int num_frames, |
2450 | enum ieee80211_frame_release_type reason, | |
2451 | bool more_data) | |
2452 | { | |
2453 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2454 | |
3e56eadf | 2455 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2456 | |
3e56eadf JB |
2457 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2458 | tids, more_data, false); | |
2459 | } | |
2460 | ||
2461 | static void | |
2462 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2463 | struct ieee80211_sta *sta, u16 tids, | |
2464 | int num_frames, | |
2465 | enum ieee80211_frame_release_type reason, | |
2466 | bool more_data) | |
2467 | { | |
2468 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2469 | ||
2470 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
2471 | ||
2472 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2473 | tids, more_data, true); | |
8ca151b5 JB |
2474 | } |
2475 | ||
2476 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
2477 | struct ieee80211_vif *vif, | |
2478 | enum sta_notify_cmd cmd, | |
2479 | struct ieee80211_sta *sta) | |
2480 | { | |
2481 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2482 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
c22b0ff5 | 2483 | unsigned long txqs = 0, tids = 0; |
3e56eadf | 2484 | int tid; |
8ca151b5 | 2485 | |
c22b0ff5 EG |
2486 | spin_lock_bh(&mvmsta->lock); |
2487 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2488 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
2489 | ||
2490 | if (tid_data->state != IWL_AGG_ON && | |
2491 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
2492 | continue; | |
2493 | ||
2494 | __set_bit(tid_data->txq_id, &txqs); | |
2495 | ||
2496 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
2497 | continue; | |
2498 | ||
2499 | __set_bit(tid, &tids); | |
2500 | } | |
2501 | ||
8ca151b5 JB |
2502 | switch (cmd) { |
2503 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 2504 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 2505 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf | 2506 | |
c22b0ff5 | 2507 | for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
3e56eadf | 2508 | ieee80211_sta_set_buffered(sta, tid, true); |
c22b0ff5 EG |
2509 | |
2510 | if (txqs) | |
2511 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); | |
8ca151b5 JB |
2512 | /* |
2513 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2514 | * queues to this station will not be transmitted. The fw will | |
2515 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2516 | */ | |
2517 | break; | |
2518 | case STA_NOTIFY_AWAKE: | |
881acd89 | 2519 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 2520 | break; |
c22b0ff5 EG |
2521 | |
2522 | if (txqs) | |
2523 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); | |
9cc40712 | 2524 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2525 | break; |
2526 | default: | |
2527 | break; | |
2528 | } | |
c22b0ff5 | 2529 | spin_unlock_bh(&mvmsta->lock); |
8ca151b5 JB |
2530 | } |
2531 | ||
1ddbbb0c JB |
2532 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2533 | struct ieee80211_vif *vif, | |
2534 | struct ieee80211_sta *sta) | |
2535 | { | |
2536 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2537 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2538 | |
2539 | /* | |
2540 | * This is called before mac80211 does RCU synchronisation, | |
2541 | * so here we already invalidate our internal RCU-protected | |
2542 | * station pointer. The rest of the code will thus no longer | |
2543 | * be able to find the station this way, and we don't rely | |
2544 | * on further RCU synchronisation after the sta_state() | |
2545 | * callback deleted the station. | |
2546 | */ | |
2547 | mutex_lock(&mvm->mutex); | |
2548 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2549 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2550 | ERR_PTR(-ENOENT)); | |
2551 | mutex_unlock(&mvm->mutex); | |
2552 | } | |
2553 | ||
bd1ba664 JB |
2554 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2555 | const u8 *bssid) | |
2556 | { | |
2557 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2558 | return; | |
2559 | ||
2560 | if (iwlwifi_mod_params.uapsd_disable) { | |
2561 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; | |
2562 | return; | |
2563 | } | |
2564 | ||
2565 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2566 | } | |
2567 | ||
8ca151b5 JB |
2568 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2569 | struct ieee80211_vif *vif, | |
2570 | struct ieee80211_sta *sta, | |
2571 | enum ieee80211_sta_state old_state, | |
2572 | enum ieee80211_sta_state new_state) | |
2573 | { | |
2574 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2575 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2576 | int ret; | |
2577 | ||
2578 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2579 | sta->addr, old_state, new_state); | |
2580 | ||
2581 | /* this would be a mac80211 bug ... but don't crash */ | |
2582 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2583 | return -EINVAL; | |
2584 | ||
2585 | /* if a STA is being removed, reuse its ID */ | |
2586 | flush_work(&mvm->sta_drained_wk); | |
2587 | ||
2588 | mutex_lock(&mvm->mutex); | |
2589 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2590 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2591 | /* |
2592 | * Firmware bug - it'll crash if the beacon interval is less | |
2593 | * than 16. We can't avoid connecting at all, so refuse the | |
2594 | * station state change, this will cause mac80211 to abandon | |
2595 | * attempts to connect to this AP, and eventually wpa_s will | |
2596 | * blacklist the AP... | |
2597 | */ | |
2598 | if (vif->type == NL80211_IFTYPE_STATION && | |
2599 | vif->bss_conf.beacon_int < 16) { | |
2600 | IWL_ERR(mvm, | |
2601 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2602 | sta->addr, vif->bss_conf.beacon_int); | |
2603 | ret = -EINVAL; | |
2604 | goto out_unlock; | |
2605 | } | |
cf7b491d AN |
2606 | |
2607 | if (sta->tdls && | |
2608 | (vif->p2p || | |
fa3d07e4 AN |
2609 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2610 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2611 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2612 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2613 | ret = -EBUSY; | |
2614 | goto out_unlock; | |
2615 | } | |
2616 | ||
8ca151b5 | 2617 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
fa3d07e4 AN |
2618 | if (sta->tdls && ret == 0) |
2619 | iwl_mvm_recalc_tdls_state(mvm, vif, true); | |
8ca151b5 JB |
2620 | } else if (old_state == IEEE80211_STA_NONE && |
2621 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2622 | /* |
2623 | * EBS may be disabled due to previous failures reported by FW. | |
2624 | * Reset EBS status here assuming environment has been changed. | |
2625 | */ | |
2626 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2627 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2628 | ret = 0; |
2629 | } else if (old_state == IEEE80211_STA_AUTH && | |
2630 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
2631 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
2632 | if (ret == 0) | |
2633 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
2634 | mvmvif->phy_ctxt->channel->band, |
2635 | true); | |
8ca151b5 JB |
2636 | } else if (old_state == IEEE80211_STA_ASSOC && |
2637 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2638 | |
2639 | /* we don't support TDLS during DCM */ | |
2640 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2641 | iwl_mvm_teardown_tdls_peers(mvm); | |
2642 | ||
7df15b1e | 2643 | /* enable beacon filtering */ |
fa7b2e7f | 2644 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2645 | ret = 0; |
2646 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2647 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2648 | /* disable beacon filtering */ |
a1022927 | 2649 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2650 | ret = 0; |
2651 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2652 | new_state == IEEE80211_STA_AUTH) { | |
2653 | ret = 0; | |
2654 | } else if (old_state == IEEE80211_STA_AUTH && | |
2655 | new_state == IEEE80211_STA_NONE) { | |
2656 | ret = 0; | |
2657 | } else if (old_state == IEEE80211_STA_NONE && | |
2658 | new_state == IEEE80211_STA_NOTEXIST) { | |
2659 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
fa3d07e4 AN |
2660 | if (sta->tdls) |
2661 | iwl_mvm_recalc_tdls_state(mvm, vif, false); | |
8ca151b5 JB |
2662 | } else { |
2663 | ret = -EIO; | |
2664 | } | |
48bc1307 | 2665 | out_unlock: |
8ca151b5 JB |
2666 | mutex_unlock(&mvm->mutex); |
2667 | ||
9c126cd6 LK |
2668 | if (sta->tdls && ret == 0) { |
2669 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2670 | new_state == IEEE80211_STA_NONE) | |
2671 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2672 | else if (old_state == IEEE80211_STA_NONE && | |
2673 | new_state == IEEE80211_STA_NOTEXIST) | |
2674 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2675 | } | |
2676 | ||
8ca151b5 JB |
2677 | return ret; |
2678 | } | |
2679 | ||
2680 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2681 | { | |
2682 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2683 | ||
2684 | mvm->rts_threshold = value; | |
2685 | ||
2686 | return 0; | |
2687 | } | |
2688 | ||
1f3b0ff8 LE |
2689 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2690 | struct ieee80211_vif *vif, | |
2691 | struct ieee80211_sta *sta, u32 changed) | |
2692 | { | |
2693 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2694 | ||
2695 | if (vif->type == NL80211_IFTYPE_STATION && | |
2696 | changed & IEEE80211_RC_NSS_CHANGED) | |
2697 | iwl_mvm_sf_update(mvm, vif, false); | |
2698 | } | |
2699 | ||
8ca151b5 JB |
2700 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2701 | struct ieee80211_vif *vif, u16 ac, | |
2702 | const struct ieee80211_tx_queue_params *params) | |
2703 | { | |
2704 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2705 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2706 | ||
2707 | mvmvif->queue_params[ac] = *params; | |
2708 | ||
2709 | /* | |
2710 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2711 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2712 | */ | |
2713 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2714 | int ret; | |
2715 | ||
2716 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2717 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2718 | mutex_unlock(&mvm->mutex); |
2719 | return ret; | |
2720 | } | |
2721 | return 0; | |
2722 | } | |
2723 | ||
2724 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2725 | struct ieee80211_vif *vif) | |
2726 | { | |
2727 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2728 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
2729 | 200 + vif->bss_conf.beacon_int); | |
2730 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
2731 | 100 + vif->bss_conf.beacon_int); | |
2732 | ||
2733 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2734 | return; | |
2735 | ||
576eeee9 EP |
2736 | /* |
2737 | * iwl_mvm_protect_session() reads directly from the device | |
2738 | * (the system time), so make sure it is available. | |
2739 | */ | |
2740 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2741 | return; | |
2742 | ||
8ca151b5 JB |
2743 | mutex_lock(&mvm->mutex); |
2744 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2745 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2746 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2747 | |
2748 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2749 | } |
2750 | ||
35a000b7 DS |
2751 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2752 | struct ieee80211_vif *vif, | |
2753 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2754 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2755 | { |
2756 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2757 | int ret; | |
2758 | ||
bd9564da LC |
2759 | mutex_lock(&mvm->mutex); |
2760 | ||
88931cc9 AN |
2761 | if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) { |
2762 | IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n"); | |
2763 | ret = -EBUSY; | |
2764 | goto out; | |
2765 | } | |
2766 | ||
1f940386 | 2767 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2768 | ret = -EBUSY; |
2769 | goto out; | |
2770 | } | |
2771 | ||
9af91f46 | 2772 | if (mvm->scan_status & IWL_MVM_SCAN_SCHED) { |
35a000b7 DS |
2773 | ret = -EBUSY; |
2774 | goto out; | |
2775 | } | |
2776 | ||
4171bb33 LC |
2777 | if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) && |
2778 | (mvm->scan_status & IWL_MVM_SCAN_REGULAR)) { | |
2779 | ret = iwl_mvm_cancel_scan(mvm); | |
2780 | if (ret) | |
2781 | goto out; | |
2782 | } | |
2783 | ||
b141c235 | 2784 | ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies); |
35a000b7 | 2785 | if (ret) |
9af91f46 | 2786 | mvm->scan_status &= ~IWL_MVM_SCAN_SCHED; |
d2496221 | 2787 | |
35a000b7 DS |
2788 | out: |
2789 | mutex_unlock(&mvm->mutex); | |
2790 | return ret; | |
2791 | } | |
2792 | ||
37e3308c JB |
2793 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2794 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2795 | { |
2796 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2797 | int ret; |
35a000b7 DS |
2798 | |
2799 | mutex_lock(&mvm->mutex); | |
e7d3abab LC |
2800 | |
2801 | /* Due to a race condition, it's possible that mac80211 asks | |
2802 | * us to stop a sched_scan when it's already stopped. This | |
2803 | * can happen, for instance, if we stopped the scan ourselves, | |
2804 | * called ieee80211_sched_scan_stopped() and the userspace called | |
2805 | * stop sched scan scan before ieee80211_sched_scan_stopped_work() | |
2806 | * could run. To handle this, simply return if the scan is | |
2807 | * not running. | |
2808 | */ | |
2809 | /* FIXME: for now, we ignore this race for UMAC scans, since | |
2810 | * they don't set the scan_status. | |
2811 | */ | |
9af91f46 | 2812 | if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED) && |
e7d3abab LC |
2813 | !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
2814 | mutex_unlock(&mvm->mutex); | |
2815 | return 0; | |
2816 | } | |
2817 | ||
fb98be5e | 2818 | ret = iwl_mvm_scan_offload_stop(mvm, false); |
35a000b7 | 2819 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2820 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2821 | |
33ea27f6 | 2822 | return ret; |
35a000b7 DS |
2823 | } |
2824 | ||
8ca151b5 JB |
2825 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2826 | enum set_key_cmd cmd, | |
2827 | struct ieee80211_vif *vif, | |
2828 | struct ieee80211_sta *sta, | |
2829 | struct ieee80211_key_conf *key) | |
2830 | { | |
2831 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2832 | int ret; | |
2833 | ||
2834 | if (iwlwifi_mod_params.sw_crypto) { | |
2835 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
2836 | return -EOPNOTSUPP; | |
2837 | } | |
2838 | ||
2839 | switch (key->cipher) { | |
2840 | case WLAN_CIPHER_SUITE_TKIP: | |
2841 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
2842 | /* fall-through */ | |
2843 | case WLAN_CIPHER_SUITE_CCMP: | |
2844 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2845 | break; | |
2846 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
2847 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
2848 | break; | |
2849 | case WLAN_CIPHER_SUITE_WEP40: | |
2850 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2851 | /* For non-client mode, only use WEP keys for TX as we probably |
2852 | * don't have a station yet anyway and would then have to keep | |
2853 | * track of the keys, linking them to each of the clients/peers | |
2854 | * as they appear. For now, don't do that, for performance WEP | |
2855 | * offload doesn't really matter much, but we need it for some | |
2856 | * other offload features in client mode. | |
8ca151b5 | 2857 | */ |
ba3943b0 JB |
2858 | if (vif->type != NL80211_IFTYPE_STATION) |
2859 | return 0; | |
2860 | break; | |
8ca151b5 | 2861 | default: |
e36e5433 MS |
2862 | /* currently FW supports only one optional cipher scheme */ |
2863 | if (hw->n_cipher_schemes && | |
2864 | hw->cipher_schemes->cipher == key->cipher) | |
2865 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2866 | else | |
2867 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2868 | } |
2869 | ||
2870 | mutex_lock(&mvm->mutex); | |
2871 | ||
2872 | switch (cmd) { | |
2873 | case SET_KEY: | |
5023d966 JB |
2874 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2875 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2876 | /* | |
2877 | * GTK on AP interface is a TX-only key, return 0; | |
2878 | * on IBSS they're per-station and because we're lazy | |
2879 | * we don't support them for RX, so do the same. | |
2880 | */ | |
6caffd4f JB |
2881 | ret = 0; |
2882 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
2883 | break; | |
2884 | } | |
2885 | ||
8ca151b5 JB |
2886 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
2887 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
2888 | if (ret) { | |
2889 | IWL_WARN(mvm, "set key failed\n"); | |
2890 | /* | |
2891 | * can't add key for RX, but we don't need it | |
2892 | * in the device for TX so still return 0 | |
2893 | */ | |
6caffd4f | 2894 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
2895 | ret = 0; |
2896 | } | |
2897 | ||
2898 | break; | |
2899 | case DISABLE_KEY: | |
6caffd4f JB |
2900 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
2901 | ret = 0; | |
2902 | break; | |
2903 | } | |
2904 | ||
8ca151b5 JB |
2905 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2906 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2907 | break; | |
2908 | default: | |
2909 | ret = -EINVAL; | |
2910 | } | |
2911 | ||
2912 | mutex_unlock(&mvm->mutex); | |
2913 | return ret; | |
2914 | } | |
2915 | ||
2916 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2917 | struct ieee80211_vif *vif, | |
2918 | struct ieee80211_key_conf *keyconf, | |
2919 | struct ieee80211_sta *sta, | |
2920 | u32 iv32, u16 *phase1key) | |
2921 | { | |
2922 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2923 | ||
5023d966 JB |
2924 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2925 | return; | |
2926 | ||
8ca151b5 JB |
2927 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2928 | } | |
2929 | ||
2930 | ||
b112889c AM |
2931 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
2932 | struct iwl_rx_packet *pkt, void *data) | |
2933 | { | |
2934 | struct iwl_mvm *mvm = | |
2935 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
2936 | struct iwl_hs20_roc_res *resp; | |
2937 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
2938 | struct iwl_mvm_time_event_data *te_data = data; | |
2939 | ||
2940 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
2941 | return true; | |
2942 | ||
2943 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
2944 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
2945 | return true; | |
2946 | } | |
2947 | ||
2948 | resp = (void *)pkt->data; | |
2949 | ||
2950 | IWL_DEBUG_TE(mvm, | |
2951 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
2952 | resp->status, resp->event_unique_id); | |
2953 | ||
2954 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
2955 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
2956 | te_data->uid); | |
2957 | ||
2958 | spin_lock_bh(&mvm->time_event_lock); | |
2959 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
2960 | spin_unlock_bh(&mvm->time_event_lock); | |
2961 | ||
2962 | return true; | |
2963 | } | |
2964 | ||
35d3dab5 | 2965 | #define AUX_ROC_MAX_DELAY_ON_CHANNEL 200 |
b112889c AM |
2966 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
2967 | struct ieee80211_channel *channel, | |
2968 | struct ieee80211_vif *vif, | |
2969 | int duration) | |
2970 | { | |
2971 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
2972 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2973 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
2974 | static const u8 time_event_response[] = { HOT_SPOT_CMD }; | |
2975 | struct iwl_notification_wait wait_time_event; | |
2976 | struct iwl_hs20_roc_req aux_roc_req = { | |
2977 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
2978 | .id_and_color = | |
2979 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
2980 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
2981 | /* Set the channel info data */ | |
2982 | .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? | |
2983 | PHY_BAND_24 : PHY_BAND_5, | |
2984 | .channel_info.channel = channel->hw_value, | |
2985 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
2986 | /* Set the time and duration */ | |
2987 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
2988 | .apply_time_max_delay = | |
2989 | cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)), | |
2990 | .duration = cpu_to_le32(MSEC_TO_TU(duration)), | |
2991 | }; | |
2992 | ||
2993 | /* Set the node address */ | |
2994 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
2995 | ||
a6cc5163 MG |
2996 | lockdep_assert_held(&mvm->mutex); |
2997 | ||
2998 | spin_lock_bh(&mvm->time_event_lock); | |
2999 | ||
3000 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
3001 | spin_unlock_bh(&mvm->time_event_lock); | |
3002 | return -EIO; | |
3003 | } | |
3004 | ||
b112889c AM |
3005 | te_data->vif = vif; |
3006 | te_data->duration = duration; | |
3007 | te_data->id = HOT_SPOT_CMD; | |
3008 | ||
b112889c AM |
3009 | spin_unlock_bh(&mvm->time_event_lock); |
3010 | ||
3011 | /* | |
3012 | * Use a notification wait, which really just processes the | |
3013 | * command response and doesn't wait for anything, in order | |
3014 | * to be able to process the response and get the UID inside | |
3015 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
3016 | * stores the buffer and then wakes up this thread, by which | |
3017 | * time another notification (that the time event started) | |
3018 | * might already be processed unsuccessfully. | |
3019 | */ | |
3020 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
3021 | time_event_response, | |
3022 | ARRAY_SIZE(time_event_response), | |
3023 | iwl_mvm_rx_aux_roc, te_data); | |
3024 | ||
3025 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
3026 | &aux_roc_req); | |
3027 | ||
3028 | if (res) { | |
3029 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
3030 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
3031 | goto out_clear_te; | |
3032 | } | |
3033 | ||
3034 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
3035 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
3036 | /* should never fail */ | |
3037 | WARN_ON_ONCE(res); | |
3038 | ||
3039 | if (res) { | |
3040 | out_clear_te: | |
3041 | spin_lock_bh(&mvm->time_event_lock); | |
3042 | iwl_mvm_te_clear_data(mvm, te_data); | |
3043 | spin_unlock_bh(&mvm->time_event_lock); | |
3044 | } | |
3045 | ||
3046 | return res; | |
3047 | } | |
3048 | ||
8ca151b5 JB |
3049 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
3050 | struct ieee80211_vif *vif, | |
3051 | struct ieee80211_channel *channel, | |
d339d5ca IP |
3052 | int duration, |
3053 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
3054 | { |
3055 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 3056 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 3057 | struct cfg80211_chan_def chandef; |
31d385ae IP |
3058 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
3059 | int ret, i; | |
3060 | ||
3061 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
3062 | duration, type); | |
8ca151b5 | 3063 | |
6ed13164 MG |
3064 | flush_work(&mvm->roc_done_wk); |
3065 | ||
a6cc5163 MG |
3066 | mutex_lock(&mvm->mutex); |
3067 | ||
b112889c AM |
3068 | switch (vif->type) { |
3069 | case NL80211_IFTYPE_STATION: | |
5ac6c72e LC |
3070 | if (mvm->fw->ucode_capa.capa[0] & |
3071 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) { | |
3072 | /* Use aux roc framework (HS20) */ | |
3073 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
3074 | vif, duration); | |
3075 | goto out_unlock; | |
3076 | } | |
3077 | IWL_ERR(mvm, "hotspot not supported\n"); | |
3078 | ret = -EINVAL; | |
a6cc5163 | 3079 | goto out_unlock; |
b112889c AM |
3080 | case NL80211_IFTYPE_P2P_DEVICE: |
3081 | /* handle below */ | |
3082 | break; | |
3083 | default: | |
3084 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
3085 | ret = -EINVAL; |
3086 | goto out_unlock; | |
8ca151b5 JB |
3087 | } |
3088 | ||
31d385ae IP |
3089 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3090 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3091 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3092 | continue; | |
3093 | ||
3094 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3095 | /* | |
3096 | * Unbind the P2P_DEVICE from the current PHY context, | |
3097 | * and if the PHY context is not used remove it. | |
3098 | */ | |
3099 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3100 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3101 | goto out_unlock; | |
3102 | ||
3103 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3104 | ||
3105 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3106 | mvmvif->phy_ctxt = phy_ctxt; | |
3107 | ||
3108 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3109 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3110 | goto out_unlock; | |
3111 | ||
3112 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3113 | goto schedule_time_event; | |
3114 | } | |
3115 | } | |
3116 | ||
3117 | /* Need to update the PHY context only if the ROC channel changed */ | |
3118 | if (channel == mvmvif->phy_ctxt->channel) | |
3119 | goto schedule_time_event; | |
3120 | ||
8ca151b5 | 3121 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3122 | |
31d385ae IP |
3123 | /* |
3124 | * Change the PHY context configuration as it is currently referenced | |
3125 | * only by the P2P Device MAC | |
3126 | */ | |
3127 | if (mvmvif->phy_ctxt->ref == 1) { | |
3128 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3129 | &chandef, 1, 1); | |
3130 | if (ret) | |
3131 | goto out_unlock; | |
3132 | } else { | |
3133 | /* | |
3134 | * The PHY context is shared with other MACs. Need to remove the | |
3135 | * P2P Device from the binding, allocate an new PHY context and | |
3136 | * create a new binding | |
3137 | */ | |
3138 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3139 | if (!phy_ctxt) { | |
3140 | ret = -ENOSPC; | |
3141 | goto out_unlock; | |
3142 | } | |
3143 | ||
3144 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3145 | 1, 1); | |
3146 | if (ret) { | |
3147 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3148 | goto out_unlock; | |
3149 | } | |
3150 | ||
3151 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3152 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3153 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3154 | goto out_unlock; | |
3155 | ||
3156 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3157 | ||
3158 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3159 | mvmvif->phy_ctxt = phy_ctxt; | |
3160 | ||
3161 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3162 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3163 | goto out_unlock; | |
3164 | ||
3165 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3166 | } | |
3167 | ||
3168 | schedule_time_event: | |
8ca151b5 | 3169 | /* Schedule the time events */ |
e635c797 | 3170 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3171 | |
31d385ae | 3172 | out_unlock: |
8ca151b5 JB |
3173 | mutex_unlock(&mvm->mutex); |
3174 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3175 | return ret; |
3176 | } | |
3177 | ||
3178 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3179 | { | |
3180 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3181 | ||
3182 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3183 | ||
3184 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3185 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3186 | mutex_unlock(&mvm->mutex); |
3187 | ||
3188 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3189 | return 0; | |
3190 | } | |
3191 | ||
b08c1d97 LC |
3192 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3193 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3194 | { |
fe0f2de3 IP |
3195 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3196 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3197 | int ret; |
3198 | ||
b08c1d97 LC |
3199 | lockdep_assert_held(&mvm->mutex); |
3200 | ||
53a9d61e | 3201 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3202 | |
fe0f2de3 IP |
3203 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3204 | if (!phy_ctxt) { | |
3205 | ret = -ENOSPC; | |
3206 | goto out; | |
3207 | } | |
8ca151b5 | 3208 | |
dcbc3e1a | 3209 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3210 | ctx->rx_chains_static, |
3211 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3212 | if (ret) { |
3213 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3214 | goto out; | |
3215 | } | |
3216 | ||
53a9d61e | 3217 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3218 | *phy_ctxt_id = phy_ctxt->id; |
3219 | out: | |
b08c1d97 LC |
3220 | return ret; |
3221 | } | |
3222 | ||
3223 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3224 | struct ieee80211_chanctx_conf *ctx) | |
3225 | { | |
3226 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3227 | int ret; | |
3228 | ||
3229 | mutex_lock(&mvm->mutex); | |
3230 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3231 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3232 | |
8ca151b5 JB |
3233 | return ret; |
3234 | } | |
3235 | ||
b08c1d97 LC |
3236 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3237 | struct ieee80211_chanctx_conf *ctx) | |
3238 | { | |
3239 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3240 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3241 | ||
3242 | lockdep_assert_held(&mvm->mutex); | |
3243 | ||
3244 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3245 | } | |
3246 | ||
8ca151b5 JB |
3247 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3248 | struct ieee80211_chanctx_conf *ctx) | |
3249 | { | |
3250 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3251 | |
3252 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3253 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3254 | mutex_unlock(&mvm->mutex); |
3255 | } | |
3256 | ||
3257 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3258 | struct ieee80211_chanctx_conf *ctx, | |
3259 | u32 changed) | |
3260 | { | |
3261 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3262 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3263 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3264 | |
31d385ae IP |
3265 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3266 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3267 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3268 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3269 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3270 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3271 | phy_ctxt->ref, changed)) | |
3272 | return; | |
3273 | ||
8ca151b5 | 3274 | mutex_lock(&mvm->mutex); |
4d66449a | 3275 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3276 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3277 | ctx->rx_chains_static, |
3278 | ctx->rx_chains_dynamic); | |
3279 | mutex_unlock(&mvm->mutex); | |
3280 | } | |
3281 | ||
b08c1d97 LC |
3282 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3283 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3284 | struct ieee80211_chanctx_conf *ctx, |
3285 | bool switching_chanctx) | |
8ca151b5 | 3286 | { |
fe0f2de3 IP |
3287 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3288 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3289 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3290 | int ret; | |
3291 | ||
b08c1d97 | 3292 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3293 | |
fe0f2de3 | 3294 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3295 | |
3296 | switch (vif->type) { | |
3297 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3298 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3299 | if (switching_chanctx) { | |
bd3398e2 AO |
3300 | mvmvif->ap_ibss_active = true; |
3301 | break; | |
3302 | } | |
5023d966 | 3303 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3304 | /* |
3305 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3306 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3307 | */ |
3308 | ret = 0; | |
b08c1d97 | 3309 | goto out; |
8ca151b5 | 3310 | case NL80211_IFTYPE_STATION: |
2533edce | 3311 | break; |
8ca151b5 | 3312 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3313 | /* always disable PS when a monitor interface is active */ |
3314 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3315 | break; |
3316 | default: | |
3317 | ret = -EINVAL; | |
b08c1d97 | 3318 | goto out; |
8ca151b5 JB |
3319 | } |
3320 | ||
3321 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3322 | if (ret) | |
b08c1d97 | 3323 | goto out; |
8ca151b5 JB |
3324 | |
3325 | /* | |
92d85562 AB |
3326 | * Power state must be updated before quotas, |
3327 | * otherwise fw will complain. | |
3328 | */ | |
999609f1 | 3329 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3330 | |
3331 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3332 | * interfaces. For the other types, the bss_info changed flow |
3333 | * will handle quota settings. | |
3334 | */ | |
3335 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3336 | mvmvif->monitor_active = true; |
7754ae79 | 3337 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
3338 | if (ret) |
3339 | goto out_remove_binding; | |
3340 | } | |
3341 | ||
bd3398e2 | 3342 | /* Handle binding during CSA */ |
a57c688d | 3343 | if (vif->type == NL80211_IFTYPE_AP) { |
7754ae79 | 3344 | iwl_mvm_update_quotas(mvm, false, NULL); |
3dfd3a97 | 3345 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3346 | } |
3347 | ||
4741dd04 | 3348 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3349 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3350 | ||
3351 | /* iwl_mvm_protect_session() reads directly from the | |
3352 | * device (the system time), so make sure it is | |
3353 | * available. | |
3354 | */ | |
3355 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3356 | if (ret) | |
3357 | goto out_remove_binding; | |
3358 | ||
3359 | /* Protect the session to make sure we hear the first | |
3360 | * beacon on the new channel. | |
3361 | */ | |
3362 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3363 | vif->bss_conf.beacon_int / 2, | |
3364 | true); | |
3365 | ||
3366 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3367 | ||
7754ae79 | 3368 | iwl_mvm_update_quotas(mvm, false, NULL); |
0ce04ce7 LC |
3369 | } |
3370 | ||
b08c1d97 | 3371 | goto out; |
8ca151b5 | 3372 | |
b08c1d97 | 3373 | out_remove_binding: |
8ca151b5 | 3374 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3375 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3376 | out: |
8ca151b5 JB |
3377 | if (ret) |
3378 | mvmvif->phy_ctxt = NULL; | |
3379 | return ret; | |
3380 | } | |
b08c1d97 LC |
3381 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3382 | struct ieee80211_vif *vif, | |
3383 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3384 | { |
3385 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3386 | int ret; |
8ca151b5 JB |
3387 | |
3388 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3389 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3390 | mutex_unlock(&mvm->mutex); |
3391 | ||
3392 | return ret; | |
3393 | } | |
3394 | ||
3395 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3396 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3397 | struct ieee80211_chanctx_conf *ctx, |
3398 | bool switching_chanctx) | |
b08c1d97 LC |
3399 | { |
3400 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3401 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3402 | |
3403 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3404 | |
3405 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3406 | ||
8ca151b5 | 3407 | switch (vif->type) { |
5023d966 | 3408 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3409 | goto out; |
8ca151b5 | 3410 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3411 | mvmvif->monitor_active = false; |
2533edce | 3412 | mvmvif->ps_disabled = false; |
8ca151b5 | 3413 | break; |
bd3398e2 AO |
3414 | case NL80211_IFTYPE_AP: |
3415 | /* This part is triggered only during CSA */ | |
4741dd04 | 3416 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3417 | goto out; |
bd3398e2 | 3418 | |
7ef0aab6 AO |
3419 | mvmvif->csa_countdown = false; |
3420 | ||
003e5236 AO |
3421 | /* Set CS bit on all the stations */ |
3422 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3423 | ||
3424 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3425 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3426 | ||
bd3398e2 | 3427 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3428 | break; |
3429 | case NL80211_IFTYPE_STATION: | |
3430 | if (!switching_chanctx) | |
3431 | break; | |
3432 | ||
3433 | disabled_vif = vif; | |
3434 | ||
3dfd3a97 | 3435 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3436 | break; |
8ca151b5 JB |
3437 | default: |
3438 | break; | |
3439 | } | |
3440 | ||
7754ae79 | 3441 | iwl_mvm_update_quotas(mvm, false, disabled_vif); |
1e1391ca | 3442 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3443 | |
b08c1d97 | 3444 | out: |
a11e144e | 3445 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3446 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3447 | } |
3448 | ||
3449 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3450 | struct ieee80211_vif *vif, | |
3451 | struct ieee80211_chanctx_conf *ctx) | |
3452 | { | |
3453 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3454 | ||
3455 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3456 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3457 | mutex_unlock(&mvm->mutex); |
3458 | } | |
3459 | ||
50cc9574 LC |
3460 | static int |
3461 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3462 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3463 | { |
b08c1d97 LC |
3464 | int ret; |
3465 | ||
b08c1d97 | 3466 | mutex_lock(&mvm->mutex); |
f0c97783 | 3467 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3468 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3469 | ||
3470 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3471 | if (ret) { | |
3472 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3473 | goto out_reassign; | |
3474 | } | |
3475 | ||
f0c97783 LC |
3476 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3477 | true); | |
b08c1d97 LC |
3478 | if (ret) { |
3479 | IWL_ERR(mvm, | |
3480 | "failed to assign new_ctx during channel switch\n"); | |
3481 | goto out_remove; | |
3482 | } | |
3483 | ||
f697267f AN |
3484 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3485 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3486 | iwl_mvm_teardown_tdls_peers(mvm); | |
3487 | ||
b08c1d97 LC |
3488 | goto out; |
3489 | ||
3490 | out_remove: | |
3491 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3492 | ||
3493 | out_reassign: | |
6fd1fb63 | 3494 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3495 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3496 | goto out_restart; | |
3497 | } | |
3498 | ||
6fd1fb63 LC |
3499 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3500 | true)) { | |
b08c1d97 LC |
3501 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3502 | goto out_restart; | |
3503 | } | |
3504 | ||
3505 | goto out; | |
3506 | ||
3507 | out_restart: | |
3508 | /* things keep failing, better restart the hw */ | |
3509 | iwl_mvm_nic_restart(mvm, false); | |
3510 | ||
3511 | out: | |
3512 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3513 | |
3514 | return ret; | |
3515 | } | |
3516 | ||
48a256e8 LC |
3517 | static int |
3518 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3519 | struct ieee80211_vif_chanctx_switch *vifs) | |
3520 | { | |
3521 | int ret; | |
3522 | ||
3523 | mutex_lock(&mvm->mutex); | |
3524 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3525 | ||
3526 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3527 | true); | |
3528 | if (ret) { | |
3529 | IWL_ERR(mvm, | |
3530 | "failed to assign new_ctx during channel switch\n"); | |
3531 | goto out_reassign; | |
3532 | } | |
3533 | ||
3534 | goto out; | |
3535 | ||
3536 | out_reassign: | |
3537 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3538 | true)) { | |
3539 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3540 | goto out_restart; | |
3541 | } | |
3542 | ||
3543 | goto out; | |
3544 | ||
3545 | out_restart: | |
3546 | /* things keep failing, better restart the hw */ | |
3547 | iwl_mvm_nic_restart(mvm, false); | |
3548 | ||
3549 | out: | |
3550 | mutex_unlock(&mvm->mutex); | |
3551 | ||
3552 | return ret; | |
3553 | } | |
3554 | ||
50cc9574 LC |
3555 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3556 | struct ieee80211_vif_chanctx_switch *vifs, | |
3557 | int n_vifs, | |
3558 | enum ieee80211_chanctx_switch_mode mode) | |
3559 | { | |
3560 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3561 | int ret; | |
3562 | ||
3563 | /* we only support a single-vif right now */ | |
3564 | if (n_vifs > 1) | |
3565 | return -EOPNOTSUPP; | |
3566 | ||
3567 | switch (mode) { | |
3568 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3569 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3570 | break; | |
3571 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3572 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3573 | break; |
3574 | default: | |
3575 | ret = -EOPNOTSUPP; | |
3576 | break; | |
3577 | } | |
3578 | ||
b08c1d97 LC |
3579 | return ret; |
3580 | } | |
3581 | ||
8ca151b5 JB |
3582 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3583 | struct ieee80211_sta *sta, | |
3584 | bool set) | |
3585 | { | |
3586 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3587 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3588 | |
3589 | if (!mvm_sta || !mvm_sta->vif) { | |
3590 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3591 | return -EINVAL; | |
3592 | } | |
3593 | ||
3594 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3595 | } | |
3596 | ||
507cadf2 DS |
3597 | #ifdef CONFIG_NL80211_TESTMODE |
3598 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3599 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3600 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3601 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3602 | }; |
3603 | ||
3604 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3605 | struct ieee80211_vif *vif, | |
3606 | void *data, int len) | |
3607 | { | |
3608 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3609 | int err; | |
3610 | u32 noa_duration; | |
3611 | ||
3612 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
3613 | if (err) | |
3614 | return err; | |
3615 | ||
3616 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3617 | return -EINVAL; | |
3618 | ||
3619 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3620 | case IWL_MVM_TM_CMD_SET_NOA: | |
3621 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3622 | !vif->bss_conf.enable_beacon || | |
3623 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3624 | return -EINVAL; | |
3625 | ||
3626 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3627 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3628 | return -EINVAL; | |
3629 | ||
3630 | mvm->noa_duration = noa_duration; | |
3631 | mvm->noa_vif = vif; | |
3632 | ||
7754ae79 | 3633 | return iwl_mvm_update_quotas(mvm, false, NULL); |
f6c6ad42 JB |
3634 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3635 | /* must be associated client vif - ignore authorized */ | |
3636 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3637 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3638 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3639 | return -EINVAL; | |
3640 | ||
3641 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3642 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3643 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3644 | } |
3645 | ||
3646 | return -EOPNOTSUPP; | |
3647 | } | |
3648 | ||
3649 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3650 | struct ieee80211_vif *vif, | |
3651 | void *data, int len) | |
3652 | { | |
3653 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3654 | int err; | |
3655 | ||
3656 | mutex_lock(&mvm->mutex); | |
3657 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3658 | mutex_unlock(&mvm->mutex); | |
3659 | ||
3660 | return err; | |
3661 | } | |
3662 | #endif | |
3663 | ||
622e3f9b LC |
3664 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3665 | struct ieee80211_vif *vif, | |
3666 | struct ieee80211_channel_switch *chsw) | |
3667 | { | |
3668 | /* By implementing this operation, we prevent mac80211 from | |
3669 | * starting its own channel switch timer, so that we can call | |
3670 | * ieee80211_chswitch_done() ourselves at the right time | |
3671 | * (which is when the absence time event starts). | |
3672 | */ | |
3673 | ||
3674 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3675 | "dummy channel switch op\n"); | |
3676 | } | |
3677 | ||
f028905c LC |
3678 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3679 | struct ieee80211_vif *vif, | |
3680 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3681 | { |
3682 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3683 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3684 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3685 | u32 apply_time; |
f028905c | 3686 | int ret; |
bd3398e2 AO |
3687 | |
3688 | mutex_lock(&mvm->mutex); | |
664322fa | 3689 | |
81d62d5a JB |
3690 | mvmvif->csa_failed = false; |
3691 | ||
6b20d774 | 3692 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3693 | chsw->chandef.center_freq1); |
6b20d774 | 3694 | |
21023b1e | 3695 | iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); |
f35d9c55 | 3696 | |
6b20d774 LC |
3697 | switch (vif->type) { |
3698 | case NL80211_IFTYPE_AP: | |
3699 | csa_vif = | |
3700 | rcu_dereference_protected(mvm->csa_vif, | |
3701 | lockdep_is_held(&mvm->mutex)); | |
3702 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3703 | "Another CSA is already in progress")) { | |
3704 | ret = -EBUSY; | |
3705 | goto out_unlock; | |
3706 | } | |
3707 | ||
3708 | rcu_assign_pointer(mvm->csa_vif, vif); | |
7ef0aab6 | 3709 | |
7ef0aab6 AO |
3710 | if (WARN_ONCE(mvmvif->csa_countdown, |
3711 | "Previous CSA countdown didn't complete")) { | |
3712 | ret = -EBUSY; | |
3713 | goto out_unlock; | |
3714 | } | |
3715 | ||
6b20d774 | 3716 | break; |
dc88b4ba | 3717 | case NL80211_IFTYPE_STATION: |
4500e133 LC |
3718 | /* Schedule the time event to a bit before beacon 1, |
3719 | * to make sure we're in the new channel when the | |
3720 | * GO/AP arrives. | |
3721 | */ | |
3722 | apply_time = chsw->device_timestamp + | |
3723 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3724 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3725 | |
3726 | if (chsw->block_tx) | |
3727 | iwl_mvm_csa_client_absent(mvm, vif); | |
3728 | ||
4500e133 | 3729 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3730 | apply_time); |
c6e0a3e0 LC |
3731 | if (mvmvif->bf_data.bf_enabled) { |
3732 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3733 | if (ret) | |
3734 | goto out_unlock; | |
3735 | } | |
3736 | ||
dc88b4ba | 3737 | break; |
6b20d774 LC |
3738 | default: |
3739 | break; | |
3740 | } | |
bd3398e2 | 3741 | |
f6c34820 LC |
3742 | mvmvif->ps_disabled = true; |
3743 | ||
3744 | ret = iwl_mvm_power_update_ps(mvm); | |
3745 | if (ret) | |
3746 | goto out_unlock; | |
f028905c | 3747 | |
e198f5e7 AN |
3748 | /* we won't be on this channel any longer */ |
3749 | iwl_mvm_teardown_tdls_peers(mvm); | |
3750 | ||
bd3398e2 AO |
3751 | out_unlock: |
3752 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3753 | |
3754 | return ret; | |
bd3398e2 AO |
3755 | } |
3756 | ||
f6c34820 LC |
3757 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3758 | struct ieee80211_vif *vif) | |
3759 | { | |
3760 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3761 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3762 | int ret; | |
3763 | ||
3764 | mutex_lock(&mvm->mutex); | |
3765 | ||
81d62d5a JB |
3766 | if (mvmvif->csa_failed) { |
3767 | mvmvif->csa_failed = false; | |
3768 | ret = -EIO; | |
3769 | goto out_unlock; | |
3770 | } | |
3771 | ||
a57c688d LC |
3772 | if (vif->type == NL80211_IFTYPE_STATION) { |
3773 | struct iwl_mvm_sta *mvmsta; | |
3774 | ||
3775 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3776 | mvmvif->ap_sta_id); | |
3777 | ||
3778 | if (WARN_ON(!mvmsta)) { | |
3779 | ret = -EIO; | |
3780 | goto out_unlock; | |
3781 | } | |
3782 | ||
3783 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
3784 | ||
3785 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
3786 | |
3787 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
3788 | if (ret) | |
3789 | goto out_unlock; | |
686e7fe1 LC |
3790 | |
3791 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
3792 | } |
3793 | ||
f6c34820 LC |
3794 | mvmvif->ps_disabled = false; |
3795 | ||
3796 | ret = iwl_mvm_power_update_ps(mvm); | |
3797 | ||
a57c688d | 3798 | out_unlock: |
f6c34820 LC |
3799 | mutex_unlock(&mvm->mutex); |
3800 | ||
3801 | return ret; | |
3802 | } | |
3803 | ||
c5b0e7c0 EG |
3804 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
3805 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
3806 | { | |
3807 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3808 | struct iwl_mvm_vif *mvmvif; | |
3809 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
3810 | struct ieee80211_sta *sta; |
3811 | int i; | |
3812 | u32 msk = 0; | |
c5b0e7c0 EG |
3813 | |
3814 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
3815 | return; | |
3816 | ||
3817 | mutex_lock(&mvm->mutex); | |
3818 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 3819 | |
a0f6bf2a AN |
3820 | /* flush the AP-station and all TDLS peers */ |
3821 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
3822 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
3823 | lockdep_is_held(&mvm->mutex)); | |
3824 | if (IS_ERR_OR_NULL(sta)) | |
3825 | continue; | |
3826 | ||
3827 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3828 | if (mvmsta->vif != vif) | |
3829 | continue; | |
3830 | ||
3831 | /* make sure only TDLS peers or the AP are flushed */ | |
3832 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
3833 | ||
3834 | msk |= mvmsta->tfd_queue_msk; | |
480acbce | 3835 | } |
c5b0e7c0 | 3836 | |
6d440b25 EG |
3837 | if (drop) { |
3838 | if (iwl_mvm_flush_tx_path(mvm, msk, true)) | |
3839 | IWL_ERR(mvm, "flush request fail\n"); | |
3840 | mutex_unlock(&mvm->mutex); | |
3841 | } else { | |
3842 | mutex_unlock(&mvm->mutex); | |
4e6c48e0 | 3843 | |
6d440b25 EG |
3844 | /* this can take a while, and we may need/want other operations |
3845 | * to succeed while doing this, so do it without the mutex held | |
3846 | */ | |
3847 | iwl_trans_wait_tx_queue_empty(mvm->trans, msk); | |
3848 | } | |
c5b0e7c0 EG |
3849 | } |
3850 | ||
91a8bcde JB |
3851 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
3852 | struct survey_info *survey) | |
3853 | { | |
3854 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3855 | int ret; | |
3856 | ||
3857 | memset(survey, 0, sizeof(*survey)); | |
3858 | ||
3859 | /* only support global statistics right now */ | |
3860 | if (idx != 0) | |
3861 | return -ENOENT; | |
3862 | ||
3863 | if (!(mvm->fw->ucode_capa.capa[0] & | |
3864 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
3865 | return -ENOENT; | |
3866 | ||
3867 | mutex_lock(&mvm->mutex); | |
3868 | ||
3869 | if (mvm->ucode_loaded) { | |
33cef925 | 3870 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
3871 | if (ret) |
3872 | goto out; | |
3873 | } | |
3874 | ||
3875 | survey->filled = SURVEY_INFO_TIME | | |
3876 | SURVEY_INFO_TIME_RX | | |
3877 | SURVEY_INFO_TIME_TX | | |
3878 | SURVEY_INFO_TIME_SCAN; | |
3879 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
3880 | mvm->radio_stats.on_time_rf; | |
3881 | do_div(survey->time, USEC_PER_MSEC); | |
3882 | ||
3883 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
3884 | mvm->radio_stats.rx_time; | |
3885 | do_div(survey->time_rx, USEC_PER_MSEC); | |
3886 | ||
3887 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
3888 | mvm->radio_stats.tx_time; | |
3889 | do_div(survey->time_tx, USEC_PER_MSEC); | |
3890 | ||
3891 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
3892 | mvm->radio_stats.on_time_scan; | |
3893 | do_div(survey->time_scan, USEC_PER_MSEC); | |
3894 | ||
10a7c028 | 3895 | ret = 0; |
91a8bcde JB |
3896 | out: |
3897 | mutex_unlock(&mvm->mutex); | |
3898 | return ret; | |
3899 | } | |
3900 | ||
33cef925 JB |
3901 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
3902 | struct ieee80211_vif *vif, | |
3903 | struct ieee80211_sta *sta, | |
3904 | struct station_info *sinfo) | |
3905 | { | |
3906 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3907 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3908 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3909 | ||
3910 | if (!(mvm->fw->ucode_capa.capa[0] & | |
3911 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
3912 | return; | |
3913 | ||
3914 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
3915 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
3916 | return; | |
3917 | ||
3918 | if (!vif->bss_conf.assoc) | |
3919 | return; | |
3920 | ||
3921 | mutex_lock(&mvm->mutex); | |
3922 | ||
3923 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
3924 | goto unlock; | |
3925 | ||
3926 | if (iwl_mvm_request_statistics(mvm, false)) | |
3927 | goto unlock; | |
3928 | ||
3929 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
3930 | mvmvif->beacon_stats.accu_num_beacons; | |
3931 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
3932 | if (mvmvif->beacon_stats.avg_signal) { | |
3933 | /* firmware only reports a value after RXing a few beacons */ | |
3934 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
3935 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
3936 | } | |
3937 | unlock: | |
3938 | mutex_unlock(&mvm->mutex); | |
3939 | } | |
3940 | ||
d42f5350 EG |
3941 | static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, |
3942 | struct ieee80211_vif *vif, | |
3943 | const struct ieee80211_event *event) | |
3944 | { | |
5d4f929e | 3945 | #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ |
d42f5350 EG |
3946 | do { \ |
3947 | if ((_cnt) && --(_cnt)) \ | |
3948 | break; \ | |
5d4f929e | 3949 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ |
d42f5350 EG |
3950 | } while (0) |
3951 | ||
3952 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3953 | struct iwl_fw_dbg_trigger_tlv *trig; | |
3954 | struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
d42f5350 EG |
3955 | |
3956 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) | |
3957 | return; | |
3958 | ||
3959 | if (event->u.mlme.status == MLME_SUCCESS) | |
3960 | return; | |
3961 | ||
3962 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); | |
3963 | trig_mlme = (void *)trig->data; | |
3964 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
3965 | return; | |
3966 | ||
d42f5350 EG |
3967 | if (event->u.mlme.data == ASSOC_EVENT) { |
3968 | if (event->u.mlme.status == MLME_DENIED) | |
3969 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3970 | trig_mlme->stop_assoc_denied, | |
3971 | "DENIED ASSOC: reason %d", | |
3972 | event->u.mlme.reason); | |
3973 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
3974 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3975 | trig_mlme->stop_assoc_timeout, | |
3976 | "ASSOC TIMEOUT"); | |
3977 | } else if (event->u.mlme.data == AUTH_EVENT) { | |
3978 | if (event->u.mlme.status == MLME_DENIED) | |
3979 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3980 | trig_mlme->stop_auth_denied, | |
3981 | "DENIED AUTH: reason %d", | |
3982 | event->u.mlme.reason); | |
3983 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
3984 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3985 | trig_mlme->stop_auth_timeout, | |
3986 | "AUTH TIMEOUT"); | |
3987 | } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { | |
3988 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3989 | trig_mlme->stop_rx_deauth, | |
3990 | "DEAUTH RX %d", event->u.mlme.reason); | |
3991 | } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { | |
3992 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
3993 | trig_mlme->stop_tx_deauth, | |
3994 | "DEAUTH TX %d", event->u.mlme.reason); | |
3995 | } | |
3996 | #undef CHECK_MLME_TRIGGER | |
3997 | } | |
3998 | ||
e5209263 | 3999 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
4000 | .tx = iwl_mvm_mac_tx, |
4001 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
4002 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 4003 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
4004 | .stop = iwl_mvm_mac_stop, |
4005 | .add_interface = iwl_mvm_mac_add_interface, | |
4006 | .remove_interface = iwl_mvm_mac_remove_interface, | |
4007 | .config = iwl_mvm_mac_config, | |
e59647ea | 4008 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
4009 | .configure_filter = iwl_mvm_configure_filter, |
4010 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
4011 | .hw_scan = iwl_mvm_mac_hw_scan, | |
4012 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 4013 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
4014 | .sta_state = iwl_mvm_mac_sta_state, |
4015 | .sta_notify = iwl_mvm_mac_sta_notify, | |
4016 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 4017 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 4018 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 4019 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
4020 | .conf_tx = iwl_mvm_mac_conf_tx, |
4021 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 4022 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 4023 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
4024 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
4025 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
4026 | .set_key = iwl_mvm_mac_set_key, |
4027 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
4028 | .remain_on_channel = iwl_mvm_roc, | |
4029 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
4030 | .add_chanctx = iwl_mvm_add_chanctx, |
4031 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
4032 | .change_chanctx = iwl_mvm_change_chanctx, | |
4033 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
4034 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 4035 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 4036 | |
5023d966 JB |
4037 | .start_ap = iwl_mvm_start_ap_ibss, |
4038 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
4039 | .join_ibss = iwl_mvm_start_ap_ibss, | |
4040 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
4041 | |
4042 | .set_tim = iwl_mvm_set_tim, | |
4043 | ||
622e3f9b | 4044 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 4045 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 4046 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 4047 | |
1d3c3f63 AN |
4048 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
4049 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
4050 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
4051 | ||
d42f5350 EG |
4052 | .event_callback = iwl_mvm_mac_event_callback, |
4053 | ||
507cadf2 DS |
4054 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
4055 | ||
8ca151b5 JB |
4056 | #ifdef CONFIG_PM_SLEEP |
4057 | /* look at d3.c */ | |
4058 | .suspend = iwl_mvm_suspend, | |
4059 | .resume = iwl_mvm_resume, | |
4060 | .set_wakeup = iwl_mvm_set_wakeup, | |
4061 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
4062 | #if IS_ENABLED(CONFIG_IPV6) | |
4063 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
4064 | #endif | |
4065 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
4066 | #endif | |
91a8bcde | 4067 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 4068 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
8ca151b5 | 4069 | }; |