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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; | |
382 | const struct ieee80211_regdomain *r = | |
383 | rtnl_dereference(mvm->hw->wiphy->regd); | |
384 | ||
385 | if (!r) | |
386 | return 0; | |
387 | ||
388 | /* save the last source in case we overwrite it below */ | |
389 | used_src = mvm->mcc_src; | |
390 | if (iwl_mvm_is_wifi_mcc_supported(mvm)) { | |
391 | /* Notify the firmware we support wifi location updates */ | |
47c8b154 | 392 | regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
8ba2d7a1 EH |
393 | if (!IS_ERR_OR_NULL(regd)) |
394 | kfree(regd); | |
395 | } | |
396 | ||
397 | /* Now set our last stored MCC and source */ | |
47c8b154 | 398 | regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, NULL); |
8ba2d7a1 EH |
399 | if (IS_ERR_OR_NULL(regd)) |
400 | return -EIO; | |
401 | ||
402 | regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); | |
403 | kfree(regd); | |
404 | ||
405 | return 0; | |
406 | } | |
407 | ||
8ca151b5 JB |
408 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
409 | { | |
410 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 411 | int num_mac, ret, i; |
8ca151b5 JB |
412 | |
413 | /* Tell mac80211 our characteristics */ | |
414 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
415 | IEEE80211_HW_SPECTRUM_MGMT | | |
416 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
417 | IEEE80211_HW_QUEUE_CONTROL | | |
418 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
419 | IEEE80211_HW_SUPPORTS_PS | |
420 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 421 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 422 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be | 423 | IEEE80211_HW_CONNECTION_MONITOR | |
b71d9c8a IY |
424 | IEEE80211_HW_CHANCTX_STA_CSA | |
425 | IEEE80211_HW_SUPPORTS_CLONED_SKBS; | |
8ca151b5 | 426 | |
19e737c9 | 427 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 428 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
429 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
430 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
339b3086 ES |
431 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
432 | IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; | |
8ca151b5 | 433 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
848955cc JB |
434 | hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
435 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 JB |
436 | |
437 | /* | |
438 | * Enable 11w if advertised by firmware and software crypto | |
439 | * is not enabled (as the firmware will interpret some mgmt | |
440 | * packets, so enabling it with software crypto isn't safe) | |
441 | */ | |
442 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
443 | !iwlwifi_mod_params.sw_crypto) | |
444 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
445 | ||
1f940386 LC |
446 | hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS; |
447 | hw->wiphy->features |= | |
448 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
449 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR; | |
fb98be5e | 450 | |
8ca151b5 JB |
451 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
452 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 453 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
454 | |
455 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
456 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
457 | BIT(NL80211_IFTYPE_AP) | | |
458 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
459 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
460 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 461 | |
a2f73b6c | 462 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
463 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
464 | if (iwl_mvm_is_lar_supported(mvm)) | |
465 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
466 | else | |
467 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
468 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 469 | |
3e56eadf JB |
470 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
471 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
472 | ||
94bbed72 | 473 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 474 | |
8ca151b5 JB |
475 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
476 | hw->wiphy->n_iface_combinations = | |
477 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
478 | ||
c451e6d4 | 479 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 480 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
481 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
482 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
483 | |
484 | /* Extract MAC address */ | |
485 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
486 | hw->wiphy->addresses = mvm->addresses; | |
487 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
488 | |
489 | /* Extract additional MAC addresses if available */ | |
490 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
491 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
492 | ||
493 | for (i = 1; i < num_mac; i++) { | |
494 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 495 | ETH_ALEN); |
831e85f3 | 496 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
497 | hw->wiphy->n_addresses++; |
498 | } | |
499 | ||
fe0f2de3 IP |
500 | iwl_mvm_reset_phy_ctxts(mvm); |
501 | ||
48849a41 | 502 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false); |
20f1a5de | 503 | |
8ca151b5 JB |
504 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
505 | ||
506 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) | |
507 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
508 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
3d44eebf | 509 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { |
8ca151b5 JB |
510 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
511 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
512 | ||
3d44eebf ES |
513 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER) |
514 | hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= | |
515 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; | |
516 | } | |
517 | ||
8ca151b5 JB |
518 | hw->wiphy->hw_version = mvm->trans->hw_id; |
519 | ||
ade50652 | 520 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
521 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
522 | else | |
523 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
524 | ||
6efaaf33 EG |
525 | if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) { |
526 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; | |
527 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
528 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
529 | /* we create the 802.11 header and zero length SSID IE. */ | |
530 | hw->wiphy->max_sched_scan_ie_len = | |
531 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
532 | } | |
35a000b7 | 533 | |
8ca151b5 | 534 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 535 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 EP |
536 | NL80211_FEATURE_P2P_GO_OPPPS | |
537 | NL80211_FEATURE_DYNAMIC_SMPS | | |
9b5452fd EG |
538 | NL80211_FEATURE_STATIC_SMPS | |
539 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 540 | |
f1daa00e AO |
541 | if (mvm->fw->ucode_capa.capa[0] & |
542 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT) | |
543 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; | |
226bcd48 AK |
544 | if (mvm->fw->ucode_capa.capa[0] & |
545 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT) | |
546 | hw->wiphy->features |= NL80211_FEATURE_QUIET; | |
f1daa00e | 547 | |
73897bd1 AO |
548 | if (mvm->fw->ucode_capa.capa[0] & |
549 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT) | |
550 | hw->wiphy->features |= | |
551 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
552 | ||
553 | if (mvm->fw->ucode_capa.capa[0] & | |
554 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT) | |
555 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; | |
556 | ||
8ca151b5 JB |
557 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
558 | ||
e36e5433 | 559 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 560 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 561 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 562 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
563 | } |
564 | ||
8ca151b5 | 565 | #ifdef CONFIG_PM_SLEEP |
d15a747f EP |
566 | if (iwl_mvm_is_d0i3_supported(mvm) && |
567 | device_can_wakeup(mvm->trans->dev)) { | |
568 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
569 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
570 | } |
571 | ||
572 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
573 | mvm->trans->ops->d3_suspend && |
574 | mvm->trans->ops->d3_resume && | |
575 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
576 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
577 | WIPHY_WOWLAN_DISCONNECT | | |
578 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
579 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
580 | WIPHY_WOWLAN_NET_DETECT; | |
8ca151b5 | 581 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
582 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
583 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
584 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
585 | ||
586 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
587 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
588 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 589 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 JB |
590 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
591 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
592 | } |
593 | #endif | |
594 | ||
77736923 EP |
595 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
596 | /* assign default bcast filtering configuration */ | |
597 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
598 | #endif | |
599 | ||
8ca151b5 JB |
600 | ret = iwl_mvm_leds_init(mvm); |
601 | if (ret) | |
602 | return ret; | |
603 | ||
d8f1c515 AN |
604 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) { |
605 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); | |
606 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
607 | } | |
608 | ||
1d3c3f63 AN |
609 | if (mvm->fw->ucode_capa.capa[0] & |
610 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) { | |
611 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); | |
612 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
613 | } | |
614 | ||
b7327d89 EG |
615 | ret = ieee80211_register_hw(mvm->hw); |
616 | if (ret) | |
617 | iwl_mvm_leds_exit(mvm); | |
618 | ||
619 | return ret; | |
8ca151b5 JB |
620 | } |
621 | ||
b2492501 AN |
622 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
623 | struct ieee80211_sta *sta, | |
624 | struct sk_buff *skb) | |
625 | { | |
626 | struct iwl_mvm_sta *mvmsta; | |
627 | bool defer = false; | |
628 | ||
629 | /* | |
630 | * double check the IN_D0I3 flag both before and after | |
631 | * taking the spinlock, in order to prevent taking | |
632 | * the spinlock when not needed. | |
633 | */ | |
634 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
635 | return false; | |
636 | ||
637 | spin_lock(&mvm->d0i3_tx_lock); | |
638 | /* | |
639 | * testing the flag again ensures the skb dequeue | |
640 | * loop (on d0i3 exit) hasn't run yet. | |
641 | */ | |
642 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
643 | goto out; | |
644 | ||
645 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
646 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
647 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
648 | goto out; | |
649 | ||
650 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
651 | ieee80211_stop_queues(mvm->hw); | |
652 | ||
653 | /* trigger wakeup */ | |
654 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
655 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
656 | ||
657 | defer = true; | |
658 | out: | |
659 | spin_unlock(&mvm->d0i3_tx_lock); | |
660 | return defer; | |
661 | } | |
662 | ||
8ca151b5 JB |
663 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
664 | struct ieee80211_tx_control *control, | |
665 | struct sk_buff *skb) | |
666 | { | |
667 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
668 | struct ieee80211_sta *sta = control->sta; |
669 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
670 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 671 | |
9ee718aa EL |
672 | if (iwl_mvm_is_radio_killed(mvm)) { |
673 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
674 | goto drop; |
675 | } | |
676 | ||
398e8c6c | 677 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
678 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
679 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
680 | goto drop; |
681 | ||
3e56eadf JB |
682 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
683 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
684 | ieee80211_is_mgmt(hdr->frame_control) && | |
685 | !ieee80211_is_deauth(hdr->frame_control) && | |
686 | !ieee80211_is_disassoc(hdr->frame_control) && | |
687 | !ieee80211_is_action(hdr->frame_control))) | |
688 | sta = NULL; | |
689 | ||
690 | if (sta) { | |
b2492501 AN |
691 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
692 | return; | |
3e56eadf | 693 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
694 | goto drop; |
695 | return; | |
696 | } | |
697 | ||
698 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
699 | goto drop; | |
700 | return; | |
701 | drop: | |
702 | ieee80211_free_txskb(hw, skb); | |
703 | } | |
704 | ||
205e2210 EG |
705 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
706 | { | |
707 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
708 | return false; | |
709 | return true; | |
710 | } | |
711 | ||
712 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
713 | { | |
714 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
715 | return false; | |
716 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
717 | return true; | |
718 | ||
719 | /* enabled by default */ | |
720 | return true; | |
721 | } | |
722 | ||
8ca151b5 JB |
723 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
724 | struct ieee80211_vif *vif, | |
725 | enum ieee80211_ampdu_mlme_action action, | |
726 | struct ieee80211_sta *sta, u16 tid, | |
727 | u16 *ssn, u8 buf_size) | |
728 | { | |
729 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
730 | int ret; | |
b2492501 | 731 | bool tx_agg_ref = false; |
8ca151b5 JB |
732 | |
733 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
734 | sta->addr, tid, action); | |
735 | ||
736 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
737 | return -EACCES; | |
738 | ||
b2492501 | 739 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
740 | switch (action) { |
741 | case IEEE80211_AMPDU_TX_START: | |
742 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
743 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
744 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
745 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 746 | /* |
9256c205 EP |
747 | * for tx start, wait synchronously until D0i3 exit to |
748 | * get the correct sequence number for the tid. | |
749 | * additionally, some other ampdu actions use direct | |
750 | * target access, which is not handled automatically | |
751 | * by the trans layer (unlike commands), so wait for | |
752 | * d0i3 exit in these cases as well. | |
b2492501 | 753 | */ |
d40fc489 GG |
754 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
755 | if (ret) | |
756 | return ret; | |
757 | ||
758 | tx_agg_ref = true; | |
9256c205 EP |
759 | break; |
760 | default: | |
761 | break; | |
b2492501 AN |
762 | } |
763 | ||
8ca151b5 JB |
764 | mutex_lock(&mvm->mutex); |
765 | ||
766 | switch (action) { | |
767 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 768 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
769 | ret = -EINVAL; |
770 | break; | |
771 | } | |
772 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
773 | break; | |
774 | case IEEE80211_AMPDU_RX_STOP: | |
775 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
776 | break; | |
777 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 778 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
779 | ret = -EINVAL; |
780 | break; | |
781 | } | |
8ca151b5 JB |
782 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
783 | break; | |
784 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
785 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
786 | break; | |
8ca151b5 JB |
787 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
788 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 789 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
790 | break; |
791 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
792 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
793 | break; | |
794 | default: | |
795 | WARN_ON_ONCE(1); | |
796 | ret = -EINVAL; | |
797 | break; | |
798 | } | |
799 | mutex_unlock(&mvm->mutex); | |
800 | ||
b2492501 AN |
801 | /* |
802 | * If the tid is marked as started, we won't use it for offloaded | |
803 | * traffic on the next D0i3 entry. It's safe to unref. | |
804 | */ | |
805 | if (tx_agg_ref) | |
806 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
807 | ||
8ca151b5 JB |
808 | return ret; |
809 | } | |
810 | ||
811 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
812 | struct ieee80211_vif *vif) | |
813 | { | |
814 | struct iwl_mvm *mvm = data; | |
815 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
816 | ||
817 | mvmvif->uploaded = false; | |
818 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
819 | ||
8ca151b5 JB |
820 | spin_lock_bh(&mvm->time_event_lock); |
821 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
822 | spin_unlock_bh(&mvm->time_event_lock); | |
823 | ||
fe0f2de3 | 824 | mvmvif->phy_ctxt = NULL; |
8a275bad | 825 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
826 | } |
827 | ||
aadede6e JB |
828 | static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count, |
829 | const void *data, size_t datalen) | |
830 | { | |
831 | const struct iwl_mvm_dump_ptrs *dump_ptrs = data; | |
832 | ssize_t bytes_read; | |
833 | ssize_t bytes_read_trans; | |
834 | ||
835 | if (offset < dump_ptrs->op_mode_len) { | |
836 | bytes_read = min_t(ssize_t, count, | |
837 | dump_ptrs->op_mode_len - offset); | |
838 | memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset, | |
839 | bytes_read); | |
840 | offset += bytes_read; | |
841 | count -= bytes_read; | |
842 | ||
843 | if (count == 0) | |
844 | return bytes_read; | |
845 | } else { | |
846 | bytes_read = 0; | |
847 | } | |
848 | ||
849 | if (!dump_ptrs->trans_ptr) | |
850 | return bytes_read; | |
851 | ||
852 | offset -= dump_ptrs->op_mode_len; | |
853 | bytes_read_trans = min_t(ssize_t, count, | |
854 | dump_ptrs->trans_ptr->len - offset); | |
855 | memcpy(buffer + bytes_read, | |
856 | (u8 *)dump_ptrs->trans_ptr->data + offset, | |
857 | bytes_read_trans); | |
858 | ||
859 | return bytes_read + bytes_read_trans; | |
860 | } | |
861 | ||
862 | static void iwl_mvm_free_coredump(const void *data) | |
863 | { | |
864 | const struct iwl_mvm_dump_ptrs *fw_error_dump = data; | |
865 | ||
866 | vfree(fw_error_dump->op_mode_ptr); | |
867 | vfree(fw_error_dump->trans_ptr); | |
868 | kfree(fw_error_dump); | |
869 | } | |
870 | ||
04fd2c28 LK |
871 | static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm, |
872 | struct iwl_fw_error_dump_data **dump_data) | |
873 | { | |
874 | struct iwl_fw_error_dump_fifo *fifo_hdr; | |
875 | u32 *fifo_data; | |
876 | u32 fifo_len; | |
877 | unsigned long flags; | |
878 | int i, j; | |
879 | ||
880 | if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags)) | |
881 | return; | |
882 | ||
883 | /* Pull RXF data from all RXFs */ | |
884 | for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) { | |
885 | /* | |
886 | * Keep aside the additional offset that might be needed for | |
887 | * next RXF | |
888 | */ | |
889 | u32 offset_diff = RXF_DIFF_FROM_PREV * i; | |
890 | ||
891 | fifo_hdr = (void *)(*dump_data)->data; | |
892 | fifo_data = (void *)fifo_hdr->data; | |
893 | fifo_len = mvm->shared_mem_cfg.rxfifo_size[i]; | |
894 | ||
895 | /* No need to try to read the data if the length is 0 */ | |
896 | if (fifo_len == 0) | |
897 | continue; | |
898 | ||
899 | /* Add a TLV for the RXF */ | |
900 | (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF); | |
901 | (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); | |
902 | ||
903 | fifo_hdr->fifo_num = cpu_to_le32(i); | |
904 | fifo_hdr->available_bytes = | |
905 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
906 | RXF_RD_D_SPACE + | |
907 | offset_diff)); | |
908 | fifo_hdr->wr_ptr = | |
909 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
910 | RXF_RD_WR_PTR + | |
911 | offset_diff)); | |
912 | fifo_hdr->rd_ptr = | |
913 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
914 | RXF_RD_RD_PTR + | |
915 | offset_diff)); | |
916 | fifo_hdr->fence_ptr = | |
917 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
918 | RXF_RD_FENCE_PTR + | |
919 | offset_diff)); | |
920 | fifo_hdr->fence_mode = | |
921 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
922 | RXF_SET_FENCE_MODE + | |
923 | offset_diff)); | |
924 | ||
925 | /* Lock fence */ | |
926 | iwl_trans_write_prph(mvm->trans, | |
927 | RXF_SET_FENCE_MODE + offset_diff, 0x1); | |
928 | /* Set fence pointer to the same place like WR pointer */ | |
929 | iwl_trans_write_prph(mvm->trans, | |
930 | RXF_LD_WR2FENCE + offset_diff, 0x1); | |
931 | /* Set fence offset */ | |
932 | iwl_trans_write_prph(mvm->trans, | |
933 | RXF_LD_FENCE_OFFSET_ADDR + offset_diff, | |
934 | 0x0); | |
935 | ||
936 | /* Read FIFO */ | |
937 | fifo_len /= sizeof(u32); /* Size in DWORDS */ | |
938 | for (j = 0; j < fifo_len; j++) | |
939 | fifo_data[j] = iwl_trans_read_prph(mvm->trans, | |
940 | RXF_FIFO_RD_FENCE_INC + | |
941 | offset_diff); | |
942 | *dump_data = iwl_fw_error_next_data(*dump_data); | |
943 | } | |
944 | ||
945 | /* Pull TXF data from all TXFs */ | |
946 | for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) { | |
947 | /* Mark the number of TXF we're pulling now */ | |
948 | iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i); | |
949 | ||
950 | fifo_hdr = (void *)(*dump_data)->data; | |
951 | fifo_data = (void *)fifo_hdr->data; | |
952 | fifo_len = mvm->shared_mem_cfg.txfifo_size[i]; | |
953 | ||
954 | /* No need to try to read the data if the length is 0 */ | |
955 | if (fifo_len == 0) | |
956 | continue; | |
957 | ||
958 | /* Add a TLV for the FIFO */ | |
959 | (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF); | |
960 | (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); | |
961 | ||
962 | fifo_hdr->fifo_num = cpu_to_le32(i); | |
963 | fifo_hdr->available_bytes = | |
964 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
965 | TXF_FIFO_ITEM_CNT)); | |
966 | fifo_hdr->wr_ptr = | |
967 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
968 | TXF_WR_PTR)); | |
969 | fifo_hdr->rd_ptr = | |
970 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
971 | TXF_RD_PTR)); | |
972 | fifo_hdr->fence_ptr = | |
973 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
974 | TXF_FENCE_PTR)); | |
975 | fifo_hdr->fence_mode = | |
976 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
977 | TXF_LOCK_FENCE)); | |
978 | ||
979 | /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */ | |
980 | iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR, | |
981 | TXF_WR_PTR); | |
982 | ||
983 | /* Dummy-read to advance the read pointer to the head */ | |
984 | iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA); | |
985 | ||
986 | /* Read FIFO */ | |
987 | fifo_len /= sizeof(u32); /* Size in DWORDS */ | |
988 | for (j = 0; j < fifo_len; j++) | |
989 | fifo_data[j] = iwl_trans_read_prph(mvm->trans, | |
990 | TXF_READ_MODIFY_DATA); | |
991 | *dump_data = iwl_fw_error_next_data(*dump_data); | |
992 | } | |
993 | ||
994 | iwl_trans_release_nic_access(mvm->trans, &flags); | |
995 | } | |
996 | ||
b6eaa45a EG |
997 | void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm) |
998 | { | |
999 | if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert || | |
1000 | !mvm->fw_dump_desc) | |
1001 | return; | |
1002 | ||
1003 | kfree(mvm->fw_dump_desc); | |
1004 | mvm->fw_dump_desc = NULL; | |
1005 | } | |
1006 | ||
4bfa47f3 | 1007 | void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) |
655e6d6d EG |
1008 | { |
1009 | struct iwl_fw_error_dump_file *dump_file; | |
1010 | struct iwl_fw_error_dump_data *dump_data; | |
1011 | struct iwl_fw_error_dump_info *dump_info; | |
a549b296 | 1012 | struct iwl_fw_error_dump_mem *dump_mem; |
b6eaa45a | 1013 | struct iwl_fw_error_dump_trigger_desc *dump_trig; |
48eb7b34 | 1014 | struct iwl_mvm_dump_ptrs *fw_error_dump; |
655e6d6d | 1015 | u32 sram_len, sram_ofs; |
04fd2c28 | 1016 | u32 file_len, fifo_data_len = 0; |
addfaada | 1017 | u32 smem_len = mvm->cfg->smem_len; |
86138324 | 1018 | u32 sram2_len = mvm->cfg->dccm2_len; |
655e6d6d EG |
1019 | |
1020 | lockdep_assert_held(&mvm->mutex); | |
1021 | ||
addfaada | 1022 | /* W/A for 8000 HW family A-step */ |
86138324 IY |
1023 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && |
1024 | CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) { | |
1025 | if (smem_len) | |
1026 | smem_len = 0x38000; | |
1027 | ||
1028 | if (sram2_len) | |
1029 | sram2_len = 0x10000; | |
1030 | } | |
addfaada | 1031 | |
aadede6e | 1032 | fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL); |
48eb7b34 EG |
1033 | if (!fw_error_dump) |
1034 | return; | |
1035 | ||
f53bf4c7 LK |
1036 | /* SRAM - include stack CCM if driver knows the values for it */ |
1037 | if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) { | |
1038 | const struct fw_img *img; | |
1039 | ||
1040 | img = &mvm->fw->img[mvm->cur_ucode]; | |
1041 | sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
1042 | sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
1043 | } else { | |
1044 | sram_ofs = mvm->cfg->dccm_offset; | |
1045 | sram_len = mvm->cfg->dccm_len; | |
1046 | } | |
655e6d6d | 1047 | |
04fd2c28 LK |
1048 | /* reading RXF/TXF sizes */ |
1049 | if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) { | |
1050 | struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg; | |
1051 | int i; | |
1052 | ||
1053 | fifo_data_len = 0; | |
1054 | ||
1055 | /* Count RXF size */ | |
1056 | for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) { | |
1057 | if (!mem_cfg->rxfifo_size[i]) | |
1058 | continue; | |
1059 | ||
1060 | /* Add header info */ | |
1061 | fifo_data_len += mem_cfg->rxfifo_size[i] + | |
1062 | sizeof(*dump_data) + | |
1063 | sizeof(struct iwl_fw_error_dump_fifo); | |
1064 | } | |
1065 | ||
1066 | for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) { | |
1067 | if (!mem_cfg->txfifo_size[i]) | |
1068 | continue; | |
655e6d6d | 1069 | |
04fd2c28 LK |
1070 | /* Add header info */ |
1071 | fifo_data_len += mem_cfg->txfifo_size[i] + | |
1072 | sizeof(*dump_data) + | |
1073 | sizeof(struct iwl_fw_error_dump_fifo); | |
1074 | } | |
1075 | } | |
655e6d6d EG |
1076 | |
1077 | file_len = sizeof(*dump_file) + | |
04fd2c28 | 1078 | sizeof(*dump_data) * 2 + |
a549b296 | 1079 | sram_len + sizeof(*dump_mem) + |
04fd2c28 | 1080 | fifo_data_len + |
655e6d6d EG |
1081 | sizeof(*dump_info); |
1082 | ||
b6eaa45a EG |
1083 | if (mvm->fw_dump_desc) |
1084 | file_len += sizeof(*dump_data) + sizeof(*dump_trig) + | |
1085 | mvm->fw_dump_desc->len; | |
1086 | ||
addfaada LK |
1087 | /* Make room for the SMEM, if it exists */ |
1088 | if (smem_len) | |
a549b296 | 1089 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len; |
addfaada | 1090 | |
86138324 IY |
1091 | /* Make room for the secondary SRAM, if it exists */ |
1092 | if (sram2_len) | |
1093 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len; | |
1094 | ||
5bfe6f53 | 1095 | dump_file = vzalloc(file_len); |
48eb7b34 EG |
1096 | if (!dump_file) { |
1097 | kfree(fw_error_dump); | |
b6eaa45a | 1098 | iwl_mvm_free_fw_dump_desc(mvm); |
655e6d6d | 1099 | return; |
48eb7b34 | 1100 | } |
655e6d6d | 1101 | |
48eb7b34 | 1102 | fw_error_dump->op_mode_ptr = dump_file; |
655e6d6d EG |
1103 | |
1104 | dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER); | |
655e6d6d EG |
1105 | dump_data = (void *)dump_file->data; |
1106 | ||
1107 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO); | |
1108 | dump_data->len = cpu_to_le32(sizeof(*dump_info)); | |
1109 | dump_info = (void *) dump_data->data; | |
1110 | dump_info->device_family = | |
1111 | mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ? | |
1112 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) : | |
1113 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8); | |
435da2ce | 1114 | dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev)); |
655e6d6d EG |
1115 | memcpy(dump_info->fw_human_readable, mvm->fw->human_readable, |
1116 | sizeof(dump_info->fw_human_readable)); | |
1117 | strncpy(dump_info->dev_human_readable, mvm->cfg->name, | |
1118 | sizeof(dump_info->dev_human_readable)); | |
1119 | strncpy(dump_info->bus_human_readable, mvm->dev->bus->name, | |
1120 | sizeof(dump_info->bus_human_readable)); | |
1121 | ||
1122 | dump_data = iwl_fw_error_next_data(dump_data); | |
04fd2c28 LK |
1123 | /* We only dump the FIFOs if the FW is in error state */ |
1124 | if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) | |
1125 | iwl_mvm_dump_fifos(mvm, &dump_data); | |
655e6d6d | 1126 | |
b6eaa45a EG |
1127 | if (mvm->fw_dump_desc) { |
1128 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO); | |
1129 | dump_data->len = cpu_to_le32(sizeof(*dump_trig) + | |
1130 | mvm->fw_dump_desc->len); | |
1131 | dump_trig = (void *)dump_data->data; | |
1132 | memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc, | |
1133 | sizeof(*dump_trig) + mvm->fw_dump_desc->len); | |
1134 | ||
1135 | /* now we can free this copy */ | |
1136 | iwl_mvm_free_fw_dump_desc(mvm); | |
1137 | dump_data = iwl_fw_error_next_data(dump_data); | |
1138 | } | |
1139 | ||
a549b296 EG |
1140 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); |
1141 | dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem)); | |
1142 | dump_mem = (void *)dump_data->data; | |
1143 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1144 | dump_mem->offset = cpu_to_le32(sram_ofs); | |
1145 | iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data, | |
655e6d6d EG |
1146 | sram_len); |
1147 | ||
addfaada LK |
1148 | if (smem_len) { |
1149 | dump_data = iwl_fw_error_next_data(dump_data); | |
e06d8437 EG |
1150 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); |
1151 | dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem)); | |
1152 | dump_mem = (void *)dump_data->data; | |
1153 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM); | |
1154 | dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset); | |
addfaada | 1155 | iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset, |
e06d8437 | 1156 | dump_mem->data, smem_len); |
addfaada LK |
1157 | } |
1158 | ||
86138324 IY |
1159 | if (sram2_len) { |
1160 | dump_data = iwl_fw_error_next_data(dump_data); | |
1161 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); | |
1162 | dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem)); | |
1163 | dump_mem = (void *)dump_data->data; | |
1164 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1165 | dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset); | |
1166 | iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset, | |
1167 | dump_mem->data, sram2_len); | |
1168 | } | |
1169 | ||
48eb7b34 EG |
1170 | fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans); |
1171 | fw_error_dump->op_mode_len = file_len; | |
1172 | if (fw_error_dump->trans_ptr) | |
1173 | file_len += fw_error_dump->trans_ptr->len; | |
1174 | dump_file->file_len = cpu_to_le32(file_len); | |
4bfa47f3 | 1175 | |
aadede6e JB |
1176 | dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0, |
1177 | GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump); | |
d2709ad7 EG |
1178 | |
1179 | clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status); | |
655e6d6d | 1180 | } |
655e6d6d | 1181 | |
b6eaa45a EG |
1182 | struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = { |
1183 | .trig_desc = { | |
1184 | .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT), | |
1185 | }, | |
1186 | }; | |
1187 | ||
8ca151b5 JB |
1188 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) |
1189 | { | |
58629d9d JB |
1190 | /* clear the D3 reconfig, we only need it to avoid dumping a |
1191 | * firmware coredump on reconfiguration, we shouldn't do that | |
1192 | * on D3->D0 transition | |
1193 | */ | |
b6eaa45a EG |
1194 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
1195 | mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; | |
58629d9d | 1196 | iwl_mvm_fw_error_dump(mvm); |
b6eaa45a | 1197 | } |
1bd3cbc1 | 1198 | |
744cb695 EP |
1199 | /* cleanup all stale references (scan, roc), but keep the |
1200 | * ucode_down ref until reconfig is complete | |
1201 | */ | |
1202 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1203 | ||
8ca151b5 | 1204 | iwl_trans_stop_device(mvm->trans); |
8ca151b5 JB |
1205 | |
1206 | mvm->scan_status = IWL_MVM_SCAN_NONE; | |
b1873300 | 1207 | mvm->ps_disabled = false; |
31b8b343 | 1208 | mvm->calibrating = false; |
8ca151b5 JB |
1209 | |
1210 | /* just in case one was running */ | |
1211 | ieee80211_remain_on_channel_expired(mvm->hw); | |
1212 | ||
1213 | ieee80211_iterate_active_interfaces_atomic( | |
1214 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
1215 | iwl_mvm_cleanup_iterator, mvm); | |
1216 | ||
fe0f2de3 | 1217 | mvm->p2p_device_vif = NULL; |
37577fe2 | 1218 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
1219 | |
1220 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 JB |
1221 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
1222 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); | |
a0f6bf2a | 1223 | memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
8a275bad EG |
1224 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
1225 | memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); | |
1226 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); | |
1227 | memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); | |
1228 | memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); | |
1229 | memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); | |
8ca151b5 JB |
1230 | |
1231 | ieee80211_wake_queues(mvm->hw); | |
1232 | ||
228670b2 EP |
1233 | /* clear any stale d0i3 state */ |
1234 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1235 | ||
8ca151b5 | 1236 | mvm->vif_count = 0; |
113a0447 | 1237 | mvm->rx_ba_sessions = 0; |
d2709ad7 | 1238 | mvm->fw_dbg_conf = FW_DBG_INVALID; |
91a8bcde JB |
1239 | |
1240 | /* keep statistics ticking */ | |
1241 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1242 | } |
1243 | ||
a0a09243 | 1244 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1245 | { |
8ca151b5 JB |
1246 | int ret; |
1247 | ||
a0a09243 | 1248 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 JB |
1249 | |
1250 | /* Clean up some internal and mac80211 state on restart */ | |
1251 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1252 | iwl_mvm_restart_cleanup(mvm); | |
1253 | ||
1254 | ret = iwl_mvm_up(mvm); | |
c47af22a JB |
1255 | |
1256 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1257 | /* Something went wrong - we need to finish some cleanup | |
1258 | * that normally iwl_mvm_mac_restart_complete() below | |
1259 | * would do. | |
1260 | */ | |
1261 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1262 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1263 | } | |
1264 | ||
a0a09243 LC |
1265 | return ret; |
1266 | } | |
1267 | ||
1268 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1269 | { | |
1270 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1271 | int ret; | |
1272 | ||
37948fcf EP |
1273 | /* Some hw restart cleanups must not hold the mutex */ |
1274 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1275 | /* | |
1276 | * Make sure we are out of d0i3. This is needed | |
1277 | * to make sure the reference accounting is correct | |
1278 | * (and there is no stale d0i3_exit_work). | |
1279 | */ | |
1280 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1281 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1282 | &mvm->status), | |
1283 | HZ); | |
1284 | } | |
1285 | ||
a0a09243 LC |
1286 | mutex_lock(&mvm->mutex); |
1287 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1288 | mutex_unlock(&mvm->mutex); |
1289 | ||
1290 | return ret; | |
1291 | } | |
1292 | ||
cf2c92d8 | 1293 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1294 | { |
8ca151b5 JB |
1295 | int ret; |
1296 | ||
1297 | mutex_lock(&mvm->mutex); | |
1298 | ||
1299 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1300 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
0166230c | 1301 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
1302 | if (ret) |
1303 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1304 | ret); | |
1305 | ||
7498cf4c EP |
1306 | /* allow transport/FW low power modes */ |
1307 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1308 | ||
cbd2ae2d AN |
1309 | /* |
1310 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1311 | * of packets the FW sent out, so we must reconnect. | |
1312 | */ | |
1313 | iwl_mvm_teardown_tdls_peers(mvm); | |
1314 | ||
8ca151b5 JB |
1315 | mutex_unlock(&mvm->mutex); |
1316 | } | |
1317 | ||
088070a2 EP |
1318 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1319 | { | |
1320 | bool exit_now; | |
1321 | ||
1322 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
1323 | return; | |
1324 | ||
1325 | mutex_lock(&mvm->d0i3_suspend_mutex); | |
1326 | __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
1327 | exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP, | |
1328 | &mvm->d0i3_suspend_flags); | |
1329 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1330 | ||
1331 | if (exit_now) { | |
1332 | IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n"); | |
1333 | _iwl_mvm_exit_d0i3(mvm); | |
1334 | } | |
6735943f EP |
1335 | |
1336 | if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) | |
1337 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1338 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1339 | &mvm->status), | |
1340 | HZ)) | |
1341 | WARN_ONCE(1, "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1342 | } |
1343 | ||
cf2c92d8 EP |
1344 | static void |
1345 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1346 | enum ieee80211_reconfig_type reconfig_type) | |
1347 | { | |
1348 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1349 | ||
1350 | switch (reconfig_type) { | |
1351 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1352 | iwl_mvm_restart_complete(mvm); | |
1353 | break; | |
1354 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1355 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1356 | break; |
1357 | } | |
1358 | } | |
1359 | ||
a0a09243 | 1360 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1361 | { |
a0a09243 | 1362 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1363 | |
91a8bcde JB |
1364 | /* firmware counters are obviously reset now, but we shouldn't |
1365 | * partially track so also clear the fw_reset_accu counters. | |
1366 | */ | |
1367 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1368 | ||
0a79a0c0 EP |
1369 | /* |
1370 | * Disallow low power states when the FW is down by taking | |
1371 | * the UCODE_DOWN ref. in case of ongoing hw restart the | |
1372 | * ref is already taken, so don't take it again. | |
1373 | */ | |
1374 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1375 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
7498cf4c | 1376 | |
8ca151b5 JB |
1377 | /* async_handlers_wk is now blocked */ |
1378 | ||
1379 | /* | |
1380 | * The work item could be running or queued if the | |
1381 | * ROC time event stops just as we get here. | |
1382 | */ | |
1383 | cancel_work_sync(&mvm->roc_done_wk); | |
1384 | ||
1385 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
1386 | |
1387 | iwl_mvm_async_handlers_purge(mvm); | |
1388 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1389 | ||
1390 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1391 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1392 | |
0a79a0c0 EP |
1393 | /* |
1394 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1395 | * won't be called in this case). | |
1396 | */ | |
1397 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1398 | ||
bc44886d | 1399 | mvm->ucode_loaded = false; |
a0a09243 | 1400 | } |
bc44886d | 1401 | |
a0a09243 LC |
1402 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1403 | { | |
1404 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1405 | ||
1406 | flush_work(&mvm->d0i3_exit_work); | |
1407 | flush_work(&mvm->async_handlers_wk); | |
d2709ad7 | 1408 | cancel_delayed_work_sync(&mvm->fw_dump_wk); |
b6eaa45a | 1409 | iwl_mvm_free_fw_dump_desc(mvm); |
a0a09243 LC |
1410 | |
1411 | mutex_lock(&mvm->mutex); | |
1412 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1413 | mutex_unlock(&mvm->mutex); |
1414 | ||
1415 | /* | |
1416 | * The worker might have been waiting for the mutex, let it run and | |
1417 | * discover that its list is now empty. | |
1418 | */ | |
1419 | cancel_work_sync(&mvm->async_handlers_wk); | |
1420 | } | |
1421 | ||
fe0f2de3 IP |
1422 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1423 | { | |
1424 | u16 i; | |
1425 | ||
1426 | lockdep_assert_held(&mvm->mutex); | |
1427 | ||
1428 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1429 | if (!mvm->phy_ctxts[i].ref) | |
1430 | return &mvm->phy_ctxts[i]; | |
1431 | ||
1432 | IWL_ERR(mvm, "No available PHY context\n"); | |
1433 | return NULL; | |
1434 | } | |
1435 | ||
ee9c6cb0 EG |
1436 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1437 | s8 tx_power) | |
1438 | { | |
1439 | /* FW is in charge of regulatory enforcement */ | |
1440 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
1441 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
1442 | .pwr_restriction = cpu_to_le16(tx_power), | |
1443 | }; | |
1444 | ||
a1022927 | 1445 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, |
ee9c6cb0 EG |
1446 | sizeof(reduce_txpwr_cmd), |
1447 | &reduce_txpwr_cmd); | |
1448 | } | |
1449 | ||
8ca151b5 JB |
1450 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1451 | struct ieee80211_vif *vif) | |
1452 | { | |
1453 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1454 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1455 | int ret; | |
1456 | ||
aa5e1832 EG |
1457 | mvmvif->mvm = mvm; |
1458 | ||
d40fc489 GG |
1459 | /* |
1460 | * make sure D0i3 exit is completed, otherwise a target access | |
1461 | * during tx queue configuration could be done when still in | |
1462 | * D0i3 state. | |
1463 | */ | |
1464 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1465 | if (ret) | |
1466 | return ret; | |
1467 | ||
8ca151b5 JB |
1468 | /* |
1469 | * Not much to do here. The stack will not allow interface | |
1470 | * types or combinations that we didn't advertise, so we | |
1471 | * don't really have to check the types. | |
1472 | */ | |
1473 | ||
1474 | mutex_lock(&mvm->mutex); | |
1475 | ||
33cef925 JB |
1476 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1477 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1478 | mvmvif->beacon_stats.accu_num_beacons += | |
1479 | mvmvif->beacon_stats.num_beacons; | |
1480 | ||
e89044d7 | 1481 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1482 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1483 | if (ret) | |
1484 | goto out_unlock; | |
1485 | ||
1c2abf72 | 1486 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1487 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1488 | mvm->vif_count++; | |
ea183d02 | 1489 | |
8ca151b5 JB |
1490 | /* |
1491 | * The AP binding flow can be done only after the beacon | |
1492 | * template is configured (which happens only in the mac80211 | |
1493 | * start_ap() flow), and adding the broadcast station can happen | |
1494 | * only after the binding. | |
1495 | * In addition, since modifying the MAC before adding a bcast | |
1496 | * station is not allowed by the FW, delay the adding of MAC context to | |
1497 | * the point where we can also add the bcast station. | |
1498 | * In short: there's not much we can do at this point, other than | |
1499 | * allocating resources :) | |
1500 | */ | |
5023d966 JB |
1501 | if (vif->type == NL80211_IFTYPE_AP || |
1502 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1503 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1504 | if (ret) { |
1505 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1506 | goto out_release; | |
1507 | } | |
1508 | ||
77740cb4 | 1509 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1510 | goto out_unlock; |
1511 | } | |
1512 | ||
8ca151b5 JB |
1513 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1514 | if (ret) | |
1515 | goto out_release; | |
1516 | ||
999609f1 | 1517 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1518 | if (ret) |
fd66fc1c | 1519 | goto out_remove_mac; |
8ca151b5 | 1520 | |
7df15b1e | 1521 | /* beacon filtering */ |
a1022927 | 1522 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1523 | if (ret) |
1524 | goto out_remove_mac; | |
1525 | ||
7df15b1e | 1526 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1527 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1528 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1529 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1530 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1531 | } |
1532 | ||
8ca151b5 JB |
1533 | /* |
1534 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1535 | * so a dedicated PHY context is allocated to it and the corresponding | |
1536 | * MAC context is bound to it at this stage. | |
1537 | */ | |
1538 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1539 | |
fe0f2de3 IP |
1540 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1541 | if (!mvmvif->phy_ctxt) { | |
1542 | ret = -ENOSPC; | |
bd3351ba | 1543 | goto out_free_bf; |
fe0f2de3 | 1544 | } |
8ca151b5 | 1545 | |
53a9d61e | 1546 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1547 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1548 | if (ret) | |
53a9d61e | 1549 | goto out_unref_phy; |
8ca151b5 | 1550 | |
013290aa | 1551 | ret = iwl_mvm_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
1552 | if (ret) |
1553 | goto out_unbind; | |
1554 | ||
1555 | /* Save a pointer to p2p device vif, so it can later be used to | |
1556 | * update the p2p device MAC when a GO is started/stopped */ | |
1557 | mvm->p2p_device_vif = vif; | |
1558 | } | |
1559 | ||
63494374 | 1560 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1561 | goto out_unlock; |
1562 | ||
1563 | out_unbind: | |
1564 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1565 | out_unref_phy: |
fe0f2de3 | 1566 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1567 | out_free_bf: |
1568 | if (mvm->bf_allowed_vif == mvmvif) { | |
1569 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1570 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1571 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1572 | } |
8ca151b5 JB |
1573 | out_remove_mac: |
1574 | mvmvif->phy_ctxt = NULL; | |
1575 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1576 | out_release: | |
5ee2b215 AB |
1577 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1578 | mvm->vif_count--; | |
1c2abf72 | 1579 | |
8ca151b5 JB |
1580 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1581 | out_unlock: | |
1582 | mutex_unlock(&mvm->mutex); | |
1583 | ||
d40fc489 GG |
1584 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1585 | ||
8ca151b5 JB |
1586 | return ret; |
1587 | } | |
1588 | ||
38a12b5b JB |
1589 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1590 | struct ieee80211_vif *vif) | |
8ca151b5 | 1591 | { |
d92b732e | 1592 | u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
8ca151b5 JB |
1593 | |
1594 | if (tfd_msk) { | |
1595 | mutex_lock(&mvm->mutex); | |
1596 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
1597 | mutex_unlock(&mvm->mutex); | |
1598 | } | |
1599 | ||
1600 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1601 | /* | |
1602 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1603 | * We assume here that all the packets sent to the OFFCHANNEL | |
1604 | * queue are sent in ROC session. | |
1605 | */ | |
1606 | flush_work(&mvm->roc_done_wk); | |
1607 | } else { | |
1608 | /* | |
1609 | * By now, all the AC queues are empty. The AGG queues are | |
1610 | * empty too. We already got all the Tx responses for all the | |
1611 | * packets in the queues. The drain work can have been | |
0742a75a | 1612 | * triggered. Flush it. |
8ca151b5 JB |
1613 | */ |
1614 | flush_work(&mvm->sta_drained_wk); | |
1615 | } | |
38a12b5b JB |
1616 | } |
1617 | ||
1618 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1619 | struct ieee80211_vif *vif) | |
1620 | { | |
1621 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1622 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1623 | ||
1624 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1625 | |
1626 | mutex_lock(&mvm->mutex); | |
1627 | ||
7df15b1e HG |
1628 | if (mvm->bf_allowed_vif == mvmvif) { |
1629 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1630 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1631 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1632 | } |
1633 | ||
63494374 JB |
1634 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1635 | ||
8ca151b5 JB |
1636 | /* |
1637 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1638 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1639 | */ |
5023d966 JB |
1640 | if (vif->type == NL80211_IFTYPE_AP || |
1641 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1642 | #ifdef CONFIG_NL80211_TESTMODE |
1643 | if (vif == mvm->noa_vif) { | |
1644 | mvm->noa_vif = NULL; | |
1645 | mvm->noa_duration = 0; | |
1646 | } | |
1647 | #endif | |
013290aa | 1648 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1649 | goto out_release; |
1650 | } | |
1651 | ||
1652 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1653 | mvm->p2p_device_vif = NULL; | |
013290aa | 1654 | iwl_mvm_rm_bcast_sta(mvm, vif); |
8ca151b5 | 1655 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1656 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1657 | mvmvif->phy_ctxt = NULL; |
1658 | } | |
1659 | ||
5ee2b215 | 1660 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1661 | mvm->vif_count--; |
1c2abf72 | 1662 | |
999609f1 | 1663 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1664 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1665 | ||
1666 | out_release: | |
1667 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1668 | mutex_unlock(&mvm->mutex); | |
1669 | } | |
1670 | ||
1671 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1672 | { |
8ca151b5 JB |
1673 | return 0; |
1674 | } | |
1675 | ||
e59647ea EP |
1676 | struct iwl_mvm_mc_iter_data { |
1677 | struct iwl_mvm *mvm; | |
1678 | int port_id; | |
1679 | }; | |
1680 | ||
1681 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1682 | struct ieee80211_vif *vif) | |
1683 | { | |
1684 | struct iwl_mvm_mc_iter_data *data = _data; | |
1685 | struct iwl_mvm *mvm = data->mvm; | |
1686 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1687 | int ret, len; | |
1688 | ||
1689 | /* if we don't have free ports, mcast frames will be dropped */ | |
1690 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1691 | return; | |
1692 | ||
1693 | if (vif->type != NL80211_IFTYPE_STATION || | |
1694 | !vif->bss_conf.assoc) | |
1695 | return; | |
1696 | ||
1697 | cmd->port_id = data->port_id++; | |
1698 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1699 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1700 | ||
1c4abec0 | 1701 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1702 | if (ret) |
1703 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1704 | } | |
1705 | ||
1706 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1707 | { | |
1708 | struct iwl_mvm_mc_iter_data iter_data = { | |
1709 | .mvm = mvm, | |
88f2fd73 MG |
1710 | }; |
1711 | ||
e59647ea EP |
1712 | lockdep_assert_held(&mvm->mutex); |
1713 | ||
1714 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1715 | return; | |
1716 | ||
1c4abec0 | 1717 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1718 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1719 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1720 | } |
1721 | ||
e59647ea EP |
1722 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1723 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1724 | { |
e59647ea EP |
1725 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1726 | struct iwl_mcast_filter_cmd *cmd; | |
1727 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1728 | int addr_count; |
1729 | bool pass_all; | |
e59647ea EP |
1730 | int len; |
1731 | ||
f3bd58f4 MS |
1732 | addr_count = netdev_hw_addr_list_count(mc_list); |
1733 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1734 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1735 | if (pass_all) | |
e59647ea | 1736 | addr_count = 0; |
e59647ea EP |
1737 | |
1738 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1739 | cmd = kzalloc(len, GFP_ATOMIC); | |
1740 | if (!cmd) | |
1741 | return 0; | |
1742 | ||
1743 | if (pass_all) { | |
1744 | cmd->pass_all = 1; | |
1745 | return (u64)(unsigned long)cmd; | |
1746 | } | |
1747 | ||
1748 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1749 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1750 | cmd->count, addr->addr); | |
1751 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1752 | addr->addr, ETH_ALEN); | |
1753 | cmd->count++; | |
1754 | } | |
1755 | ||
1756 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1757 | } |
1758 | ||
1759 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1760 | unsigned int changed_flags, | |
1761 | unsigned int *total_flags, | |
1762 | u64 multicast) | |
1763 | { | |
e59647ea EP |
1764 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1765 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1766 | |
e59647ea | 1767 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1768 | |
e59647ea EP |
1769 | /* replace previous configuration */ |
1770 | kfree(mvm->mcast_filter_cmd); | |
1771 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1772 | |
e59647ea EP |
1773 | if (!cmd) |
1774 | goto out; | |
51b6b9e0 | 1775 | |
e59647ea EP |
1776 | iwl_mvm_recalc_multicast(mvm); |
1777 | out: | |
1778 | mutex_unlock(&mvm->mutex); | |
1779 | *total_flags = 0; | |
51b6b9e0 EG |
1780 | } |
1781 | ||
c87163b9 EP |
1782 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1783 | struct iwl_bcast_iter_data { | |
1784 | struct iwl_mvm *mvm; | |
1785 | struct iwl_bcast_filter_cmd *cmd; | |
1786 | u8 current_filter; | |
1787 | }; | |
1788 | ||
1789 | static void | |
1790 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1791 | const struct iwl_fw_bcast_filter *in_filter, | |
1792 | struct iwl_fw_bcast_filter *out_filter) | |
1793 | { | |
1794 | struct iwl_fw_bcast_filter_attr *attr; | |
1795 | int i; | |
1796 | ||
1797 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1798 | ||
1799 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1800 | attr = &out_filter->attrs[i]; | |
1801 | ||
1802 | if (!attr->mask) | |
1803 | break; | |
1804 | ||
2ee8f021 EP |
1805 | switch (attr->reserved1) { |
1806 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1807 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1808 | attr->mask = 0; | |
1809 | continue; | |
1810 | } | |
1811 | ||
1812 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1813 | break; | |
1814 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1815 | attr->val = *(__be32 *)&vif->addr[2]; | |
1816 | break; | |
1817 | default: | |
1818 | break; | |
1819 | } | |
1820 | attr->reserved1 = 0; | |
c87163b9 EP |
1821 | out_filter->num_attrs++; |
1822 | } | |
1823 | } | |
1824 | ||
1825 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1826 | struct ieee80211_vif *vif) | |
1827 | { | |
1828 | struct iwl_bcast_iter_data *data = _data; | |
1829 | struct iwl_mvm *mvm = data->mvm; | |
1830 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1831 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1832 | struct iwl_fw_bcast_mac *bcast_mac; | |
1833 | int i; | |
1834 | ||
1835 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1836 | return; | |
1837 | ||
1838 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1839 | ||
e48393e8 IP |
1840 | /* |
1841 | * enable filtering only for associated stations, but not for P2P | |
1842 | * Clients | |
1843 | */ | |
1844 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
1845 | !vif->bss_conf.assoc) | |
c87163b9 EP |
1846 | return; |
1847 | ||
1848 | bcast_mac->default_discard = 1; | |
1849 | ||
1850 | /* copy all configured filters */ | |
1851 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
1852 | /* | |
1853 | * Make sure we don't exceed our filters limit. | |
1854 | * if there is still a valid filter to be configured, | |
1855 | * be on the safe side and just allow bcast for this mac. | |
1856 | */ | |
1857 | if (WARN_ON_ONCE(data->current_filter >= | |
1858 | ARRAY_SIZE(cmd->filters))) { | |
1859 | bcast_mac->default_discard = 0; | |
1860 | bcast_mac->attached_filters = 0; | |
1861 | break; | |
1862 | } | |
1863 | ||
1864 | iwl_mvm_set_bcast_filter(vif, | |
1865 | &mvm->bcast_filters[i], | |
1866 | &cmd->filters[data->current_filter]); | |
1867 | ||
1868 | /* skip current filter if it contains no attributes */ | |
1869 | if (!cmd->filters[data->current_filter].num_attrs) | |
1870 | continue; | |
1871 | ||
1872 | /* attach the filter to current mac */ | |
1873 | bcast_mac->attached_filters |= | |
1874 | cpu_to_le16(BIT(data->current_filter)); | |
1875 | ||
1876 | data->current_filter++; | |
1877 | } | |
1878 | } | |
1879 | ||
de06a59e EP |
1880 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
1881 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 1882 | { |
c87163b9 EP |
1883 | struct iwl_bcast_iter_data iter_data = { |
1884 | .mvm = mvm, | |
de06a59e | 1885 | .cmd = cmd, |
c87163b9 EP |
1886 | }; |
1887 | ||
3b8983b1 MS |
1888 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
1889 | return false; | |
1890 | ||
de06a59e EP |
1891 | memset(cmd, 0, sizeof(*cmd)); |
1892 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
1893 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
1894 | ||
1895 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1896 | /* use debugfs filters/macs if override is configured */ | |
1897 | if (mvm->dbgfs_bcast_filtering.override) { | |
1898 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
1899 | sizeof(cmd->filters)); | |
1900 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
1901 | sizeof(cmd->macs)); | |
1902 | return true; | |
1903 | } | |
1904 | #endif | |
c87163b9 EP |
1905 | |
1906 | /* if no filters are configured, do nothing */ | |
1907 | if (!mvm->bcast_filters) | |
de06a59e | 1908 | return false; |
c87163b9 EP |
1909 | |
1910 | /* configure and attach these filters for each associated sta vif */ | |
1911 | ieee80211_iterate_active_interfaces( | |
1912 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1913 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
1914 | ||
de06a59e EP |
1915 | return true; |
1916 | } | |
1917 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1918 | struct ieee80211_vif *vif) | |
1919 | { | |
1920 | struct iwl_bcast_filter_cmd cmd; | |
1921 | ||
1922 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
1923 | return 0; | |
1924 | ||
1925 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
1926 | return 0; | |
1927 | ||
a1022927 | 1928 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
1929 | sizeof(cmd), &cmd); |
1930 | } | |
1931 | #else | |
1932 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
1933 | struct ieee80211_vif *vif) | |
1934 | { | |
1935 | return 0; | |
1936 | } | |
1937 | #endif | |
1938 | ||
8ca151b5 JB |
1939 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
1940 | struct ieee80211_vif *vif, | |
1941 | struct ieee80211_bss_conf *bss_conf, | |
1942 | u32 changes) | |
1943 | { | |
1944 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1945 | int ret; | |
1946 | ||
6e97b0d2 IP |
1947 | /* |
1948 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
1949 | * beacon interval, which was not known when the station interface was | |
1950 | * added. | |
1951 | */ | |
1952 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
1953 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
1954 | ||
3dfd3a97 JB |
1955 | /* |
1956 | * If we're not associated yet, take the (new) BSSID before associating | |
1957 | * so the firmware knows. If we're already associated, then use the old | |
1958 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
1959 | * branch for disassociation below. | |
1960 | */ | |
1961 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
1962 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1963 | ||
1964 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
1965 | if (ret) |
1966 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
1967 | ||
3dfd3a97 JB |
1968 | /* after sending it once, adopt mac80211 data */ |
1969 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
1970 | mvmvif->associated = bss_conf->assoc; | |
1971 | ||
8ca151b5 JB |
1972 | if (changes & BSS_CHANGED_ASSOC) { |
1973 | if (bss_conf->assoc) { | |
33cef925 JB |
1974 | /* clear statistics to get clean beacon counter */ |
1975 | iwl_mvm_request_statistics(mvm, true); | |
1976 | memset(&mvmvif->beacon_stats, 0, | |
1977 | sizeof(mvmvif->beacon_stats)); | |
1978 | ||
8ca151b5 | 1979 | /* add quota for this interface */ |
0166230c | 1980 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
1981 | if (ret) { |
1982 | IWL_ERR(mvm, "failed to update quotas\n"); | |
1983 | return; | |
1984 | } | |
016d27e1 JB |
1985 | |
1986 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
1987 | &mvm->status)) { | |
1988 | /* | |
1989 | * If we're restarting then the firmware will | |
1990 | * obviously have lost synchronisation with | |
1991 | * the AP. It will attempt to synchronise by | |
1992 | * itself, but we can make it more reliable by | |
1993 | * scheduling a session protection time event. | |
1994 | * | |
1995 | * The firmware needs to receive a beacon to | |
1996 | * catch up with synchronisation, use 110% of | |
1997 | * the beacon interval. | |
1998 | * | |
1999 | * Set a large maximum delay to allow for more | |
2000 | * than a single interface. | |
2001 | */ | |
2002 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
2003 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 2004 | 5 * dur, false); |
016d27e1 | 2005 | } |
1f3b0ff8 LE |
2006 | |
2007 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 2008 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 2009 | if (vif->p2p) { |
29a90a49 | 2010 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
2011 | iwl_mvm_update_smps(mvm, vif, |
2012 | IWL_MVM_SMPS_REQ_PROT, | |
2013 | IEEE80211_SMPS_DYNAMIC); | |
2014 | } | |
8ca151b5 | 2015 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
2016 | /* |
2017 | * If update fails - SF might be running in associated | |
2018 | * mode while disassociated - which is forbidden. | |
2019 | */ | |
2020 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
2021 | "Failed to update SF upon disassociation\n"); | |
2022 | ||
8ca151b5 JB |
2023 | /* remove AP station now that the MAC is unassoc */ |
2024 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
2025 | if (ret) | |
2026 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
2027 | |
2028 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
2029 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
2030 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
2031 | /* remove quota for this interface */ | |
0166230c | 2032 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
2033 | if (ret) |
2034 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
2035 | |
2036 | if (vif->p2p) | |
2037 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
2038 | |
2039 | /* this will take the cleared BSSID from bss_conf */ | |
2040 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2041 | if (ret) | |
2042 | IWL_ERR(mvm, | |
2043 | "failed to update MAC %pM (clear after unassoc)\n", | |
2044 | vif->addr); | |
8ca151b5 | 2045 | } |
a20fd398 | 2046 | |
e59647ea | 2047 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 2048 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 2049 | |
a20fd398 AO |
2050 | /* reset rssi values */ |
2051 | mvmvif->bf_data.ave_beacon_signal = 0; | |
2052 | ||
8e484f0b | 2053 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
2054 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
2055 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 2056 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
2057 | /* |
2058 | * We received a beacon _after_ association so | |
2059 | * remove the session protection. | |
2060 | */ | |
2061 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2062 | &mvmvif->time_event_data); | |
8ca151b5 | 2063 | } |
cc87d322 EH |
2064 | |
2065 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
2066 | iwl_mvm_sf_update(mvm, vif, false); | |
2067 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
2068 | } | |
2069 | ||
1bc10d3b JB |
2070 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { |
2071 | ret = iwl_mvm_power_update_mac(mvm); | |
2072 | if (ret) | |
2073 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2074 | } | |
2075 | ||
88f2fd73 MG |
2076 | if (changes & BSS_CHANGED_TXPOWER) { |
2077 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2078 | bss_conf->txpower); | |
2079 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2080 | } | |
a20fd398 AO |
2081 | |
2082 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2083 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2084 | /* reset cqm events tracking */ |
2085 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2086 | if (mvmvif->bf_data.bf_enabled) { |
2087 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2088 | if (ret) | |
2089 | IWL_ERR(mvm, | |
2090 | "failed to update CQM thresholds\n"); | |
2091 | } | |
a20fd398 | 2092 | } |
2ee8f021 EP |
2093 | |
2094 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2095 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
2ee8f021 EP |
2096 | iwl_mvm_configure_bcast_filter(mvm, vif); |
2097 | } | |
8ca151b5 JB |
2098 | } |
2099 | ||
5023d966 JB |
2100 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2101 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2102 | { |
2103 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2104 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2105 | int ret; | |
2106 | ||
576eeee9 EP |
2107 | /* |
2108 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2109 | * (the system time), so make sure it is available. | |
2110 | */ | |
2111 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2112 | if (ret) | |
2113 | return ret; | |
2114 | ||
8ca151b5 JB |
2115 | mutex_lock(&mvm->mutex); |
2116 | ||
2117 | /* Send the beacon template */ | |
2118 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2119 | if (ret) | |
2120 | goto out_unlock; | |
2121 | ||
6e97b0d2 IP |
2122 | /* |
2123 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2124 | * beacon interval, which was not known when the AP interface was added. | |
2125 | */ | |
2126 | if (vif->type == NL80211_IFTYPE_AP) | |
2127 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2128 | ||
8ca151b5 JB |
2129 | /* Add the mac context */ |
2130 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2131 | if (ret) | |
2132 | goto out_unlock; | |
2133 | ||
2134 | /* Perform the binding */ | |
2135 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2136 | if (ret) | |
2137 | goto out_remove; | |
2138 | ||
8ca151b5 JB |
2139 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
2140 | * are added and applied to the scheduler */ | |
013290aa | 2141 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
2142 | if (ret) |
2143 | goto out_unbind; | |
2144 | ||
5691e218 IP |
2145 | /* must be set before quota calculations */ |
2146 | mvmvif->ap_ibss_active = true; | |
2147 | ||
a11e144e | 2148 | /* power updated needs to be done before quotas */ |
999609f1 | 2149 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2150 | |
0166230c | 2151 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 | 2152 | if (ret) |
a11e144e | 2153 | goto out_quota_failed; |
8ca151b5 | 2154 | |
5023d966 | 2155 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2156 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2157 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2158 | |
29a90a49 EP |
2159 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2160 | ||
8e484f0b | 2161 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2162 | |
f697267f AN |
2163 | /* we don't support TDLS during DCM */ |
2164 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2165 | iwl_mvm_teardown_tdls_peers(mvm); | |
2166 | ||
8ca151b5 JB |
2167 | mutex_unlock(&mvm->mutex); |
2168 | return 0; | |
2169 | ||
a11e144e | 2170 | out_quota_failed: |
999609f1 | 2171 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2172 | mvmvif->ap_ibss_active = false; |
013290aa | 2173 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 JB |
2174 | out_unbind: |
2175 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2176 | out_remove: | |
2177 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2178 | out_unlock: | |
2179 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2180 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2181 | return ret; |
2182 | } | |
2183 | ||
5023d966 JB |
2184 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2185 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2186 | { |
2187 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2188 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2189 | ||
38a12b5b JB |
2190 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2191 | ||
8ca151b5 JB |
2192 | mutex_lock(&mvm->mutex); |
2193 | ||
664322fa | 2194 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2195 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2196 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2197 | &mvmvif->time_event_data); | |
664322fa | 2198 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
7f0a7c67 | 2199 | } |
664322fa | 2200 | |
003e5236 AO |
2201 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2202 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2203 | mvm->csa_tx_block_bcn_timeout = 0; | |
2204 | } | |
2205 | ||
5023d966 | 2206 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2207 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2208 | |
8e484f0b | 2209 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2210 | |
29a90a49 EP |
2211 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2212 | ||
5023d966 | 2213 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2214 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2215 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2216 | |
0166230c | 2217 | iwl_mvm_update_quotas(mvm, NULL); |
013290aa | 2218 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 | 2219 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2220 | |
999609f1 | 2221 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2222 | |
8ca151b5 JB |
2223 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2224 | ||
2225 | mutex_unlock(&mvm->mutex); | |
2226 | } | |
2227 | ||
5023d966 JB |
2228 | static void |
2229 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2230 | struct ieee80211_vif *vif, | |
2231 | struct ieee80211_bss_conf *bss_conf, | |
2232 | u32 changes) | |
8ca151b5 | 2233 | { |
be2056fc | 2234 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2235 | |
be2056fc IP |
2236 | /* Changes will be applied when the AP/IBSS is started */ |
2237 | if (!mvmvif->ap_ibss_active) | |
2238 | return; | |
2239 | ||
863230da | 2240 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2241 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2242 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2243 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2244 | |
8ca151b5 | 2245 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2246 | if (changes & BSS_CHANGED_BEACON && |
2247 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2248 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2249 | |
2250 | if (changes & BSS_CHANGED_TXPOWER) { | |
2251 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2252 | bss_conf->txpower); | |
2253 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2254 | } | |
2255 | ||
8ca151b5 JB |
2256 | } |
2257 | ||
2258 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2259 | struct ieee80211_vif *vif, | |
2260 | struct ieee80211_bss_conf *bss_conf, | |
2261 | u32 changes) | |
2262 | { | |
2263 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2264 | ||
576eeee9 EP |
2265 | /* |
2266 | * iwl_mvm_bss_info_changed_station() might call | |
2267 | * iwl_mvm_protect_session(), which reads directly from | |
2268 | * the device (the system time), so make sure it is available. | |
2269 | */ | |
2270 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2271 | return; | |
2272 | ||
8ca151b5 JB |
2273 | mutex_lock(&mvm->mutex); |
2274 | ||
723f02ed | 2275 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
fb98be5e | 2276 | iwl_mvm_scan_offload_stop(mvm, true); |
723f02ed | 2277 | |
8ca151b5 JB |
2278 | switch (vif->type) { |
2279 | case NL80211_IFTYPE_STATION: | |
2280 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2281 | break; | |
2282 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2283 | case NL80211_IFTYPE_ADHOC: |
2284 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
2285 | break; |
2286 | default: | |
2287 | /* shouldn't happen */ | |
2288 | WARN_ON_ONCE(1); | |
2289 | } | |
2290 | ||
2291 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2292 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2293 | } |
2294 | ||
4660dfbb EP |
2295 | static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm, |
2296 | enum iwl_scan_status scan_type) | |
2297 | { | |
2298 | int ret; | |
2299 | bool wait_for_handlers = false; | |
2300 | ||
2301 | mutex_lock(&mvm->mutex); | |
2302 | ||
2303 | if (mvm->scan_status != scan_type) { | |
2304 | ret = 0; | |
2305 | /* make sure there are no pending notifications */ | |
2306 | wait_for_handlers = true; | |
2307 | goto out; | |
2308 | } | |
2309 | ||
2310 | switch (scan_type) { | |
2311 | case IWL_MVM_SCAN_SCHED: | |
2312 | ret = iwl_mvm_scan_offload_stop(mvm, true); | |
2313 | break; | |
2314 | case IWL_MVM_SCAN_OS: | |
2315 | ret = iwl_mvm_cancel_scan(mvm); | |
2316 | break; | |
2317 | case IWL_MVM_SCAN_NONE: | |
2318 | default: | |
2319 | WARN_ON_ONCE(1); | |
2320 | ret = -EINVAL; | |
2321 | break; | |
2322 | } | |
2323 | if (ret) | |
2324 | goto out; | |
2325 | ||
2326 | wait_for_handlers = true; | |
2327 | out: | |
2328 | mutex_unlock(&mvm->mutex); | |
2329 | ||
2330 | /* make sure we consume the completion notification */ | |
2331 | if (wait_for_handlers) | |
2332 | iwl_mvm_wait_for_async_handlers(mvm); | |
2333 | ||
2334 | return ret; | |
2335 | } | |
8ca151b5 JB |
2336 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, |
2337 | struct ieee80211_vif *vif, | |
c56ef672 | 2338 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2339 | { |
2340 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
c56ef672 | 2341 | struct cfg80211_scan_request *req = &hw_req->req; |
8ca151b5 JB |
2342 | int ret; |
2343 | ||
762533ba DS |
2344 | if (req->n_channels == 0 || |
2345 | req->n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2346 | return -EINVAL; |
2347 | ||
d2496221 DS |
2348 | if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
2349 | ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED); | |
2350 | if (ret) | |
2351 | return ret; | |
2352 | } | |
4660dfbb | 2353 | |
8ca151b5 JB |
2354 | mutex_lock(&mvm->mutex); |
2355 | ||
88931cc9 AN |
2356 | if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) { |
2357 | IWL_ERR(mvm, "scan while LAR regdomain is not set\n"); | |
2358 | ret = -EBUSY; | |
2359 | goto out; | |
2360 | } | |
2361 | ||
4660dfbb | 2362 | if (mvm->scan_status != IWL_MVM_SCAN_NONE) { |
8ca151b5 | 2363 | ret = -EBUSY; |
519e2026 AN |
2364 | goto out; |
2365 | } | |
8ca151b5 | 2366 | |
519e2026 AN |
2367 | iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN); |
2368 | ||
b975e55a | 2369 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) |
d2496221 | 2370 | ret = iwl_mvm_scan_umac(mvm, vif, hw_req); |
fb98be5e | 2371 | else |
1f940386 | 2372 | ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req); |
fb98be5e | 2373 | |
519e2026 AN |
2374 | if (ret) |
2375 | iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); | |
2376 | out: | |
8ca151b5 | 2377 | mutex_unlock(&mvm->mutex); |
8ca151b5 JB |
2378 | return ret; |
2379 | } | |
2380 | ||
2381 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2382 | struct ieee80211_vif *vif) | |
2383 | { | |
2384 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2385 | ||
2386 | mutex_lock(&mvm->mutex); | |
2387 | ||
2388 | iwl_mvm_cancel_scan(mvm); | |
2389 | ||
2390 | mutex_unlock(&mvm->mutex); | |
2391 | } | |
2392 | ||
2393 | static void | |
2394 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2395 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2396 | int num_frames, |
2397 | enum ieee80211_frame_release_type reason, | |
2398 | bool more_data) | |
2399 | { | |
2400 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2401 | |
3e56eadf | 2402 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2403 | |
3e56eadf JB |
2404 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2405 | tids, more_data, false); | |
2406 | } | |
2407 | ||
2408 | static void | |
2409 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2410 | struct ieee80211_sta *sta, u16 tids, | |
2411 | int num_frames, | |
2412 | enum ieee80211_frame_release_type reason, | |
2413 | bool more_data) | |
2414 | { | |
2415 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2416 | ||
2417 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
2418 | ||
2419 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2420 | tids, more_data, true); | |
8ca151b5 JB |
2421 | } |
2422 | ||
2423 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
2424 | struct ieee80211_vif *vif, | |
2425 | enum sta_notify_cmd cmd, | |
2426 | struct ieee80211_sta *sta) | |
2427 | { | |
2428 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2429 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
3e56eadf | 2430 | int tid; |
8ca151b5 JB |
2431 | |
2432 | switch (cmd) { | |
2433 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 2434 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 2435 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf JB |
2436 | spin_lock_bh(&mvmsta->lock); |
2437 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2438 | struct iwl_mvm_tid_data *tid_data; | |
2439 | ||
2440 | tid_data = &mvmsta->tid_data[tid]; | |
2441 | if (tid_data->state != IWL_AGG_ON && | |
2442 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
2443 | continue; | |
2444 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
2445 | continue; | |
2446 | ieee80211_sta_set_buffered(sta, tid, true); | |
2447 | } | |
2448 | spin_unlock_bh(&mvmsta->lock); | |
8ca151b5 JB |
2449 | /* |
2450 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2451 | * queues to this station will not be transmitted. The fw will | |
2452 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2453 | */ | |
2454 | break; | |
2455 | case STA_NOTIFY_AWAKE: | |
881acd89 | 2456 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 2457 | break; |
9cc40712 | 2458 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2459 | break; |
2460 | default: | |
2461 | break; | |
2462 | } | |
2463 | } | |
2464 | ||
1ddbbb0c JB |
2465 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2466 | struct ieee80211_vif *vif, | |
2467 | struct ieee80211_sta *sta) | |
2468 | { | |
2469 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2470 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2471 | |
2472 | /* | |
2473 | * This is called before mac80211 does RCU synchronisation, | |
2474 | * so here we already invalidate our internal RCU-protected | |
2475 | * station pointer. The rest of the code will thus no longer | |
2476 | * be able to find the station this way, and we don't rely | |
2477 | * on further RCU synchronisation after the sta_state() | |
2478 | * callback deleted the station. | |
2479 | */ | |
2480 | mutex_lock(&mvm->mutex); | |
2481 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2482 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2483 | ERR_PTR(-ENOENT)); | |
2484 | mutex_unlock(&mvm->mutex); | |
2485 | } | |
2486 | ||
bd1ba664 JB |
2487 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2488 | const u8 *bssid) | |
2489 | { | |
2490 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2491 | return; | |
2492 | ||
2493 | if (iwlwifi_mod_params.uapsd_disable) { | |
2494 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; | |
2495 | return; | |
2496 | } | |
2497 | ||
2498 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2499 | } | |
2500 | ||
8ca151b5 JB |
2501 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2502 | struct ieee80211_vif *vif, | |
2503 | struct ieee80211_sta *sta, | |
2504 | enum ieee80211_sta_state old_state, | |
2505 | enum ieee80211_sta_state new_state) | |
2506 | { | |
2507 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2508 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2509 | int ret; | |
2510 | ||
2511 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2512 | sta->addr, old_state, new_state); | |
2513 | ||
2514 | /* this would be a mac80211 bug ... but don't crash */ | |
2515 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2516 | return -EINVAL; | |
2517 | ||
2518 | /* if a STA is being removed, reuse its ID */ | |
2519 | flush_work(&mvm->sta_drained_wk); | |
2520 | ||
2521 | mutex_lock(&mvm->mutex); | |
2522 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2523 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2524 | /* |
2525 | * Firmware bug - it'll crash if the beacon interval is less | |
2526 | * than 16. We can't avoid connecting at all, so refuse the | |
2527 | * station state change, this will cause mac80211 to abandon | |
2528 | * attempts to connect to this AP, and eventually wpa_s will | |
2529 | * blacklist the AP... | |
2530 | */ | |
2531 | if (vif->type == NL80211_IFTYPE_STATION && | |
2532 | vif->bss_conf.beacon_int < 16) { | |
2533 | IWL_ERR(mvm, | |
2534 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2535 | sta->addr, vif->bss_conf.beacon_int); | |
2536 | ret = -EINVAL; | |
2537 | goto out_unlock; | |
2538 | } | |
cf7b491d AN |
2539 | |
2540 | if (sta->tdls && | |
2541 | (vif->p2p || | |
fa3d07e4 AN |
2542 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2543 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2544 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2545 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2546 | ret = -EBUSY; | |
2547 | goto out_unlock; | |
2548 | } | |
2549 | ||
8ca151b5 | 2550 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
fa3d07e4 AN |
2551 | if (sta->tdls && ret == 0) |
2552 | iwl_mvm_recalc_tdls_state(mvm, vif, true); | |
8ca151b5 JB |
2553 | } else if (old_state == IEEE80211_STA_NONE && |
2554 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2555 | /* |
2556 | * EBS may be disabled due to previous failures reported by FW. | |
2557 | * Reset EBS status here assuming environment has been changed. | |
2558 | */ | |
2559 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2560 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2561 | ret = 0; |
2562 | } else if (old_state == IEEE80211_STA_AUTH && | |
2563 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
2564 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
2565 | if (ret == 0) | |
2566 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
2567 | mvmvif->phy_ctxt->channel->band, |
2568 | true); | |
8ca151b5 JB |
2569 | } else if (old_state == IEEE80211_STA_ASSOC && |
2570 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2571 | |
2572 | /* we don't support TDLS during DCM */ | |
2573 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2574 | iwl_mvm_teardown_tdls_peers(mvm); | |
2575 | ||
7df15b1e | 2576 | /* enable beacon filtering */ |
fa7b2e7f | 2577 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2578 | ret = 0; |
2579 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2580 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2581 | /* disable beacon filtering */ |
a1022927 | 2582 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2583 | ret = 0; |
2584 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2585 | new_state == IEEE80211_STA_AUTH) { | |
2586 | ret = 0; | |
2587 | } else if (old_state == IEEE80211_STA_AUTH && | |
2588 | new_state == IEEE80211_STA_NONE) { | |
2589 | ret = 0; | |
2590 | } else if (old_state == IEEE80211_STA_NONE && | |
2591 | new_state == IEEE80211_STA_NOTEXIST) { | |
2592 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
fa3d07e4 AN |
2593 | if (sta->tdls) |
2594 | iwl_mvm_recalc_tdls_state(mvm, vif, false); | |
8ca151b5 JB |
2595 | } else { |
2596 | ret = -EIO; | |
2597 | } | |
48bc1307 | 2598 | out_unlock: |
8ca151b5 JB |
2599 | mutex_unlock(&mvm->mutex); |
2600 | ||
9c126cd6 LK |
2601 | if (sta->tdls && ret == 0) { |
2602 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2603 | new_state == IEEE80211_STA_NONE) | |
2604 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2605 | else if (old_state == IEEE80211_STA_NONE && | |
2606 | new_state == IEEE80211_STA_NOTEXIST) | |
2607 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2608 | } | |
2609 | ||
8ca151b5 JB |
2610 | return ret; |
2611 | } | |
2612 | ||
2613 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2614 | { | |
2615 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2616 | ||
2617 | mvm->rts_threshold = value; | |
2618 | ||
2619 | return 0; | |
2620 | } | |
2621 | ||
1f3b0ff8 LE |
2622 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2623 | struct ieee80211_vif *vif, | |
2624 | struct ieee80211_sta *sta, u32 changed) | |
2625 | { | |
2626 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2627 | ||
2628 | if (vif->type == NL80211_IFTYPE_STATION && | |
2629 | changed & IEEE80211_RC_NSS_CHANGED) | |
2630 | iwl_mvm_sf_update(mvm, vif, false); | |
2631 | } | |
2632 | ||
8ca151b5 JB |
2633 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2634 | struct ieee80211_vif *vif, u16 ac, | |
2635 | const struct ieee80211_tx_queue_params *params) | |
2636 | { | |
2637 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2638 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2639 | ||
2640 | mvmvif->queue_params[ac] = *params; | |
2641 | ||
2642 | /* | |
2643 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2644 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2645 | */ | |
2646 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2647 | int ret; | |
2648 | ||
2649 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2650 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2651 | mutex_unlock(&mvm->mutex); |
2652 | return ret; | |
2653 | } | |
2654 | return 0; | |
2655 | } | |
2656 | ||
2657 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2658 | struct ieee80211_vif *vif) | |
2659 | { | |
2660 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2661 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
2662 | 200 + vif->bss_conf.beacon_int); | |
2663 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
2664 | 100 + vif->bss_conf.beacon_int); | |
2665 | ||
2666 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2667 | return; | |
2668 | ||
576eeee9 EP |
2669 | /* |
2670 | * iwl_mvm_protect_session() reads directly from the device | |
2671 | * (the system time), so make sure it is available. | |
2672 | */ | |
2673 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2674 | return; | |
2675 | ||
8ca151b5 JB |
2676 | mutex_lock(&mvm->mutex); |
2677 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2678 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2679 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2680 | |
2681 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2682 | } |
2683 | ||
35a000b7 DS |
2684 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2685 | struct ieee80211_vif *vif, | |
2686 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2687 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2688 | { |
2689 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2690 | int ret; | |
2691 | ||
d2496221 DS |
2692 | if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { |
2693 | ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS); | |
2694 | if (ret) | |
2695 | return ret; | |
2696 | } | |
4660dfbb | 2697 | |
35a000b7 DS |
2698 | mutex_lock(&mvm->mutex); |
2699 | ||
88931cc9 AN |
2700 | if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) { |
2701 | IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n"); | |
2702 | ret = -EBUSY; | |
2703 | goto out; | |
2704 | } | |
2705 | ||
1f940386 | 2706 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2707 | ret = -EBUSY; |
2708 | goto out; | |
2709 | } | |
2710 | ||
4660dfbb | 2711 | if (mvm->scan_status != IWL_MVM_SCAN_NONE) { |
35a000b7 DS |
2712 | ret = -EBUSY; |
2713 | goto out; | |
2714 | } | |
2715 | ||
b141c235 | 2716 | ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies); |
35a000b7 | 2717 | if (ret) |
b141c235 | 2718 | mvm->scan_status = IWL_MVM_SCAN_NONE; |
d2496221 | 2719 | |
35a000b7 DS |
2720 | out: |
2721 | mutex_unlock(&mvm->mutex); | |
2722 | return ret; | |
2723 | } | |
2724 | ||
37e3308c JB |
2725 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2726 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2727 | { |
2728 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2729 | int ret; |
35a000b7 DS |
2730 | |
2731 | mutex_lock(&mvm->mutex); | |
fb98be5e | 2732 | ret = iwl_mvm_scan_offload_stop(mvm, false); |
35a000b7 | 2733 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2734 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2735 | |
33ea27f6 | 2736 | return ret; |
d2496221 | 2737 | |
35a000b7 DS |
2738 | } |
2739 | ||
8ca151b5 JB |
2740 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2741 | enum set_key_cmd cmd, | |
2742 | struct ieee80211_vif *vif, | |
2743 | struct ieee80211_sta *sta, | |
2744 | struct ieee80211_key_conf *key) | |
2745 | { | |
2746 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2747 | int ret; | |
2748 | ||
2749 | if (iwlwifi_mod_params.sw_crypto) { | |
2750 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
2751 | return -EOPNOTSUPP; | |
2752 | } | |
2753 | ||
2754 | switch (key->cipher) { | |
2755 | case WLAN_CIPHER_SUITE_TKIP: | |
2756 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
2757 | /* fall-through */ | |
2758 | case WLAN_CIPHER_SUITE_CCMP: | |
2759 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2760 | break; | |
2761 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
2762 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
2763 | break; | |
2764 | case WLAN_CIPHER_SUITE_WEP40: | |
2765 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2766 | /* For non-client mode, only use WEP keys for TX as we probably |
2767 | * don't have a station yet anyway and would then have to keep | |
2768 | * track of the keys, linking them to each of the clients/peers | |
2769 | * as they appear. For now, don't do that, for performance WEP | |
2770 | * offload doesn't really matter much, but we need it for some | |
2771 | * other offload features in client mode. | |
8ca151b5 | 2772 | */ |
ba3943b0 JB |
2773 | if (vif->type != NL80211_IFTYPE_STATION) |
2774 | return 0; | |
2775 | break; | |
8ca151b5 | 2776 | default: |
e36e5433 MS |
2777 | /* currently FW supports only one optional cipher scheme */ |
2778 | if (hw->n_cipher_schemes && | |
2779 | hw->cipher_schemes->cipher == key->cipher) | |
2780 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2781 | else | |
2782 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2783 | } |
2784 | ||
2785 | mutex_lock(&mvm->mutex); | |
2786 | ||
2787 | switch (cmd) { | |
2788 | case SET_KEY: | |
5023d966 JB |
2789 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2790 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2791 | /* | |
2792 | * GTK on AP interface is a TX-only key, return 0; | |
2793 | * on IBSS they're per-station and because we're lazy | |
2794 | * we don't support them for RX, so do the same. | |
2795 | */ | |
6caffd4f JB |
2796 | ret = 0; |
2797 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
2798 | break; | |
2799 | } | |
2800 | ||
8ca151b5 JB |
2801 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
2802 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false); | |
2803 | if (ret) { | |
2804 | IWL_WARN(mvm, "set key failed\n"); | |
2805 | /* | |
2806 | * can't add key for RX, but we don't need it | |
2807 | * in the device for TX so still return 0 | |
2808 | */ | |
6caffd4f | 2809 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
2810 | ret = 0; |
2811 | } | |
2812 | ||
2813 | break; | |
2814 | case DISABLE_KEY: | |
6caffd4f JB |
2815 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
2816 | ret = 0; | |
2817 | break; | |
2818 | } | |
2819 | ||
8ca151b5 JB |
2820 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2821 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2822 | break; | |
2823 | default: | |
2824 | ret = -EINVAL; | |
2825 | } | |
2826 | ||
2827 | mutex_unlock(&mvm->mutex); | |
2828 | return ret; | |
2829 | } | |
2830 | ||
2831 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2832 | struct ieee80211_vif *vif, | |
2833 | struct ieee80211_key_conf *keyconf, | |
2834 | struct ieee80211_sta *sta, | |
2835 | u32 iv32, u16 *phase1key) | |
2836 | { | |
2837 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2838 | ||
5023d966 JB |
2839 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2840 | return; | |
2841 | ||
8ca151b5 JB |
2842 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2843 | } | |
2844 | ||
2845 | ||
b112889c AM |
2846 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
2847 | struct iwl_rx_packet *pkt, void *data) | |
2848 | { | |
2849 | struct iwl_mvm *mvm = | |
2850 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
2851 | struct iwl_hs20_roc_res *resp; | |
2852 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
2853 | struct iwl_mvm_time_event_data *te_data = data; | |
2854 | ||
2855 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
2856 | return true; | |
2857 | ||
2858 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
2859 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
2860 | return true; | |
2861 | } | |
2862 | ||
2863 | resp = (void *)pkt->data; | |
2864 | ||
2865 | IWL_DEBUG_TE(mvm, | |
2866 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
2867 | resp->status, resp->event_unique_id); | |
2868 | ||
2869 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
2870 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
2871 | te_data->uid); | |
2872 | ||
2873 | spin_lock_bh(&mvm->time_event_lock); | |
2874 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
2875 | spin_unlock_bh(&mvm->time_event_lock); | |
2876 | ||
2877 | return true; | |
2878 | } | |
2879 | ||
2880 | #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000 | |
2881 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, | |
2882 | struct ieee80211_channel *channel, | |
2883 | struct ieee80211_vif *vif, | |
2884 | int duration) | |
2885 | { | |
2886 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
2887 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2888 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
2889 | static const u8 time_event_response[] = { HOT_SPOT_CMD }; | |
2890 | struct iwl_notification_wait wait_time_event; | |
2891 | struct iwl_hs20_roc_req aux_roc_req = { | |
2892 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
2893 | .id_and_color = | |
2894 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
2895 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
2896 | /* Set the channel info data */ | |
2897 | .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? | |
2898 | PHY_BAND_24 : PHY_BAND_5, | |
2899 | .channel_info.channel = channel->hw_value, | |
2900 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
2901 | /* Set the time and duration */ | |
2902 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
2903 | .apply_time_max_delay = | |
2904 | cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)), | |
2905 | .duration = cpu_to_le32(MSEC_TO_TU(duration)), | |
2906 | }; | |
2907 | ||
2908 | /* Set the node address */ | |
2909 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
2910 | ||
a6cc5163 MG |
2911 | lockdep_assert_held(&mvm->mutex); |
2912 | ||
2913 | spin_lock_bh(&mvm->time_event_lock); | |
2914 | ||
2915 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
2916 | spin_unlock_bh(&mvm->time_event_lock); | |
2917 | return -EIO; | |
2918 | } | |
2919 | ||
b112889c AM |
2920 | te_data->vif = vif; |
2921 | te_data->duration = duration; | |
2922 | te_data->id = HOT_SPOT_CMD; | |
2923 | ||
b112889c AM |
2924 | spin_unlock_bh(&mvm->time_event_lock); |
2925 | ||
2926 | /* | |
2927 | * Use a notification wait, which really just processes the | |
2928 | * command response and doesn't wait for anything, in order | |
2929 | * to be able to process the response and get the UID inside | |
2930 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
2931 | * stores the buffer and then wakes up this thread, by which | |
2932 | * time another notification (that the time event started) | |
2933 | * might already be processed unsuccessfully. | |
2934 | */ | |
2935 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
2936 | time_event_response, | |
2937 | ARRAY_SIZE(time_event_response), | |
2938 | iwl_mvm_rx_aux_roc, te_data); | |
2939 | ||
2940 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
2941 | &aux_roc_req); | |
2942 | ||
2943 | if (res) { | |
2944 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
2945 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
2946 | goto out_clear_te; | |
2947 | } | |
2948 | ||
2949 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
2950 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
2951 | /* should never fail */ | |
2952 | WARN_ON_ONCE(res); | |
2953 | ||
2954 | if (res) { | |
2955 | out_clear_te: | |
2956 | spin_lock_bh(&mvm->time_event_lock); | |
2957 | iwl_mvm_te_clear_data(mvm, te_data); | |
2958 | spin_unlock_bh(&mvm->time_event_lock); | |
2959 | } | |
2960 | ||
2961 | return res; | |
2962 | } | |
2963 | ||
8ca151b5 JB |
2964 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
2965 | struct ieee80211_vif *vif, | |
2966 | struct ieee80211_channel *channel, | |
d339d5ca IP |
2967 | int duration, |
2968 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
2969 | { |
2970 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 2971 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 2972 | struct cfg80211_chan_def chandef; |
31d385ae IP |
2973 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
2974 | int ret, i; | |
2975 | ||
2976 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
2977 | duration, type); | |
8ca151b5 | 2978 | |
a6cc5163 MG |
2979 | mutex_lock(&mvm->mutex); |
2980 | ||
b112889c AM |
2981 | switch (vif->type) { |
2982 | case NL80211_IFTYPE_STATION: | |
5ac6c72e LC |
2983 | if (mvm->fw->ucode_capa.capa[0] & |
2984 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) { | |
2985 | /* Use aux roc framework (HS20) */ | |
2986 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
2987 | vif, duration); | |
2988 | goto out_unlock; | |
2989 | } | |
2990 | IWL_ERR(mvm, "hotspot not supported\n"); | |
2991 | ret = -EINVAL; | |
a6cc5163 | 2992 | goto out_unlock; |
b112889c AM |
2993 | case NL80211_IFTYPE_P2P_DEVICE: |
2994 | /* handle below */ | |
2995 | break; | |
2996 | default: | |
2997 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
2998 | ret = -EINVAL; |
2999 | goto out_unlock; | |
8ca151b5 JB |
3000 | } |
3001 | ||
31d385ae IP |
3002 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3003 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3004 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3005 | continue; | |
3006 | ||
3007 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3008 | /* | |
3009 | * Unbind the P2P_DEVICE from the current PHY context, | |
3010 | * and if the PHY context is not used remove it. | |
3011 | */ | |
3012 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3013 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3014 | goto out_unlock; | |
3015 | ||
3016 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3017 | ||
3018 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3019 | mvmvif->phy_ctxt = phy_ctxt; | |
3020 | ||
3021 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3022 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3023 | goto out_unlock; | |
3024 | ||
3025 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3026 | goto schedule_time_event; | |
3027 | } | |
3028 | } | |
3029 | ||
3030 | /* Need to update the PHY context only if the ROC channel changed */ | |
3031 | if (channel == mvmvif->phy_ctxt->channel) | |
3032 | goto schedule_time_event; | |
3033 | ||
8ca151b5 | 3034 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3035 | |
31d385ae IP |
3036 | /* |
3037 | * Change the PHY context configuration as it is currently referenced | |
3038 | * only by the P2P Device MAC | |
3039 | */ | |
3040 | if (mvmvif->phy_ctxt->ref == 1) { | |
3041 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3042 | &chandef, 1, 1); | |
3043 | if (ret) | |
3044 | goto out_unlock; | |
3045 | } else { | |
3046 | /* | |
3047 | * The PHY context is shared with other MACs. Need to remove the | |
3048 | * P2P Device from the binding, allocate an new PHY context and | |
3049 | * create a new binding | |
3050 | */ | |
3051 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3052 | if (!phy_ctxt) { | |
3053 | ret = -ENOSPC; | |
3054 | goto out_unlock; | |
3055 | } | |
3056 | ||
3057 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3058 | 1, 1); | |
3059 | if (ret) { | |
3060 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3061 | goto out_unlock; | |
3062 | } | |
3063 | ||
3064 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3065 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3066 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3067 | goto out_unlock; | |
3068 | ||
3069 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3070 | ||
3071 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3072 | mvmvif->phy_ctxt = phy_ctxt; | |
3073 | ||
3074 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3075 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3076 | goto out_unlock; | |
3077 | ||
3078 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3079 | } | |
3080 | ||
3081 | schedule_time_event: | |
8ca151b5 | 3082 | /* Schedule the time events */ |
e635c797 | 3083 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3084 | |
31d385ae | 3085 | out_unlock: |
8ca151b5 JB |
3086 | mutex_unlock(&mvm->mutex); |
3087 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3088 | return ret; |
3089 | } | |
3090 | ||
3091 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3092 | { | |
3093 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3094 | ||
3095 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3096 | ||
3097 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3098 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3099 | mutex_unlock(&mvm->mutex); |
3100 | ||
3101 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3102 | return 0; | |
3103 | } | |
3104 | ||
b08c1d97 LC |
3105 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3106 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3107 | { |
fe0f2de3 IP |
3108 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3109 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3110 | int ret; |
3111 | ||
b08c1d97 LC |
3112 | lockdep_assert_held(&mvm->mutex); |
3113 | ||
53a9d61e | 3114 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3115 | |
fe0f2de3 IP |
3116 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3117 | if (!phy_ctxt) { | |
3118 | ret = -ENOSPC; | |
3119 | goto out; | |
3120 | } | |
8ca151b5 | 3121 | |
dcbc3e1a | 3122 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3123 | ctx->rx_chains_static, |
3124 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3125 | if (ret) { |
3126 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3127 | goto out; | |
3128 | } | |
3129 | ||
53a9d61e | 3130 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3131 | *phy_ctxt_id = phy_ctxt->id; |
3132 | out: | |
b08c1d97 LC |
3133 | return ret; |
3134 | } | |
3135 | ||
3136 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3137 | struct ieee80211_chanctx_conf *ctx) | |
3138 | { | |
3139 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3140 | int ret; | |
3141 | ||
3142 | mutex_lock(&mvm->mutex); | |
3143 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3144 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3145 | |
8ca151b5 JB |
3146 | return ret; |
3147 | } | |
3148 | ||
b08c1d97 LC |
3149 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3150 | struct ieee80211_chanctx_conf *ctx) | |
3151 | { | |
3152 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3153 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3154 | ||
3155 | lockdep_assert_held(&mvm->mutex); | |
3156 | ||
3157 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3158 | } | |
3159 | ||
8ca151b5 JB |
3160 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3161 | struct ieee80211_chanctx_conf *ctx) | |
3162 | { | |
3163 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3164 | |
3165 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3166 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3167 | mutex_unlock(&mvm->mutex); |
3168 | } | |
3169 | ||
3170 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3171 | struct ieee80211_chanctx_conf *ctx, | |
3172 | u32 changed) | |
3173 | { | |
3174 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3175 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3176 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3177 | |
31d385ae IP |
3178 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3179 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3180 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3181 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3182 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3183 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3184 | phy_ctxt->ref, changed)) | |
3185 | return; | |
3186 | ||
8ca151b5 | 3187 | mutex_lock(&mvm->mutex); |
4d66449a | 3188 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3189 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3190 | ctx->rx_chains_static, |
3191 | ctx->rx_chains_dynamic); | |
3192 | mutex_unlock(&mvm->mutex); | |
3193 | } | |
3194 | ||
b08c1d97 LC |
3195 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3196 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3197 | struct ieee80211_chanctx_conf *ctx, |
3198 | bool switching_chanctx) | |
8ca151b5 | 3199 | { |
fe0f2de3 IP |
3200 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3201 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3202 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3203 | int ret; | |
3204 | ||
b08c1d97 | 3205 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3206 | |
fe0f2de3 | 3207 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3208 | |
3209 | switch (vif->type) { | |
3210 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3211 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3212 | if (switching_chanctx) { | |
bd3398e2 AO |
3213 | mvmvif->ap_ibss_active = true; |
3214 | break; | |
3215 | } | |
5023d966 | 3216 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3217 | /* |
3218 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3219 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3220 | */ |
3221 | ret = 0; | |
b08c1d97 | 3222 | goto out; |
8ca151b5 | 3223 | case NL80211_IFTYPE_STATION: |
2533edce | 3224 | break; |
8ca151b5 | 3225 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3226 | /* always disable PS when a monitor interface is active */ |
3227 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3228 | break; |
3229 | default: | |
3230 | ret = -EINVAL; | |
b08c1d97 | 3231 | goto out; |
8ca151b5 JB |
3232 | } |
3233 | ||
3234 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3235 | if (ret) | |
b08c1d97 | 3236 | goto out; |
8ca151b5 JB |
3237 | |
3238 | /* | |
92d85562 AB |
3239 | * Power state must be updated before quotas, |
3240 | * otherwise fw will complain. | |
3241 | */ | |
999609f1 | 3242 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3243 | |
3244 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3245 | * interfaces. For the other types, the bss_info changed flow |
3246 | * will handle quota settings. | |
3247 | */ | |
3248 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3249 | mvmvif->monitor_active = true; |
0166230c | 3250 | ret = iwl_mvm_update_quotas(mvm, NULL); |
8ca151b5 JB |
3251 | if (ret) |
3252 | goto out_remove_binding; | |
3253 | } | |
3254 | ||
bd3398e2 | 3255 | /* Handle binding during CSA */ |
a57c688d | 3256 | if (vif->type == NL80211_IFTYPE_AP) { |
0166230c | 3257 | iwl_mvm_update_quotas(mvm, NULL); |
3dfd3a97 | 3258 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3259 | } |
3260 | ||
4741dd04 | 3261 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3262 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3263 | ||
3264 | /* iwl_mvm_protect_session() reads directly from the | |
3265 | * device (the system time), so make sure it is | |
3266 | * available. | |
3267 | */ | |
3268 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3269 | if (ret) | |
3270 | goto out_remove_binding; | |
3271 | ||
3272 | /* Protect the session to make sure we hear the first | |
3273 | * beacon on the new channel. | |
3274 | */ | |
3275 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3276 | vif->bss_conf.beacon_int / 2, | |
3277 | true); | |
3278 | ||
3279 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3280 | ||
a57c688d | 3281 | iwl_mvm_update_quotas(mvm, NULL); |
0ce04ce7 LC |
3282 | } |
3283 | ||
b08c1d97 | 3284 | goto out; |
8ca151b5 | 3285 | |
b08c1d97 | 3286 | out_remove_binding: |
8ca151b5 | 3287 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3288 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3289 | out: |
8ca151b5 JB |
3290 | if (ret) |
3291 | mvmvif->phy_ctxt = NULL; | |
3292 | return ret; | |
3293 | } | |
b08c1d97 LC |
3294 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3295 | struct ieee80211_vif *vif, | |
3296 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3297 | { |
3298 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3299 | int ret; |
8ca151b5 JB |
3300 | |
3301 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3302 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3303 | mutex_unlock(&mvm->mutex); |
3304 | ||
3305 | return ret; | |
3306 | } | |
3307 | ||
3308 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3309 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3310 | struct ieee80211_chanctx_conf *ctx, |
3311 | bool switching_chanctx) | |
b08c1d97 LC |
3312 | { |
3313 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3314 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3315 | |
3316 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3317 | |
3318 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3319 | ||
8ca151b5 | 3320 | switch (vif->type) { |
5023d966 | 3321 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3322 | goto out; |
8ca151b5 | 3323 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3324 | mvmvif->monitor_active = false; |
2533edce | 3325 | mvmvif->ps_disabled = false; |
8ca151b5 | 3326 | break; |
bd3398e2 AO |
3327 | case NL80211_IFTYPE_AP: |
3328 | /* This part is triggered only during CSA */ | |
4741dd04 | 3329 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3330 | goto out; |
bd3398e2 | 3331 | |
7ef0aab6 AO |
3332 | mvmvif->csa_countdown = false; |
3333 | ||
003e5236 AO |
3334 | /* Set CS bit on all the stations */ |
3335 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3336 | ||
3337 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3338 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3339 | ||
bd3398e2 | 3340 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3341 | break; |
3342 | case NL80211_IFTYPE_STATION: | |
3343 | if (!switching_chanctx) | |
3344 | break; | |
3345 | ||
3346 | disabled_vif = vif; | |
3347 | ||
3dfd3a97 | 3348 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3349 | break; |
8ca151b5 JB |
3350 | default: |
3351 | break; | |
3352 | } | |
3353 | ||
f0c97783 | 3354 | iwl_mvm_update_quotas(mvm, disabled_vif); |
1e1391ca | 3355 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3356 | |
b08c1d97 | 3357 | out: |
a11e144e | 3358 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3359 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3360 | } |
3361 | ||
3362 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3363 | struct ieee80211_vif *vif, | |
3364 | struct ieee80211_chanctx_conf *ctx) | |
3365 | { | |
3366 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3367 | ||
3368 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3369 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3370 | mutex_unlock(&mvm->mutex); |
3371 | } | |
3372 | ||
50cc9574 LC |
3373 | static int |
3374 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3375 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3376 | { |
b08c1d97 LC |
3377 | int ret; |
3378 | ||
b08c1d97 | 3379 | mutex_lock(&mvm->mutex); |
f0c97783 | 3380 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3381 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3382 | ||
3383 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3384 | if (ret) { | |
3385 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3386 | goto out_reassign; | |
3387 | } | |
3388 | ||
f0c97783 LC |
3389 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3390 | true); | |
b08c1d97 LC |
3391 | if (ret) { |
3392 | IWL_ERR(mvm, | |
3393 | "failed to assign new_ctx during channel switch\n"); | |
3394 | goto out_remove; | |
3395 | } | |
3396 | ||
f697267f AN |
3397 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3398 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3399 | iwl_mvm_teardown_tdls_peers(mvm); | |
3400 | ||
b08c1d97 LC |
3401 | goto out; |
3402 | ||
3403 | out_remove: | |
3404 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3405 | ||
3406 | out_reassign: | |
6fd1fb63 | 3407 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3408 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3409 | goto out_restart; | |
3410 | } | |
3411 | ||
6fd1fb63 LC |
3412 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3413 | true)) { | |
b08c1d97 LC |
3414 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3415 | goto out_restart; | |
3416 | } | |
3417 | ||
3418 | goto out; | |
3419 | ||
3420 | out_restart: | |
3421 | /* things keep failing, better restart the hw */ | |
3422 | iwl_mvm_nic_restart(mvm, false); | |
3423 | ||
3424 | out: | |
3425 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3426 | |
3427 | return ret; | |
3428 | } | |
3429 | ||
48a256e8 LC |
3430 | static int |
3431 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3432 | struct ieee80211_vif_chanctx_switch *vifs) | |
3433 | { | |
3434 | int ret; | |
3435 | ||
3436 | mutex_lock(&mvm->mutex); | |
3437 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3438 | ||
3439 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3440 | true); | |
3441 | if (ret) { | |
3442 | IWL_ERR(mvm, | |
3443 | "failed to assign new_ctx during channel switch\n"); | |
3444 | goto out_reassign; | |
3445 | } | |
3446 | ||
3447 | goto out; | |
3448 | ||
3449 | out_reassign: | |
3450 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3451 | true)) { | |
3452 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3453 | goto out_restart; | |
3454 | } | |
3455 | ||
3456 | goto out; | |
3457 | ||
3458 | out_restart: | |
3459 | /* things keep failing, better restart the hw */ | |
3460 | iwl_mvm_nic_restart(mvm, false); | |
3461 | ||
3462 | out: | |
3463 | mutex_unlock(&mvm->mutex); | |
3464 | ||
3465 | return ret; | |
3466 | } | |
3467 | ||
50cc9574 LC |
3468 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3469 | struct ieee80211_vif_chanctx_switch *vifs, | |
3470 | int n_vifs, | |
3471 | enum ieee80211_chanctx_switch_mode mode) | |
3472 | { | |
3473 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3474 | int ret; | |
3475 | ||
3476 | /* we only support a single-vif right now */ | |
3477 | if (n_vifs > 1) | |
3478 | return -EOPNOTSUPP; | |
3479 | ||
3480 | switch (mode) { | |
3481 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3482 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3483 | break; | |
3484 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3485 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3486 | break; |
3487 | default: | |
3488 | ret = -EOPNOTSUPP; | |
3489 | break; | |
3490 | } | |
3491 | ||
b08c1d97 LC |
3492 | return ret; |
3493 | } | |
3494 | ||
8ca151b5 JB |
3495 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3496 | struct ieee80211_sta *sta, | |
3497 | bool set) | |
3498 | { | |
3499 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3500 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3501 | |
3502 | if (!mvm_sta || !mvm_sta->vif) { | |
3503 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3504 | return -EINVAL; | |
3505 | } | |
3506 | ||
3507 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3508 | } | |
3509 | ||
507cadf2 DS |
3510 | #ifdef CONFIG_NL80211_TESTMODE |
3511 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3512 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3513 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3514 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3515 | }; |
3516 | ||
3517 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3518 | struct ieee80211_vif *vif, | |
3519 | void *data, int len) | |
3520 | { | |
3521 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3522 | int err; | |
3523 | u32 noa_duration; | |
3524 | ||
3525 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
3526 | if (err) | |
3527 | return err; | |
3528 | ||
3529 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3530 | return -EINVAL; | |
3531 | ||
3532 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3533 | case IWL_MVM_TM_CMD_SET_NOA: | |
3534 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3535 | !vif->bss_conf.enable_beacon || | |
3536 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3537 | return -EINVAL; | |
3538 | ||
3539 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3540 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3541 | return -EINVAL; | |
3542 | ||
3543 | mvm->noa_duration = noa_duration; | |
3544 | mvm->noa_vif = vif; | |
3545 | ||
0166230c | 3546 | return iwl_mvm_update_quotas(mvm, NULL); |
f6c6ad42 JB |
3547 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3548 | /* must be associated client vif - ignore authorized */ | |
3549 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3550 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3551 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3552 | return -EINVAL; | |
3553 | ||
3554 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3555 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3556 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3557 | } |
3558 | ||
3559 | return -EOPNOTSUPP; | |
3560 | } | |
3561 | ||
3562 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3563 | struct ieee80211_vif *vif, | |
3564 | void *data, int len) | |
3565 | { | |
3566 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3567 | int err; | |
3568 | ||
3569 | mutex_lock(&mvm->mutex); | |
3570 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3571 | mutex_unlock(&mvm->mutex); | |
3572 | ||
3573 | return err; | |
3574 | } | |
3575 | #endif | |
3576 | ||
622e3f9b LC |
3577 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3578 | struct ieee80211_vif *vif, | |
3579 | struct ieee80211_channel_switch *chsw) | |
3580 | { | |
3581 | /* By implementing this operation, we prevent mac80211 from | |
3582 | * starting its own channel switch timer, so that we can call | |
3583 | * ieee80211_chswitch_done() ourselves at the right time | |
3584 | * (which is when the absence time event starts). | |
3585 | */ | |
3586 | ||
3587 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3588 | "dummy channel switch op\n"); | |
3589 | } | |
3590 | ||
f028905c LC |
3591 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3592 | struct ieee80211_vif *vif, | |
3593 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3594 | { |
3595 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3596 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3597 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3598 | u32 apply_time; |
f028905c | 3599 | int ret; |
bd3398e2 AO |
3600 | |
3601 | mutex_lock(&mvm->mutex); | |
664322fa | 3602 | |
6b20d774 | 3603 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3604 | chsw->chandef.center_freq1); |
6b20d774 | 3605 | |
f35d9c55 EG |
3606 | iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH, |
3607 | NULL, 0); | |
3608 | ||
6b20d774 LC |
3609 | switch (vif->type) { |
3610 | case NL80211_IFTYPE_AP: | |
3611 | csa_vif = | |
3612 | rcu_dereference_protected(mvm->csa_vif, | |
3613 | lockdep_is_held(&mvm->mutex)); | |
3614 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3615 | "Another CSA is already in progress")) { | |
3616 | ret = -EBUSY; | |
3617 | goto out_unlock; | |
3618 | } | |
3619 | ||
3620 | rcu_assign_pointer(mvm->csa_vif, vif); | |
7ef0aab6 | 3621 | |
7ef0aab6 AO |
3622 | if (WARN_ONCE(mvmvif->csa_countdown, |
3623 | "Previous CSA countdown didn't complete")) { | |
3624 | ret = -EBUSY; | |
3625 | goto out_unlock; | |
3626 | } | |
3627 | ||
6b20d774 | 3628 | break; |
dc88b4ba | 3629 | case NL80211_IFTYPE_STATION: |
4500e133 LC |
3630 | /* Schedule the time event to a bit before beacon 1, |
3631 | * to make sure we're in the new channel when the | |
3632 | * GO/AP arrives. | |
3633 | */ | |
3634 | apply_time = chsw->device_timestamp + | |
3635 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3636 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3637 | |
3638 | if (chsw->block_tx) | |
3639 | iwl_mvm_csa_client_absent(mvm, vif); | |
3640 | ||
4500e133 | 3641 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3642 | apply_time); |
c6e0a3e0 LC |
3643 | if (mvmvif->bf_data.bf_enabled) { |
3644 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3645 | if (ret) | |
3646 | goto out_unlock; | |
3647 | } | |
3648 | ||
dc88b4ba | 3649 | break; |
6b20d774 LC |
3650 | default: |
3651 | break; | |
3652 | } | |
bd3398e2 | 3653 | |
f6c34820 LC |
3654 | mvmvif->ps_disabled = true; |
3655 | ||
3656 | ret = iwl_mvm_power_update_ps(mvm); | |
3657 | if (ret) | |
3658 | goto out_unlock; | |
f028905c | 3659 | |
e198f5e7 AN |
3660 | /* we won't be on this channel any longer */ |
3661 | iwl_mvm_teardown_tdls_peers(mvm); | |
3662 | ||
bd3398e2 AO |
3663 | out_unlock: |
3664 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3665 | |
3666 | return ret; | |
bd3398e2 AO |
3667 | } |
3668 | ||
f6c34820 LC |
3669 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3670 | struct ieee80211_vif *vif) | |
3671 | { | |
3672 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3673 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3674 | int ret; | |
3675 | ||
3676 | mutex_lock(&mvm->mutex); | |
3677 | ||
a57c688d LC |
3678 | if (vif->type == NL80211_IFTYPE_STATION) { |
3679 | struct iwl_mvm_sta *mvmsta; | |
3680 | ||
3681 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3682 | mvmvif->ap_sta_id); | |
3683 | ||
3684 | if (WARN_ON(!mvmsta)) { | |
3685 | ret = -EIO; | |
3686 | goto out_unlock; | |
3687 | } | |
3688 | ||
3689 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
3690 | ||
3691 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
3692 | |
3693 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
3694 | if (ret) | |
3695 | goto out_unlock; | |
686e7fe1 LC |
3696 | |
3697 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
3698 | } |
3699 | ||
f6c34820 LC |
3700 | mvmvif->ps_disabled = false; |
3701 | ||
3702 | ret = iwl_mvm_power_update_ps(mvm); | |
3703 | ||
a57c688d | 3704 | out_unlock: |
f6c34820 LC |
3705 | mutex_unlock(&mvm->mutex); |
3706 | ||
3707 | return ret; | |
3708 | } | |
3709 | ||
c5b0e7c0 EG |
3710 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
3711 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
3712 | { | |
3713 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3714 | struct iwl_mvm_vif *mvmvif; | |
3715 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
3716 | struct ieee80211_sta *sta; |
3717 | int i; | |
3718 | u32 msk = 0; | |
c5b0e7c0 EG |
3719 | |
3720 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
3721 | return; | |
3722 | ||
3723 | mutex_lock(&mvm->mutex); | |
3724 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 3725 | |
a0f6bf2a AN |
3726 | /* flush the AP-station and all TDLS peers */ |
3727 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
3728 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
3729 | lockdep_is_held(&mvm->mutex)); | |
3730 | if (IS_ERR_OR_NULL(sta)) | |
3731 | continue; | |
3732 | ||
3733 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3734 | if (mvmsta->vif != vif) | |
3735 | continue; | |
3736 | ||
3737 | /* make sure only TDLS peers or the AP are flushed */ | |
3738 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
3739 | ||
3740 | msk |= mvmsta->tfd_queue_msk; | |
480acbce | 3741 | } |
c5b0e7c0 | 3742 | |
6d440b25 EG |
3743 | if (drop) { |
3744 | if (iwl_mvm_flush_tx_path(mvm, msk, true)) | |
3745 | IWL_ERR(mvm, "flush request fail\n"); | |
3746 | mutex_unlock(&mvm->mutex); | |
3747 | } else { | |
3748 | mutex_unlock(&mvm->mutex); | |
4e6c48e0 | 3749 | |
6d440b25 EG |
3750 | /* this can take a while, and we may need/want other operations |
3751 | * to succeed while doing this, so do it without the mutex held | |
3752 | */ | |
3753 | iwl_trans_wait_tx_queue_empty(mvm->trans, msk); | |
3754 | } | |
c5b0e7c0 EG |
3755 | } |
3756 | ||
91a8bcde JB |
3757 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
3758 | struct survey_info *survey) | |
3759 | { | |
3760 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3761 | int ret; | |
3762 | ||
3763 | memset(survey, 0, sizeof(*survey)); | |
3764 | ||
3765 | /* only support global statistics right now */ | |
3766 | if (idx != 0) | |
3767 | return -ENOENT; | |
3768 | ||
3769 | if (!(mvm->fw->ucode_capa.capa[0] & | |
3770 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
3771 | return -ENOENT; | |
3772 | ||
3773 | mutex_lock(&mvm->mutex); | |
3774 | ||
3775 | if (mvm->ucode_loaded) { | |
33cef925 | 3776 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
3777 | if (ret) |
3778 | goto out; | |
3779 | } | |
3780 | ||
3781 | survey->filled = SURVEY_INFO_TIME | | |
3782 | SURVEY_INFO_TIME_RX | | |
3783 | SURVEY_INFO_TIME_TX | | |
3784 | SURVEY_INFO_TIME_SCAN; | |
3785 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
3786 | mvm->radio_stats.on_time_rf; | |
3787 | do_div(survey->time, USEC_PER_MSEC); | |
3788 | ||
3789 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
3790 | mvm->radio_stats.rx_time; | |
3791 | do_div(survey->time_rx, USEC_PER_MSEC); | |
3792 | ||
3793 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
3794 | mvm->radio_stats.tx_time; | |
3795 | do_div(survey->time_tx, USEC_PER_MSEC); | |
3796 | ||
3797 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
3798 | mvm->radio_stats.on_time_scan; | |
3799 | do_div(survey->time_scan, USEC_PER_MSEC); | |
3800 | ||
3801 | out: | |
3802 | mutex_unlock(&mvm->mutex); | |
3803 | return ret; | |
3804 | } | |
3805 | ||
33cef925 JB |
3806 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
3807 | struct ieee80211_vif *vif, | |
3808 | struct ieee80211_sta *sta, | |
3809 | struct station_info *sinfo) | |
3810 | { | |
3811 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3812 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3813 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3814 | ||
3815 | if (!(mvm->fw->ucode_capa.capa[0] & | |
3816 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
3817 | return; | |
3818 | ||
3819 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
3820 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
3821 | return; | |
3822 | ||
3823 | if (!vif->bss_conf.assoc) | |
3824 | return; | |
3825 | ||
3826 | mutex_lock(&mvm->mutex); | |
3827 | ||
3828 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
3829 | goto unlock; | |
3830 | ||
3831 | if (iwl_mvm_request_statistics(mvm, false)) | |
3832 | goto unlock; | |
3833 | ||
3834 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
3835 | mvmvif->beacon_stats.accu_num_beacons; | |
3836 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
3837 | if (mvmvif->beacon_stats.avg_signal) { | |
3838 | /* firmware only reports a value after RXing a few beacons */ | |
3839 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
3840 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
3841 | } | |
3842 | unlock: | |
3843 | mutex_unlock(&mvm->mutex); | |
3844 | } | |
3845 | ||
e5209263 | 3846 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
3847 | .tx = iwl_mvm_mac_tx, |
3848 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
3849 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 3850 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
3851 | .stop = iwl_mvm_mac_stop, |
3852 | .add_interface = iwl_mvm_mac_add_interface, | |
3853 | .remove_interface = iwl_mvm_mac_remove_interface, | |
3854 | .config = iwl_mvm_mac_config, | |
e59647ea | 3855 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
3856 | .configure_filter = iwl_mvm_configure_filter, |
3857 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
3858 | .hw_scan = iwl_mvm_mac_hw_scan, | |
3859 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 3860 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
3861 | .sta_state = iwl_mvm_mac_sta_state, |
3862 | .sta_notify = iwl_mvm_mac_sta_notify, | |
3863 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 3864 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 3865 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 3866 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
3867 | .conf_tx = iwl_mvm_mac_conf_tx, |
3868 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 3869 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 3870 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
3871 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
3872 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
3873 | .set_key = iwl_mvm_mac_set_key, |
3874 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
3875 | .remain_on_channel = iwl_mvm_roc, | |
3876 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
3877 | .add_chanctx = iwl_mvm_add_chanctx, |
3878 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
3879 | .change_chanctx = iwl_mvm_change_chanctx, | |
3880 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
3881 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 3882 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 3883 | |
5023d966 JB |
3884 | .start_ap = iwl_mvm_start_ap_ibss, |
3885 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
3886 | .join_ibss = iwl_mvm_start_ap_ibss, | |
3887 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
3888 | |
3889 | .set_tim = iwl_mvm_set_tim, | |
3890 | ||
622e3f9b | 3891 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 3892 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 3893 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 3894 | |
1d3c3f63 AN |
3895 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
3896 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
3897 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
3898 | ||
507cadf2 DS |
3899 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
3900 | ||
8ca151b5 JB |
3901 | #ifdef CONFIG_PM_SLEEP |
3902 | /* look at d3.c */ | |
3903 | .suspend = iwl_mvm_suspend, | |
3904 | .resume = iwl_mvm_resume, | |
3905 | .set_wakeup = iwl_mvm_set_wakeup, | |
3906 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
3907 | #if IS_ENABLED(CONFIG_IPV6) | |
3908 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
3909 | #endif | |
3910 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
3911 | #endif | |
91a8bcde | 3912 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 3913 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
8ca151b5 | 3914 | }; |