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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" | |
8ca151b5 | 83 | #include "iwl-phy-db.h" |
507cadf2 | 84 | #include "testmode.h" |
655e6d6d EG |
85 | #include "iwl-fw-error-dump.h" |
86 | #include "iwl-prph.h" | |
363039be | 87 | #include "iwl-csr.h" |
88931cc9 | 88 | #include "iwl-nvm-parse.h" |
8ca151b5 JB |
89 | |
90 | static const struct ieee80211_iface_limit iwl_mvm_limits[] = { | |
91 | { | |
92 | .max = 1, | |
8eb38710 | 93 | .types = BIT(NL80211_IFTYPE_STATION), |
8ca151b5 | 94 | }, |
3c15a0fb JB |
95 | { |
96 | .max = 1, | |
8eb38710 IP |
97 | .types = BIT(NL80211_IFTYPE_AP) | |
98 | BIT(NL80211_IFTYPE_P2P_CLIENT) | | |
3c15a0fb JB |
99 | BIT(NL80211_IFTYPE_P2P_GO), |
100 | }, | |
101 | { | |
102 | .max = 1, | |
103 | .types = BIT(NL80211_IFTYPE_P2P_DEVICE), | |
104 | }, | |
8ca151b5 JB |
105 | }; |
106 | ||
107 | static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = { | |
108 | { | |
2624a5ca | 109 | .num_different_channels = 2, |
8ca151b5 JB |
110 | .max_interfaces = 3, |
111 | .limits = iwl_mvm_limits, | |
112 | .n_limits = ARRAY_SIZE(iwl_mvm_limits), | |
113 | }, | |
114 | }; | |
115 | ||
f0c2646a JB |
116 | #ifdef CONFIG_PM_SLEEP |
117 | static const struct nl80211_wowlan_tcp_data_token_feature | |
118 | iwl_mvm_wowlan_tcp_token_feature = { | |
119 | .min_len = 0, | |
120 | .max_len = 255, | |
121 | .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS, | |
122 | }; | |
123 | ||
124 | static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { | |
125 | .tok = &iwl_mvm_wowlan_tcp_token_feature, | |
126 | .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN - | |
127 | sizeof(struct ethhdr) - | |
128 | sizeof(struct iphdr) - | |
129 | sizeof(struct tcphdr), | |
130 | .data_interval_max = 65535, /* __le16 in API */ | |
131 | .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN - | |
132 | sizeof(struct ethhdr) - | |
133 | sizeof(struct iphdr) - | |
134 | sizeof(struct tcphdr), | |
135 | .seq = true, | |
136 | }; | |
137 | #endif | |
138 | ||
77736923 | 139 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
2ee8f021 EP |
140 | /* |
141 | * Use the reserved field to indicate magic values. | |
142 | * these values will only be used internally by the driver, | |
143 | * and won't make it to the fw (reserved will be 0). | |
144 | * BC_FILTER_MAGIC_IP - configure the val of this attribute to | |
145 | * be the vif's ip address. in case there is not a single | |
146 | * ip address (0, or more than 1), this attribute will | |
147 | * be skipped. | |
148 | * BC_FILTER_MAGIC_MAC - set the val of this attribute to | |
149 | * the LSB bytes of the vif's mac address | |
150 | */ | |
151 | enum { | |
152 | BC_FILTER_MAGIC_NONE = 0, | |
153 | BC_FILTER_MAGIC_IP, | |
154 | BC_FILTER_MAGIC_MAC, | |
155 | }; | |
156 | ||
77736923 EP |
157 | static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { |
158 | { | |
159 | /* arp */ | |
160 | .discard = 0, | |
161 | .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, | |
162 | .attrs = { | |
163 | { | |
164 | /* frame type - arp, hw type - ethernet */ | |
165 | .offset_type = | |
166 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
167 | .offset = sizeof(rfc1042_header), | |
168 | .val = cpu_to_be32(0x08060001), | |
169 | .mask = cpu_to_be32(0xffffffff), | |
170 | }, | |
2ee8f021 EP |
171 | { |
172 | /* arp dest ip */ | |
173 | .offset_type = | |
174 | BCAST_FILTER_OFFSET_PAYLOAD_START, | |
175 | .offset = sizeof(rfc1042_header) + 2 + | |
176 | sizeof(struct arphdr) + | |
177 | ETH_ALEN + sizeof(__be32) + | |
178 | ETH_ALEN, | |
179 | .mask = cpu_to_be32(0xffffffff), | |
180 | /* mark it as special field */ | |
181 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), | |
182 | }, | |
183 | }, | |
184 | }, | |
185 | { | |
186 | /* dhcp offer bcast */ | |
187 | .discard = 0, | |
188 | .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, | |
189 | .attrs = { | |
190 | { | |
191 | /* udp dest port - 68 (bootp client)*/ | |
192 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
193 | .offset = offsetof(struct udphdr, dest), | |
194 | .val = cpu_to_be32(0x00440000), | |
195 | .mask = cpu_to_be32(0xffff0000), | |
196 | }, | |
197 | { | |
198 | /* dhcp - lsb bytes of client hw address */ | |
199 | .offset_type = BCAST_FILTER_OFFSET_IP_END, | |
200 | .offset = 38, | |
201 | .mask = cpu_to_be32(0xffffffff), | |
202 | /* mark it as special field */ | |
203 | .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), | |
204 | }, | |
77736923 EP |
205 | }, |
206 | }, | |
207 | /* last filter must be empty */ | |
208 | {}, | |
209 | }; | |
210 | #endif | |
211 | ||
7498cf4c EP |
212 | void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
213 | { | |
7bb426ea | 214 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
215 | return; |
216 | ||
217 | IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
218 | spin_lock_bh(&mvm->refs_lock); |
219 | mvm->refs[ref_type]++; | |
220 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
221 | iwl_trans_ref(mvm->trans); |
222 | } | |
223 | ||
224 | void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) | |
225 | { | |
7bb426ea | 226 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
227 | return; |
228 | ||
229 | IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); | |
576eeee9 EP |
230 | spin_lock_bh(&mvm->refs_lock); |
231 | WARN_ON(!mvm->refs[ref_type]--); | |
232 | spin_unlock_bh(&mvm->refs_lock); | |
7498cf4c EP |
233 | iwl_trans_unref(mvm->trans); |
234 | } | |
235 | ||
576eeee9 EP |
236 | static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm, |
237 | enum iwl_mvm_ref_type except_ref) | |
7498cf4c | 238 | { |
576eeee9 | 239 | int i, j; |
7498cf4c | 240 | |
7bb426ea | 241 | if (!iwl_mvm_is_d0i3_supported(mvm)) |
7498cf4c EP |
242 | return; |
243 | ||
576eeee9 EP |
244 | spin_lock_bh(&mvm->refs_lock); |
245 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
246 | if (except_ref == i || !mvm->refs[i]) | |
7498cf4c EP |
247 | continue; |
248 | ||
576eeee9 EP |
249 | IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n", |
250 | i, mvm->refs[i]); | |
251 | for (j = 0; j < mvm->refs[i]; j++) | |
252 | iwl_trans_unref(mvm->trans); | |
253 | mvm->refs[i] = 0; | |
7498cf4c | 254 | } |
576eeee9 | 255 | spin_unlock_bh(&mvm->refs_lock); |
7498cf4c EP |
256 | } |
257 | ||
f4cf8680 EP |
258 | bool iwl_mvm_ref_taken(struct iwl_mvm *mvm) |
259 | { | |
260 | int i; | |
261 | bool taken = false; | |
262 | ||
263 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
264 | return true; | |
265 | ||
266 | spin_lock_bh(&mvm->refs_lock); | |
267 | for (i = 0; i < IWL_MVM_REF_COUNT; i++) { | |
268 | if (mvm->refs[i]) { | |
269 | taken = true; | |
270 | break; | |
271 | } | |
272 | } | |
273 | spin_unlock_bh(&mvm->refs_lock); | |
274 | ||
275 | return taken; | |
276 | } | |
277 | ||
576eeee9 | 278 | int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) |
d40fc489 GG |
279 | { |
280 | iwl_mvm_ref(mvm, ref_type); | |
281 | ||
282 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
283 | !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), | |
284 | HZ)) { | |
285 | WARN_ON_ONCE(1); | |
286 | iwl_mvm_unref(mvm, ref_type); | |
287 | return -EIO; | |
288 | } | |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
fe0f2de3 IP |
293 | static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) |
294 | { | |
295 | int i; | |
296 | ||
297 | memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); | |
298 | for (i = 0; i < NUM_PHY_CTX; i++) { | |
299 | mvm->phy_ctxts[i].id = i; | |
300 | mvm->phy_ctxts[i].ref = 0; | |
301 | } | |
302 | } | |
303 | ||
88931cc9 | 304 | struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy, |
8ba2d7a1 | 305 | const char *alpha2, |
47c8b154 JD |
306 | enum iwl_mcc_source src_id, |
307 | bool *changed) | |
88931cc9 AN |
308 | { |
309 | struct ieee80211_regdomain *regd = NULL; | |
310 | struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); | |
311 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
312 | struct iwl_mcc_update_resp *resp; | |
313 | ||
314 | IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2); | |
315 | ||
8ba2d7a1 | 316 | lockdep_assert_held(&mvm->mutex); |
88931cc9 | 317 | |
8ba2d7a1 | 318 | resp = iwl_mvm_update_mcc(mvm, alpha2, src_id); |
88931cc9 AN |
319 | if (IS_ERR_OR_NULL(resp)) { |
320 | IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n", | |
b8c474d9 | 321 | PTR_ERR_OR_ZERO(resp)); |
8ba2d7a1 | 322 | goto out; |
88931cc9 AN |
323 | } |
324 | ||
47c8b154 JD |
325 | if (changed) |
326 | *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE); | |
327 | ||
162ee3c9 | 328 | regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg, |
88931cc9 AN |
329 | __le32_to_cpu(resp->n_channels), |
330 | resp->channels, | |
331 | __le16_to_cpu(resp->mcc)); | |
8ba2d7a1 EH |
332 | /* Store the return source id */ |
333 | src_id = resp->source_id; | |
88931cc9 AN |
334 | kfree(resp); |
335 | if (IS_ERR_OR_NULL(regd)) { | |
336 | IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n", | |
b8c474d9 | 337 | PTR_ERR_OR_ZERO(regd)); |
8ba2d7a1 | 338 | goto out; |
88931cc9 AN |
339 | } |
340 | ||
8ba2d7a1 EH |
341 | IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n", |
342 | regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id); | |
88931cc9 | 343 | mvm->lar_regdom_set = true; |
8ba2d7a1 | 344 | mvm->mcc_src = src_id; |
88931cc9 | 345 | |
8ba2d7a1 | 346 | out: |
88931cc9 AN |
347 | return regd; |
348 | } | |
349 | ||
47c8b154 JD |
350 | void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm) |
351 | { | |
352 | bool changed; | |
353 | struct ieee80211_regdomain *regd; | |
354 | ||
355 | if (!iwl_mvm_is_lar_supported(mvm)) | |
356 | return; | |
357 | ||
358 | regd = iwl_mvm_get_current_regdomain(mvm, &changed); | |
359 | if (!IS_ERR_OR_NULL(regd)) { | |
360 | /* only update the regulatory core if changed */ | |
361 | if (changed) | |
362 | regulatory_set_wiphy_regd(mvm->hw->wiphy, regd); | |
363 | ||
364 | kfree(regd); | |
365 | } | |
366 | } | |
367 | ||
368 | struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm, | |
369 | bool *changed) | |
8ba2d7a1 EH |
370 | { |
371 | return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ", | |
372 | iwl_mvm_is_wifi_mcc_supported(mvm) ? | |
373 | MCC_SOURCE_GET_CURRENT : | |
47c8b154 | 374 | MCC_SOURCE_OLD_FW, changed); |
8ba2d7a1 EH |
375 | } |
376 | ||
377 | int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm) | |
378 | { | |
379 | enum iwl_mcc_source used_src; | |
380 | struct ieee80211_regdomain *regd; | |
b6e160ab AN |
381 | int ret; |
382 | bool changed; | |
8ba2d7a1 EH |
383 | const struct ieee80211_regdomain *r = |
384 | rtnl_dereference(mvm->hw->wiphy->regd); | |
385 | ||
386 | if (!r) | |
b6e160ab | 387 | return -ENOENT; |
8ba2d7a1 EH |
388 | |
389 | /* save the last source in case we overwrite it below */ | |
390 | used_src = mvm->mcc_src; | |
391 | if (iwl_mvm_is_wifi_mcc_supported(mvm)) { | |
392 | /* Notify the firmware we support wifi location updates */ | |
47c8b154 | 393 | regd = iwl_mvm_get_current_regdomain(mvm, NULL); |
8ba2d7a1 EH |
394 | if (!IS_ERR_OR_NULL(regd)) |
395 | kfree(regd); | |
396 | } | |
397 | ||
398 | /* Now set our last stored MCC and source */ | |
b6e160ab AN |
399 | regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src, |
400 | &changed); | |
8ba2d7a1 EH |
401 | if (IS_ERR_OR_NULL(regd)) |
402 | return -EIO; | |
403 | ||
b6e160ab AN |
404 | /* update cfg80211 if the regdomain was changed */ |
405 | if (changed) | |
406 | ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd); | |
407 | else | |
408 | ret = 0; | |
8ba2d7a1 | 409 | |
b6e160ab AN |
410 | kfree(regd); |
411 | return ret; | |
8ba2d7a1 EH |
412 | } |
413 | ||
8ca151b5 JB |
414 | int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) |
415 | { | |
416 | struct ieee80211_hw *hw = mvm->hw; | |
831e85f3 | 417 | int num_mac, ret, i; |
8ca151b5 JB |
418 | |
419 | /* Tell mac80211 our characteristics */ | |
420 | hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
421 | IEEE80211_HW_SPECTRUM_MGMT | | |
422 | IEEE80211_HW_REPORTS_TX_ACK_STATUS | | |
423 | IEEE80211_HW_QUEUE_CONTROL | | |
424 | IEEE80211_HW_WANT_MONITOR_VIF | | |
8ca151b5 JB |
425 | IEEE80211_HW_SUPPORTS_PS | |
426 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | | |
d2931bbd | 427 | IEEE80211_HW_AMPDU_AGGREGATION | |
d64048ed | 428 | IEEE80211_HW_TIMING_BEACON_ONLY | |
147fc9be | 429 | IEEE80211_HW_CONNECTION_MONITOR | |
b71d9c8a | 430 | IEEE80211_HW_CHANCTX_STA_CSA | |
0d060384 | 431 | IEEE80211_HW_SUPPORT_FAST_XMIT | |
b71d9c8a | 432 | IEEE80211_HW_SUPPORTS_CLONED_SKBS; |
8ca151b5 | 433 | |
19e737c9 | 434 | hw->queues = mvm->first_agg_queue; |
398e8c6c | 435 | hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; |
7b1dd048 EG |
436 | hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | |
437 | IEEE80211_RADIOTAP_MCS_HAVE_STBC; | |
339b3086 ES |
438 | hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC | |
439 | IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED; | |
8ca151b5 | 440 | hw->rate_control_algorithm = "iwl-mvm-rs"; |
848955cc JB |
441 | hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES; |
442 | hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; | |
8ca151b5 JB |
443 | |
444 | /* | |
445 | * Enable 11w if advertised by firmware and software crypto | |
446 | * is not enabled (as the firmware will interpret some mgmt | |
447 | * packets, so enabling it with software crypto isn't safe) | |
448 | */ | |
449 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP && | |
450 | !iwlwifi_mod_params.sw_crypto) | |
451 | hw->flags |= IEEE80211_HW_MFP_CAPABLE; | |
452 | ||
1f940386 LC |
453 | hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS; |
454 | hw->wiphy->features |= | |
455 | NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | | |
3db93420 JB |
456 | NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | |
457 | NL80211_FEATURE_ND_RANDOM_MAC_ADDR; | |
fb98be5e | 458 | |
8ca151b5 JB |
459 | hw->sta_data_size = sizeof(struct iwl_mvm_sta); |
460 | hw->vif_data_size = sizeof(struct iwl_mvm_vif); | |
fe0f2de3 | 461 | hw->chanctx_data_size = sizeof(u16); |
8ca151b5 JB |
462 | |
463 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | | |
3c15a0fb JB |
464 | BIT(NL80211_IFTYPE_P2P_CLIENT) | |
465 | BIT(NL80211_IFTYPE_AP) | | |
466 | BIT(NL80211_IFTYPE_P2P_GO) | | |
c13b1725 EG |
467 | BIT(NL80211_IFTYPE_P2P_DEVICE) | |
468 | BIT(NL80211_IFTYPE_ADHOC); | |
5023d966 | 469 | |
a2f73b6c | 470 | hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; |
8ba2d7a1 EH |
471 | hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR; |
472 | if (iwl_mvm_is_lar_supported(mvm)) | |
473 | hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED; | |
474 | else | |
475 | hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | | |
476 | REGULATORY_DISABLE_BEACON_HINTS; | |
8ca151b5 | 477 | |
3e56eadf JB |
478 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) |
479 | hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; | |
480 | ||
94bbed72 | 481 | hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; |
bd3398e2 | 482 | |
8ca151b5 JB |
483 | hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; |
484 | hw->wiphy->n_iface_combinations = | |
485 | ARRAY_SIZE(iwl_mvm_iface_combinations); | |
486 | ||
c451e6d4 | 487 | hw->wiphy->max_remain_on_channel_duration = 10000; |
8ca151b5 | 488 | hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
f1a68542 EG |
489 | /* we can compensate an offset of up to 3 channels = 15 MHz */ |
490 | hw->wiphy->max_adj_channel_rssi_comp = 3 * 5; | |
8ca151b5 JB |
491 | |
492 | /* Extract MAC address */ | |
493 | memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN); | |
494 | hw->wiphy->addresses = mvm->addresses; | |
495 | hw->wiphy->n_addresses = 1; | |
831e85f3 IP |
496 | |
497 | /* Extract additional MAC addresses if available */ | |
498 | num_mac = (mvm->nvm_data->n_hw_addrs > 1) ? | |
499 | min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1; | |
500 | ||
501 | for (i = 1; i < num_mac; i++) { | |
502 | memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr, | |
8ca151b5 | 503 | ETH_ALEN); |
831e85f3 | 504 | mvm->addresses[i].addr[5]++; |
8ca151b5 JB |
505 | hw->wiphy->n_addresses++; |
506 | } | |
507 | ||
fe0f2de3 IP |
508 | iwl_mvm_reset_phy_ctxts(mvm); |
509 | ||
999d2568 | 510 | hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); |
20f1a5de | 511 | |
8ca151b5 JB |
512 | hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
513 | ||
c7d42480 | 514 | BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); |
507e4cda LC |
515 | BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || |
516 | IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); | |
517 | ||
518 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) | |
519 | mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS; | |
520 | else | |
521 | mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS; | |
522 | ||
8ca151b5 JB |
523 | if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) |
524 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = | |
525 | &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ]; | |
3d44eebf | 526 | if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) { |
8ca151b5 JB |
527 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
528 | &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; | |
529 | ||
c9faccc9 ES |
530 | if ((mvm->fw->ucode_capa.capa[0] & |
531 | IWL_UCODE_TLV_CAPA_BEAMFORMER) && | |
532 | (mvm->fw->ucode_capa.api[0] & | |
533 | IWL_UCODE_TLV_API_LQ_SS_PARAMS)) | |
3d44eebf ES |
534 | hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= |
535 | IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; | |
536 | } | |
537 | ||
8ca151b5 JB |
538 | hw->wiphy->hw_version = mvm->trans->hw_id; |
539 | ||
ade50652 | 540 | if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) |
8ca151b5 JB |
541 | hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
542 | else | |
543 | hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; | |
544 | ||
9954b37c EG |
545 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; |
546 | hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; | |
547 | hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; | |
548 | /* we create the 802.11 header and zero length SSID IE. */ | |
549 | hw->wiphy->max_sched_scan_ie_len = | |
550 | SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; | |
35a000b7 | 551 | |
8ca151b5 | 552 | hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | |
ab480030 | 553 | NL80211_FEATURE_LOW_PRIORITY_SCAN | |
0d8614b4 EP |
554 | NL80211_FEATURE_P2P_GO_OPPPS | |
555 | NL80211_FEATURE_DYNAMIC_SMPS | | |
9b5452fd EG |
556 | NL80211_FEATURE_STATIC_SMPS | |
557 | NL80211_FEATURE_SUPPORTS_WMM_ADMISSION; | |
8ca151b5 | 558 | |
f1daa00e AO |
559 | if (mvm->fw->ucode_capa.capa[0] & |
560 | IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT) | |
561 | hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION; | |
226bcd48 AK |
562 | if (mvm->fw->ucode_capa.capa[0] & |
563 | IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT) | |
564 | hw->wiphy->features |= NL80211_FEATURE_QUIET; | |
f1daa00e | 565 | |
73897bd1 AO |
566 | if (mvm->fw->ucode_capa.capa[0] & |
567 | IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT) | |
568 | hw->wiphy->features |= | |
569 | NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES; | |
570 | ||
571 | if (mvm->fw->ucode_capa.capa[0] & | |
572 | IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT) | |
573 | hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES; | |
574 | ||
8ca151b5 JB |
575 | mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
576 | ||
e36e5433 | 577 | /* currently FW API supports only one optional cipher scheme */ |
9ddca860 | 578 | if (mvm->fw->cs[0].cipher) { |
e36e5433 | 579 | mvm->hw->n_cipher_schemes = 1; |
9ddca860 | 580 | mvm->hw->cipher_schemes = &mvm->fw->cs[0]; |
e36e5433 MS |
581 | } |
582 | ||
8ca151b5 | 583 | #ifdef CONFIG_PM_SLEEP |
d15a747f EP |
584 | if (iwl_mvm_is_d0i3_supported(mvm) && |
585 | device_can_wakeup(mvm->trans->dev)) { | |
586 | mvm->wowlan.flags = WIPHY_WOWLAN_ANY; | |
587 | hw->wiphy->wowlan = &mvm->wowlan; | |
91742449 EP |
588 | } |
589 | ||
590 | if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && | |
8ca151b5 JB |
591 | mvm->trans->ops->d3_suspend && |
592 | mvm->trans->ops->d3_resume && | |
593 | device_can_wakeup(mvm->trans->dev)) { | |
91742449 EP |
594 | mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT | |
595 | WIPHY_WOWLAN_DISCONNECT | | |
596 | WIPHY_WOWLAN_EAP_IDENTITY_REQ | | |
597 | WIPHY_WOWLAN_RFKILL_RELEASE | | |
598 | WIPHY_WOWLAN_NET_DETECT; | |
8ca151b5 | 599 | if (!iwlwifi_mod_params.sw_crypto) |
964dc9e2 JB |
600 | mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
601 | WIPHY_WOWLAN_GTK_REKEY_FAILURE | | |
602 | WIPHY_WOWLAN_4WAY_HANDSHAKE; | |
603 | ||
604 | mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; | |
605 | mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; | |
606 | mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; | |
c55385f5 | 607 | mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES; |
964dc9e2 JB |
608 | mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; |
609 | hw->wiphy->wowlan = &mvm->wowlan; | |
8ca151b5 JB |
610 | } |
611 | #endif | |
612 | ||
77736923 EP |
613 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
614 | /* assign default bcast filtering configuration */ | |
615 | mvm->bcast_filters = iwl_mvm_default_bcast_filters; | |
616 | #endif | |
617 | ||
8ca151b5 JB |
618 | ret = iwl_mvm_leds_init(mvm); |
619 | if (ret) | |
620 | return ret; | |
621 | ||
d8f1c515 AN |
622 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) { |
623 | IWL_DEBUG_TDLS(mvm, "TDLS supported\n"); | |
624 | hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; | |
625 | } | |
626 | ||
1d3c3f63 AN |
627 | if (mvm->fw->ucode_capa.capa[0] & |
628 | IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) { | |
629 | IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n"); | |
630 | hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; | |
631 | } | |
632 | ||
b7327d89 EG |
633 | ret = ieee80211_register_hw(mvm->hw); |
634 | if (ret) | |
635 | iwl_mvm_leds_exit(mvm); | |
636 | ||
637 | return ret; | |
8ca151b5 JB |
638 | } |
639 | ||
b2492501 AN |
640 | static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, |
641 | struct ieee80211_sta *sta, | |
642 | struct sk_buff *skb) | |
643 | { | |
644 | struct iwl_mvm_sta *mvmsta; | |
645 | bool defer = false; | |
646 | ||
647 | /* | |
648 | * double check the IN_D0I3 flag both before and after | |
649 | * taking the spinlock, in order to prevent taking | |
650 | * the spinlock when not needed. | |
651 | */ | |
652 | if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) | |
653 | return false; | |
654 | ||
655 | spin_lock(&mvm->d0i3_tx_lock); | |
656 | /* | |
657 | * testing the flag again ensures the skb dequeue | |
658 | * loop (on d0i3 exit) hasn't run yet. | |
659 | */ | |
660 | if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) | |
661 | goto out; | |
662 | ||
663 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
664 | if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || | |
665 | mvmsta->sta_id != mvm->d0i3_ap_sta_id) | |
666 | goto out; | |
667 | ||
668 | __skb_queue_tail(&mvm->d0i3_tx, skb); | |
669 | ieee80211_stop_queues(mvm->hw); | |
670 | ||
671 | /* trigger wakeup */ | |
672 | iwl_mvm_ref(mvm, IWL_MVM_REF_TX); | |
673 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX); | |
674 | ||
675 | defer = true; | |
676 | out: | |
677 | spin_unlock(&mvm->d0i3_tx_lock); | |
678 | return defer; | |
679 | } | |
680 | ||
8ca151b5 JB |
681 | static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, |
682 | struct ieee80211_tx_control *control, | |
683 | struct sk_buff *skb) | |
684 | { | |
685 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3e56eadf JB |
686 | struct ieee80211_sta *sta = control->sta; |
687 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
688 | struct ieee80211_hdr *hdr = (void *)skb->data; | |
8ca151b5 | 689 | |
9ee718aa EL |
690 | if (iwl_mvm_is_radio_killed(mvm)) { |
691 | IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); | |
8ca151b5 JB |
692 | goto drop; |
693 | } | |
694 | ||
398e8c6c | 695 | if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE && |
a6cc5163 MG |
696 | !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) && |
697 | !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) | |
8ca151b5 JB |
698 | goto drop; |
699 | ||
3e56eadf JB |
700 | /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ |
701 | if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && | |
702 | ieee80211_is_mgmt(hdr->frame_control) && | |
703 | !ieee80211_is_deauth(hdr->frame_control) && | |
704 | !ieee80211_is_disassoc(hdr->frame_control) && | |
705 | !ieee80211_is_action(hdr->frame_control))) | |
706 | sta = NULL; | |
707 | ||
708 | if (sta) { | |
b2492501 AN |
709 | if (iwl_mvm_defer_tx(mvm, sta, skb)) |
710 | return; | |
3e56eadf | 711 | if (iwl_mvm_tx_skb(mvm, skb, sta)) |
8ca151b5 JB |
712 | goto drop; |
713 | return; | |
714 | } | |
715 | ||
716 | if (iwl_mvm_tx_skb_non_sta(mvm, skb)) | |
717 | goto drop; | |
718 | return; | |
719 | drop: | |
720 | ieee80211_free_txskb(hw, skb); | |
721 | } | |
722 | ||
205e2210 EG |
723 | static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) |
724 | { | |
725 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) | |
726 | return false; | |
727 | return true; | |
728 | } | |
729 | ||
730 | static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) | |
731 | { | |
732 | if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) | |
733 | return false; | |
734 | if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) | |
735 | return true; | |
736 | ||
737 | /* enabled by default */ | |
738 | return true; | |
739 | } | |
740 | ||
4203263d EG |
741 | #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \ |
742 | do { \ | |
743 | if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \ | |
744 | break; \ | |
745 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \ | |
746 | } while (0) | |
747 | ||
748 | static void | |
749 | iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
750 | struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn, | |
751 | enum ieee80211_ampdu_mlme_action action) | |
752 | { | |
753 | struct iwl_fw_dbg_trigger_tlv *trig; | |
754 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
755 | ||
756 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
757 | return; | |
758 | ||
759 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
760 | ba_trig = (void *)trig->data; | |
761 | ||
762 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
763 | return; | |
764 | ||
765 | switch (action) { | |
766 | case IEEE80211_AMPDU_TX_OPERATIONAL: { | |
767 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
768 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
769 | ||
770 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid, | |
771 | "TX AGG START: MAC %pM tid %d ssn %d\n", | |
772 | sta->addr, tid, tid_data->ssn); | |
773 | break; | |
774 | } | |
775 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
776 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid, | |
777 | "TX AGG STOP: MAC %pM tid %d\n", | |
778 | sta->addr, tid); | |
779 | break; | |
780 | case IEEE80211_AMPDU_RX_START: | |
781 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid, | |
782 | "RX AGG START: MAC %pM tid %d ssn %d\n", | |
783 | sta->addr, tid, rx_ba_ssn); | |
784 | break; | |
785 | case IEEE80211_AMPDU_RX_STOP: | |
786 | CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid, | |
787 | "RX AGG STOP: MAC %pM tid %d\n", | |
788 | sta->addr, tid); | |
789 | break; | |
790 | default: | |
791 | break; | |
792 | } | |
793 | } | |
794 | ||
8ca151b5 JB |
795 | static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, |
796 | struct ieee80211_vif *vif, | |
797 | enum ieee80211_ampdu_mlme_action action, | |
798 | struct ieee80211_sta *sta, u16 tid, | |
799 | u16 *ssn, u8 buf_size) | |
800 | { | |
801 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
802 | int ret; | |
b2492501 | 803 | bool tx_agg_ref = false; |
8ca151b5 JB |
804 | |
805 | IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", | |
806 | sta->addr, tid, action); | |
807 | ||
808 | if (!(mvm->nvm_data->sku_cap_11n_enable)) | |
809 | return -EACCES; | |
810 | ||
b2492501 | 811 | /* return from D0i3 before starting a new Tx aggregation */ |
9256c205 EP |
812 | switch (action) { |
813 | case IEEE80211_AMPDU_TX_START: | |
814 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
815 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
816 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
817 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
b2492501 | 818 | /* |
9256c205 EP |
819 | * for tx start, wait synchronously until D0i3 exit to |
820 | * get the correct sequence number for the tid. | |
821 | * additionally, some other ampdu actions use direct | |
822 | * target access, which is not handled automatically | |
823 | * by the trans layer (unlike commands), so wait for | |
824 | * d0i3 exit in these cases as well. | |
b2492501 | 825 | */ |
d40fc489 GG |
826 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG); |
827 | if (ret) | |
828 | return ret; | |
829 | ||
830 | tx_agg_ref = true; | |
9256c205 EP |
831 | break; |
832 | default: | |
833 | break; | |
b2492501 AN |
834 | } |
835 | ||
8ca151b5 JB |
836 | mutex_lock(&mvm->mutex); |
837 | ||
838 | switch (action) { | |
839 | case IEEE80211_AMPDU_RX_START: | |
205e2210 | 840 | if (!iwl_enable_rx_ampdu(mvm->cfg)) { |
8ca151b5 JB |
841 | ret = -EINVAL; |
842 | break; | |
843 | } | |
844 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true); | |
845 | break; | |
846 | case IEEE80211_AMPDU_RX_STOP: | |
847 | ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); | |
848 | break; | |
849 | case IEEE80211_AMPDU_TX_START: | |
205e2210 | 850 | if (!iwl_enable_tx_ampdu(mvm->cfg)) { |
5d158efa EG |
851 | ret = -EINVAL; |
852 | break; | |
853 | } | |
8ca151b5 JB |
854 | ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn); |
855 | break; | |
856 | case IEEE80211_AMPDU_TX_STOP_CONT: | |
e3d9e7ce EG |
857 | ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid); |
858 | break; | |
8ca151b5 JB |
859 | case IEEE80211_AMPDU_TX_STOP_FLUSH: |
860 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
e3d9e7ce | 861 | ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid); |
8ca151b5 JB |
862 | break; |
863 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
864 | ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size); | |
865 | break; | |
866 | default: | |
867 | WARN_ON_ONCE(1); | |
868 | ret = -EINVAL; | |
869 | break; | |
870 | } | |
4203263d EG |
871 | |
872 | if (!ret) { | |
873 | u16 rx_ba_ssn = 0; | |
874 | ||
875 | if (action == IEEE80211_AMPDU_RX_START) | |
876 | rx_ba_ssn = *ssn; | |
877 | ||
878 | iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid, | |
879 | rx_ba_ssn, action); | |
880 | } | |
8ca151b5 JB |
881 | mutex_unlock(&mvm->mutex); |
882 | ||
b2492501 AN |
883 | /* |
884 | * If the tid is marked as started, we won't use it for offloaded | |
885 | * traffic on the next D0i3 entry. It's safe to unref. | |
886 | */ | |
887 | if (tx_agg_ref) | |
888 | iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); | |
889 | ||
8ca151b5 JB |
890 | return ret; |
891 | } | |
892 | ||
893 | static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, | |
894 | struct ieee80211_vif *vif) | |
895 | { | |
896 | struct iwl_mvm *mvm = data; | |
897 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
898 | ||
899 | mvmvif->uploaded = false; | |
900 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
901 | ||
8ca151b5 JB |
902 | spin_lock_bh(&mvm->time_event_lock); |
903 | iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); | |
904 | spin_unlock_bh(&mvm->time_event_lock); | |
905 | ||
fe0f2de3 | 906 | mvmvif->phy_ctxt = NULL; |
8a275bad | 907 | memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data)); |
8ca151b5 JB |
908 | } |
909 | ||
aadede6e JB |
910 | static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count, |
911 | const void *data, size_t datalen) | |
912 | { | |
913 | const struct iwl_mvm_dump_ptrs *dump_ptrs = data; | |
914 | ssize_t bytes_read; | |
915 | ssize_t bytes_read_trans; | |
916 | ||
917 | if (offset < dump_ptrs->op_mode_len) { | |
918 | bytes_read = min_t(ssize_t, count, | |
919 | dump_ptrs->op_mode_len - offset); | |
920 | memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset, | |
921 | bytes_read); | |
922 | offset += bytes_read; | |
923 | count -= bytes_read; | |
924 | ||
925 | if (count == 0) | |
926 | return bytes_read; | |
927 | } else { | |
928 | bytes_read = 0; | |
929 | } | |
930 | ||
931 | if (!dump_ptrs->trans_ptr) | |
932 | return bytes_read; | |
933 | ||
934 | offset -= dump_ptrs->op_mode_len; | |
935 | bytes_read_trans = min_t(ssize_t, count, | |
936 | dump_ptrs->trans_ptr->len - offset); | |
937 | memcpy(buffer + bytes_read, | |
938 | (u8 *)dump_ptrs->trans_ptr->data + offset, | |
939 | bytes_read_trans); | |
940 | ||
941 | return bytes_read + bytes_read_trans; | |
942 | } | |
943 | ||
944 | static void iwl_mvm_free_coredump(const void *data) | |
945 | { | |
946 | const struct iwl_mvm_dump_ptrs *fw_error_dump = data; | |
947 | ||
948 | vfree(fw_error_dump->op_mode_ptr); | |
949 | vfree(fw_error_dump->trans_ptr); | |
950 | kfree(fw_error_dump); | |
951 | } | |
952 | ||
04fd2c28 LK |
953 | static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm, |
954 | struct iwl_fw_error_dump_data **dump_data) | |
955 | { | |
956 | struct iwl_fw_error_dump_fifo *fifo_hdr; | |
957 | u32 *fifo_data; | |
958 | u32 fifo_len; | |
959 | unsigned long flags; | |
960 | int i, j; | |
961 | ||
962 | if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags)) | |
963 | return; | |
964 | ||
965 | /* Pull RXF data from all RXFs */ | |
966 | for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) { | |
967 | /* | |
968 | * Keep aside the additional offset that might be needed for | |
969 | * next RXF | |
970 | */ | |
971 | u32 offset_diff = RXF_DIFF_FROM_PREV * i; | |
972 | ||
973 | fifo_hdr = (void *)(*dump_data)->data; | |
974 | fifo_data = (void *)fifo_hdr->data; | |
975 | fifo_len = mvm->shared_mem_cfg.rxfifo_size[i]; | |
976 | ||
977 | /* No need to try to read the data if the length is 0 */ | |
978 | if (fifo_len == 0) | |
979 | continue; | |
980 | ||
981 | /* Add a TLV for the RXF */ | |
982 | (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF); | |
983 | (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); | |
984 | ||
985 | fifo_hdr->fifo_num = cpu_to_le32(i); | |
986 | fifo_hdr->available_bytes = | |
987 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
988 | RXF_RD_D_SPACE + | |
989 | offset_diff)); | |
990 | fifo_hdr->wr_ptr = | |
991 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
992 | RXF_RD_WR_PTR + | |
993 | offset_diff)); | |
994 | fifo_hdr->rd_ptr = | |
995 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
996 | RXF_RD_RD_PTR + | |
997 | offset_diff)); | |
998 | fifo_hdr->fence_ptr = | |
999 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1000 | RXF_RD_FENCE_PTR + | |
1001 | offset_diff)); | |
1002 | fifo_hdr->fence_mode = | |
1003 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1004 | RXF_SET_FENCE_MODE + | |
1005 | offset_diff)); | |
1006 | ||
1007 | /* Lock fence */ | |
1008 | iwl_trans_write_prph(mvm->trans, | |
1009 | RXF_SET_FENCE_MODE + offset_diff, 0x1); | |
1010 | /* Set fence pointer to the same place like WR pointer */ | |
1011 | iwl_trans_write_prph(mvm->trans, | |
1012 | RXF_LD_WR2FENCE + offset_diff, 0x1); | |
1013 | /* Set fence offset */ | |
1014 | iwl_trans_write_prph(mvm->trans, | |
1015 | RXF_LD_FENCE_OFFSET_ADDR + offset_diff, | |
1016 | 0x0); | |
1017 | ||
1018 | /* Read FIFO */ | |
1019 | fifo_len /= sizeof(u32); /* Size in DWORDS */ | |
1020 | for (j = 0; j < fifo_len; j++) | |
1021 | fifo_data[j] = iwl_trans_read_prph(mvm->trans, | |
1022 | RXF_FIFO_RD_FENCE_INC + | |
1023 | offset_diff); | |
1024 | *dump_data = iwl_fw_error_next_data(*dump_data); | |
1025 | } | |
1026 | ||
1027 | /* Pull TXF data from all TXFs */ | |
1028 | for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) { | |
1029 | /* Mark the number of TXF we're pulling now */ | |
1030 | iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i); | |
1031 | ||
1032 | fifo_hdr = (void *)(*dump_data)->data; | |
1033 | fifo_data = (void *)fifo_hdr->data; | |
1034 | fifo_len = mvm->shared_mem_cfg.txfifo_size[i]; | |
1035 | ||
1036 | /* No need to try to read the data if the length is 0 */ | |
1037 | if (fifo_len == 0) | |
1038 | continue; | |
1039 | ||
1040 | /* Add a TLV for the FIFO */ | |
1041 | (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF); | |
1042 | (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr)); | |
1043 | ||
1044 | fifo_hdr->fifo_num = cpu_to_le32(i); | |
1045 | fifo_hdr->available_bytes = | |
1046 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1047 | TXF_FIFO_ITEM_CNT)); | |
1048 | fifo_hdr->wr_ptr = | |
1049 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1050 | TXF_WR_PTR)); | |
1051 | fifo_hdr->rd_ptr = | |
1052 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1053 | TXF_RD_PTR)); | |
1054 | fifo_hdr->fence_ptr = | |
1055 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1056 | TXF_FENCE_PTR)); | |
1057 | fifo_hdr->fence_mode = | |
1058 | cpu_to_le32(iwl_trans_read_prph(mvm->trans, | |
1059 | TXF_LOCK_FENCE)); | |
1060 | ||
1061 | /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */ | |
1062 | iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR, | |
1063 | TXF_WR_PTR); | |
1064 | ||
1065 | /* Dummy-read to advance the read pointer to the head */ | |
1066 | iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA); | |
1067 | ||
1068 | /* Read FIFO */ | |
1069 | fifo_len /= sizeof(u32); /* Size in DWORDS */ | |
1070 | for (j = 0; j < fifo_len; j++) | |
1071 | fifo_data[j] = iwl_trans_read_prph(mvm->trans, | |
1072 | TXF_READ_MODIFY_DATA); | |
1073 | *dump_data = iwl_fw_error_next_data(*dump_data); | |
1074 | } | |
1075 | ||
1076 | iwl_trans_release_nic_access(mvm->trans, &flags); | |
1077 | } | |
1078 | ||
b6eaa45a EG |
1079 | void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm) |
1080 | { | |
1081 | if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert || | |
1082 | !mvm->fw_dump_desc) | |
1083 | return; | |
1084 | ||
1085 | kfree(mvm->fw_dump_desc); | |
1086 | mvm->fw_dump_desc = NULL; | |
1087 | } | |
1088 | ||
e539761d LK |
1089 | #define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */ |
1090 | #define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */ | |
1091 | ||
4bfa47f3 | 1092 | void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) |
655e6d6d EG |
1093 | { |
1094 | struct iwl_fw_error_dump_file *dump_file; | |
1095 | struct iwl_fw_error_dump_data *dump_data; | |
1096 | struct iwl_fw_error_dump_info *dump_info; | |
a549b296 | 1097 | struct iwl_fw_error_dump_mem *dump_mem; |
b6eaa45a | 1098 | struct iwl_fw_error_dump_trigger_desc *dump_trig; |
48eb7b34 | 1099 | struct iwl_mvm_dump_ptrs *fw_error_dump; |
655e6d6d | 1100 | u32 sram_len, sram_ofs; |
04fd2c28 | 1101 | u32 file_len, fifo_data_len = 0; |
addfaada | 1102 | u32 smem_len = mvm->cfg->smem_len; |
86138324 | 1103 | u32 sram2_len = mvm->cfg->dccm2_len; |
655e6d6d EG |
1104 | |
1105 | lockdep_assert_held(&mvm->mutex); | |
1106 | ||
aadede6e | 1107 | fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL); |
48eb7b34 EG |
1108 | if (!fw_error_dump) |
1109 | return; | |
1110 | ||
f53bf4c7 LK |
1111 | /* SRAM - include stack CCM if driver knows the values for it */ |
1112 | if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) { | |
1113 | const struct fw_img *img; | |
1114 | ||
1115 | img = &mvm->fw->img[mvm->cur_ucode]; | |
1116 | sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
1117 | sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
1118 | } else { | |
1119 | sram_ofs = mvm->cfg->dccm_offset; | |
1120 | sram_len = mvm->cfg->dccm_len; | |
1121 | } | |
655e6d6d | 1122 | |
04fd2c28 LK |
1123 | /* reading RXF/TXF sizes */ |
1124 | if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) { | |
1125 | struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg; | |
1126 | int i; | |
1127 | ||
1128 | fifo_data_len = 0; | |
1129 | ||
1130 | /* Count RXF size */ | |
1131 | for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) { | |
1132 | if (!mem_cfg->rxfifo_size[i]) | |
1133 | continue; | |
1134 | ||
1135 | /* Add header info */ | |
1136 | fifo_data_len += mem_cfg->rxfifo_size[i] + | |
1137 | sizeof(*dump_data) + | |
1138 | sizeof(struct iwl_fw_error_dump_fifo); | |
1139 | } | |
1140 | ||
1141 | for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) { | |
1142 | if (!mem_cfg->txfifo_size[i]) | |
1143 | continue; | |
655e6d6d | 1144 | |
04fd2c28 LK |
1145 | /* Add header info */ |
1146 | fifo_data_len += mem_cfg->txfifo_size[i] + | |
1147 | sizeof(*dump_data) + | |
1148 | sizeof(struct iwl_fw_error_dump_fifo); | |
1149 | } | |
1150 | } | |
655e6d6d EG |
1151 | |
1152 | file_len = sizeof(*dump_file) + | |
04fd2c28 | 1153 | sizeof(*dump_data) * 2 + |
a549b296 | 1154 | sram_len + sizeof(*dump_mem) + |
04fd2c28 | 1155 | fifo_data_len + |
655e6d6d EG |
1156 | sizeof(*dump_info); |
1157 | ||
e539761d LK |
1158 | /* |
1159 | * In 8000 HW family B-step include the ICCM (which resides separately) | |
1160 | */ | |
1161 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && | |
1162 | CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) | |
1163 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + | |
1164 | IWL8260_ICCM_LEN; | |
1165 | ||
b6eaa45a EG |
1166 | if (mvm->fw_dump_desc) |
1167 | file_len += sizeof(*dump_data) + sizeof(*dump_trig) + | |
1168 | mvm->fw_dump_desc->len; | |
1169 | ||
addfaada LK |
1170 | /* Make room for the SMEM, if it exists */ |
1171 | if (smem_len) | |
a549b296 | 1172 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len; |
addfaada | 1173 | |
86138324 IY |
1174 | /* Make room for the secondary SRAM, if it exists */ |
1175 | if (sram2_len) | |
1176 | file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len; | |
1177 | ||
5bfe6f53 | 1178 | dump_file = vzalloc(file_len); |
48eb7b34 EG |
1179 | if (!dump_file) { |
1180 | kfree(fw_error_dump); | |
b6eaa45a | 1181 | iwl_mvm_free_fw_dump_desc(mvm); |
655e6d6d | 1182 | return; |
48eb7b34 | 1183 | } |
655e6d6d | 1184 | |
48eb7b34 | 1185 | fw_error_dump->op_mode_ptr = dump_file; |
655e6d6d EG |
1186 | |
1187 | dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER); | |
655e6d6d EG |
1188 | dump_data = (void *)dump_file->data; |
1189 | ||
1190 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO); | |
1191 | dump_data->len = cpu_to_le32(sizeof(*dump_info)); | |
1192 | dump_info = (void *) dump_data->data; | |
1193 | dump_info->device_family = | |
1194 | mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ? | |
1195 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) : | |
1196 | cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8); | |
435da2ce | 1197 | dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev)); |
655e6d6d EG |
1198 | memcpy(dump_info->fw_human_readable, mvm->fw->human_readable, |
1199 | sizeof(dump_info->fw_human_readable)); | |
1200 | strncpy(dump_info->dev_human_readable, mvm->cfg->name, | |
1201 | sizeof(dump_info->dev_human_readable)); | |
1202 | strncpy(dump_info->bus_human_readable, mvm->dev->bus->name, | |
1203 | sizeof(dump_info->bus_human_readable)); | |
1204 | ||
1205 | dump_data = iwl_fw_error_next_data(dump_data); | |
04fd2c28 LK |
1206 | /* We only dump the FIFOs if the FW is in error state */ |
1207 | if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) | |
1208 | iwl_mvm_dump_fifos(mvm, &dump_data); | |
655e6d6d | 1209 | |
b6eaa45a EG |
1210 | if (mvm->fw_dump_desc) { |
1211 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO); | |
1212 | dump_data->len = cpu_to_le32(sizeof(*dump_trig) + | |
1213 | mvm->fw_dump_desc->len); | |
1214 | dump_trig = (void *)dump_data->data; | |
1215 | memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc, | |
1216 | sizeof(*dump_trig) + mvm->fw_dump_desc->len); | |
1217 | ||
1218 | /* now we can free this copy */ | |
1219 | iwl_mvm_free_fw_dump_desc(mvm); | |
1220 | dump_data = iwl_fw_error_next_data(dump_data); | |
1221 | } | |
1222 | ||
a549b296 EG |
1223 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); |
1224 | dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem)); | |
1225 | dump_mem = (void *)dump_data->data; | |
1226 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1227 | dump_mem->offset = cpu_to_le32(sram_ofs); | |
1228 | iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data, | |
655e6d6d EG |
1229 | sram_len); |
1230 | ||
addfaada LK |
1231 | if (smem_len) { |
1232 | dump_data = iwl_fw_error_next_data(dump_data); | |
e06d8437 EG |
1233 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); |
1234 | dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem)); | |
1235 | dump_mem = (void *)dump_data->data; | |
1236 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM); | |
1237 | dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset); | |
addfaada | 1238 | iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset, |
e06d8437 | 1239 | dump_mem->data, smem_len); |
addfaada LK |
1240 | } |
1241 | ||
86138324 IY |
1242 | if (sram2_len) { |
1243 | dump_data = iwl_fw_error_next_data(dump_data); | |
1244 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); | |
1245 | dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem)); | |
1246 | dump_mem = (void *)dump_data->data; | |
1247 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1248 | dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset); | |
1249 | iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset, | |
1250 | dump_mem->data, sram2_len); | |
1251 | } | |
1252 | ||
e539761d LK |
1253 | if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 && |
1254 | CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) { | |
1255 | dump_data = iwl_fw_error_next_data(dump_data); | |
1256 | dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); | |
1257 | dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN + | |
1258 | sizeof(*dump_mem)); | |
1259 | dump_mem = (void *)dump_data->data; | |
1260 | dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM); | |
1261 | dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET); | |
1262 | iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET, | |
1263 | dump_mem->data, IWL8260_ICCM_LEN); | |
1264 | } | |
1265 | ||
48eb7b34 EG |
1266 | fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans); |
1267 | fw_error_dump->op_mode_len = file_len; | |
1268 | if (fw_error_dump->trans_ptr) | |
1269 | file_len += fw_error_dump->trans_ptr->len; | |
1270 | dump_file->file_len = cpu_to_le32(file_len); | |
4bfa47f3 | 1271 | |
aadede6e JB |
1272 | dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0, |
1273 | GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump); | |
d2709ad7 EG |
1274 | |
1275 | clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status); | |
655e6d6d | 1276 | } |
655e6d6d | 1277 | |
b6eaa45a EG |
1278 | struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = { |
1279 | .trig_desc = { | |
1280 | .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT), | |
1281 | }, | |
1282 | }; | |
1283 | ||
8ca151b5 JB |
1284 | static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) |
1285 | { | |
58629d9d JB |
1286 | /* clear the D3 reconfig, we only need it to avoid dumping a |
1287 | * firmware coredump on reconfiguration, we shouldn't do that | |
1288 | * on D3->D0 transition | |
1289 | */ | |
b6eaa45a EG |
1290 | if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) { |
1291 | mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert; | |
58629d9d | 1292 | iwl_mvm_fw_error_dump(mvm); |
b6eaa45a | 1293 | } |
1bd3cbc1 | 1294 | |
744cb695 EP |
1295 | /* cleanup all stale references (scan, roc), but keep the |
1296 | * ucode_down ref until reconfig is complete | |
1297 | */ | |
1298 | iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1299 | ||
8ca151b5 | 1300 | iwl_trans_stop_device(mvm->trans); |
8ca151b5 | 1301 | |
9af91f46 | 1302 | mvm->scan_status = 0; |
b1873300 | 1303 | mvm->ps_disabled = false; |
31b8b343 | 1304 | mvm->calibrating = false; |
8ca151b5 JB |
1305 | |
1306 | /* just in case one was running */ | |
1307 | ieee80211_remain_on_channel_expired(mvm->hw); | |
1308 | ||
737719fe AN |
1309 | /* |
1310 | * cleanup all interfaces, even inactive ones, as some might have | |
1311 | * gone down during the HW restart | |
1312 | */ | |
1313 | ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm); | |
8ca151b5 | 1314 | |
fe0f2de3 | 1315 | mvm->p2p_device_vif = NULL; |
37577fe2 | 1316 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; |
fe0f2de3 IP |
1317 | |
1318 | iwl_mvm_reset_phy_ctxts(mvm); | |
8ca151b5 | 1319 | memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); |
a0f6bf2a | 1320 | memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained)); |
8a275bad EG |
1321 | memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); |
1322 | memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old)); | |
1323 | memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); | |
1324 | memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old)); | |
1325 | memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk)); | |
1326 | memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk)); | |
8ca151b5 JB |
1327 | |
1328 | ieee80211_wake_queues(mvm->hw); | |
1329 | ||
228670b2 EP |
1330 | /* clear any stale d0i3 state */ |
1331 | clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); | |
1332 | ||
8ca151b5 | 1333 | mvm->vif_count = 0; |
113a0447 | 1334 | mvm->rx_ba_sessions = 0; |
d2709ad7 | 1335 | mvm->fw_dbg_conf = FW_DBG_INVALID; |
91a8bcde JB |
1336 | |
1337 | /* keep statistics ticking */ | |
1338 | iwl_mvm_accu_radio_stats(mvm); | |
8ca151b5 JB |
1339 | } |
1340 | ||
a0a09243 | 1341 | int __iwl_mvm_mac_start(struct iwl_mvm *mvm) |
8ca151b5 | 1342 | { |
8ca151b5 JB |
1343 | int ret; |
1344 | ||
a0a09243 | 1345 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 JB |
1346 | |
1347 | /* Clean up some internal and mac80211 state on restart */ | |
1348 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1349 | iwl_mvm_restart_cleanup(mvm); | |
1350 | ||
1351 | ret = iwl_mvm_up(mvm); | |
c47af22a JB |
1352 | |
1353 | if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1354 | /* Something went wrong - we need to finish some cleanup | |
1355 | * that normally iwl_mvm_mac_restart_complete() below | |
1356 | * would do. | |
1357 | */ | |
1358 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1359 | iwl_mvm_d0i3_enable_tx(mvm, NULL); | |
1360 | } | |
1361 | ||
a0a09243 LC |
1362 | return ret; |
1363 | } | |
1364 | ||
1365 | static int iwl_mvm_mac_start(struct ieee80211_hw *hw) | |
1366 | { | |
1367 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1368 | int ret; | |
1369 | ||
37948fcf EP |
1370 | /* Some hw restart cleanups must not hold the mutex */ |
1371 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
1372 | /* | |
1373 | * Make sure we are out of d0i3. This is needed | |
1374 | * to make sure the reference accounting is correct | |
1375 | * (and there is no stale d0i3_exit_work). | |
1376 | */ | |
1377 | wait_event_timeout(mvm->d0i3_exit_waitq, | |
1378 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1379 | &mvm->status), | |
1380 | HZ); | |
1381 | } | |
1382 | ||
a0a09243 LC |
1383 | mutex_lock(&mvm->mutex); |
1384 | ret = __iwl_mvm_mac_start(mvm); | |
8ca151b5 JB |
1385 | mutex_unlock(&mvm->mutex); |
1386 | ||
1387 | return ret; | |
1388 | } | |
1389 | ||
cf2c92d8 | 1390 | static void iwl_mvm_restart_complete(struct iwl_mvm *mvm) |
8ca151b5 | 1391 | { |
8ca151b5 JB |
1392 | int ret; |
1393 | ||
1394 | mutex_lock(&mvm->mutex); | |
1395 | ||
1396 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
b2492501 | 1397 | iwl_mvm_d0i3_enable_tx(mvm, NULL); |
e7afe89f | 1398 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
1399 | if (ret) |
1400 | IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", | |
1401 | ret); | |
1402 | ||
7498cf4c EP |
1403 | /* allow transport/FW low power modes */ |
1404 | iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
1405 | ||
cbd2ae2d AN |
1406 | /* |
1407 | * If we have TDLS peers, remove them. We don't know the last seqno/PN | |
1408 | * of packets the FW sent out, so we must reconnect. | |
1409 | */ | |
1410 | iwl_mvm_teardown_tdls_peers(mvm); | |
1411 | ||
8ca151b5 JB |
1412 | mutex_unlock(&mvm->mutex); |
1413 | } | |
1414 | ||
088070a2 EP |
1415 | static void iwl_mvm_resume_complete(struct iwl_mvm *mvm) |
1416 | { | |
1417 | bool exit_now; | |
1418 | ||
1419 | if (!iwl_mvm_is_d0i3_supported(mvm)) | |
1420 | return; | |
1421 | ||
1422 | mutex_lock(&mvm->d0i3_suspend_mutex); | |
1423 | __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
1424 | exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP, | |
1425 | &mvm->d0i3_suspend_flags); | |
1426 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
1427 | ||
1428 | if (exit_now) { | |
1429 | IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n"); | |
1430 | _iwl_mvm_exit_d0i3(mvm); | |
1431 | } | |
6735943f EP |
1432 | |
1433 | if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND) | |
1434 | if (!wait_event_timeout(mvm->d0i3_exit_waitq, | |
1435 | !test_bit(IWL_MVM_STATUS_IN_D0I3, | |
1436 | &mvm->status), | |
1437 | HZ)) | |
1438 | WARN_ONCE(1, "D0i3 exit on resume timed out\n"); | |
088070a2 EP |
1439 | } |
1440 | ||
cf2c92d8 EP |
1441 | static void |
1442 | iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw, | |
1443 | enum ieee80211_reconfig_type reconfig_type) | |
1444 | { | |
1445 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1446 | ||
1447 | switch (reconfig_type) { | |
1448 | case IEEE80211_RECONFIG_TYPE_RESTART: | |
1449 | iwl_mvm_restart_complete(mvm); | |
1450 | break; | |
1451 | case IEEE80211_RECONFIG_TYPE_SUSPEND: | |
088070a2 | 1452 | iwl_mvm_resume_complete(mvm); |
cf2c92d8 EP |
1453 | break; |
1454 | } | |
1455 | } | |
1456 | ||
a0a09243 | 1457 | void __iwl_mvm_mac_stop(struct iwl_mvm *mvm) |
8ca151b5 | 1458 | { |
a0a09243 | 1459 | lockdep_assert_held(&mvm->mutex); |
7498cf4c | 1460 | |
91a8bcde JB |
1461 | /* firmware counters are obviously reset now, but we shouldn't |
1462 | * partially track so also clear the fw_reset_accu counters. | |
1463 | */ | |
1464 | memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats)); | |
1465 | ||
0a79a0c0 EP |
1466 | /* |
1467 | * Disallow low power states when the FW is down by taking | |
1468 | * the UCODE_DOWN ref. in case of ongoing hw restart the | |
1469 | * ref is already taken, so don't take it again. | |
1470 | */ | |
1471 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1472 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
7498cf4c | 1473 | |
8ca151b5 JB |
1474 | /* async_handlers_wk is now blocked */ |
1475 | ||
1476 | /* | |
1477 | * The work item could be running or queued if the | |
1478 | * ROC time event stops just as we get here. | |
1479 | */ | |
c779273b | 1480 | flush_work(&mvm->roc_done_wk); |
8ca151b5 JB |
1481 | |
1482 | iwl_trans_stop_device(mvm->trans); | |
8ca151b5 JB |
1483 | |
1484 | iwl_mvm_async_handlers_purge(mvm); | |
1485 | /* async_handlers_list is empty and will stay empty: HW is stopped */ | |
1486 | ||
1487 | /* the fw is stopped, the aux sta is dead: clean up driver state */ | |
712b24ad | 1488 | iwl_mvm_del_aux_sta(mvm); |
8ca151b5 | 1489 | |
0a79a0c0 EP |
1490 | /* |
1491 | * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete() | |
1492 | * won't be called in this case). | |
8b2b9fbf AN |
1493 | * But make sure to cleanup interfaces that have gone down before/during |
1494 | * HW restart was requested. | |
0a79a0c0 | 1495 | */ |
8b2b9fbf AN |
1496 | if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) |
1497 | ieee80211_iterate_interfaces(mvm->hw, 0, | |
1498 | iwl_mvm_cleanup_iterator, mvm); | |
0a79a0c0 | 1499 | |
963221be AB |
1500 | /* We shouldn't have any UIDs still set. Loop over all the UIDs to |
1501 | * make sure there's nothing left there and warn if any is found. | |
1502 | */ | |
1503 | if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) { | |
1504 | int i; | |
1505 | ||
507e4cda | 1506 | for (i = 0; i < mvm->max_scans; i++) { |
6185af2a LC |
1507 | if (WARN_ONCE(mvm->scan_uid_status[i], |
1508 | "UMAC scan UID %d status was not cleaned\n", | |
1509 | i)) | |
1510 | mvm->scan_uid_status[i] = 0; | |
963221be AB |
1511 | } |
1512 | } | |
1513 | ||
bc44886d | 1514 | mvm->ucode_loaded = false; |
a0a09243 | 1515 | } |
bc44886d | 1516 | |
a0a09243 LC |
1517 | static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) |
1518 | { | |
1519 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1520 | ||
1521 | flush_work(&mvm->d0i3_exit_work); | |
1522 | flush_work(&mvm->async_handlers_wk); | |
d2709ad7 | 1523 | cancel_delayed_work_sync(&mvm->fw_dump_wk); |
b6eaa45a | 1524 | iwl_mvm_free_fw_dump_desc(mvm); |
a0a09243 LC |
1525 | |
1526 | mutex_lock(&mvm->mutex); | |
1527 | __iwl_mvm_mac_stop(mvm); | |
8ca151b5 JB |
1528 | mutex_unlock(&mvm->mutex); |
1529 | ||
1530 | /* | |
1531 | * The worker might have been waiting for the mutex, let it run and | |
1532 | * discover that its list is now empty. | |
1533 | */ | |
1534 | cancel_work_sync(&mvm->async_handlers_wk); | |
1535 | } | |
1536 | ||
fe0f2de3 IP |
1537 | static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) |
1538 | { | |
1539 | u16 i; | |
1540 | ||
1541 | lockdep_assert_held(&mvm->mutex); | |
1542 | ||
1543 | for (i = 0; i < NUM_PHY_CTX; i++) | |
1544 | if (!mvm->phy_ctxts[i].ref) | |
1545 | return &mvm->phy_ctxts[i]; | |
1546 | ||
1547 | IWL_ERR(mvm, "No available PHY context\n"); | |
1548 | return NULL; | |
1549 | } | |
1550 | ||
d44c3fe6 AA |
1551 | static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm, |
1552 | struct ieee80211_vif *vif, s8 tx_power) | |
ee9c6cb0 EG |
1553 | { |
1554 | /* FW is in charge of regulatory enforcement */ | |
1555 | struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { | |
1556 | .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, | |
1557 | .pwr_restriction = cpu_to_le16(tx_power), | |
1558 | }; | |
1559 | ||
a1022927 | 1560 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, |
ee9c6cb0 EG |
1561 | sizeof(reduce_txpwr_cmd), |
1562 | &reduce_txpwr_cmd); | |
1563 | } | |
1564 | ||
d44c3fe6 AA |
1565 | static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1566 | s16 tx_power) | |
1567 | { | |
1568 | struct iwl_dev_tx_power_cmd cmd = { | |
1569 | .set_mode = 0, | |
1570 | .mac_context_id = | |
1571 | cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id), | |
1572 | .pwr_restriction = cpu_to_le16(8 * tx_power), | |
1573 | }; | |
1574 | ||
1575 | if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_TX_POWER_DEV)) | |
1576 | return iwl_mvm_set_tx_power_old(mvm, vif, tx_power); | |
1577 | ||
1578 | if (tx_power == IWL_DEFAULT_MAX_TX_POWER) | |
1579 | cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER); | |
1580 | ||
1581 | return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, | |
1582 | sizeof(cmd), &cmd); | |
1583 | } | |
1584 | ||
8ca151b5 JB |
1585 | static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, |
1586 | struct ieee80211_vif *vif) | |
1587 | { | |
1588 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1589 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1590 | int ret; | |
1591 | ||
aa5e1832 EG |
1592 | mvmvif->mvm = mvm; |
1593 | ||
d40fc489 GG |
1594 | /* |
1595 | * make sure D0i3 exit is completed, otherwise a target access | |
1596 | * during tx queue configuration could be done when still in | |
1597 | * D0i3 state. | |
1598 | */ | |
1599 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF); | |
1600 | if (ret) | |
1601 | return ret; | |
1602 | ||
8ca151b5 JB |
1603 | /* |
1604 | * Not much to do here. The stack will not allow interface | |
1605 | * types or combinations that we didn't advertise, so we | |
1606 | * don't really have to check the types. | |
1607 | */ | |
1608 | ||
1609 | mutex_lock(&mvm->mutex); | |
1610 | ||
33cef925 JB |
1611 | /* make sure that beacon statistics don't go backwards with FW reset */ |
1612 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
1613 | mvmvif->beacon_stats.accu_num_beacons += | |
1614 | mvmvif->beacon_stats.num_beacons; | |
1615 | ||
e89044d7 | 1616 | /* Allocate resources for the MAC context, and add it to the fw */ |
8ca151b5 JB |
1617 | ret = iwl_mvm_mac_ctxt_init(mvm, vif); |
1618 | if (ret) | |
1619 | goto out_unlock; | |
1620 | ||
1c2abf72 | 1621 | /* Counting number of interfaces is needed for legacy PM */ |
ea183d02 IP |
1622 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1623 | mvm->vif_count++; | |
ea183d02 | 1624 | |
8ca151b5 JB |
1625 | /* |
1626 | * The AP binding flow can be done only after the beacon | |
1627 | * template is configured (which happens only in the mac80211 | |
1628 | * start_ap() flow), and adding the broadcast station can happen | |
1629 | * only after the binding. | |
1630 | * In addition, since modifying the MAC before adding a bcast | |
1631 | * station is not allowed by the FW, delay the adding of MAC context to | |
1632 | * the point where we can also add the bcast station. | |
1633 | * In short: there's not much we can do at this point, other than | |
1634 | * allocating resources :) | |
1635 | */ | |
5023d966 JB |
1636 | if (vif->type == NL80211_IFTYPE_AP || |
1637 | vif->type == NL80211_IFTYPE_ADHOC) { | |
013290aa | 1638 | ret = iwl_mvm_alloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1639 | if (ret) { |
1640 | IWL_ERR(mvm, "Failed to allocate bcast sta\n"); | |
1641 | goto out_release; | |
1642 | } | |
1643 | ||
77740cb4 | 1644 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1645 | goto out_unlock; |
1646 | } | |
1647 | ||
8ca151b5 JB |
1648 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
1649 | if (ret) | |
1650 | goto out_release; | |
1651 | ||
999609f1 | 1652 | ret = iwl_mvm_power_update_mac(mvm); |
e5e7aa8e | 1653 | if (ret) |
fd66fc1c | 1654 | goto out_remove_mac; |
8ca151b5 | 1655 | |
7df15b1e | 1656 | /* beacon filtering */ |
a1022927 | 1657 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); |
bd3351ba EP |
1658 | if (ret) |
1659 | goto out_remove_mac; | |
1660 | ||
7df15b1e | 1661 | if (!mvm->bf_allowed_vif && |
73e5f2c5 | 1662 | vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { |
7df15b1e | 1663 | mvm->bf_allowed_vif = mvmvif; |
a20fd398 AO |
1664 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
1665 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; | |
7df15b1e HG |
1666 | } |
1667 | ||
8ca151b5 JB |
1668 | /* |
1669 | * P2P_DEVICE interface does not have a channel context assigned to it, | |
1670 | * so a dedicated PHY context is allocated to it and the corresponding | |
1671 | * MAC context is bound to it at this stage. | |
1672 | */ | |
1673 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
8ca151b5 | 1674 | |
fe0f2de3 IP |
1675 | mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
1676 | if (!mvmvif->phy_ctxt) { | |
1677 | ret = -ENOSPC; | |
bd3351ba | 1678 | goto out_free_bf; |
fe0f2de3 | 1679 | } |
8ca151b5 | 1680 | |
53a9d61e | 1681 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1682 | ret = iwl_mvm_binding_add_vif(mvm, vif); |
1683 | if (ret) | |
53a9d61e | 1684 | goto out_unref_phy; |
8ca151b5 | 1685 | |
013290aa | 1686 | ret = iwl_mvm_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
1687 | if (ret) |
1688 | goto out_unbind; | |
1689 | ||
1690 | /* Save a pointer to p2p device vif, so it can later be used to | |
1691 | * update the p2p device MAC when a GO is started/stopped */ | |
1692 | mvm->p2p_device_vif = vif; | |
1693 | } | |
1694 | ||
63494374 | 1695 | iwl_mvm_vif_dbgfs_register(mvm, vif); |
8ca151b5 JB |
1696 | goto out_unlock; |
1697 | ||
1698 | out_unbind: | |
1699 | iwl_mvm_binding_remove_vif(mvm, vif); | |
53a9d61e | 1700 | out_unref_phy: |
fe0f2de3 | 1701 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
bd3351ba EP |
1702 | out_free_bf: |
1703 | if (mvm->bf_allowed_vif == mvmvif) { | |
1704 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1705 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1706 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
bd3351ba | 1707 | } |
8ca151b5 JB |
1708 | out_remove_mac: |
1709 | mvmvif->phy_ctxt = NULL; | |
1710 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
1711 | out_release: | |
5ee2b215 AB |
1712 | if (vif->type != NL80211_IFTYPE_P2P_DEVICE) |
1713 | mvm->vif_count--; | |
1c2abf72 | 1714 | |
8ca151b5 JB |
1715 | iwl_mvm_mac_ctxt_release(mvm, vif); |
1716 | out_unlock: | |
1717 | mutex_unlock(&mvm->mutex); | |
1718 | ||
d40fc489 GG |
1719 | iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF); |
1720 | ||
8ca151b5 JB |
1721 | return ret; |
1722 | } | |
1723 | ||
38a12b5b JB |
1724 | static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, |
1725 | struct ieee80211_vif *vif) | |
8ca151b5 | 1726 | { |
d92b732e | 1727 | u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif); |
8ca151b5 JB |
1728 | |
1729 | if (tfd_msk) { | |
fe92e32a EG |
1730 | /* |
1731 | * mac80211 first removes all the stations of the vif and | |
1732 | * then removes the vif. When it removes a station it also | |
1733 | * flushes the AMPDU session. So by now, all the AMPDU sessions | |
1734 | * of all the stations of this vif are closed, and the queues | |
1735 | * of these AMPDU sessions are properly closed. | |
1736 | * We still need to take care of the shared queues of the vif. | |
1737 | * Flush them here. | |
1738 | */ | |
8ca151b5 JB |
1739 | mutex_lock(&mvm->mutex); |
1740 | iwl_mvm_flush_tx_path(mvm, tfd_msk, true); | |
1741 | mutex_unlock(&mvm->mutex); | |
fe92e32a EG |
1742 | |
1743 | /* | |
1744 | * There are transports that buffer a few frames in the host. | |
1745 | * For these, the flush above isn't enough since while we were | |
1746 | * flushing, the transport might have sent more frames to the | |
1747 | * device. To solve this, wait here until the transport is | |
1748 | * empty. Technically, this could have replaced the flush | |
1749 | * above, but flush is much faster than draining. So flush | |
1750 | * first, and drain to make sure we have no frames in the | |
1751 | * transport anymore. | |
1752 | * If a station still had frames on the shared queues, it is | |
1753 | * already marked as draining, so to complete the draining, we | |
1754 | * just need to wait until the transport is empty. | |
1755 | */ | |
1756 | iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk); | |
8ca151b5 JB |
1757 | } |
1758 | ||
1759 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1760 | /* | |
1761 | * Flush the ROC worker which will flush the OFFCHANNEL queue. | |
1762 | * We assume here that all the packets sent to the OFFCHANNEL | |
1763 | * queue are sent in ROC session. | |
1764 | */ | |
1765 | flush_work(&mvm->roc_done_wk); | |
1766 | } else { | |
1767 | /* | |
1768 | * By now, all the AC queues are empty. The AGG queues are | |
1769 | * empty too. We already got all the Tx responses for all the | |
1770 | * packets in the queues. The drain work can have been | |
0742a75a | 1771 | * triggered. Flush it. |
8ca151b5 JB |
1772 | */ |
1773 | flush_work(&mvm->sta_drained_wk); | |
1774 | } | |
38a12b5b JB |
1775 | } |
1776 | ||
1777 | static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, | |
1778 | struct ieee80211_vif *vif) | |
1779 | { | |
1780 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1781 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1782 | ||
1783 | iwl_mvm_prepare_mac_removal(mvm, vif); | |
8ca151b5 JB |
1784 | |
1785 | mutex_lock(&mvm->mutex); | |
1786 | ||
7df15b1e HG |
1787 | if (mvm->bf_allowed_vif == mvmvif) { |
1788 | mvm->bf_allowed_vif = NULL; | |
a20fd398 AO |
1789 | vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | |
1790 | IEEE80211_VIF_SUPPORTS_CQM_RSSI); | |
7df15b1e HG |
1791 | } |
1792 | ||
63494374 JB |
1793 | iwl_mvm_vif_dbgfs_clean(mvm, vif); |
1794 | ||
8ca151b5 JB |
1795 | /* |
1796 | * For AP/GO interface, the tear down of the resources allocated to the | |
38a12b5b | 1797 | * interface is be handled as part of the stop_ap flow. |
8ca151b5 | 1798 | */ |
5023d966 JB |
1799 | if (vif->type == NL80211_IFTYPE_AP || |
1800 | vif->type == NL80211_IFTYPE_ADHOC) { | |
507cadf2 DS |
1801 | #ifdef CONFIG_NL80211_TESTMODE |
1802 | if (vif == mvm->noa_vif) { | |
1803 | mvm->noa_vif = NULL; | |
1804 | mvm->noa_duration = 0; | |
1805 | } | |
1806 | #endif | |
013290aa | 1807 | iwl_mvm_dealloc_bcast_sta(mvm, vif); |
8ca151b5 JB |
1808 | goto out_release; |
1809 | } | |
1810 | ||
1811 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
1812 | mvm->p2p_device_vif = NULL; | |
013290aa | 1813 | iwl_mvm_rm_bcast_sta(mvm, vif); |
8ca151b5 | 1814 | iwl_mvm_binding_remove_vif(mvm, vif); |
fe0f2de3 | 1815 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); |
8ca151b5 JB |
1816 | mvmvif->phy_ctxt = NULL; |
1817 | } | |
1818 | ||
5ee2b215 | 1819 | if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) |
8ca151b5 | 1820 | mvm->vif_count--; |
1c2abf72 | 1821 | |
999609f1 | 1822 | iwl_mvm_power_update_mac(mvm); |
8ca151b5 JB |
1823 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
1824 | ||
1825 | out_release: | |
1826 | iwl_mvm_mac_ctxt_release(mvm, vif); | |
1827 | mutex_unlock(&mvm->mutex); | |
1828 | } | |
1829 | ||
1830 | static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) | |
88f2fd73 | 1831 | { |
8ca151b5 JB |
1832 | return 0; |
1833 | } | |
1834 | ||
e59647ea EP |
1835 | struct iwl_mvm_mc_iter_data { |
1836 | struct iwl_mvm *mvm; | |
1837 | int port_id; | |
1838 | }; | |
1839 | ||
1840 | static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, | |
1841 | struct ieee80211_vif *vif) | |
1842 | { | |
1843 | struct iwl_mvm_mc_iter_data *data = _data; | |
1844 | struct iwl_mvm *mvm = data->mvm; | |
1845 | struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; | |
1846 | int ret, len; | |
1847 | ||
1848 | /* if we don't have free ports, mcast frames will be dropped */ | |
1849 | if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) | |
1850 | return; | |
1851 | ||
1852 | if (vif->type != NL80211_IFTYPE_STATION || | |
1853 | !vif->bss_conf.assoc) | |
1854 | return; | |
1855 | ||
1856 | cmd->port_id = data->port_id++; | |
1857 | memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); | |
1858 | len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); | |
1859 | ||
1c4abec0 | 1860 | ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); |
e59647ea EP |
1861 | if (ret) |
1862 | IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); | |
1863 | } | |
1864 | ||
1865 | static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) | |
1866 | { | |
1867 | struct iwl_mvm_mc_iter_data iter_data = { | |
1868 | .mvm = mvm, | |
88f2fd73 MG |
1869 | }; |
1870 | ||
e59647ea EP |
1871 | lockdep_assert_held(&mvm->mutex); |
1872 | ||
1873 | if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) | |
1874 | return; | |
1875 | ||
1c4abec0 | 1876 | ieee80211_iterate_active_interfaces_atomic( |
e59647ea EP |
1877 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
1878 | iwl_mvm_mc_iface_iterator, &iter_data); | |
88f2fd73 MG |
1879 | } |
1880 | ||
e59647ea EP |
1881 | static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, |
1882 | struct netdev_hw_addr_list *mc_list) | |
8ca151b5 | 1883 | { |
e59647ea EP |
1884 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1885 | struct iwl_mcast_filter_cmd *cmd; | |
1886 | struct netdev_hw_addr *addr; | |
f3bd58f4 MS |
1887 | int addr_count; |
1888 | bool pass_all; | |
e59647ea EP |
1889 | int len; |
1890 | ||
f3bd58f4 MS |
1891 | addr_count = netdev_hw_addr_list_count(mc_list); |
1892 | pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES || | |
1893 | IWL_MVM_FW_MCAST_FILTER_PASS_ALL; | |
1894 | if (pass_all) | |
e59647ea | 1895 | addr_count = 0; |
e59647ea EP |
1896 | |
1897 | len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); | |
1898 | cmd = kzalloc(len, GFP_ATOMIC); | |
1899 | if (!cmd) | |
1900 | return 0; | |
1901 | ||
1902 | if (pass_all) { | |
1903 | cmd->pass_all = 1; | |
1904 | return (u64)(unsigned long)cmd; | |
1905 | } | |
1906 | ||
1907 | netdev_hw_addr_list_for_each(addr, mc_list) { | |
1908 | IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", | |
1909 | cmd->count, addr->addr); | |
1910 | memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], | |
1911 | addr->addr, ETH_ALEN); | |
1912 | cmd->count++; | |
1913 | } | |
1914 | ||
1915 | return (u64)(unsigned long)cmd; | |
8ca151b5 JB |
1916 | } |
1917 | ||
1918 | static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, | |
1919 | unsigned int changed_flags, | |
1920 | unsigned int *total_flags, | |
1921 | u64 multicast) | |
1922 | { | |
e59647ea EP |
1923 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
1924 | struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; | |
8ca151b5 | 1925 | |
e59647ea | 1926 | mutex_lock(&mvm->mutex); |
51b6b9e0 | 1927 | |
e59647ea EP |
1928 | /* replace previous configuration */ |
1929 | kfree(mvm->mcast_filter_cmd); | |
1930 | mvm->mcast_filter_cmd = cmd; | |
51b6b9e0 | 1931 | |
e59647ea EP |
1932 | if (!cmd) |
1933 | goto out; | |
51b6b9e0 | 1934 | |
e59647ea EP |
1935 | iwl_mvm_recalc_multicast(mvm); |
1936 | out: | |
1937 | mutex_unlock(&mvm->mutex); | |
1938 | *total_flags = 0; | |
51b6b9e0 EG |
1939 | } |
1940 | ||
c87163b9 EP |
1941 | #ifdef CONFIG_IWLWIFI_BCAST_FILTERING |
1942 | struct iwl_bcast_iter_data { | |
1943 | struct iwl_mvm *mvm; | |
1944 | struct iwl_bcast_filter_cmd *cmd; | |
1945 | u8 current_filter; | |
1946 | }; | |
1947 | ||
1948 | static void | |
1949 | iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, | |
1950 | const struct iwl_fw_bcast_filter *in_filter, | |
1951 | struct iwl_fw_bcast_filter *out_filter) | |
1952 | { | |
1953 | struct iwl_fw_bcast_filter_attr *attr; | |
1954 | int i; | |
1955 | ||
1956 | memcpy(out_filter, in_filter, sizeof(*out_filter)); | |
1957 | ||
1958 | for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { | |
1959 | attr = &out_filter->attrs[i]; | |
1960 | ||
1961 | if (!attr->mask) | |
1962 | break; | |
1963 | ||
2ee8f021 EP |
1964 | switch (attr->reserved1) { |
1965 | case cpu_to_le16(BC_FILTER_MAGIC_IP): | |
1966 | if (vif->bss_conf.arp_addr_cnt != 1) { | |
1967 | attr->mask = 0; | |
1968 | continue; | |
1969 | } | |
1970 | ||
1971 | attr->val = vif->bss_conf.arp_addr_list[0]; | |
1972 | break; | |
1973 | case cpu_to_le16(BC_FILTER_MAGIC_MAC): | |
1974 | attr->val = *(__be32 *)&vif->addr[2]; | |
1975 | break; | |
1976 | default: | |
1977 | break; | |
1978 | } | |
1979 | attr->reserved1 = 0; | |
c87163b9 EP |
1980 | out_filter->num_attrs++; |
1981 | } | |
1982 | } | |
1983 | ||
1984 | static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, | |
1985 | struct ieee80211_vif *vif) | |
1986 | { | |
1987 | struct iwl_bcast_iter_data *data = _data; | |
1988 | struct iwl_mvm *mvm = data->mvm; | |
1989 | struct iwl_bcast_filter_cmd *cmd = data->cmd; | |
1990 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1991 | struct iwl_fw_bcast_mac *bcast_mac; | |
1992 | int i; | |
1993 | ||
1994 | if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) | |
1995 | return; | |
1996 | ||
1997 | bcast_mac = &cmd->macs[mvmvif->id]; | |
1998 | ||
e48393e8 IP |
1999 | /* |
2000 | * enable filtering only for associated stations, but not for P2P | |
2001 | * Clients | |
2002 | */ | |
2003 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || | |
2004 | !vif->bss_conf.assoc) | |
c87163b9 EP |
2005 | return; |
2006 | ||
2007 | bcast_mac->default_discard = 1; | |
2008 | ||
2009 | /* copy all configured filters */ | |
2010 | for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { | |
2011 | /* | |
2012 | * Make sure we don't exceed our filters limit. | |
2013 | * if there is still a valid filter to be configured, | |
2014 | * be on the safe side and just allow bcast for this mac. | |
2015 | */ | |
2016 | if (WARN_ON_ONCE(data->current_filter >= | |
2017 | ARRAY_SIZE(cmd->filters))) { | |
2018 | bcast_mac->default_discard = 0; | |
2019 | bcast_mac->attached_filters = 0; | |
2020 | break; | |
2021 | } | |
2022 | ||
2023 | iwl_mvm_set_bcast_filter(vif, | |
2024 | &mvm->bcast_filters[i], | |
2025 | &cmd->filters[data->current_filter]); | |
2026 | ||
2027 | /* skip current filter if it contains no attributes */ | |
2028 | if (!cmd->filters[data->current_filter].num_attrs) | |
2029 | continue; | |
2030 | ||
2031 | /* attach the filter to current mac */ | |
2032 | bcast_mac->attached_filters |= | |
2033 | cpu_to_le16(BIT(data->current_filter)); | |
2034 | ||
2035 | data->current_filter++; | |
2036 | } | |
2037 | } | |
2038 | ||
de06a59e EP |
2039 | bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, |
2040 | struct iwl_bcast_filter_cmd *cmd) | |
c87163b9 | 2041 | { |
c87163b9 EP |
2042 | struct iwl_bcast_iter_data iter_data = { |
2043 | .mvm = mvm, | |
de06a59e | 2044 | .cmd = cmd, |
c87163b9 EP |
2045 | }; |
2046 | ||
3b8983b1 MS |
2047 | if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL) |
2048 | return false; | |
2049 | ||
de06a59e EP |
2050 | memset(cmd, 0, sizeof(*cmd)); |
2051 | cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); | |
2052 | cmd->max_macs = ARRAY_SIZE(cmd->macs); | |
2053 | ||
2054 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
2055 | /* use debugfs filters/macs if override is configured */ | |
2056 | if (mvm->dbgfs_bcast_filtering.override) { | |
2057 | memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, | |
2058 | sizeof(cmd->filters)); | |
2059 | memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, | |
2060 | sizeof(cmd->macs)); | |
2061 | return true; | |
2062 | } | |
2063 | #endif | |
c87163b9 EP |
2064 | |
2065 | /* if no filters are configured, do nothing */ | |
2066 | if (!mvm->bcast_filters) | |
de06a59e | 2067 | return false; |
c87163b9 EP |
2068 | |
2069 | /* configure and attach these filters for each associated sta vif */ | |
2070 | ieee80211_iterate_active_interfaces( | |
2071 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
2072 | iwl_mvm_bcast_filter_iterator, &iter_data); | |
2073 | ||
de06a59e EP |
2074 | return true; |
2075 | } | |
2076 | static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
2077 | struct ieee80211_vif *vif) | |
2078 | { | |
2079 | struct iwl_bcast_filter_cmd cmd; | |
2080 | ||
2081 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) | |
2082 | return 0; | |
2083 | ||
2084 | if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) | |
2085 | return 0; | |
2086 | ||
a1022927 | 2087 | return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, |
c87163b9 EP |
2088 | sizeof(cmd), &cmd); |
2089 | } | |
2090 | #else | |
2091 | static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, | |
2092 | struct ieee80211_vif *vif) | |
2093 | { | |
2094 | return 0; | |
2095 | } | |
2096 | #endif | |
2097 | ||
8ca151b5 JB |
2098 | static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, |
2099 | struct ieee80211_vif *vif, | |
2100 | struct ieee80211_bss_conf *bss_conf, | |
2101 | u32 changes) | |
2102 | { | |
2103 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2104 | int ret; | |
2105 | ||
6e97b0d2 IP |
2106 | /* |
2107 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2108 | * beacon interval, which was not known when the station interface was | |
2109 | * added. | |
2110 | */ | |
2111 | if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) | |
2112 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2113 | ||
3dfd3a97 JB |
2114 | /* |
2115 | * If we're not associated yet, take the (new) BSSID before associating | |
2116 | * so the firmware knows. If we're already associated, then use the old | |
2117 | * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC | |
2118 | * branch for disassociation below. | |
2119 | */ | |
2120 | if (changes & BSS_CHANGED_BSSID && !mvmvif->associated) | |
2121 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
2122 | ||
2123 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid); | |
8ca151b5 JB |
2124 | if (ret) |
2125 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); | |
2126 | ||
3dfd3a97 JB |
2127 | /* after sending it once, adopt mac80211 data */ |
2128 | memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN); | |
2129 | mvmvif->associated = bss_conf->assoc; | |
2130 | ||
8ca151b5 JB |
2131 | if (changes & BSS_CHANGED_ASSOC) { |
2132 | if (bss_conf->assoc) { | |
33cef925 JB |
2133 | /* clear statistics to get clean beacon counter */ |
2134 | iwl_mvm_request_statistics(mvm, true); | |
2135 | memset(&mvmvif->beacon_stats, 0, | |
2136 | sizeof(mvmvif->beacon_stats)); | |
2137 | ||
8ca151b5 | 2138 | /* add quota for this interface */ |
7754ae79 | 2139 | ret = iwl_mvm_update_quotas(mvm, true, NULL); |
8ca151b5 JB |
2140 | if (ret) { |
2141 | IWL_ERR(mvm, "failed to update quotas\n"); | |
2142 | return; | |
2143 | } | |
016d27e1 JB |
2144 | |
2145 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
2146 | &mvm->status)) { | |
2147 | /* | |
2148 | * If we're restarting then the firmware will | |
2149 | * obviously have lost synchronisation with | |
2150 | * the AP. It will attempt to synchronise by | |
2151 | * itself, but we can make it more reliable by | |
2152 | * scheduling a session protection time event. | |
2153 | * | |
2154 | * The firmware needs to receive a beacon to | |
2155 | * catch up with synchronisation, use 110% of | |
2156 | * the beacon interval. | |
2157 | * | |
2158 | * Set a large maximum delay to allow for more | |
2159 | * than a single interface. | |
2160 | */ | |
2161 | u32 dur = (11 * vif->bss_conf.beacon_int) / 10; | |
2162 | iwl_mvm_protect_session(mvm, vif, dur, dur, | |
d20d37bc | 2163 | 5 * dur, false); |
016d27e1 | 2164 | } |
1f3b0ff8 LE |
2165 | |
2166 | iwl_mvm_sf_update(mvm, vif, false); | |
175a70b7 | 2167 | iwl_mvm_power_vif_assoc(mvm, vif); |
697162a1 | 2168 | if (vif->p2p) { |
29a90a49 | 2169 | iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); |
697162a1 EG |
2170 | iwl_mvm_update_smps(mvm, vif, |
2171 | IWL_MVM_SMPS_REQ_PROT, | |
2172 | IEEE80211_SMPS_DYNAMIC); | |
2173 | } | |
8ca151b5 | 2174 | } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { |
1f3b0ff8 LE |
2175 | /* |
2176 | * If update fails - SF might be running in associated | |
2177 | * mode while disassociated - which is forbidden. | |
2178 | */ | |
2179 | WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), | |
2180 | "Failed to update SF upon disassociation\n"); | |
2181 | ||
8ca151b5 JB |
2182 | /* remove AP station now that the MAC is unassoc */ |
2183 | ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); | |
2184 | if (ret) | |
2185 | IWL_ERR(mvm, "failed to remove AP station\n"); | |
37577fe2 EP |
2186 | |
2187 | if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) | |
2188 | mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; | |
8ca151b5 JB |
2189 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; |
2190 | /* remove quota for this interface */ | |
7754ae79 | 2191 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
2192 | if (ret) |
2193 | IWL_ERR(mvm, "failed to update quotas\n"); | |
29a90a49 EP |
2194 | |
2195 | if (vif->p2p) | |
2196 | iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); | |
3dfd3a97 JB |
2197 | |
2198 | /* this will take the cleared BSSID from bss_conf */ | |
2199 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
2200 | if (ret) | |
2201 | IWL_ERR(mvm, | |
2202 | "failed to update MAC %pM (clear after unassoc)\n", | |
2203 | vif->addr); | |
8ca151b5 | 2204 | } |
a20fd398 | 2205 | |
e59647ea | 2206 | iwl_mvm_recalc_multicast(mvm); |
c87163b9 | 2207 | iwl_mvm_configure_bcast_filter(mvm, vif); |
e59647ea | 2208 | |
a20fd398 AO |
2209 | /* reset rssi values */ |
2210 | mvmvif->bf_data.ave_beacon_signal = 0; | |
2211 | ||
8e484f0b | 2212 | iwl_mvm_bt_coex_vif_change(mvm); |
f94045ed EG |
2213 | iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, |
2214 | IEEE80211_SMPS_AUTOMATIC); | |
989c6505 | 2215 | } else if (changes & BSS_CHANGED_BEACON_INFO) { |
210a544e JB |
2216 | /* |
2217 | * We received a beacon _after_ association so | |
2218 | * remove the session protection. | |
2219 | */ | |
2220 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2221 | &mvmvif->time_event_data); | |
8ca151b5 | 2222 | } |
cc87d322 EH |
2223 | |
2224 | if (changes & BSS_CHANGED_BEACON_INFO) { | |
2225 | iwl_mvm_sf_update(mvm, vif, false); | |
2226 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); | |
2227 | } | |
2228 | ||
1bc10d3b JB |
2229 | if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) { |
2230 | ret = iwl_mvm_power_update_mac(mvm); | |
2231 | if (ret) | |
2232 | IWL_ERR(mvm, "failed to update power mode\n"); | |
2233 | } | |
2234 | ||
88f2fd73 MG |
2235 | if (changes & BSS_CHANGED_TXPOWER) { |
2236 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2237 | bss_conf->txpower); | |
2238 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2239 | } | |
a20fd398 AO |
2240 | |
2241 | if (changes & BSS_CHANGED_CQM) { | |
3c6acb61 | 2242 | IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); |
a20fd398 AO |
2243 | /* reset cqm events tracking */ |
2244 | mvmvif->bf_data.last_cqm_event = 0; | |
fa7b2e7f AA |
2245 | if (mvmvif->bf_data.bf_enabled) { |
2246 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
2247 | if (ret) | |
2248 | IWL_ERR(mvm, | |
2249 | "failed to update CQM thresholds\n"); | |
2250 | } | |
a20fd398 | 2251 | } |
2ee8f021 EP |
2252 | |
2253 | if (changes & BSS_CHANGED_ARP_FILTER) { | |
3c6acb61 | 2254 | IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); |
2ee8f021 EP |
2255 | iwl_mvm_configure_bcast_filter(mvm, vif); |
2256 | } | |
8ca151b5 JB |
2257 | } |
2258 | ||
5023d966 JB |
2259 | static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, |
2260 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2261 | { |
2262 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2263 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2264 | int ret; | |
2265 | ||
576eeee9 EP |
2266 | /* |
2267 | * iwl_mvm_mac_ctxt_add() might read directly from the device | |
2268 | * (the system time), so make sure it is available. | |
2269 | */ | |
2270 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP); | |
2271 | if (ret) | |
2272 | return ret; | |
2273 | ||
8ca151b5 JB |
2274 | mutex_lock(&mvm->mutex); |
2275 | ||
2276 | /* Send the beacon template */ | |
2277 | ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif); | |
2278 | if (ret) | |
2279 | goto out_unlock; | |
2280 | ||
6e97b0d2 IP |
2281 | /* |
2282 | * Re-calculate the tsf id, as the master-slave relations depend on the | |
2283 | * beacon interval, which was not known when the AP interface was added. | |
2284 | */ | |
2285 | if (vif->type == NL80211_IFTYPE_AP) | |
2286 | iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); | |
2287 | ||
8ca151b5 JB |
2288 | /* Add the mac context */ |
2289 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
2290 | if (ret) | |
2291 | goto out_unlock; | |
2292 | ||
2293 | /* Perform the binding */ | |
2294 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
2295 | if (ret) | |
2296 | goto out_remove; | |
2297 | ||
8ca151b5 JB |
2298 | /* Send the bcast station. At this stage the TBTT and DTIM time events |
2299 | * are added and applied to the scheduler */ | |
013290aa | 2300 | ret = iwl_mvm_send_add_bcast_sta(mvm, vif); |
8ca151b5 JB |
2301 | if (ret) |
2302 | goto out_unbind; | |
2303 | ||
5691e218 IP |
2304 | /* must be set before quota calculations */ |
2305 | mvmvif->ap_ibss_active = true; | |
2306 | ||
a11e144e | 2307 | /* power updated needs to be done before quotas */ |
999609f1 | 2308 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2309 | |
7754ae79 | 2310 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 | 2311 | if (ret) |
a11e144e | 2312 | goto out_quota_failed; |
8ca151b5 | 2313 | |
5023d966 | 2314 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2315 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2316 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2317 | |
29a90a49 EP |
2318 | iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); |
2319 | ||
8e484f0b | 2320 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2321 | |
f697267f AN |
2322 | /* we don't support TDLS during DCM */ |
2323 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2324 | iwl_mvm_teardown_tdls_peers(mvm); | |
2325 | ||
939e4904 | 2326 | goto out_unlock; |
8ca151b5 | 2327 | |
a11e144e | 2328 | out_quota_failed: |
999609f1 | 2329 | iwl_mvm_power_update_mac(mvm); |
5691e218 | 2330 | mvmvif->ap_ibss_active = false; |
013290aa | 2331 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 JB |
2332 | out_unbind: |
2333 | iwl_mvm_binding_remove_vif(mvm, vif); | |
2334 | out_remove: | |
2335 | iwl_mvm_mac_ctxt_remove(mvm, vif); | |
2336 | out_unlock: | |
2337 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2338 | iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP); |
8ca151b5 JB |
2339 | return ret; |
2340 | } | |
2341 | ||
5023d966 JB |
2342 | static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, |
2343 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
2344 | { |
2345 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2346 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2347 | ||
38a12b5b JB |
2348 | iwl_mvm_prepare_mac_removal(mvm, vif); |
2349 | ||
8ca151b5 JB |
2350 | mutex_lock(&mvm->mutex); |
2351 | ||
664322fa | 2352 | /* Handle AP stop while in CSA */ |
7f0a7c67 AO |
2353 | if (rcu_access_pointer(mvm->csa_vif) == vif) { |
2354 | iwl_mvm_remove_time_event(mvm, mvmvif, | |
2355 | &mvmvif->time_event_data); | |
664322fa | 2356 | RCU_INIT_POINTER(mvm->csa_vif, NULL); |
7f0a7c67 | 2357 | } |
664322fa | 2358 | |
003e5236 AO |
2359 | if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) { |
2360 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
2361 | mvm->csa_tx_block_bcn_timeout = 0; | |
2362 | } | |
2363 | ||
5023d966 | 2364 | mvmvif->ap_ibss_active = false; |
1c87bbad | 2365 | mvm->ap_last_beacon_gp2 = 0; |
8ca151b5 | 2366 | |
8e484f0b | 2367 | iwl_mvm_bt_coex_vif_change(mvm); |
dac94da8 | 2368 | |
29a90a49 EP |
2369 | iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); |
2370 | ||
5023d966 | 2371 | /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ |
8ca151b5 | 2372 | if (vif->p2p && mvm->p2p_device_vif) |
3dfd3a97 | 2373 | iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL); |
8ca151b5 | 2374 | |
7754ae79 | 2375 | iwl_mvm_update_quotas(mvm, false, NULL); |
013290aa | 2376 | iwl_mvm_send_rm_bcast_sta(mvm, vif); |
8ca151b5 | 2377 | iwl_mvm_binding_remove_vif(mvm, vif); |
a11e144e | 2378 | |
999609f1 | 2379 | iwl_mvm_power_update_mac(mvm); |
a11e144e | 2380 | |
8ca151b5 JB |
2381 | iwl_mvm_mac_ctxt_remove(mvm, vif); |
2382 | ||
2383 | mutex_unlock(&mvm->mutex); | |
2384 | } | |
2385 | ||
5023d966 JB |
2386 | static void |
2387 | iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, | |
2388 | struct ieee80211_vif *vif, | |
2389 | struct ieee80211_bss_conf *bss_conf, | |
2390 | u32 changes) | |
8ca151b5 | 2391 | { |
be2056fc | 2392 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8a5e3660 | 2393 | |
be2056fc IP |
2394 | /* Changes will be applied when the AP/IBSS is started */ |
2395 | if (!mvmvif->ap_ibss_active) | |
2396 | return; | |
2397 | ||
863230da | 2398 | if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | |
f7d8b702 | 2399 | BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) && |
3dfd3a97 | 2400 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL)) |
863230da | 2401 | IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); |
8a5e3660 | 2402 | |
8ca151b5 | 2403 | /* Need to send a new beacon template to the FW */ |
863230da JB |
2404 | if (changes & BSS_CHANGED_BEACON && |
2405 | iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) | |
2406 | IWL_WARN(mvm, "Failed updating beacon data\n"); | |
79b7a69d HD |
2407 | |
2408 | if (changes & BSS_CHANGED_TXPOWER) { | |
2409 | IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", | |
2410 | bss_conf->txpower); | |
2411 | iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); | |
2412 | } | |
2413 | ||
8ca151b5 JB |
2414 | } |
2415 | ||
2416 | static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, | |
2417 | struct ieee80211_vif *vif, | |
2418 | struct ieee80211_bss_conf *bss_conf, | |
2419 | u32 changes) | |
2420 | { | |
2421 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2422 | ||
576eeee9 EP |
2423 | /* |
2424 | * iwl_mvm_bss_info_changed_station() might call | |
2425 | * iwl_mvm_protect_session(), which reads directly from | |
2426 | * the device (the system time), so make sure it is available. | |
2427 | */ | |
2428 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED)) | |
2429 | return; | |
2430 | ||
8ca151b5 JB |
2431 | mutex_lock(&mvm->mutex); |
2432 | ||
7576d54f | 2433 | if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) |
c7d42480 | 2434 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); |
723f02ed | 2435 | |
8ca151b5 JB |
2436 | switch (vif->type) { |
2437 | case NL80211_IFTYPE_STATION: | |
2438 | iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); | |
2439 | break; | |
2440 | case NL80211_IFTYPE_AP: | |
5023d966 JB |
2441 | case NL80211_IFTYPE_ADHOC: |
2442 | iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); | |
8ca151b5 JB |
2443 | break; |
2444 | default: | |
2445 | /* shouldn't happen */ | |
2446 | WARN_ON_ONCE(1); | |
2447 | } | |
2448 | ||
2449 | mutex_unlock(&mvm->mutex); | |
576eeee9 | 2450 | iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED); |
8ca151b5 JB |
2451 | } |
2452 | ||
2453 | static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, | |
2454 | struct ieee80211_vif *vif, | |
c56ef672 | 2455 | struct ieee80211_scan_request *hw_req) |
8ca151b5 JB |
2456 | { |
2457 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2458 | int ret; | |
2459 | ||
6749dd80 LC |
2460 | if (hw_req->req.n_channels == 0 || |
2461 | hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels) | |
8ca151b5 JB |
2462 | return -EINVAL; |
2463 | ||
bd9564da | 2464 | mutex_lock(&mvm->mutex); |
6749dd80 | 2465 | ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies); |
8ca151b5 | 2466 | mutex_unlock(&mvm->mutex); |
6749dd80 | 2467 | |
8ca151b5 JB |
2468 | return ret; |
2469 | } | |
2470 | ||
2471 | static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, | |
2472 | struct ieee80211_vif *vif) | |
2473 | { | |
2474 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2475 | ||
2476 | mutex_lock(&mvm->mutex); | |
2477 | ||
e7d3abab LC |
2478 | /* Due to a race condition, it's possible that mac80211 asks |
2479 | * us to stop a hw_scan when it's already stopped. This can | |
2480 | * happen, for instance, if we stopped the scan ourselves, | |
2481 | * called ieee80211_scan_completed() and the userspace called | |
2482 | * cancel scan scan before ieee80211_scan_work() could run. | |
2483 | * To handle that, simply return if the scan is not running. | |
2484 | */ | |
262888fc | 2485 | if (mvm->scan_status & IWL_MVM_SCAN_REGULAR) |
c7d42480 | 2486 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
8ca151b5 JB |
2487 | |
2488 | mutex_unlock(&mvm->mutex); | |
2489 | } | |
2490 | ||
2491 | static void | |
2492 | iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, | |
3e56eadf | 2493 | struct ieee80211_sta *sta, u16 tids, |
8ca151b5 JB |
2494 | int num_frames, |
2495 | enum ieee80211_frame_release_type reason, | |
2496 | bool more_data) | |
2497 | { | |
2498 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 | 2499 | |
3e56eadf | 2500 | /* Called when we need to transmit (a) frame(s) from mac80211 */ |
8ca151b5 | 2501 | |
3e56eadf JB |
2502 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, |
2503 | tids, more_data, false); | |
2504 | } | |
2505 | ||
2506 | static void | |
2507 | iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, | |
2508 | struct ieee80211_sta *sta, u16 tids, | |
2509 | int num_frames, | |
2510 | enum ieee80211_frame_release_type reason, | |
2511 | bool more_data) | |
2512 | { | |
2513 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2514 | ||
2515 | /* Called when we need to transmit (a) frame(s) from agg queue */ | |
2516 | ||
2517 | iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, | |
2518 | tids, more_data, true); | |
8ca151b5 JB |
2519 | } |
2520 | ||
2521 | static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, | |
2522 | struct ieee80211_vif *vif, | |
2523 | enum sta_notify_cmd cmd, | |
2524 | struct ieee80211_sta *sta) | |
2525 | { | |
2526 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
5b577a90 | 2527 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); |
c22b0ff5 | 2528 | unsigned long txqs = 0, tids = 0; |
3e56eadf | 2529 | int tid; |
8ca151b5 | 2530 | |
c22b0ff5 EG |
2531 | spin_lock_bh(&mvmsta->lock); |
2532 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
2533 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
2534 | ||
2535 | if (tid_data->state != IWL_AGG_ON && | |
2536 | tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) | |
2537 | continue; | |
2538 | ||
2539 | __set_bit(tid_data->txq_id, &txqs); | |
2540 | ||
2541 | if (iwl_mvm_tid_queued(tid_data) == 0) | |
2542 | continue; | |
2543 | ||
2544 | __set_bit(tid, &tids); | |
2545 | } | |
2546 | ||
8ca151b5 JB |
2547 | switch (cmd) { |
2548 | case STA_NOTIFY_SLEEP: | |
e3d4bc8c | 2549 | if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) |
8ca151b5 | 2550 | ieee80211_sta_block_awake(hw, sta, true); |
3e56eadf | 2551 | |
c22b0ff5 | 2552 | for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT) |
3e56eadf | 2553 | ieee80211_sta_set_buffered(sta, tid, true); |
c22b0ff5 EG |
2554 | |
2555 | if (txqs) | |
2556 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, true); | |
8ca151b5 JB |
2557 | /* |
2558 | * The fw updates the STA to be asleep. Tx packets on the Tx | |
2559 | * queues to this station will not be transmitted. The fw will | |
2560 | * send a Tx response with TX_STATUS_FAIL_DEST_PS. | |
2561 | */ | |
2562 | break; | |
2563 | case STA_NOTIFY_AWAKE: | |
881acd89 | 2564 | if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 | 2565 | break; |
c22b0ff5 EG |
2566 | |
2567 | if (txqs) | |
2568 | iwl_trans_freeze_txq_timer(mvm->trans, txqs, false); | |
9cc40712 | 2569 | iwl_mvm_sta_modify_ps_wake(mvm, sta); |
8ca151b5 JB |
2570 | break; |
2571 | default: | |
2572 | break; | |
2573 | } | |
c22b0ff5 | 2574 | spin_unlock_bh(&mvmsta->lock); |
8ca151b5 JB |
2575 | } |
2576 | ||
1ddbbb0c JB |
2577 | static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, |
2578 | struct ieee80211_vif *vif, | |
2579 | struct ieee80211_sta *sta) | |
2580 | { | |
2581 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 2582 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
1ddbbb0c JB |
2583 | |
2584 | /* | |
2585 | * This is called before mac80211 does RCU synchronisation, | |
2586 | * so here we already invalidate our internal RCU-protected | |
2587 | * station pointer. The rest of the code will thus no longer | |
2588 | * be able to find the station this way, and we don't rely | |
2589 | * on further RCU synchronisation after the sta_state() | |
2590 | * callback deleted the station. | |
2591 | */ | |
2592 | mutex_lock(&mvm->mutex); | |
2593 | if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) | |
2594 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
2595 | ERR_PTR(-ENOENT)); | |
2596 | mutex_unlock(&mvm->mutex); | |
2597 | } | |
2598 | ||
bd1ba664 JB |
2599 | static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
2600 | const u8 *bssid) | |
2601 | { | |
2602 | if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT)) | |
2603 | return; | |
2604 | ||
2605 | if (iwlwifi_mod_params.uapsd_disable) { | |
2606 | vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; | |
2607 | return; | |
2608 | } | |
2609 | ||
2610 | vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; | |
2611 | } | |
2612 | ||
8ca151b5 JB |
2613 | static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, |
2614 | struct ieee80211_vif *vif, | |
2615 | struct ieee80211_sta *sta, | |
2616 | enum ieee80211_sta_state old_state, | |
2617 | enum ieee80211_sta_state new_state) | |
2618 | { | |
2619 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2620 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2621 | int ret; | |
2622 | ||
2623 | IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n", | |
2624 | sta->addr, old_state, new_state); | |
2625 | ||
2626 | /* this would be a mac80211 bug ... but don't crash */ | |
2627 | if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) | |
2628 | return -EINVAL; | |
2629 | ||
2630 | /* if a STA is being removed, reuse its ID */ | |
2631 | flush_work(&mvm->sta_drained_wk); | |
2632 | ||
2633 | mutex_lock(&mvm->mutex); | |
2634 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2635 | new_state == IEEE80211_STA_NONE) { | |
48bc1307 JB |
2636 | /* |
2637 | * Firmware bug - it'll crash if the beacon interval is less | |
2638 | * than 16. We can't avoid connecting at all, so refuse the | |
2639 | * station state change, this will cause mac80211 to abandon | |
2640 | * attempts to connect to this AP, and eventually wpa_s will | |
2641 | * blacklist the AP... | |
2642 | */ | |
2643 | if (vif->type == NL80211_IFTYPE_STATION && | |
2644 | vif->bss_conf.beacon_int < 16) { | |
2645 | IWL_ERR(mvm, | |
2646 | "AP %pM beacon interval is %d, refusing due to firmware bug!\n", | |
2647 | sta->addr, vif->bss_conf.beacon_int); | |
2648 | ret = -EINVAL; | |
2649 | goto out_unlock; | |
2650 | } | |
cf7b491d AN |
2651 | |
2652 | if (sta->tdls && | |
2653 | (vif->p2p || | |
fa3d07e4 AN |
2654 | iwl_mvm_tdls_sta_count(mvm, NULL) == |
2655 | IWL_MVM_TDLS_STA_COUNT || | |
cf7b491d AN |
2656 | iwl_mvm_phy_ctx_count(mvm) > 1)) { |
2657 | IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n"); | |
2658 | ret = -EBUSY; | |
2659 | goto out_unlock; | |
2660 | } | |
2661 | ||
8ca151b5 | 2662 | ret = iwl_mvm_add_sta(mvm, vif, sta); |
fa3d07e4 AN |
2663 | if (sta->tdls && ret == 0) |
2664 | iwl_mvm_recalc_tdls_state(mvm, vif, true); | |
8ca151b5 JB |
2665 | } else if (old_state == IEEE80211_STA_NONE && |
2666 | new_state == IEEE80211_STA_AUTH) { | |
e820c2da HD |
2667 | /* |
2668 | * EBS may be disabled due to previous failures reported by FW. | |
2669 | * Reset EBS status here assuming environment has been changed. | |
2670 | */ | |
2671 | mvm->last_ebs_successful = true; | |
bd1ba664 | 2672 | iwl_mvm_check_uapsd(mvm, vif, sta->addr); |
8ca151b5 JB |
2673 | ret = 0; |
2674 | } else if (old_state == IEEE80211_STA_AUTH && | |
2675 | new_state == IEEE80211_STA_ASSOC) { | |
7a453973 JB |
2676 | ret = iwl_mvm_update_sta(mvm, vif, sta); |
2677 | if (ret == 0) | |
2678 | iwl_mvm_rs_rate_init(mvm, sta, | |
b87c2179 ES |
2679 | mvmvif->phy_ctxt->channel->band, |
2680 | true); | |
8ca151b5 JB |
2681 | } else if (old_state == IEEE80211_STA_ASSOC && |
2682 | new_state == IEEE80211_STA_AUTHORIZED) { | |
f59e0e3c AN |
2683 | |
2684 | /* we don't support TDLS during DCM */ | |
2685 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
2686 | iwl_mvm_teardown_tdls_peers(mvm); | |
2687 | ||
7df15b1e | 2688 | /* enable beacon filtering */ |
fa7b2e7f | 2689 | WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2690 | ret = 0; |
2691 | } else if (old_state == IEEE80211_STA_AUTHORIZED && | |
2692 | new_state == IEEE80211_STA_ASSOC) { | |
7df15b1e | 2693 | /* disable beacon filtering */ |
a1022927 | 2694 | WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); |
8ca151b5 JB |
2695 | ret = 0; |
2696 | } else if (old_state == IEEE80211_STA_ASSOC && | |
2697 | new_state == IEEE80211_STA_AUTH) { | |
2698 | ret = 0; | |
2699 | } else if (old_state == IEEE80211_STA_AUTH && | |
2700 | new_state == IEEE80211_STA_NONE) { | |
2701 | ret = 0; | |
2702 | } else if (old_state == IEEE80211_STA_NONE && | |
2703 | new_state == IEEE80211_STA_NOTEXIST) { | |
2704 | ret = iwl_mvm_rm_sta(mvm, vif, sta); | |
fa3d07e4 AN |
2705 | if (sta->tdls) |
2706 | iwl_mvm_recalc_tdls_state(mvm, vif, false); | |
8ca151b5 JB |
2707 | } else { |
2708 | ret = -EIO; | |
2709 | } | |
48bc1307 | 2710 | out_unlock: |
8ca151b5 JB |
2711 | mutex_unlock(&mvm->mutex); |
2712 | ||
9c126cd6 LK |
2713 | if (sta->tdls && ret == 0) { |
2714 | if (old_state == IEEE80211_STA_NOTEXIST && | |
2715 | new_state == IEEE80211_STA_NONE) | |
2716 | ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2717 | else if (old_state == IEEE80211_STA_NONE && | |
2718 | new_state == IEEE80211_STA_NOTEXIST) | |
2719 | ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID); | |
2720 | } | |
2721 | ||
8ca151b5 JB |
2722 | return ret; |
2723 | } | |
2724 | ||
2725 | static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
2726 | { | |
2727 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2728 | ||
2729 | mvm->rts_threshold = value; | |
2730 | ||
2731 | return 0; | |
2732 | } | |
2733 | ||
1f3b0ff8 LE |
2734 | static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, |
2735 | struct ieee80211_vif *vif, | |
2736 | struct ieee80211_sta *sta, u32 changed) | |
2737 | { | |
2738 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2739 | ||
2740 | if (vif->type == NL80211_IFTYPE_STATION && | |
2741 | changed & IEEE80211_RC_NSS_CHANGED) | |
2742 | iwl_mvm_sf_update(mvm, vif, false); | |
2743 | } | |
2744 | ||
8ca151b5 JB |
2745 | static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, |
2746 | struct ieee80211_vif *vif, u16 ac, | |
2747 | const struct ieee80211_tx_queue_params *params) | |
2748 | { | |
2749 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2750 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2751 | ||
2752 | mvmvif->queue_params[ac] = *params; | |
2753 | ||
2754 | /* | |
2755 | * No need to update right away, we'll get BSS_CHANGED_QOS | |
2756 | * The exception is P2P_DEVICE interface which needs immediate update. | |
2757 | */ | |
2758 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
2759 | int ret; | |
2760 | ||
2761 | mutex_lock(&mvm->mutex); | |
3dfd3a97 | 2762 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
2763 | mutex_unlock(&mvm->mutex); |
2764 | return ret; | |
2765 | } | |
2766 | return 0; | |
2767 | } | |
2768 | ||
2769 | static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, | |
2770 | struct ieee80211_vif *vif) | |
2771 | { | |
2772 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2773 | u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS, | |
2774 | 200 + vif->bss_conf.beacon_int); | |
2775 | u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS, | |
2776 | 100 + vif->bss_conf.beacon_int); | |
2777 | ||
2778 | if (WARN_ON_ONCE(vif->bss_conf.assoc)) | |
2779 | return; | |
2780 | ||
576eeee9 EP |
2781 | /* |
2782 | * iwl_mvm_protect_session() reads directly from the device | |
2783 | * (the system time), so make sure it is available. | |
2784 | */ | |
2785 | if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX)) | |
2786 | return; | |
2787 | ||
8ca151b5 JB |
2788 | mutex_lock(&mvm->mutex); |
2789 | /* Try really hard to protect the session and hear a beacon */ | |
d20d37bc | 2790 | iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false); |
8ca151b5 | 2791 | mutex_unlock(&mvm->mutex); |
576eeee9 EP |
2792 | |
2793 | iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX); | |
8ca151b5 JB |
2794 | } |
2795 | ||
35a000b7 DS |
2796 | static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, |
2797 | struct ieee80211_vif *vif, | |
2798 | struct cfg80211_sched_scan_request *req, | |
633e2713 | 2799 | struct ieee80211_scan_ies *ies) |
35a000b7 DS |
2800 | { |
2801 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
6749dd80 | 2802 | |
35a000b7 DS |
2803 | int ret; |
2804 | ||
bd9564da LC |
2805 | mutex_lock(&mvm->mutex); |
2806 | ||
1f940386 | 2807 | if (!vif->bss_conf.idle) { |
bd5e4744 DS |
2808 | ret = -EBUSY; |
2809 | goto out; | |
2810 | } | |
2811 | ||
19945dfb | 2812 | ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED); |
d2496221 | 2813 | |
35a000b7 DS |
2814 | out: |
2815 | mutex_unlock(&mvm->mutex); | |
2816 | return ret; | |
2817 | } | |
2818 | ||
37e3308c JB |
2819 | static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, |
2820 | struct ieee80211_vif *vif) | |
35a000b7 DS |
2821 | { |
2822 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
33ea27f6 | 2823 | int ret; |
35a000b7 DS |
2824 | |
2825 | mutex_lock(&mvm->mutex); | |
e7d3abab LC |
2826 | |
2827 | /* Due to a race condition, it's possible that mac80211 asks | |
2828 | * us to stop a sched_scan when it's already stopped. This | |
2829 | * can happen, for instance, if we stopped the scan ourselves, | |
2830 | * called ieee80211_sched_scan_stopped() and the userspace called | |
2831 | * stop sched scan scan before ieee80211_sched_scan_stopped_work() | |
2832 | * could run. To handle this, simply return if the scan is | |
2833 | * not running. | |
2834 | */ | |
262888fc | 2835 | if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) { |
e7d3abab LC |
2836 | mutex_unlock(&mvm->mutex); |
2837 | return 0; | |
2838 | } | |
2839 | ||
c7d42480 | 2840 | ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); |
35a000b7 | 2841 | mutex_unlock(&mvm->mutex); |
33ea27f6 | 2842 | iwl_mvm_wait_for_async_handlers(mvm); |
37e3308c | 2843 | |
33ea27f6 | 2844 | return ret; |
35a000b7 DS |
2845 | } |
2846 | ||
8ca151b5 JB |
2847 | static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, |
2848 | enum set_key_cmd cmd, | |
2849 | struct ieee80211_vif *vif, | |
2850 | struct ieee80211_sta *sta, | |
2851 | struct ieee80211_key_conf *key) | |
2852 | { | |
2853 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2854 | int ret; | |
2855 | ||
2856 | if (iwlwifi_mod_params.sw_crypto) { | |
2857 | IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n"); | |
2858 | return -EOPNOTSUPP; | |
2859 | } | |
2860 | ||
2861 | switch (key->cipher) { | |
2862 | case WLAN_CIPHER_SUITE_TKIP: | |
2863 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; | |
2864 | /* fall-through */ | |
2865 | case WLAN_CIPHER_SUITE_CCMP: | |
2866 | key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
2867 | break; | |
2868 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
2869 | WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE)); | |
2870 | break; | |
2871 | case WLAN_CIPHER_SUITE_WEP40: | |
2872 | case WLAN_CIPHER_SUITE_WEP104: | |
ba3943b0 JB |
2873 | /* For non-client mode, only use WEP keys for TX as we probably |
2874 | * don't have a station yet anyway and would then have to keep | |
2875 | * track of the keys, linking them to each of the clients/peers | |
2876 | * as they appear. For now, don't do that, for performance WEP | |
2877 | * offload doesn't really matter much, but we need it for some | |
2878 | * other offload features in client mode. | |
8ca151b5 | 2879 | */ |
ba3943b0 JB |
2880 | if (vif->type != NL80211_IFTYPE_STATION) |
2881 | return 0; | |
2882 | break; | |
8ca151b5 | 2883 | default: |
e36e5433 MS |
2884 | /* currently FW supports only one optional cipher scheme */ |
2885 | if (hw->n_cipher_schemes && | |
2886 | hw->cipher_schemes->cipher == key->cipher) | |
2887 | key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; | |
2888 | else | |
2889 | return -EOPNOTSUPP; | |
8ca151b5 JB |
2890 | } |
2891 | ||
2892 | mutex_lock(&mvm->mutex); | |
2893 | ||
2894 | switch (cmd) { | |
2895 | case SET_KEY: | |
5023d966 JB |
2896 | if ((vif->type == NL80211_IFTYPE_ADHOC || |
2897 | vif->type == NL80211_IFTYPE_AP) && !sta) { | |
2898 | /* | |
2899 | * GTK on AP interface is a TX-only key, return 0; | |
2900 | * on IBSS they're per-station and because we're lazy | |
2901 | * we don't support them for RX, so do the same. | |
2902 | */ | |
6caffd4f JB |
2903 | ret = 0; |
2904 | key->hw_key_idx = STA_KEY_IDX_INVALID; | |
2905 | break; | |
2906 | } | |
2907 | ||
b546dcd6 JB |
2908 | /* During FW restart, in order to restore the state as it was, |
2909 | * don't try to reprogram keys we previously failed for. | |
2910 | */ | |
2911 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2912 | key->hw_key_idx == STA_KEY_IDX_INVALID) { | |
2913 | IWL_DEBUG_MAC80211(mvm, | |
2914 | "skip invalid idx key programming during restart\n"); | |
2915 | ret = 0; | |
2916 | break; | |
2917 | } | |
2918 | ||
8ca151b5 | 2919 | IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n"); |
b546dcd6 JB |
2920 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, |
2921 | test_bit(IWL_MVM_STATUS_IN_HW_RESTART, | |
2922 | &mvm->status)); | |
8ca151b5 JB |
2923 | if (ret) { |
2924 | IWL_WARN(mvm, "set key failed\n"); | |
2925 | /* | |
2926 | * can't add key for RX, but we don't need it | |
2927 | * in the device for TX so still return 0 | |
2928 | */ | |
6caffd4f | 2929 | key->hw_key_idx = STA_KEY_IDX_INVALID; |
8ca151b5 JB |
2930 | ret = 0; |
2931 | } | |
2932 | ||
2933 | break; | |
2934 | case DISABLE_KEY: | |
6caffd4f JB |
2935 | if (key->hw_key_idx == STA_KEY_IDX_INVALID) { |
2936 | ret = 0; | |
2937 | break; | |
2938 | } | |
2939 | ||
8ca151b5 JB |
2940 | IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n"); |
2941 | ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key); | |
2942 | break; | |
2943 | default: | |
2944 | ret = -EINVAL; | |
2945 | } | |
2946 | ||
2947 | mutex_unlock(&mvm->mutex); | |
2948 | return ret; | |
2949 | } | |
2950 | ||
2951 | static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, | |
2952 | struct ieee80211_vif *vif, | |
2953 | struct ieee80211_key_conf *keyconf, | |
2954 | struct ieee80211_sta *sta, | |
2955 | u32 iv32, u16 *phase1key) | |
2956 | { | |
2957 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2958 | ||
5023d966 JB |
2959 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) |
2960 | return; | |
2961 | ||
8ca151b5 JB |
2962 | iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); |
2963 | } | |
2964 | ||
2965 | ||
b112889c AM |
2966 | static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait, |
2967 | struct iwl_rx_packet *pkt, void *data) | |
2968 | { | |
2969 | struct iwl_mvm *mvm = | |
2970 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
2971 | struct iwl_hs20_roc_res *resp; | |
2972 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
2973 | struct iwl_mvm_time_event_data *te_data = data; | |
2974 | ||
2975 | if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD)) | |
2976 | return true; | |
2977 | ||
2978 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
2979 | IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n"); | |
2980 | return true; | |
2981 | } | |
2982 | ||
2983 | resp = (void *)pkt->data; | |
2984 | ||
2985 | IWL_DEBUG_TE(mvm, | |
2986 | "Aux ROC: Recieved response from ucode: status=%d uid=%d\n", | |
2987 | resp->status, resp->event_unique_id); | |
2988 | ||
2989 | te_data->uid = le32_to_cpu(resp->event_unique_id); | |
2990 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
2991 | te_data->uid); | |
2992 | ||
2993 | spin_lock_bh(&mvm->time_event_lock); | |
2994 | list_add_tail(&te_data->list, &mvm->aux_roc_te_list); | |
2995 | spin_unlock_bh(&mvm->time_event_lock); | |
2996 | ||
2997 | return true; | |
2998 | } | |
2999 | ||
35d3dab5 | 3000 | #define AUX_ROC_MAX_DELAY_ON_CHANNEL 200 |
b112889c AM |
3001 | static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm, |
3002 | struct ieee80211_channel *channel, | |
3003 | struct ieee80211_vif *vif, | |
3004 | int duration) | |
3005 | { | |
3006 | int res, time_reg = DEVICE_SYSTEM_TIME_REG; | |
3007 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3008 | struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data; | |
3009 | static const u8 time_event_response[] = { HOT_SPOT_CMD }; | |
3010 | struct iwl_notification_wait wait_time_event; | |
3011 | struct iwl_hs20_roc_req aux_roc_req = { | |
3012 | .action = cpu_to_le32(FW_CTXT_ACTION_ADD), | |
3013 | .id_and_color = | |
3014 | cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)), | |
3015 | .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id), | |
3016 | /* Set the channel info data */ | |
3017 | .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ? | |
3018 | PHY_BAND_24 : PHY_BAND_5, | |
3019 | .channel_info.channel = channel->hw_value, | |
3020 | .channel_info.width = PHY_VHT_CHANNEL_MODE20, | |
3021 | /* Set the time and duration */ | |
3022 | .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)), | |
3023 | .apply_time_max_delay = | |
3024 | cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)), | |
3025 | .duration = cpu_to_le32(MSEC_TO_TU(duration)), | |
3026 | }; | |
3027 | ||
3028 | /* Set the node address */ | |
3029 | memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN); | |
3030 | ||
a6cc5163 MG |
3031 | lockdep_assert_held(&mvm->mutex); |
3032 | ||
3033 | spin_lock_bh(&mvm->time_event_lock); | |
3034 | ||
3035 | if (WARN_ON(te_data->id == HOT_SPOT_CMD)) { | |
3036 | spin_unlock_bh(&mvm->time_event_lock); | |
3037 | return -EIO; | |
3038 | } | |
3039 | ||
b112889c AM |
3040 | te_data->vif = vif; |
3041 | te_data->duration = duration; | |
3042 | te_data->id = HOT_SPOT_CMD; | |
3043 | ||
b112889c AM |
3044 | spin_unlock_bh(&mvm->time_event_lock); |
3045 | ||
3046 | /* | |
3047 | * Use a notification wait, which really just processes the | |
3048 | * command response and doesn't wait for anything, in order | |
3049 | * to be able to process the response and get the UID inside | |
3050 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
3051 | * stores the buffer and then wakes up this thread, by which | |
3052 | * time another notification (that the time event started) | |
3053 | * might already be processed unsuccessfully. | |
3054 | */ | |
3055 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
3056 | time_event_response, | |
3057 | ARRAY_SIZE(time_event_response), | |
3058 | iwl_mvm_rx_aux_roc, te_data); | |
3059 | ||
3060 | res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req), | |
3061 | &aux_roc_req); | |
3062 | ||
3063 | if (res) { | |
3064 | IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res); | |
3065 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
3066 | goto out_clear_te; | |
3067 | } | |
3068 | ||
3069 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ | |
3070 | res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
3071 | /* should never fail */ | |
3072 | WARN_ON_ONCE(res); | |
3073 | ||
3074 | if (res) { | |
3075 | out_clear_te: | |
3076 | spin_lock_bh(&mvm->time_event_lock); | |
3077 | iwl_mvm_te_clear_data(mvm, te_data); | |
3078 | spin_unlock_bh(&mvm->time_event_lock); | |
3079 | } | |
3080 | ||
3081 | return res; | |
3082 | } | |
3083 | ||
8ca151b5 JB |
3084 | static int iwl_mvm_roc(struct ieee80211_hw *hw, |
3085 | struct ieee80211_vif *vif, | |
3086 | struct ieee80211_channel *channel, | |
d339d5ca IP |
3087 | int duration, |
3088 | enum ieee80211_roc_type type) | |
8ca151b5 JB |
3089 | { |
3090 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 | 3091 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
8ca151b5 | 3092 | struct cfg80211_chan_def chandef; |
31d385ae IP |
3093 | struct iwl_mvm_phy_ctxt *phy_ctxt; |
3094 | int ret, i; | |
3095 | ||
3096 | IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, | |
3097 | duration, type); | |
8ca151b5 | 3098 | |
6ed13164 MG |
3099 | flush_work(&mvm->roc_done_wk); |
3100 | ||
a6cc5163 MG |
3101 | mutex_lock(&mvm->mutex); |
3102 | ||
b112889c AM |
3103 | switch (vif->type) { |
3104 | case NL80211_IFTYPE_STATION: | |
5ac6c72e LC |
3105 | if (mvm->fw->ucode_capa.capa[0] & |
3106 | IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) { | |
3107 | /* Use aux roc framework (HS20) */ | |
3108 | ret = iwl_mvm_send_aux_roc_cmd(mvm, channel, | |
3109 | vif, duration); | |
3110 | goto out_unlock; | |
3111 | } | |
3112 | IWL_ERR(mvm, "hotspot not supported\n"); | |
3113 | ret = -EINVAL; | |
a6cc5163 | 3114 | goto out_unlock; |
b112889c AM |
3115 | case NL80211_IFTYPE_P2P_DEVICE: |
3116 | /* handle below */ | |
3117 | break; | |
3118 | default: | |
3119 | IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type); | |
a6cc5163 MG |
3120 | ret = -EINVAL; |
3121 | goto out_unlock; | |
8ca151b5 JB |
3122 | } |
3123 | ||
31d385ae IP |
3124 | for (i = 0; i < NUM_PHY_CTX; i++) { |
3125 | phy_ctxt = &mvm->phy_ctxts[i]; | |
3126 | if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) | |
3127 | continue; | |
3128 | ||
3129 | if (phy_ctxt->ref && channel == phy_ctxt->channel) { | |
3130 | /* | |
3131 | * Unbind the P2P_DEVICE from the current PHY context, | |
3132 | * and if the PHY context is not used remove it. | |
3133 | */ | |
3134 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3135 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3136 | goto out_unlock; | |
3137 | ||
3138 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3139 | ||
3140 | /* Bind the P2P_DEVICE to the current PHY Context */ | |
3141 | mvmvif->phy_ctxt = phy_ctxt; | |
3142 | ||
3143 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3144 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3145 | goto out_unlock; | |
3146 | ||
3147 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3148 | goto schedule_time_event; | |
3149 | } | |
3150 | } | |
3151 | ||
3152 | /* Need to update the PHY context only if the ROC channel changed */ | |
3153 | if (channel == mvmvif->phy_ctxt->channel) | |
3154 | goto schedule_time_event; | |
3155 | ||
8ca151b5 | 3156 | cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); |
8ca151b5 | 3157 | |
31d385ae IP |
3158 | /* |
3159 | * Change the PHY context configuration as it is currently referenced | |
3160 | * only by the P2P Device MAC | |
3161 | */ | |
3162 | if (mvmvif->phy_ctxt->ref == 1) { | |
3163 | ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, | |
3164 | &chandef, 1, 1); | |
3165 | if (ret) | |
3166 | goto out_unlock; | |
3167 | } else { | |
3168 | /* | |
3169 | * The PHY context is shared with other MACs. Need to remove the | |
3170 | * P2P Device from the binding, allocate an new PHY context and | |
3171 | * create a new binding | |
3172 | */ | |
3173 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); | |
3174 | if (!phy_ctxt) { | |
3175 | ret = -ENOSPC; | |
3176 | goto out_unlock; | |
3177 | } | |
3178 | ||
3179 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, | |
3180 | 1, 1); | |
3181 | if (ret) { | |
3182 | IWL_ERR(mvm, "Failed to change PHY context\n"); | |
3183 | goto out_unlock; | |
3184 | } | |
3185 | ||
3186 | /* Unbind the P2P_DEVICE from the current PHY context */ | |
3187 | ret = iwl_mvm_binding_remove_vif(mvm, vif); | |
3188 | if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) | |
3189 | goto out_unlock; | |
3190 | ||
3191 | iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); | |
3192 | ||
3193 | /* Bind the P2P_DEVICE to the new allocated PHY context */ | |
3194 | mvmvif->phy_ctxt = phy_ctxt; | |
3195 | ||
3196 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3197 | if (WARN(ret, "Failed binding P2P_DEVICE\n")) | |
3198 | goto out_unlock; | |
3199 | ||
3200 | iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); | |
3201 | } | |
3202 | ||
3203 | schedule_time_event: | |
8ca151b5 | 3204 | /* Schedule the time events */ |
e635c797 | 3205 | ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); |
8ca151b5 | 3206 | |
31d385ae | 3207 | out_unlock: |
8ca151b5 JB |
3208 | mutex_unlock(&mvm->mutex); |
3209 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
8ca151b5 JB |
3210 | return ret; |
3211 | } | |
3212 | ||
3213 | static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw) | |
3214 | { | |
3215 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3216 | ||
3217 | IWL_DEBUG_MAC80211(mvm, "enter\n"); | |
3218 | ||
3219 | mutex_lock(&mvm->mutex); | |
bf5da87f | 3220 | iwl_mvm_stop_roc(mvm); |
8ca151b5 JB |
3221 | mutex_unlock(&mvm->mutex); |
3222 | ||
3223 | IWL_DEBUG_MAC80211(mvm, "leave\n"); | |
3224 | return 0; | |
3225 | } | |
3226 | ||
b08c1d97 LC |
3227 | static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm, |
3228 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 | 3229 | { |
fe0f2de3 IP |
3230 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3231 | struct iwl_mvm_phy_ctxt *phy_ctxt; | |
8ca151b5 JB |
3232 | int ret; |
3233 | ||
b08c1d97 LC |
3234 | lockdep_assert_held(&mvm->mutex); |
3235 | ||
53a9d61e | 3236 | IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); |
fe0f2de3 | 3237 | |
fe0f2de3 IP |
3238 | phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); |
3239 | if (!phy_ctxt) { | |
3240 | ret = -ENOSPC; | |
3241 | goto out; | |
3242 | } | |
8ca151b5 | 3243 | |
dcbc3e1a | 3244 | ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
53a9d61e IP |
3245 | ctx->rx_chains_static, |
3246 | ctx->rx_chains_dynamic); | |
fe0f2de3 IP |
3247 | if (ret) { |
3248 | IWL_ERR(mvm, "Failed to add PHY context\n"); | |
3249 | goto out; | |
3250 | } | |
3251 | ||
53a9d61e | 3252 | iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); |
fe0f2de3 IP |
3253 | *phy_ctxt_id = phy_ctxt->id; |
3254 | out: | |
b08c1d97 LC |
3255 | return ret; |
3256 | } | |
3257 | ||
3258 | static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, | |
3259 | struct ieee80211_chanctx_conf *ctx) | |
3260 | { | |
3261 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3262 | int ret; | |
3263 | ||
3264 | mutex_lock(&mvm->mutex); | |
3265 | ret = __iwl_mvm_add_chanctx(mvm, ctx); | |
8ca151b5 | 3266 | mutex_unlock(&mvm->mutex); |
b08c1d97 | 3267 | |
8ca151b5 JB |
3268 | return ret; |
3269 | } | |
3270 | ||
b08c1d97 LC |
3271 | static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm, |
3272 | struct ieee80211_chanctx_conf *ctx) | |
3273 | { | |
3274 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; | |
3275 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
3276 | ||
3277 | lockdep_assert_held(&mvm->mutex); | |
3278 | ||
3279 | iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); | |
3280 | } | |
3281 | ||
8ca151b5 JB |
3282 | static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, |
3283 | struct ieee80211_chanctx_conf *ctx) | |
3284 | { | |
3285 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
8ca151b5 JB |
3286 | |
3287 | mutex_lock(&mvm->mutex); | |
b08c1d97 | 3288 | __iwl_mvm_remove_chanctx(mvm, ctx); |
8ca151b5 JB |
3289 | mutex_unlock(&mvm->mutex); |
3290 | } | |
3291 | ||
3292 | static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, | |
3293 | struct ieee80211_chanctx_conf *ctx, | |
3294 | u32 changed) | |
3295 | { | |
3296 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
fe0f2de3 IP |
3297 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3298 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 | 3299 | |
31d385ae IP |
3300 | if (WARN_ONCE((phy_ctxt->ref > 1) && |
3301 | (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | | |
3302 | IEEE80211_CHANCTX_CHANGE_RX_CHAINS | | |
2dceedae AN |
3303 | IEEE80211_CHANCTX_CHANGE_RADAR | |
3304 | IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), | |
31d385ae IP |
3305 | "Cannot change PHY. Ref=%d, changed=0x%X\n", |
3306 | phy_ctxt->ref, changed)) | |
3307 | return; | |
3308 | ||
8ca151b5 | 3309 | mutex_lock(&mvm->mutex); |
4d66449a | 3310 | iwl_mvm_bt_coex_vif_change(mvm); |
dcbc3e1a | 3311 | iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, |
8ca151b5 JB |
3312 | ctx->rx_chains_static, |
3313 | ctx->rx_chains_dynamic); | |
3314 | mutex_unlock(&mvm->mutex); | |
3315 | } | |
3316 | ||
b08c1d97 LC |
3317 | static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm, |
3318 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3319 | struct ieee80211_chanctx_conf *ctx, |
3320 | bool switching_chanctx) | |
8ca151b5 | 3321 | { |
fe0f2de3 IP |
3322 | u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; |
3323 | struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; | |
8ca151b5 JB |
3324 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
3325 | int ret; | |
3326 | ||
b08c1d97 | 3327 | lockdep_assert_held(&mvm->mutex); |
8ca151b5 | 3328 | |
fe0f2de3 | 3329 | mvmvif->phy_ctxt = phy_ctxt; |
8ca151b5 JB |
3330 | |
3331 | switch (vif->type) { | |
3332 | case NL80211_IFTYPE_AP: | |
4741dd04 LC |
3333 | /* only needed if we're switching chanctx (i.e. during CSA) */ |
3334 | if (switching_chanctx) { | |
bd3398e2 AO |
3335 | mvmvif->ap_ibss_active = true; |
3336 | break; | |
3337 | } | |
5023d966 | 3338 | case NL80211_IFTYPE_ADHOC: |
8ca151b5 JB |
3339 | /* |
3340 | * The AP binding flow is handled as part of the start_ap flow | |
5023d966 | 3341 | * (in bss_info_changed), similarly for IBSS. |
8ca151b5 JB |
3342 | */ |
3343 | ret = 0; | |
b08c1d97 | 3344 | goto out; |
8ca151b5 | 3345 | case NL80211_IFTYPE_STATION: |
2533edce | 3346 | break; |
8ca151b5 | 3347 | case NL80211_IFTYPE_MONITOR: |
2533edce LC |
3348 | /* always disable PS when a monitor interface is active */ |
3349 | mvmvif->ps_disabled = true; | |
8ca151b5 JB |
3350 | break; |
3351 | default: | |
3352 | ret = -EINVAL; | |
b08c1d97 | 3353 | goto out; |
8ca151b5 JB |
3354 | } |
3355 | ||
3356 | ret = iwl_mvm_binding_add_vif(mvm, vif); | |
3357 | if (ret) | |
b08c1d97 | 3358 | goto out; |
8ca151b5 JB |
3359 | |
3360 | /* | |
92d85562 AB |
3361 | * Power state must be updated before quotas, |
3362 | * otherwise fw will complain. | |
3363 | */ | |
999609f1 | 3364 | iwl_mvm_power_update_mac(mvm); |
92d85562 AB |
3365 | |
3366 | /* Setting the quota at this stage is only required for monitor | |
8ca151b5 JB |
3367 | * interfaces. For the other types, the bss_info changed flow |
3368 | * will handle quota settings. | |
3369 | */ | |
3370 | if (vif->type == NL80211_IFTYPE_MONITOR) { | |
1e1391ca | 3371 | mvmvif->monitor_active = true; |
7754ae79 | 3372 | ret = iwl_mvm_update_quotas(mvm, false, NULL); |
8ca151b5 JB |
3373 | if (ret) |
3374 | goto out_remove_binding; | |
3375 | } | |
3376 | ||
bd3398e2 | 3377 | /* Handle binding during CSA */ |
a57c688d | 3378 | if (vif->type == NL80211_IFTYPE_AP) { |
7754ae79 | 3379 | iwl_mvm_update_quotas(mvm, false, NULL); |
3dfd3a97 | 3380 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
bd3398e2 AO |
3381 | } |
3382 | ||
4741dd04 | 3383 | if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) { |
686e7fe1 LC |
3384 | u32 duration = 2 * vif->bss_conf.beacon_int; |
3385 | ||
3386 | /* iwl_mvm_protect_session() reads directly from the | |
3387 | * device (the system time), so make sure it is | |
3388 | * available. | |
3389 | */ | |
3390 | ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3391 | if (ret) | |
3392 | goto out_remove_binding; | |
3393 | ||
3394 | /* Protect the session to make sure we hear the first | |
3395 | * beacon on the new channel. | |
3396 | */ | |
3397 | iwl_mvm_protect_session(mvm, vif, duration, duration, | |
3398 | vif->bss_conf.beacon_int / 2, | |
3399 | true); | |
3400 | ||
3401 | iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA); | |
3402 | ||
7754ae79 | 3403 | iwl_mvm_update_quotas(mvm, false, NULL); |
0ce04ce7 LC |
3404 | } |
3405 | ||
b08c1d97 | 3406 | goto out; |
8ca151b5 | 3407 | |
b08c1d97 | 3408 | out_remove_binding: |
8ca151b5 | 3409 | iwl_mvm_binding_remove_vif(mvm, vif); |
999609f1 | 3410 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 | 3411 | out: |
8ca151b5 JB |
3412 | if (ret) |
3413 | mvmvif->phy_ctxt = NULL; | |
3414 | return ret; | |
3415 | } | |
b08c1d97 LC |
3416 | static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, |
3417 | struct ieee80211_vif *vif, | |
3418 | struct ieee80211_chanctx_conf *ctx) | |
8ca151b5 JB |
3419 | { |
3420 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b08c1d97 | 3421 | int ret; |
8ca151b5 JB |
3422 | |
3423 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3424 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false); |
b08c1d97 LC |
3425 | mutex_unlock(&mvm->mutex); |
3426 | ||
3427 | return ret; | |
3428 | } | |
3429 | ||
3430 | static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm, | |
3431 | struct ieee80211_vif *vif, | |
f0c97783 LC |
3432 | struct ieee80211_chanctx_conf *ctx, |
3433 | bool switching_chanctx) | |
b08c1d97 LC |
3434 | { |
3435 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
f0c97783 | 3436 | struct ieee80211_vif *disabled_vif = NULL; |
b08c1d97 LC |
3437 | |
3438 | lockdep_assert_held(&mvm->mutex); | |
8ca151b5 JB |
3439 | |
3440 | iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); | |
3441 | ||
8ca151b5 | 3442 | switch (vif->type) { |
5023d966 | 3443 | case NL80211_IFTYPE_ADHOC: |
b08c1d97 | 3444 | goto out; |
8ca151b5 | 3445 | case NL80211_IFTYPE_MONITOR: |
1e1391ca | 3446 | mvmvif->monitor_active = false; |
2533edce | 3447 | mvmvif->ps_disabled = false; |
8ca151b5 | 3448 | break; |
bd3398e2 AO |
3449 | case NL80211_IFTYPE_AP: |
3450 | /* This part is triggered only during CSA */ | |
4741dd04 | 3451 | if (!switching_chanctx || !mvmvif->ap_ibss_active) |
b08c1d97 | 3452 | goto out; |
bd3398e2 | 3453 | |
7ef0aab6 AO |
3454 | mvmvif->csa_countdown = false; |
3455 | ||
003e5236 AO |
3456 | /* Set CS bit on all the stations */ |
3457 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true); | |
3458 | ||
3459 | /* Save blocked iface, the timeout is set on the next beacon */ | |
3460 | rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif); | |
3461 | ||
bd3398e2 | 3462 | mvmvif->ap_ibss_active = false; |
f0c97783 LC |
3463 | break; |
3464 | case NL80211_IFTYPE_STATION: | |
3465 | if (!switching_chanctx) | |
3466 | break; | |
3467 | ||
3468 | disabled_vif = vif; | |
3469 | ||
3dfd3a97 | 3470 | iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL); |
f0c97783 | 3471 | break; |
8ca151b5 JB |
3472 | default: |
3473 | break; | |
3474 | } | |
3475 | ||
7754ae79 | 3476 | iwl_mvm_update_quotas(mvm, false, disabled_vif); |
1e1391ca | 3477 | iwl_mvm_binding_remove_vif(mvm, vif); |
1c2abf72 | 3478 | |
b08c1d97 | 3479 | out: |
a11e144e | 3480 | mvmvif->phy_ctxt = NULL; |
999609f1 | 3481 | iwl_mvm_power_update_mac(mvm); |
b08c1d97 LC |
3482 | } |
3483 | ||
3484 | static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, | |
3485 | struct ieee80211_vif *vif, | |
3486 | struct ieee80211_chanctx_conf *ctx) | |
3487 | { | |
3488 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3489 | ||
3490 | mutex_lock(&mvm->mutex); | |
f0c97783 | 3491 | __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false); |
8ca151b5 JB |
3492 | mutex_unlock(&mvm->mutex); |
3493 | } | |
3494 | ||
50cc9574 LC |
3495 | static int |
3496 | iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm, | |
3497 | struct ieee80211_vif_chanctx_switch *vifs) | |
b08c1d97 | 3498 | { |
b08c1d97 LC |
3499 | int ret; |
3500 | ||
b08c1d97 | 3501 | mutex_lock(&mvm->mutex); |
f0c97783 | 3502 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); |
b08c1d97 LC |
3503 | __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx); |
3504 | ||
3505 | ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx); | |
3506 | if (ret) { | |
3507 | IWL_ERR(mvm, "failed to add new_ctx during channel switch\n"); | |
3508 | goto out_reassign; | |
3509 | } | |
3510 | ||
f0c97783 LC |
3511 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, |
3512 | true); | |
b08c1d97 LC |
3513 | if (ret) { |
3514 | IWL_ERR(mvm, | |
3515 | "failed to assign new_ctx during channel switch\n"); | |
3516 | goto out_remove; | |
3517 | } | |
3518 | ||
f697267f AN |
3519 | /* we don't support TDLS during DCM - can be caused by channel switch */ |
3520 | if (iwl_mvm_phy_ctx_count(mvm) > 1) | |
3521 | iwl_mvm_teardown_tdls_peers(mvm); | |
3522 | ||
b08c1d97 LC |
3523 | goto out; |
3524 | ||
3525 | out_remove: | |
3526 | __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx); | |
3527 | ||
3528 | out_reassign: | |
6fd1fb63 | 3529 | if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) { |
b08c1d97 LC |
3530 | IWL_ERR(mvm, "failed to add old_ctx back after failure.\n"); |
3531 | goto out_restart; | |
3532 | } | |
3533 | ||
6fd1fb63 LC |
3534 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, |
3535 | true)) { | |
b08c1d97 LC |
3536 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); |
3537 | goto out_restart; | |
3538 | } | |
3539 | ||
3540 | goto out; | |
3541 | ||
3542 | out_restart: | |
3543 | /* things keep failing, better restart the hw */ | |
3544 | iwl_mvm_nic_restart(mvm, false); | |
3545 | ||
3546 | out: | |
3547 | mutex_unlock(&mvm->mutex); | |
50cc9574 LC |
3548 | |
3549 | return ret; | |
3550 | } | |
3551 | ||
48a256e8 LC |
3552 | static int |
3553 | iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm, | |
3554 | struct ieee80211_vif_chanctx_switch *vifs) | |
3555 | { | |
3556 | int ret; | |
3557 | ||
3558 | mutex_lock(&mvm->mutex); | |
3559 | __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true); | |
3560 | ||
3561 | ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx, | |
3562 | true); | |
3563 | if (ret) { | |
3564 | IWL_ERR(mvm, | |
3565 | "failed to assign new_ctx during channel switch\n"); | |
3566 | goto out_reassign; | |
3567 | } | |
3568 | ||
3569 | goto out; | |
3570 | ||
3571 | out_reassign: | |
3572 | if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, | |
3573 | true)) { | |
3574 | IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n"); | |
3575 | goto out_restart; | |
3576 | } | |
3577 | ||
3578 | goto out; | |
3579 | ||
3580 | out_restart: | |
3581 | /* things keep failing, better restart the hw */ | |
3582 | iwl_mvm_nic_restart(mvm, false); | |
3583 | ||
3584 | out: | |
3585 | mutex_unlock(&mvm->mutex); | |
3586 | ||
3587 | return ret; | |
3588 | } | |
3589 | ||
50cc9574 LC |
3590 | static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw, |
3591 | struct ieee80211_vif_chanctx_switch *vifs, | |
3592 | int n_vifs, | |
3593 | enum ieee80211_chanctx_switch_mode mode) | |
3594 | { | |
3595 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3596 | int ret; | |
3597 | ||
3598 | /* we only support a single-vif right now */ | |
3599 | if (n_vifs > 1) | |
3600 | return -EOPNOTSUPP; | |
3601 | ||
3602 | switch (mode) { | |
3603 | case CHANCTX_SWMODE_SWAP_CONTEXTS: | |
3604 | ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs); | |
3605 | break; | |
3606 | case CHANCTX_SWMODE_REASSIGN_VIF: | |
48a256e8 | 3607 | ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs); |
50cc9574 LC |
3608 | break; |
3609 | default: | |
3610 | ret = -EOPNOTSUPP; | |
3611 | break; | |
3612 | } | |
3613 | ||
b08c1d97 LC |
3614 | return ret; |
3615 | } | |
3616 | ||
8ca151b5 JB |
3617 | static int iwl_mvm_set_tim(struct ieee80211_hw *hw, |
3618 | struct ieee80211_sta *sta, | |
3619 | bool set) | |
3620 | { | |
3621 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
9d8ce6af | 3622 | struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta); |
8ca151b5 JB |
3623 | |
3624 | if (!mvm_sta || !mvm_sta->vif) { | |
3625 | IWL_ERR(mvm, "Station is not associated to a vif\n"); | |
3626 | return -EINVAL; | |
3627 | } | |
3628 | ||
3629 | return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); | |
3630 | } | |
3631 | ||
507cadf2 DS |
3632 | #ifdef CONFIG_NL80211_TESTMODE |
3633 | static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { | |
3634 | [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, | |
3635 | [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, | |
f6c6ad42 | 3636 | [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, |
507cadf2 DS |
3637 | }; |
3638 | ||
3639 | static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, | |
3640 | struct ieee80211_vif *vif, | |
3641 | void *data, int len) | |
3642 | { | |
3643 | struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; | |
3644 | int err; | |
3645 | u32 noa_duration; | |
3646 | ||
3647 | err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); | |
3648 | if (err) | |
3649 | return err; | |
3650 | ||
3651 | if (!tb[IWL_MVM_TM_ATTR_CMD]) | |
3652 | return -EINVAL; | |
3653 | ||
3654 | switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { | |
3655 | case IWL_MVM_TM_CMD_SET_NOA: | |
3656 | if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || | |
3657 | !vif->bss_conf.enable_beacon || | |
3658 | !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) | |
3659 | return -EINVAL; | |
3660 | ||
3661 | noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); | |
3662 | if (noa_duration >= vif->bss_conf.beacon_int) | |
3663 | return -EINVAL; | |
3664 | ||
3665 | mvm->noa_duration = noa_duration; | |
3666 | mvm->noa_vif = vif; | |
3667 | ||
7754ae79 | 3668 | return iwl_mvm_update_quotas(mvm, false, NULL); |
f6c6ad42 JB |
3669 | case IWL_MVM_TM_CMD_SET_BEACON_FILTER: |
3670 | /* must be associated client vif - ignore authorized */ | |
3671 | if (!vif || vif->type != NL80211_IFTYPE_STATION || | |
3672 | !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || | |
3673 | !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) | |
3674 | return -EINVAL; | |
3675 | ||
3676 | if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) | |
a1022927 EG |
3677 | return iwl_mvm_enable_beacon_filter(mvm, vif, 0); |
3678 | return iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
507cadf2 DS |
3679 | } |
3680 | ||
3681 | return -EOPNOTSUPP; | |
3682 | } | |
3683 | ||
3684 | static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, | |
3685 | struct ieee80211_vif *vif, | |
3686 | void *data, int len) | |
3687 | { | |
3688 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3689 | int err; | |
3690 | ||
3691 | mutex_lock(&mvm->mutex); | |
3692 | err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); | |
3693 | mutex_unlock(&mvm->mutex); | |
3694 | ||
3695 | return err; | |
3696 | } | |
3697 | #endif | |
3698 | ||
622e3f9b LC |
3699 | static void iwl_mvm_channel_switch(struct ieee80211_hw *hw, |
3700 | struct ieee80211_vif *vif, | |
3701 | struct ieee80211_channel_switch *chsw) | |
3702 | { | |
3703 | /* By implementing this operation, we prevent mac80211 from | |
3704 | * starting its own channel switch timer, so that we can call | |
3705 | * ieee80211_chswitch_done() ourselves at the right time | |
3706 | * (which is when the absence time event starts). | |
3707 | */ | |
3708 | ||
3709 | IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw), | |
3710 | "dummy channel switch op\n"); | |
3711 | } | |
3712 | ||
f028905c LC |
3713 | static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, |
3714 | struct ieee80211_vif *vif, | |
3715 | struct ieee80211_channel_switch *chsw) | |
bd3398e2 AO |
3716 | { |
3717 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
664322fa | 3718 | struct ieee80211_vif *csa_vif; |
f6c34820 | 3719 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
dc88b4ba | 3720 | u32 apply_time; |
f028905c | 3721 | int ret; |
bd3398e2 AO |
3722 | |
3723 | mutex_lock(&mvm->mutex); | |
664322fa | 3724 | |
81d62d5a JB |
3725 | mvmvif->csa_failed = false; |
3726 | ||
6b20d774 | 3727 | IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n", |
f028905c | 3728 | chsw->chandef.center_freq1); |
6b20d774 | 3729 | |
21023b1e | 3730 | iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH); |
f35d9c55 | 3731 | |
6b20d774 LC |
3732 | switch (vif->type) { |
3733 | case NL80211_IFTYPE_AP: | |
3734 | csa_vif = | |
3735 | rcu_dereference_protected(mvm->csa_vif, | |
3736 | lockdep_is_held(&mvm->mutex)); | |
3737 | if (WARN_ONCE(csa_vif && csa_vif->csa_active, | |
3738 | "Another CSA is already in progress")) { | |
3739 | ret = -EBUSY; | |
3740 | goto out_unlock; | |
3741 | } | |
3742 | ||
3743 | rcu_assign_pointer(mvm->csa_vif, vif); | |
7ef0aab6 | 3744 | |
7ef0aab6 AO |
3745 | if (WARN_ONCE(mvmvif->csa_countdown, |
3746 | "Previous CSA countdown didn't complete")) { | |
3747 | ret = -EBUSY; | |
3748 | goto out_unlock; | |
3749 | } | |
3750 | ||
6b20d774 | 3751 | break; |
dc88b4ba | 3752 | case NL80211_IFTYPE_STATION: |
4500e133 LC |
3753 | /* Schedule the time event to a bit before beacon 1, |
3754 | * to make sure we're in the new channel when the | |
3755 | * GO/AP arrives. | |
3756 | */ | |
3757 | apply_time = chsw->device_timestamp + | |
3758 | ((vif->bss_conf.beacon_int * (chsw->count - 1) - | |
3759 | IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024); | |
dc88b4ba LC |
3760 | |
3761 | if (chsw->block_tx) | |
3762 | iwl_mvm_csa_client_absent(mvm, vif); | |
3763 | ||
4500e133 | 3764 | iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int, |
dc88b4ba | 3765 | apply_time); |
c6e0a3e0 LC |
3766 | if (mvmvif->bf_data.bf_enabled) { |
3767 | ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); | |
3768 | if (ret) | |
3769 | goto out_unlock; | |
3770 | } | |
3771 | ||
dc88b4ba | 3772 | break; |
6b20d774 LC |
3773 | default: |
3774 | break; | |
3775 | } | |
bd3398e2 | 3776 | |
f6c34820 LC |
3777 | mvmvif->ps_disabled = true; |
3778 | ||
3779 | ret = iwl_mvm_power_update_ps(mvm); | |
3780 | if (ret) | |
3781 | goto out_unlock; | |
f028905c | 3782 | |
e198f5e7 AN |
3783 | /* we won't be on this channel any longer */ |
3784 | iwl_mvm_teardown_tdls_peers(mvm); | |
3785 | ||
bd3398e2 AO |
3786 | out_unlock: |
3787 | mutex_unlock(&mvm->mutex); | |
f028905c LC |
3788 | |
3789 | return ret; | |
bd3398e2 AO |
3790 | } |
3791 | ||
f6c34820 LC |
3792 | static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw, |
3793 | struct ieee80211_vif *vif) | |
3794 | { | |
3795 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3796 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3797 | int ret; | |
3798 | ||
3799 | mutex_lock(&mvm->mutex); | |
3800 | ||
81d62d5a JB |
3801 | if (mvmvif->csa_failed) { |
3802 | mvmvif->csa_failed = false; | |
3803 | ret = -EIO; | |
3804 | goto out_unlock; | |
3805 | } | |
3806 | ||
a57c688d LC |
3807 | if (vif->type == NL80211_IFTYPE_STATION) { |
3808 | struct iwl_mvm_sta *mvmsta; | |
3809 | ||
3810 | mvmsta = iwl_mvm_sta_from_staid_protected(mvm, | |
3811 | mvmvif->ap_sta_id); | |
3812 | ||
3813 | if (WARN_ON(!mvmsta)) { | |
3814 | ret = -EIO; | |
3815 | goto out_unlock; | |
3816 | } | |
3817 | ||
3818 | iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false); | |
3819 | ||
3820 | iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); | |
c6e0a3e0 LC |
3821 | |
3822 | ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); | |
3823 | if (ret) | |
3824 | goto out_unlock; | |
686e7fe1 LC |
3825 | |
3826 | iwl_mvm_stop_session_protection(mvm, vif); | |
a57c688d LC |
3827 | } |
3828 | ||
f6c34820 LC |
3829 | mvmvif->ps_disabled = false; |
3830 | ||
3831 | ret = iwl_mvm_power_update_ps(mvm); | |
3832 | ||
a57c688d | 3833 | out_unlock: |
f6c34820 LC |
3834 | mutex_unlock(&mvm->mutex); |
3835 | ||
3836 | return ret; | |
3837 | } | |
3838 | ||
c5b0e7c0 EG |
3839 | static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, |
3840 | struct ieee80211_vif *vif, u32 queues, bool drop) | |
3841 | { | |
3842 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3843 | struct iwl_mvm_vif *mvmvif; | |
3844 | struct iwl_mvm_sta *mvmsta; | |
a0f6bf2a AN |
3845 | struct ieee80211_sta *sta; |
3846 | int i; | |
3847 | u32 msk = 0; | |
c5b0e7c0 EG |
3848 | |
3849 | if (!vif || vif->type != NL80211_IFTYPE_STATION) | |
3850 | return; | |
3851 | ||
3852 | mutex_lock(&mvm->mutex); | |
3853 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
c5b0e7c0 | 3854 | |
a0f6bf2a AN |
3855 | /* flush the AP-station and all TDLS peers */ |
3856 | for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { | |
3857 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], | |
3858 | lockdep_is_held(&mvm->mutex)); | |
3859 | if (IS_ERR_OR_NULL(sta)) | |
3860 | continue; | |
3861 | ||
3862 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3863 | if (mvmsta->vif != vif) | |
3864 | continue; | |
3865 | ||
3866 | /* make sure only TDLS peers or the AP are flushed */ | |
3867 | WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls); | |
3868 | ||
3869 | msk |= mvmsta->tfd_queue_msk; | |
480acbce | 3870 | } |
c5b0e7c0 | 3871 | |
6d440b25 EG |
3872 | if (drop) { |
3873 | if (iwl_mvm_flush_tx_path(mvm, msk, true)) | |
3874 | IWL_ERR(mvm, "flush request fail\n"); | |
3875 | mutex_unlock(&mvm->mutex); | |
3876 | } else { | |
3877 | mutex_unlock(&mvm->mutex); | |
4e6c48e0 | 3878 | |
6d440b25 EG |
3879 | /* this can take a while, and we may need/want other operations |
3880 | * to succeed while doing this, so do it without the mutex held | |
3881 | */ | |
3882 | iwl_trans_wait_tx_queue_empty(mvm->trans, msk); | |
3883 | } | |
c5b0e7c0 EG |
3884 | } |
3885 | ||
91a8bcde JB |
3886 | static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx, |
3887 | struct survey_info *survey) | |
3888 | { | |
3889 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3890 | int ret; | |
3891 | ||
3892 | memset(survey, 0, sizeof(*survey)); | |
3893 | ||
3894 | /* only support global statistics right now */ | |
3895 | if (idx != 0) | |
3896 | return -ENOENT; | |
3897 | ||
3898 | if (!(mvm->fw->ucode_capa.capa[0] & | |
3899 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
3900 | return -ENOENT; | |
3901 | ||
3902 | mutex_lock(&mvm->mutex); | |
3903 | ||
3904 | if (mvm->ucode_loaded) { | |
33cef925 | 3905 | ret = iwl_mvm_request_statistics(mvm, false); |
91a8bcde JB |
3906 | if (ret) |
3907 | goto out; | |
3908 | } | |
3909 | ||
3910 | survey->filled = SURVEY_INFO_TIME | | |
3911 | SURVEY_INFO_TIME_RX | | |
3912 | SURVEY_INFO_TIME_TX | | |
3913 | SURVEY_INFO_TIME_SCAN; | |
3914 | survey->time = mvm->accu_radio_stats.on_time_rf + | |
3915 | mvm->radio_stats.on_time_rf; | |
3916 | do_div(survey->time, USEC_PER_MSEC); | |
3917 | ||
3918 | survey->time_rx = mvm->accu_radio_stats.rx_time + | |
3919 | mvm->radio_stats.rx_time; | |
3920 | do_div(survey->time_rx, USEC_PER_MSEC); | |
3921 | ||
3922 | survey->time_tx = mvm->accu_radio_stats.tx_time + | |
3923 | mvm->radio_stats.tx_time; | |
3924 | do_div(survey->time_tx, USEC_PER_MSEC); | |
3925 | ||
3926 | survey->time_scan = mvm->accu_radio_stats.on_time_scan + | |
3927 | mvm->radio_stats.on_time_scan; | |
3928 | do_div(survey->time_scan, USEC_PER_MSEC); | |
3929 | ||
10a7c028 | 3930 | ret = 0; |
91a8bcde JB |
3931 | out: |
3932 | mutex_unlock(&mvm->mutex); | |
3933 | return ret; | |
3934 | } | |
3935 | ||
33cef925 JB |
3936 | static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw, |
3937 | struct ieee80211_vif *vif, | |
3938 | struct ieee80211_sta *sta, | |
3939 | struct station_info *sinfo) | |
3940 | { | |
3941 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
3942 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3943 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
3944 | ||
3945 | if (!(mvm->fw->ucode_capa.capa[0] & | |
3946 | IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS)) | |
3947 | return; | |
3948 | ||
3949 | /* if beacon filtering isn't on mac80211 does it anyway */ | |
3950 | if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER)) | |
3951 | return; | |
3952 | ||
3953 | if (!vif->bss_conf.assoc) | |
3954 | return; | |
3955 | ||
3956 | mutex_lock(&mvm->mutex); | |
3957 | ||
3958 | if (mvmvif->ap_sta_id != mvmsta->sta_id) | |
3959 | goto unlock; | |
3960 | ||
3961 | if (iwl_mvm_request_statistics(mvm, false)) | |
3962 | goto unlock; | |
3963 | ||
3964 | sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons + | |
3965 | mvmvif->beacon_stats.accu_num_beacons; | |
3966 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX); | |
3967 | if (mvmvif->beacon_stats.avg_signal) { | |
3968 | /* firmware only reports a value after RXing a few beacons */ | |
3969 | sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal; | |
3970 | sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG); | |
3971 | } | |
3972 | unlock: | |
3973 | mutex_unlock(&mvm->mutex); | |
3974 | } | |
3975 | ||
4203263d EG |
3976 | static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm, |
3977 | struct ieee80211_vif *vif, | |
3978 | const struct ieee80211_event *event) | |
d42f5350 | 3979 | { |
5d4f929e | 3980 | #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \ |
d42f5350 EG |
3981 | do { \ |
3982 | if ((_cnt) && --(_cnt)) \ | |
3983 | break; \ | |
5d4f929e | 3984 | iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\ |
d42f5350 EG |
3985 | } while (0) |
3986 | ||
d42f5350 EG |
3987 | struct iwl_fw_dbg_trigger_tlv *trig; |
3988 | struct iwl_fw_dbg_trigger_mlme *trig_mlme; | |
d42f5350 EG |
3989 | |
3990 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) | |
3991 | return; | |
3992 | ||
d42f5350 EG |
3993 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); |
3994 | trig_mlme = (void *)trig->data; | |
3995 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
3996 | return; | |
3997 | ||
d42f5350 EG |
3998 | if (event->u.mlme.data == ASSOC_EVENT) { |
3999 | if (event->u.mlme.status == MLME_DENIED) | |
4000 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4001 | trig_mlme->stop_assoc_denied, | |
4002 | "DENIED ASSOC: reason %d", | |
4003 | event->u.mlme.reason); | |
4004 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4005 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4006 | trig_mlme->stop_assoc_timeout, | |
4007 | "ASSOC TIMEOUT"); | |
4008 | } else if (event->u.mlme.data == AUTH_EVENT) { | |
4009 | if (event->u.mlme.status == MLME_DENIED) | |
4010 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4011 | trig_mlme->stop_auth_denied, | |
4012 | "DENIED AUTH: reason %d", | |
4013 | event->u.mlme.reason); | |
4014 | else if (event->u.mlme.status == MLME_TIMEOUT) | |
4015 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4016 | trig_mlme->stop_auth_timeout, | |
4017 | "AUTH TIMEOUT"); | |
4018 | } else if (event->u.mlme.data == DEAUTH_RX_EVENT) { | |
4019 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4020 | trig_mlme->stop_rx_deauth, | |
4021 | "DEAUTH RX %d", event->u.mlme.reason); | |
4022 | } else if (event->u.mlme.data == DEAUTH_TX_EVENT) { | |
4023 | CHECK_MLME_TRIGGER(mvm, trig, buf, | |
4024 | trig_mlme->stop_tx_deauth, | |
4025 | "DEAUTH TX %d", event->u.mlme.reason); | |
4026 | } | |
4027 | #undef CHECK_MLME_TRIGGER | |
4028 | } | |
4029 | ||
4203263d EG |
4030 | static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm, |
4031 | struct ieee80211_vif *vif, | |
4032 | const struct ieee80211_event *event) | |
4033 | { | |
4034 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4035 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4036 | ||
4037 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4038 | return; | |
4039 | ||
4040 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4041 | ba_trig = (void *)trig->data; | |
4042 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4043 | return; | |
4044 | ||
4045 | if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid))) | |
4046 | return; | |
4047 | ||
4048 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4049 | "BAR received from %pM, tid %d, ssn %d", | |
4050 | event->u.ba.sta->addr, event->u.ba.tid, | |
4051 | event->u.ba.ssn); | |
4052 | } | |
4053 | ||
4054 | static void | |
4055 | iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm, | |
4056 | struct ieee80211_vif *vif, | |
4057 | const struct ieee80211_event *event) | |
4058 | { | |
4059 | struct iwl_fw_dbg_trigger_tlv *trig; | |
4060 | struct iwl_fw_dbg_trigger_ba *ba_trig; | |
4061 | ||
4062 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA)) | |
4063 | return; | |
4064 | ||
4065 | trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA); | |
4066 | ba_trig = (void *)trig->data; | |
4067 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) | |
4068 | return; | |
4069 | ||
4070 | if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid))) | |
4071 | return; | |
4072 | ||
4073 | iwl_mvm_fw_dbg_collect_trig(mvm, trig, | |
4074 | "Frame from %pM timed out, tid %d", | |
4075 | event->u.ba.sta->addr, event->u.ba.tid); | |
4076 | } | |
4077 | ||
4078 | static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw, | |
4079 | struct ieee80211_vif *vif, | |
4080 | const struct ieee80211_event *event) | |
4081 | { | |
4082 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
4083 | ||
4084 | switch (event->type) { | |
4085 | case MLME_EVENT: | |
4086 | iwl_mvm_event_mlme_callback(mvm, vif, event); | |
4087 | break; | |
4088 | case BAR_RX_EVENT: | |
4089 | iwl_mvm_event_bar_rx_callback(mvm, vif, event); | |
4090 | break; | |
4091 | case BA_FRAME_TIMEOUT: | |
4092 | iwl_mvm_event_frame_timeout_callback(mvm, vif, event); | |
4093 | break; | |
4094 | default: | |
4095 | break; | |
4096 | } | |
4097 | } | |
4098 | ||
e5209263 | 4099 | const struct ieee80211_ops iwl_mvm_hw_ops = { |
8ca151b5 JB |
4100 | .tx = iwl_mvm_mac_tx, |
4101 | .ampdu_action = iwl_mvm_mac_ampdu_action, | |
4102 | .start = iwl_mvm_mac_start, | |
cf2c92d8 | 4103 | .reconfig_complete = iwl_mvm_mac_reconfig_complete, |
8ca151b5 JB |
4104 | .stop = iwl_mvm_mac_stop, |
4105 | .add_interface = iwl_mvm_mac_add_interface, | |
4106 | .remove_interface = iwl_mvm_mac_remove_interface, | |
4107 | .config = iwl_mvm_mac_config, | |
e59647ea | 4108 | .prepare_multicast = iwl_mvm_prepare_multicast, |
8ca151b5 JB |
4109 | .configure_filter = iwl_mvm_configure_filter, |
4110 | .bss_info_changed = iwl_mvm_bss_info_changed, | |
4111 | .hw_scan = iwl_mvm_mac_hw_scan, | |
4112 | .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, | |
1ddbbb0c | 4113 | .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, |
8ca151b5 JB |
4114 | .sta_state = iwl_mvm_mac_sta_state, |
4115 | .sta_notify = iwl_mvm_mac_sta_notify, | |
4116 | .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, | |
3e56eadf | 4117 | .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, |
8ca151b5 | 4118 | .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, |
1f3b0ff8 | 4119 | .sta_rc_update = iwl_mvm_sta_rc_update, |
8ca151b5 JB |
4120 | .conf_tx = iwl_mvm_mac_conf_tx, |
4121 | .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, | |
07ecd897 | 4122 | .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover, |
c5b0e7c0 | 4123 | .flush = iwl_mvm_mac_flush, |
35a000b7 DS |
4124 | .sched_scan_start = iwl_mvm_mac_sched_scan_start, |
4125 | .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, | |
8ca151b5 JB |
4126 | .set_key = iwl_mvm_mac_set_key, |
4127 | .update_tkip_key = iwl_mvm_mac_update_tkip_key, | |
4128 | .remain_on_channel = iwl_mvm_roc, | |
4129 | .cancel_remain_on_channel = iwl_mvm_cancel_roc, | |
8ca151b5 JB |
4130 | .add_chanctx = iwl_mvm_add_chanctx, |
4131 | .remove_chanctx = iwl_mvm_remove_chanctx, | |
4132 | .change_chanctx = iwl_mvm_change_chanctx, | |
4133 | .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, | |
4134 | .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, | |
b08c1d97 | 4135 | .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx, |
8ca151b5 | 4136 | |
5023d966 JB |
4137 | .start_ap = iwl_mvm_start_ap_ibss, |
4138 | .stop_ap = iwl_mvm_stop_ap_ibss, | |
4139 | .join_ibss = iwl_mvm_start_ap_ibss, | |
4140 | .leave_ibss = iwl_mvm_stop_ap_ibss, | |
8ca151b5 JB |
4141 | |
4142 | .set_tim = iwl_mvm_set_tim, | |
4143 | ||
622e3f9b | 4144 | .channel_switch = iwl_mvm_channel_switch, |
f028905c | 4145 | .pre_channel_switch = iwl_mvm_pre_channel_switch, |
f6c34820 | 4146 | .post_channel_switch = iwl_mvm_post_channel_switch, |
bd3398e2 | 4147 | |
1d3c3f63 AN |
4148 | .tdls_channel_switch = iwl_mvm_tdls_channel_switch, |
4149 | .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch, | |
4150 | .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch, | |
4151 | ||
d42f5350 EG |
4152 | .event_callback = iwl_mvm_mac_event_callback, |
4153 | ||
507cadf2 DS |
4154 | CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) |
4155 | ||
8ca151b5 JB |
4156 | #ifdef CONFIG_PM_SLEEP |
4157 | /* look at d3.c */ | |
4158 | .suspend = iwl_mvm_suspend, | |
4159 | .resume = iwl_mvm_resume, | |
4160 | .set_wakeup = iwl_mvm_set_wakeup, | |
4161 | .set_rekey_data = iwl_mvm_set_rekey_data, | |
4162 | #if IS_ENABLED(CONFIG_IPV6) | |
4163 | .ipv6_addr_change = iwl_mvm_ipv6_addr_change, | |
4164 | #endif | |
4165 | .set_default_unicast_key = iwl_mvm_set_default_unicast_key, | |
4166 | #endif | |
91a8bcde | 4167 | .get_survey = iwl_mvm_mac_get_survey, |
33cef925 | 4168 | .sta_statistics = iwl_mvm_mac_sta_statistics, |
8ca151b5 | 4169 | }; |