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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 | * | |
8 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 25 | * in the file called COPYING. |
8ca151b5 JB |
26 | * |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
33 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
34 | * All rights reserved. | |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in | |
44 | * the documentation and/or other materials provided with the | |
45 | * distribution. | |
46 | * * Neither the name Intel Corporation nor the names of its | |
47 | * contributors may be used to endorse or promote products derived | |
48 | * from this software without specific prior written permission. | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | #include <net/mac80211.h> | |
64 | ||
65 | #include "mvm.h" | |
66 | #include "sta.h" | |
9ee718aa | 67 | #include "rs.h" |
8ca151b5 | 68 | |
5a258aae MS |
69 | static void iwl_mvm_add_sta_cmd_v6_to_v5(struct iwl_mvm_add_sta_cmd_v6 *cmd_v6, |
70 | struct iwl_mvm_add_sta_cmd_v5 *cmd_v5) | |
71 | { | |
72 | memset(cmd_v5, 0, sizeof(*cmd_v5)); | |
73 | ||
74 | cmd_v5->add_modify = cmd_v6->add_modify; | |
75 | cmd_v5->tid_disable_tx = cmd_v6->tid_disable_tx; | |
76 | cmd_v5->mac_id_n_color = cmd_v6->mac_id_n_color; | |
77 | memcpy(cmd_v5->addr, cmd_v6->addr, ETH_ALEN); | |
78 | cmd_v5->sta_id = cmd_v6->sta_id; | |
79 | cmd_v5->modify_mask = cmd_v6->modify_mask; | |
80 | cmd_v5->station_flags = cmd_v6->station_flags; | |
81 | cmd_v5->station_flags_msk = cmd_v6->station_flags_msk; | |
82 | cmd_v5->add_immediate_ba_tid = cmd_v6->add_immediate_ba_tid; | |
83 | cmd_v5->remove_immediate_ba_tid = cmd_v6->remove_immediate_ba_tid; | |
84 | cmd_v5->add_immediate_ba_ssn = cmd_v6->add_immediate_ba_ssn; | |
85 | cmd_v5->sleep_tx_count = cmd_v6->sleep_tx_count; | |
86 | cmd_v5->sleep_state_flags = cmd_v6->sleep_state_flags; | |
87 | cmd_v5->assoc_id = cmd_v6->assoc_id; | |
88 | cmd_v5->beamform_flags = cmd_v6->beamform_flags; | |
89 | cmd_v5->tfd_queue_msk = cmd_v6->tfd_queue_msk; | |
90 | } | |
91 | ||
92 | static void | |
93 | iwl_mvm_add_sta_key_to_add_sta_cmd_v5(struct iwl_mvm_add_sta_key_cmd *key_cmd, | |
94 | struct iwl_mvm_add_sta_cmd_v5 *sta_cmd, | |
95 | u32 mac_id_n_color) | |
96 | { | |
97 | memset(sta_cmd, 0, sizeof(*sta_cmd)); | |
98 | ||
99 | sta_cmd->sta_id = key_cmd->sta_id; | |
100 | sta_cmd->add_modify = STA_MODE_MODIFY; | |
101 | sta_cmd->modify_mask = STA_MODIFY_KEY; | |
102 | sta_cmd->mac_id_n_color = cpu_to_le32(mac_id_n_color); | |
103 | ||
104 | sta_cmd->key.key_offset = key_cmd->key_offset; | |
105 | sta_cmd->key.key_flags = key_cmd->key_flags; | |
106 | memcpy(sta_cmd->key.key, key_cmd->key, sizeof(sta_cmd->key.key)); | |
107 | sta_cmd->key.tkip_rx_tsc_byte2 = key_cmd->tkip_rx_tsc_byte2; | |
108 | memcpy(sta_cmd->key.tkip_rx_ttak, key_cmd->tkip_rx_ttak, | |
109 | sizeof(sta_cmd->key.tkip_rx_ttak)); | |
110 | } | |
111 | ||
112 | static int iwl_mvm_send_add_sta_cmd_status(struct iwl_mvm *mvm, | |
113 | struct iwl_mvm_add_sta_cmd_v6 *cmd, | |
114 | int *status) | |
115 | { | |
116 | struct iwl_mvm_add_sta_cmd_v5 cmd_v5; | |
117 | ||
118 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD) | |
119 | return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(*cmd), | |
120 | cmd, status); | |
121 | ||
122 | iwl_mvm_add_sta_cmd_v6_to_v5(cmd, &cmd_v5); | |
123 | ||
124 | return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd_v5), | |
125 | &cmd_v5, status); | |
126 | } | |
127 | ||
128 | static int iwl_mvm_send_add_sta_cmd(struct iwl_mvm *mvm, u32 flags, | |
129 | struct iwl_mvm_add_sta_cmd_v6 *cmd) | |
130 | { | |
131 | struct iwl_mvm_add_sta_cmd_v5 cmd_v5; | |
132 | ||
133 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD) | |
134 | return iwl_mvm_send_cmd_pdu(mvm, ADD_STA, flags, | |
135 | sizeof(*cmd), cmd); | |
136 | ||
137 | iwl_mvm_add_sta_cmd_v6_to_v5(cmd, &cmd_v5); | |
138 | ||
139 | return iwl_mvm_send_cmd_pdu(mvm, ADD_STA, flags, sizeof(cmd_v5), | |
140 | &cmd_v5); | |
141 | } | |
142 | ||
143 | static int | |
144 | iwl_mvm_send_add_sta_key_cmd_status(struct iwl_mvm *mvm, | |
145 | struct iwl_mvm_add_sta_key_cmd *cmd, | |
146 | u32 mac_id_n_color, | |
147 | int *status) | |
148 | { | |
149 | struct iwl_mvm_add_sta_cmd_v5 sta_cmd; | |
150 | ||
151 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD) | |
152 | return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, | |
153 | sizeof(*cmd), cmd, status); | |
154 | ||
155 | iwl_mvm_add_sta_key_to_add_sta_cmd_v5(cmd, &sta_cmd, mac_id_n_color); | |
156 | ||
157 | return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(sta_cmd), | |
158 | &sta_cmd, status); | |
159 | } | |
160 | ||
161 | static int iwl_mvm_send_add_sta_key_cmd(struct iwl_mvm *mvm, | |
162 | u32 flags, | |
163 | struct iwl_mvm_add_sta_key_cmd *cmd, | |
164 | u32 mac_id_n_color) | |
165 | { | |
166 | struct iwl_mvm_add_sta_cmd_v5 sta_cmd; | |
167 | ||
168 | if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD) | |
169 | return iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, flags, | |
170 | sizeof(*cmd), cmd); | |
171 | ||
172 | iwl_mvm_add_sta_key_to_add_sta_cmd_v5(cmd, &sta_cmd, mac_id_n_color); | |
173 | ||
174 | return iwl_mvm_send_cmd_pdu(mvm, ADD_STA, flags, sizeof(sta_cmd), | |
175 | &sta_cmd); | |
176 | } | |
177 | ||
8ca151b5 JB |
178 | static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm) |
179 | { | |
180 | int sta_id; | |
181 | ||
182 | WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); | |
183 | ||
184 | lockdep_assert_held(&mvm->mutex); | |
185 | ||
186 | /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ | |
187 | for (sta_id = 0; sta_id < IWL_MVM_STATION_COUNT; sta_id++) | |
188 | if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
189 | lockdep_is_held(&mvm->mutex))) | |
190 | return sta_id; | |
191 | return IWL_MVM_STATION_COUNT; | |
192 | } | |
193 | ||
7a453973 JB |
194 | /* send station add/update command to firmware */ |
195 | int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, | |
196 | bool update) | |
8ca151b5 JB |
197 | { |
198 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
5a258aae | 199 | struct iwl_mvm_add_sta_cmd_v6 add_sta_cmd; |
8ca151b5 JB |
200 | int ret; |
201 | u32 status; | |
202 | u32 agg_size = 0, mpdu_dens = 0; | |
203 | ||
204 | memset(&add_sta_cmd, 0, sizeof(add_sta_cmd)); | |
205 | ||
206 | add_sta_cmd.sta_id = mvm_sta->sta_id; | |
207 | add_sta_cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); | |
7a453973 JB |
208 | if (!update) { |
209 | add_sta_cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); | |
210 | memcpy(&add_sta_cmd.addr, sta->addr, ETH_ALEN); | |
211 | } | |
212 | add_sta_cmd.add_modify = update ? 1 : 0; | |
8ca151b5 | 213 | |
5bc5aaad JB |
214 | add_sta_cmd.station_flags_msk |= cpu_to_le32(STA_FLG_FAT_EN_MSK | |
215 | STA_FLG_MIMO_EN_MSK); | |
216 | ||
217 | switch (sta->bandwidth) { | |
218 | case IEEE80211_STA_RX_BW_160: | |
219 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_160MHZ); | |
220 | /* fall through */ | |
221 | case IEEE80211_STA_RX_BW_80: | |
222 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_80MHZ); | |
223 | /* fall through */ | |
224 | case IEEE80211_STA_RX_BW_40: | |
225 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_FAT_EN_40MHZ); | |
226 | /* fall through */ | |
227 | case IEEE80211_STA_RX_BW_20: | |
228 | if (sta->ht_cap.ht_supported) | |
229 | add_sta_cmd.station_flags |= | |
230 | cpu_to_le32(STA_FLG_FAT_EN_20MHZ); | |
231 | break; | |
232 | } | |
233 | ||
234 | switch (sta->rx_nss) { | |
235 | case 1: | |
236 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); | |
237 | break; | |
238 | case 2: | |
239 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO2); | |
240 | break; | |
241 | case 3 ... 8: | |
242 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_MIMO3); | |
243 | break; | |
244 | } | |
245 | ||
246 | switch (sta->smps_mode) { | |
247 | case IEEE80211_SMPS_AUTOMATIC: | |
248 | case IEEE80211_SMPS_NUM_MODES: | |
249 | WARN_ON(1); | |
250 | break; | |
251 | case IEEE80211_SMPS_STATIC: | |
252 | /* override NSS */ | |
253 | add_sta_cmd.station_flags &= ~cpu_to_le32(STA_FLG_MIMO_EN_MSK); | |
254 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_MIMO_EN_SISO); | |
255 | break; | |
256 | case IEEE80211_SMPS_DYNAMIC: | |
257 | add_sta_cmd.station_flags |= cpu_to_le32(STA_FLG_RTS_MIMO_PROT); | |
258 | break; | |
259 | case IEEE80211_SMPS_OFF: | |
260 | /* nothing */ | |
261 | break; | |
262 | } | |
8ca151b5 JB |
263 | |
264 | if (sta->ht_cap.ht_supported) { | |
265 | add_sta_cmd.station_flags_msk |= | |
266 | cpu_to_le32(STA_FLG_MAX_AGG_SIZE_MSK | | |
267 | STA_FLG_AGG_MPDU_DENS_MSK); | |
268 | ||
269 | mpdu_dens = sta->ht_cap.ampdu_density; | |
270 | } | |
271 | ||
272 | if (sta->vht_cap.vht_supported) { | |
273 | agg_size = sta->vht_cap.cap & | |
274 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK; | |
275 | agg_size >>= | |
276 | IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; | |
277 | } else if (sta->ht_cap.ht_supported) { | |
278 | agg_size = sta->ht_cap.ampdu_factor; | |
279 | } | |
280 | ||
281 | add_sta_cmd.station_flags |= | |
282 | cpu_to_le32(agg_size << STA_FLG_MAX_AGG_SIZE_SHIFT); | |
283 | add_sta_cmd.station_flags |= | |
284 | cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT); | |
285 | ||
286 | status = ADD_STA_SUCCESS; | |
5a258aae | 287 | ret = iwl_mvm_send_add_sta_cmd_status(mvm, &add_sta_cmd, &status); |
8ca151b5 JB |
288 | if (ret) |
289 | return ret; | |
290 | ||
291 | switch (status) { | |
292 | case ADD_STA_SUCCESS: | |
293 | IWL_DEBUG_ASSOC(mvm, "ADD_STA PASSED\n"); | |
294 | break; | |
295 | default: | |
296 | ret = -EIO; | |
297 | IWL_ERR(mvm, "ADD_STA failed\n"); | |
298 | break; | |
299 | } | |
300 | ||
301 | return ret; | |
302 | } | |
303 | ||
304 | int iwl_mvm_add_sta(struct iwl_mvm *mvm, | |
305 | struct ieee80211_vif *vif, | |
306 | struct ieee80211_sta *sta) | |
307 | { | |
308 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
309 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
310 | int i, ret, sta_id; | |
311 | ||
312 | lockdep_assert_held(&mvm->mutex); | |
313 | ||
314 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) | |
315 | sta_id = iwl_mvm_find_free_sta_id(mvm); | |
316 | else | |
317 | sta_id = mvm_sta->sta_id; | |
318 | ||
319 | if (WARN_ON_ONCE(sta_id == IWL_MVM_STATION_COUNT)) | |
320 | return -ENOSPC; | |
321 | ||
322 | spin_lock_init(&mvm_sta->lock); | |
323 | ||
324 | mvm_sta->sta_id = sta_id; | |
325 | mvm_sta->mac_id_n_color = FW_CMD_ID_AND_COLOR(mvmvif->id, | |
326 | mvmvif->color); | |
327 | mvm_sta->vif = vif; | |
328 | mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; | |
9ee718aa EL |
329 | mvm_sta->tx_protection = 0; |
330 | mvm_sta->tt_tx_protection = false; | |
8ca151b5 JB |
331 | |
332 | /* HW restart, don't assume the memory has been zeroed */ | |
e3d4bc8c | 333 | atomic_set(&mvm->pending_frames[sta_id], 0); |
8ca151b5 JB |
334 | mvm_sta->tid_disable_agg = 0; |
335 | mvm_sta->tfd_queue_msk = 0; | |
336 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
337 | if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE) | |
338 | mvm_sta->tfd_queue_msk |= BIT(vif->hw_queue[i]); | |
339 | ||
6d9d32b8 JB |
340 | /* for HW restart - reset everything but the sequence number */ |
341 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { | |
342 | u16 seq = mvm_sta->tid_data[i].seq_number; | |
343 | memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); | |
344 | mvm_sta->tid_data[i].seq_number = seq; | |
345 | } | |
8ca151b5 | 346 | |
7a453973 | 347 | ret = iwl_mvm_sta_send_to_fw(mvm, sta, false); |
8ca151b5 JB |
348 | if (ret) |
349 | return ret; | |
350 | ||
351 | /* The first station added is the AP, the others are TDLS STAs */ | |
352 | if (vif->type == NL80211_IFTYPE_STATION && | |
353 | mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) | |
354 | mvmvif->ap_sta_id = sta_id; | |
355 | ||
356 | rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], sta); | |
357 | ||
358 | return 0; | |
359 | } | |
360 | ||
7a453973 JB |
361 | int iwl_mvm_update_sta(struct iwl_mvm *mvm, |
362 | struct ieee80211_vif *vif, | |
363 | struct ieee80211_sta *sta) | |
364 | { | |
365 | return iwl_mvm_sta_send_to_fw(mvm, sta, true); | |
366 | } | |
367 | ||
8ca151b5 JB |
368 | int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, |
369 | bool drain) | |
370 | { | |
5a258aae | 371 | struct iwl_mvm_add_sta_cmd_v6 cmd = {}; |
8ca151b5 JB |
372 | int ret; |
373 | u32 status; | |
374 | ||
375 | lockdep_assert_held(&mvm->mutex); | |
376 | ||
377 | cmd.mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color); | |
378 | cmd.sta_id = mvmsta->sta_id; | |
379 | cmd.add_modify = STA_MODE_MODIFY; | |
380 | cmd.station_flags = drain ? cpu_to_le32(STA_FLG_DRAIN_FLOW) : 0; | |
381 | cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW); | |
382 | ||
383 | status = ADD_STA_SUCCESS; | |
5a258aae | 384 | ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status); |
8ca151b5 JB |
385 | if (ret) |
386 | return ret; | |
387 | ||
388 | switch (status) { | |
389 | case ADD_STA_SUCCESS: | |
390 | IWL_DEBUG_INFO(mvm, "Frames for staid %d will drained in fw\n", | |
391 | mvmsta->sta_id); | |
392 | break; | |
393 | default: | |
394 | ret = -EIO; | |
395 | IWL_ERR(mvm, "Couldn't drain frames for staid %d\n", | |
396 | mvmsta->sta_id); | |
397 | break; | |
398 | } | |
399 | ||
400 | return ret; | |
401 | } | |
402 | ||
403 | /* | |
404 | * Remove a station from the FW table. Before sending the command to remove | |
405 | * the station validate that the station is indeed known to the driver (sanity | |
406 | * only). | |
407 | */ | |
408 | static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) | |
409 | { | |
410 | struct ieee80211_sta *sta; | |
411 | struct iwl_mvm_rm_sta_cmd rm_sta_cmd = { | |
412 | .sta_id = sta_id, | |
413 | }; | |
414 | int ret; | |
415 | ||
416 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
417 | lockdep_is_held(&mvm->mutex)); | |
418 | ||
419 | /* Note: internal stations are marked as error values */ | |
420 | if (!sta) { | |
421 | IWL_ERR(mvm, "Invalid station id\n"); | |
422 | return -EINVAL; | |
423 | } | |
424 | ||
425 | ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, CMD_SYNC, | |
426 | sizeof(rm_sta_cmd), &rm_sta_cmd); | |
427 | if (ret) { | |
428 | IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); | |
429 | return ret; | |
430 | } | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | void iwl_mvm_sta_drained_wk(struct work_struct *wk) | |
436 | { | |
437 | struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, sta_drained_wk); | |
438 | u8 sta_id; | |
439 | ||
440 | /* | |
441 | * The mutex is needed because of the SYNC cmd, but not only: if the | |
442 | * work would run concurrently with iwl_mvm_rm_sta, it would run before | |
443 | * iwl_mvm_rm_sta sets the station as busy, and exit. Then | |
444 | * iwl_mvm_rm_sta would set the station as busy, and nobody will clean | |
445 | * that later. | |
446 | */ | |
447 | mutex_lock(&mvm->mutex); | |
448 | ||
449 | for_each_set_bit(sta_id, mvm->sta_drained, IWL_MVM_STATION_COUNT) { | |
450 | int ret; | |
451 | struct ieee80211_sta *sta = | |
452 | rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
453 | lockdep_is_held(&mvm->mutex)); | |
454 | ||
455 | /* This station is in use */ | |
456 | if (!IS_ERR(sta)) | |
457 | continue; | |
458 | ||
459 | if (PTR_ERR(sta) == -EINVAL) { | |
460 | IWL_ERR(mvm, "Drained sta %d, but it is internal?\n", | |
461 | sta_id); | |
462 | continue; | |
463 | } | |
464 | ||
465 | if (!sta) { | |
466 | IWL_ERR(mvm, "Drained sta %d, but it was NULL?\n", | |
467 | sta_id); | |
468 | continue; | |
469 | } | |
470 | ||
471 | WARN_ON(PTR_ERR(sta) != -EBUSY); | |
472 | /* This station was removed and we waited until it got drained, | |
473 | * we can now proceed and remove it. | |
474 | */ | |
475 | ret = iwl_mvm_rm_sta_common(mvm, sta_id); | |
476 | if (ret) { | |
477 | IWL_ERR(mvm, | |
478 | "Couldn't remove sta %d after it was drained\n", | |
479 | sta_id); | |
480 | continue; | |
481 | } | |
482 | rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], NULL); | |
483 | clear_bit(sta_id, mvm->sta_drained); | |
484 | } | |
485 | ||
486 | mutex_unlock(&mvm->mutex); | |
487 | } | |
488 | ||
489 | int iwl_mvm_rm_sta(struct iwl_mvm *mvm, | |
490 | struct ieee80211_vif *vif, | |
491 | struct ieee80211_sta *sta) | |
492 | { | |
493 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
494 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
495 | int ret; | |
496 | ||
497 | lockdep_assert_held(&mvm->mutex); | |
498 | ||
499 | if (vif->type == NL80211_IFTYPE_STATION && | |
500 | mvmvif->ap_sta_id == mvm_sta->sta_id) { | |
80d85655 EG |
501 | /* flush its queues here since we are freeing mvm_sta */ |
502 | ret = iwl_mvm_flush_tx_path(mvm, mvm_sta->tfd_queue_msk, true); | |
503 | ||
8ca151b5 JB |
504 | /* |
505 | * Put a non-NULL since the fw station isn't removed. | |
506 | * It will be removed after the MAC will be set as | |
507 | * unassoc. | |
508 | */ | |
509 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], | |
510 | ERR_PTR(-EINVAL)); | |
511 | ||
8ca151b5 JB |
512 | /* if we are associated - we can't remove the AP STA now */ |
513 | if (vif->bss_conf.assoc) | |
514 | return ret; | |
515 | ||
516 | /* unassoc - go ahead - remove the AP STA now */ | |
517 | mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; | |
518 | } | |
519 | ||
e3d4bc8c EG |
520 | /* |
521 | * Make sure that the tx response code sees the station as -EBUSY and | |
522 | * calls the drain worker. | |
523 | */ | |
524 | spin_lock_bh(&mvm_sta->lock); | |
8ca151b5 JB |
525 | /* |
526 | * There are frames pending on the AC queues for this station. | |
527 | * We need to wait until all the frames are drained... | |
528 | */ | |
e3d4bc8c | 529 | if (atomic_read(&mvm->pending_frames[mvm_sta->sta_id])) { |
8ca151b5 JB |
530 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], |
531 | ERR_PTR(-EBUSY)); | |
e3d4bc8c EG |
532 | spin_unlock_bh(&mvm_sta->lock); |
533 | ret = iwl_mvm_drain_sta(mvm, mvm_sta, true); | |
8ca151b5 | 534 | } else { |
e3d4bc8c | 535 | spin_unlock_bh(&mvm_sta->lock); |
8ca151b5 JB |
536 | ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); |
537 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); | |
538 | } | |
539 | ||
540 | return ret; | |
541 | } | |
542 | ||
543 | int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, | |
544 | struct ieee80211_vif *vif, | |
545 | u8 sta_id) | |
546 | { | |
547 | int ret = iwl_mvm_rm_sta_common(mvm, sta_id); | |
548 | ||
549 | lockdep_assert_held(&mvm->mutex); | |
550 | ||
551 | rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], NULL); | |
552 | return ret; | |
553 | } | |
554 | ||
555 | int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta, | |
556 | u32 qmask) | |
557 | { | |
558 | if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
559 | sta->sta_id = iwl_mvm_find_free_sta_id(mvm); | |
560 | if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_STATION_COUNT)) | |
561 | return -ENOSPC; | |
562 | } | |
563 | ||
564 | sta->tfd_queue_msk = qmask; | |
565 | ||
566 | /* put a non-NULL value so iterating over the stations won't stop */ | |
567 | rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], ERR_PTR(-EINVAL)); | |
568 | return 0; | |
569 | } | |
570 | ||
571 | void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) | |
572 | { | |
573 | rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], NULL); | |
574 | memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); | |
575 | sta->sta_id = IWL_MVM_STATION_COUNT; | |
576 | } | |
577 | ||
578 | static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, | |
579 | struct iwl_mvm_int_sta *sta, | |
580 | const u8 *addr, | |
581 | u16 mac_id, u16 color) | |
582 | { | |
5a258aae | 583 | struct iwl_mvm_add_sta_cmd_v6 cmd; |
8ca151b5 JB |
584 | int ret; |
585 | u32 status; | |
586 | ||
587 | lockdep_assert_held(&mvm->mutex); | |
588 | ||
5a258aae | 589 | memset(&cmd, 0, sizeof(struct iwl_mvm_add_sta_cmd_v6)); |
8ca151b5 JB |
590 | cmd.sta_id = sta->sta_id; |
591 | cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, | |
592 | color)); | |
593 | ||
594 | cmd.tfd_queue_msk = cpu_to_le32(sta->tfd_queue_msk); | |
595 | ||
596 | if (addr) | |
597 | memcpy(cmd.addr, addr, ETH_ALEN); | |
598 | ||
5a258aae | 599 | ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status); |
8ca151b5 JB |
600 | if (ret) |
601 | return ret; | |
602 | ||
603 | switch (status) { | |
604 | case ADD_STA_SUCCESS: | |
605 | IWL_DEBUG_INFO(mvm, "Internal station added.\n"); | |
606 | return 0; | |
607 | default: | |
608 | ret = -EIO; | |
609 | IWL_ERR(mvm, "Add internal station failed, status=0x%x\n", | |
610 | status); | |
611 | break; | |
612 | } | |
613 | return ret; | |
614 | } | |
615 | ||
616 | int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) | |
617 | { | |
618 | int ret; | |
619 | ||
620 | lockdep_assert_held(&mvm->mutex); | |
621 | ||
622 | /* Add the aux station, but without any queues */ | |
623 | ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, 0); | |
624 | if (ret) | |
625 | return ret; | |
626 | ||
627 | ret = iwl_mvm_add_int_sta_common(mvm, &mvm->aux_sta, NULL, | |
628 | MAC_INDEX_AUX, 0); | |
629 | ||
630 | if (ret) | |
631 | iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta); | |
632 | return ret; | |
633 | } | |
634 | ||
635 | /* | |
636 | * Send the add station command for the vif's broadcast station. | |
637 | * Assumes that the station was already allocated. | |
638 | * | |
639 | * @mvm: the mvm component | |
640 | * @vif: the interface to which the broadcast station is added | |
641 | * @bsta: the broadcast station to add. | |
642 | */ | |
643 | int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
644 | struct iwl_mvm_int_sta *bsta) | |
645 | { | |
646 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
5023d966 JB |
647 | static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
648 | static const u8 *baddr = _baddr; | |
8ca151b5 JB |
649 | |
650 | lockdep_assert_held(&mvm->mutex); | |
651 | ||
5023d966 JB |
652 | if (vif->type == NL80211_IFTYPE_ADHOC) |
653 | baddr = vif->bss_conf.bssid; | |
654 | ||
8ca151b5 JB |
655 | if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_STATION_COUNT)) |
656 | return -ENOSPC; | |
657 | ||
658 | return iwl_mvm_add_int_sta_common(mvm, bsta, baddr, | |
659 | mvmvif->id, mvmvif->color); | |
660 | } | |
661 | ||
662 | /* Send the FW a request to remove the station from it's internal data | |
663 | * structures, but DO NOT remove the entry from the local data structures. */ | |
664 | int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, | |
665 | struct iwl_mvm_int_sta *bsta) | |
666 | { | |
667 | int ret; | |
668 | ||
669 | lockdep_assert_held(&mvm->mutex); | |
670 | ||
671 | ret = iwl_mvm_rm_sta_common(mvm, bsta->sta_id); | |
672 | if (ret) | |
673 | IWL_WARN(mvm, "Failed sending remove station\n"); | |
674 | return ret; | |
675 | } | |
676 | ||
677 | /* Allocate a new station entry for the broadcast station to the given vif, | |
678 | * and send it to the FW. | |
679 | * Note that each P2P mac should have its own broadcast station. | |
680 | * | |
681 | * @mvm: the mvm component | |
682 | * @vif: the interface to which the broadcast station is added | |
683 | * @bsta: the broadcast station to add. */ | |
684 | int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
685 | struct iwl_mvm_int_sta *bsta) | |
686 | { | |
687 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
688 | static const u8 baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; | |
689 | u32 qmask; | |
690 | int ret; | |
691 | ||
692 | lockdep_assert_held(&mvm->mutex); | |
693 | ||
694 | qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); | |
695 | ret = iwl_mvm_allocate_int_sta(mvm, bsta, qmask); | |
696 | if (ret) | |
697 | return ret; | |
698 | ||
699 | ret = iwl_mvm_add_int_sta_common(mvm, bsta, baddr, | |
700 | mvmvif->id, mvmvif->color); | |
701 | ||
702 | if (ret) | |
703 | iwl_mvm_dealloc_int_sta(mvm, bsta); | |
704 | return ret; | |
705 | } | |
706 | ||
707 | /* | |
708 | * Send the FW a request to remove the station from it's internal data | |
709 | * structures, and in addition remove it from the local data structure. | |
710 | */ | |
711 | int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta) | |
712 | { | |
713 | int ret; | |
714 | ||
715 | lockdep_assert_held(&mvm->mutex); | |
716 | ||
717 | ret = iwl_mvm_rm_sta_common(mvm, bsta->sta_id); | |
718 | if (ret) | |
719 | return ret; | |
720 | ||
721 | iwl_mvm_dealloc_int_sta(mvm, bsta); | |
722 | return ret; | |
723 | } | |
724 | ||
113a0447 EG |
725 | #define IWL_MAX_RX_BA_SESSIONS 16 |
726 | ||
8ca151b5 JB |
727 | int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, |
728 | int tid, u16 ssn, bool start) | |
729 | { | |
730 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
5a258aae | 731 | struct iwl_mvm_add_sta_cmd_v6 cmd = {}; |
8ca151b5 JB |
732 | int ret; |
733 | u32 status; | |
734 | ||
735 | lockdep_assert_held(&mvm->mutex); | |
736 | ||
113a0447 EG |
737 | if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { |
738 | IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); | |
739 | return -ENOSPC; | |
740 | } | |
741 | ||
8ca151b5 JB |
742 | cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); |
743 | cmd.sta_id = mvm_sta->sta_id; | |
744 | cmd.add_modify = STA_MODE_MODIFY; | |
93a42667 EG |
745 | if (start) { |
746 | cmd.add_immediate_ba_tid = (u8) tid; | |
747 | cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); | |
748 | } else { | |
749 | cmd.remove_immediate_ba_tid = (u8) tid; | |
750 | } | |
8ca151b5 JB |
751 | cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : |
752 | STA_MODIFY_REMOVE_BA_TID; | |
753 | ||
754 | status = ADD_STA_SUCCESS; | |
5a258aae | 755 | ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status); |
8ca151b5 JB |
756 | if (ret) |
757 | return ret; | |
758 | ||
759 | switch (status) { | |
760 | case ADD_STA_SUCCESS: | |
761 | IWL_DEBUG_INFO(mvm, "RX BA Session %sed in fw\n", | |
762 | start ? "start" : "stopp"); | |
763 | break; | |
764 | case ADD_STA_IMMEDIATE_BA_FAILURE: | |
765 | IWL_WARN(mvm, "RX BA Session refused by fw\n"); | |
766 | ret = -ENOSPC; | |
767 | break; | |
768 | default: | |
769 | ret = -EIO; | |
770 | IWL_ERR(mvm, "RX BA Session failed %sing, status 0x%x\n", | |
771 | start ? "start" : "stopp", status); | |
772 | break; | |
773 | } | |
774 | ||
113a0447 EG |
775 | if (!ret) { |
776 | if (start) | |
777 | mvm->rx_ba_sessions++; | |
778 | else if (mvm->rx_ba_sessions > 0) | |
779 | /* check that restart flow didn't zero the counter */ | |
780 | mvm->rx_ba_sessions--; | |
781 | } | |
782 | ||
8ca151b5 JB |
783 | return ret; |
784 | } | |
785 | ||
786 | static int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, | |
787 | int tid, u8 queue, bool start) | |
788 | { | |
789 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
5a258aae | 790 | struct iwl_mvm_add_sta_cmd_v6 cmd = {}; |
8ca151b5 JB |
791 | int ret; |
792 | u32 status; | |
793 | ||
794 | lockdep_assert_held(&mvm->mutex); | |
795 | ||
796 | if (start) { | |
797 | mvm_sta->tfd_queue_msk |= BIT(queue); | |
798 | mvm_sta->tid_disable_agg &= ~BIT(tid); | |
799 | } else { | |
800 | mvm_sta->tfd_queue_msk &= ~BIT(queue); | |
801 | mvm_sta->tid_disable_agg |= BIT(tid); | |
802 | } | |
803 | ||
804 | cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); | |
805 | cmd.sta_id = mvm_sta->sta_id; | |
806 | cmd.add_modify = STA_MODE_MODIFY; | |
807 | cmd.modify_mask = STA_MODIFY_QUEUES | STA_MODIFY_TID_DISABLE_TX; | |
808 | cmd.tfd_queue_msk = cpu_to_le32(mvm_sta->tfd_queue_msk); | |
809 | cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg); | |
810 | ||
811 | status = ADD_STA_SUCCESS; | |
5a258aae | 812 | ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status); |
8ca151b5 JB |
813 | if (ret) |
814 | return ret; | |
815 | ||
816 | switch (status) { | |
817 | case ADD_STA_SUCCESS: | |
818 | break; | |
819 | default: | |
820 | ret = -EIO; | |
821 | IWL_ERR(mvm, "TX BA Session failed %sing, status 0x%x\n", | |
822 | start ? "start" : "stopp", status); | |
823 | break; | |
824 | } | |
825 | ||
826 | return ret; | |
827 | } | |
828 | ||
829 | static const u8 tid_to_ac[] = { | |
830 | IEEE80211_AC_BE, | |
831 | IEEE80211_AC_BK, | |
832 | IEEE80211_AC_BK, | |
833 | IEEE80211_AC_BE, | |
834 | IEEE80211_AC_VI, | |
835 | IEEE80211_AC_VI, | |
836 | IEEE80211_AC_VO, | |
837 | IEEE80211_AC_VO, | |
838 | }; | |
839 | ||
840 | int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
841 | struct ieee80211_sta *sta, u16 tid, u16 *ssn) | |
842 | { | |
843 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
844 | struct iwl_mvm_tid_data *tid_data; | |
845 | int txq_id; | |
846 | ||
847 | if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT)) | |
848 | return -EINVAL; | |
849 | ||
850 | if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) { | |
851 | IWL_ERR(mvm, "Start AGG when state is not IWL_AGG_OFF %d!\n", | |
852 | mvmsta->tid_data[tid].state); | |
853 | return -ENXIO; | |
854 | } | |
855 | ||
856 | lockdep_assert_held(&mvm->mutex); | |
857 | ||
19e737c9 EL |
858 | for (txq_id = mvm->first_agg_queue; |
859 | txq_id <= mvm->last_agg_queue; txq_id++) | |
8ca151b5 JB |
860 | if (mvm->queue_to_mac80211[txq_id] == |
861 | IWL_INVALID_MAC80211_QUEUE) | |
862 | break; | |
863 | ||
19e737c9 | 864 | if (txq_id > mvm->last_agg_queue) { |
8ca151b5 JB |
865 | IWL_ERR(mvm, "Failed to allocate agg queue\n"); |
866 | return -EIO; | |
867 | } | |
868 | ||
869 | /* the new tx queue is still connected to the same mac80211 queue */ | |
870 | mvm->queue_to_mac80211[txq_id] = vif->hw_queue[tid_to_ac[tid]]; | |
871 | ||
872 | spin_lock_bh(&mvmsta->lock); | |
873 | tid_data = &mvmsta->tid_data[tid]; | |
9a886586 | 874 | tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); |
8ca151b5 JB |
875 | tid_data->txq_id = txq_id; |
876 | *ssn = tid_data->ssn; | |
877 | ||
878 | IWL_DEBUG_TX_QUEUES(mvm, | |
879 | "Start AGG: sta %d tid %d queue %d - ssn = %d, next_recl = %d\n", | |
880 | mvmsta->sta_id, tid, txq_id, tid_data->ssn, | |
881 | tid_data->next_reclaimed); | |
882 | ||
883 | if (tid_data->ssn == tid_data->next_reclaimed) { | |
884 | tid_data->state = IWL_AGG_STARTING; | |
885 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
886 | } else { | |
887 | tid_data->state = IWL_EMPTYING_HW_QUEUE_ADDBA; | |
888 | } | |
889 | ||
890 | spin_unlock_bh(&mvmsta->lock); | |
891 | ||
892 | return 0; | |
893 | } | |
894 | ||
895 | int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
896 | struct ieee80211_sta *sta, u16 tid, u8 buf_size) | |
897 | { | |
898 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
899 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
900 | int queue, fifo, ret; | |
901 | u16 ssn; | |
902 | ||
903 | buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); | |
904 | ||
905 | spin_lock_bh(&mvmsta->lock); | |
906 | ssn = tid_data->ssn; | |
907 | queue = tid_data->txq_id; | |
908 | tid_data->state = IWL_AGG_ON; | |
909 | tid_data->ssn = 0xffff; | |
910 | spin_unlock_bh(&mvmsta->lock); | |
911 | ||
912 | fifo = iwl_mvm_ac_to_tx_fifo[tid_to_ac[tid]]; | |
913 | ||
914 | ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); | |
915 | if (ret) | |
916 | return -EIO; | |
917 | ||
918 | iwl_trans_txq_enable(mvm->trans, queue, fifo, mvmsta->sta_id, tid, | |
919 | buf_size, ssn); | |
920 | ||
921 | /* | |
922 | * Even though in theory the peer could have different | |
923 | * aggregation reorder buffer sizes for different sessions, | |
924 | * our ucode doesn't allow for that and has a global limit | |
925 | * for each station. Therefore, use the minimum of all the | |
926 | * aggregation sessions and our default value. | |
927 | */ | |
928 | mvmsta->max_agg_bufsize = | |
929 | min(mvmsta->max_agg_bufsize, buf_size); | |
930 | mvmsta->lq_sta.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; | |
931 | ||
9ee718aa EL |
932 | IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", |
933 | sta->addr, tid); | |
934 | ||
8ca151b5 JB |
935 | if (mvm->cfg->ht_params->use_rts_for_aggregation) { |
936 | /* | |
937 | * switch to RTS/CTS if it is the prefer protection | |
938 | * method for HT traffic | |
9ee718aa | 939 | * this function also sends the LQ command |
8ca151b5 | 940 | */ |
e126b5d9 | 941 | return iwl_mvm_tx_protection(mvm, mvmsta, true); |
8ca151b5 JB |
942 | /* |
943 | * TODO: remove the TLC_RTS flag when we tear down the last | |
944 | * AGG session (agg_tids_count in DVM) | |
945 | */ | |
946 | } | |
947 | ||
9e680946 | 948 | return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.lq, false); |
8ca151b5 JB |
949 | } |
950 | ||
951 | int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
952 | struct ieee80211_sta *sta, u16 tid) | |
953 | { | |
954 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
955 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
956 | u16 txq_id; | |
957 | int err; | |
958 | ||
f9aa8dd3 EG |
959 | |
960 | /* | |
961 | * If mac80211 is cleaning its state, then say that we finished since | |
962 | * our state has been cleared anyway. | |
963 | */ | |
964 | if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { | |
965 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
966 | return 0; | |
967 | } | |
968 | ||
8ca151b5 JB |
969 | spin_lock_bh(&mvmsta->lock); |
970 | ||
971 | txq_id = tid_data->txq_id; | |
972 | ||
973 | IWL_DEBUG_TX_QUEUES(mvm, "Stop AGG: sta %d tid %d q %d state %d\n", | |
974 | mvmsta->sta_id, tid, txq_id, tid_data->state); | |
975 | ||
976 | switch (tid_data->state) { | |
977 | case IWL_AGG_ON: | |
9a886586 | 978 | tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); |
8ca151b5 JB |
979 | |
980 | IWL_DEBUG_TX_QUEUES(mvm, | |
981 | "ssn = %d, next_recl = %d\n", | |
982 | tid_data->ssn, tid_data->next_reclaimed); | |
983 | ||
984 | /* There are still packets for this RA / TID in the HW */ | |
985 | if (tid_data->ssn != tid_data->next_reclaimed) { | |
986 | tid_data->state = IWL_EMPTYING_HW_QUEUE_DELBA; | |
987 | err = 0; | |
988 | break; | |
989 | } | |
990 | ||
991 | tid_data->ssn = 0xffff; | |
992 | iwl_trans_txq_disable(mvm->trans, txq_id); | |
993 | /* fall through */ | |
994 | case IWL_AGG_STARTING: | |
995 | case IWL_EMPTYING_HW_QUEUE_ADDBA: | |
996 | /* | |
997 | * The agg session has been stopped before it was set up. This | |
998 | * can happen when the AddBA timer times out for example. | |
999 | */ | |
1000 | ||
1001 | /* No barriers since we are under mutex */ | |
1002 | lockdep_assert_held(&mvm->mutex); | |
1003 | mvm->queue_to_mac80211[txq_id] = IWL_INVALID_MAC80211_QUEUE; | |
1004 | ||
1005 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
1006 | tid_data->state = IWL_AGG_OFF; | |
1007 | err = 0; | |
1008 | break; | |
1009 | default: | |
1010 | IWL_ERR(mvm, | |
1011 | "Stopping AGG while state not ON or starting for %d on %d (%d)\n", | |
1012 | mvmsta->sta_id, tid, tid_data->state); | |
1013 | IWL_ERR(mvm, | |
1014 | "\ttid_data->txq_id = %d\n", tid_data->txq_id); | |
1015 | err = -EINVAL; | |
1016 | } | |
1017 | ||
1018 | spin_unlock_bh(&mvmsta->lock); | |
1019 | ||
1020 | return err; | |
1021 | } | |
1022 | ||
e3d9e7ce EG |
1023 | int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
1024 | struct ieee80211_sta *sta, u16 tid) | |
1025 | { | |
1026 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; | |
1027 | struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; | |
1028 | u16 txq_id; | |
b6658ff8 | 1029 | enum iwl_mvm_agg_state old_state; |
e3d9e7ce EG |
1030 | |
1031 | /* | |
1032 | * First set the agg state to OFF to avoid calling | |
1033 | * ieee80211_stop_tx_ba_cb in iwl_mvm_check_ratid_empty. | |
1034 | */ | |
1035 | spin_lock_bh(&mvmsta->lock); | |
1036 | txq_id = tid_data->txq_id; | |
1037 | IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", | |
1038 | mvmsta->sta_id, tid, txq_id, tid_data->state); | |
b6658ff8 | 1039 | old_state = tid_data->state; |
e3d9e7ce EG |
1040 | tid_data->state = IWL_AGG_OFF; |
1041 | spin_unlock_bh(&mvmsta->lock); | |
1042 | ||
b6658ff8 JB |
1043 | if (old_state >= IWL_AGG_ON) { |
1044 | if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), true)) | |
1045 | IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); | |
1046 | ||
1047 | iwl_trans_txq_disable(mvm->trans, tid_data->txq_id); | |
1048 | } | |
e3d9e7ce | 1049 | |
e3d9e7ce EG |
1050 | mvm->queue_to_mac80211[tid_data->txq_id] = |
1051 | IWL_INVALID_MAC80211_QUEUE; | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
8ca151b5 JB |
1056 | static int iwl_mvm_set_fw_key_idx(struct iwl_mvm *mvm) |
1057 | { | |
1058 | int i; | |
1059 | ||
1060 | lockdep_assert_held(&mvm->mutex); | |
1061 | ||
1062 | i = find_first_zero_bit(mvm->fw_key_table, STA_KEY_MAX_NUM); | |
1063 | ||
1064 | if (i == STA_KEY_MAX_NUM) | |
1065 | return STA_KEY_IDX_INVALID; | |
1066 | ||
1067 | __set_bit(i, mvm->fw_key_table); | |
1068 | ||
1069 | return i; | |
1070 | } | |
1071 | ||
1072 | static u8 iwl_mvm_get_key_sta_id(struct ieee80211_vif *vif, | |
1073 | struct ieee80211_sta *sta) | |
1074 | { | |
1075 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; | |
1076 | ||
1077 | if (sta) { | |
1078 | struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; | |
1079 | ||
1080 | return mvm_sta->sta_id; | |
1081 | } | |
1082 | ||
1083 | /* | |
1084 | * The device expects GTKs for station interfaces to be | |
1085 | * installed as GTKs for the AP station. If we have no | |
1086 | * station ID, then use AP's station ID. | |
1087 | */ | |
1088 | if (vif->type == NL80211_IFTYPE_STATION && | |
1089 | mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) | |
1090 | return mvmvif->ap_sta_id; | |
1091 | ||
881acd89 | 1092 | return IWL_MVM_STATION_COUNT; |
8ca151b5 JB |
1093 | } |
1094 | ||
1095 | static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, | |
1096 | struct iwl_mvm_sta *mvm_sta, | |
1097 | struct ieee80211_key_conf *keyconf, | |
1098 | u8 sta_id, u32 tkip_iv32, u16 *tkip_p1k, | |
1099 | u32 cmd_flags) | |
1100 | { | |
1101 | __le16 key_flags; | |
5a258aae | 1102 | struct iwl_mvm_add_sta_key_cmd cmd = {}; |
8ca151b5 JB |
1103 | int ret, status; |
1104 | u16 keyidx; | |
1105 | int i; | |
5a258aae | 1106 | u32 mac_id_n_color = mvm_sta->mac_id_n_color; |
8ca151b5 JB |
1107 | |
1108 | keyidx = (keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & | |
1109 | STA_KEY_FLG_KEYID_MSK; | |
1110 | key_flags = cpu_to_le16(keyidx); | |
1111 | key_flags |= cpu_to_le16(STA_KEY_FLG_WEP_KEY_MAP); | |
1112 | ||
1113 | switch (keyconf->cipher) { | |
1114 | case WLAN_CIPHER_SUITE_TKIP: | |
1115 | key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); | |
5a258aae | 1116 | cmd.tkip_rx_tsc_byte2 = tkip_iv32; |
8ca151b5 | 1117 | for (i = 0; i < 5; i++) |
5a258aae MS |
1118 | cmd.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]); |
1119 | memcpy(cmd.key, keyconf->key, keyconf->keylen); | |
8ca151b5 JB |
1120 | break; |
1121 | case WLAN_CIPHER_SUITE_CCMP: | |
1122 | key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); | |
5a258aae | 1123 | memcpy(cmd.key, keyconf->key, keyconf->keylen); |
8ca151b5 JB |
1124 | break; |
1125 | default: | |
1126 | WARN_ON(1); | |
1127 | return -EINVAL; | |
1128 | } | |
1129 | ||
1130 | if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) | |
1131 | key_flags |= cpu_to_le16(STA_KEY_MULTICAST); | |
1132 | ||
5a258aae MS |
1133 | cmd.key_offset = keyconf->hw_key_idx; |
1134 | cmd.key_flags = key_flags; | |
8ca151b5 JB |
1135 | cmd.sta_id = sta_id; |
1136 | ||
1137 | status = ADD_STA_SUCCESS; | |
1138 | if (cmd_flags == CMD_SYNC) | |
5a258aae MS |
1139 | ret = iwl_mvm_send_add_sta_key_cmd_status(mvm, &cmd, |
1140 | mac_id_n_color, | |
1141 | &status); | |
8ca151b5 | 1142 | else |
5a258aae MS |
1143 | ret = iwl_mvm_send_add_sta_key_cmd(mvm, CMD_ASYNC, &cmd, |
1144 | mac_id_n_color); | |
8ca151b5 JB |
1145 | |
1146 | switch (status) { | |
1147 | case ADD_STA_SUCCESS: | |
1148 | IWL_DEBUG_WEP(mvm, "MODIFY_STA: set dynamic key passed\n"); | |
1149 | break; | |
1150 | default: | |
1151 | ret = -EIO; | |
1152 | IWL_ERR(mvm, "MODIFY_STA: set dynamic key failed\n"); | |
1153 | break; | |
1154 | } | |
1155 | ||
1156 | return ret; | |
1157 | } | |
1158 | ||
1159 | static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, | |
1160 | struct ieee80211_key_conf *keyconf, | |
1161 | u8 sta_id, bool remove_key) | |
1162 | { | |
1163 | struct iwl_mvm_mgmt_mcast_key_cmd igtk_cmd = {}; | |
1164 | ||
1165 | /* verify the key details match the required command's expectations */ | |
1166 | if (WARN_ON((keyconf->cipher != WLAN_CIPHER_SUITE_AES_CMAC) || | |
1167 | (keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE) || | |
1168 | (keyconf->keyidx != 4 && keyconf->keyidx != 5))) | |
1169 | return -EINVAL; | |
1170 | ||
1171 | igtk_cmd.key_id = cpu_to_le32(keyconf->keyidx); | |
1172 | igtk_cmd.sta_id = cpu_to_le32(sta_id); | |
1173 | ||
1174 | if (remove_key) { | |
1175 | igtk_cmd.ctrl_flags |= cpu_to_le32(STA_KEY_NOT_VALID); | |
1176 | } else { | |
1177 | struct ieee80211_key_seq seq; | |
1178 | const u8 *pn; | |
1179 | ||
1180 | memcpy(igtk_cmd.IGTK, keyconf->key, keyconf->keylen); | |
1181 | ieee80211_aes_cmac_calculate_k1_k2(keyconf, | |
1182 | igtk_cmd.K1, igtk_cmd.K2); | |
1183 | ieee80211_get_key_rx_seq(keyconf, 0, &seq); | |
1184 | pn = seq.aes_cmac.pn; | |
1185 | igtk_cmd.receive_seq_cnt = cpu_to_le64(((u64) pn[5] << 0) | | |
1186 | ((u64) pn[4] << 8) | | |
1187 | ((u64) pn[3] << 16) | | |
1188 | ((u64) pn[2] << 24) | | |
1189 | ((u64) pn[1] << 32) | | |
1190 | ((u64) pn[0] << 40)); | |
1191 | } | |
1192 | ||
1193 | IWL_DEBUG_INFO(mvm, "%s igtk for sta %u\n", | |
1194 | remove_key ? "removing" : "installing", | |
1195 | igtk_cmd.sta_id); | |
1196 | ||
1197 | return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, CMD_SYNC, | |
1198 | sizeof(igtk_cmd), &igtk_cmd); | |
1199 | } | |
1200 | ||
1201 | ||
1202 | static inline u8 *iwl_mvm_get_mac_addr(struct iwl_mvm *mvm, | |
1203 | struct ieee80211_vif *vif, | |
1204 | struct ieee80211_sta *sta) | |
1205 | { | |
1206 | struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; | |
1207 | ||
1208 | if (sta) | |
1209 | return sta->addr; | |
1210 | ||
1211 | if (vif->type == NL80211_IFTYPE_STATION && | |
1212 | mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { | |
1213 | u8 sta_id = mvmvif->ap_sta_id; | |
1214 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
1215 | lockdep_is_held(&mvm->mutex)); | |
1216 | return sta->addr; | |
1217 | } | |
1218 | ||
1219 | ||
1220 | return NULL; | |
1221 | } | |
1222 | ||
1223 | int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, | |
1224 | struct ieee80211_vif *vif, | |
1225 | struct ieee80211_sta *sta, | |
1226 | struct ieee80211_key_conf *keyconf, | |
1227 | bool have_key_offset) | |
1228 | { | |
1229 | struct iwl_mvm_sta *mvm_sta; | |
1230 | int ret; | |
1231 | u8 *addr, sta_id; | |
1232 | struct ieee80211_key_seq seq; | |
1233 | u16 p1k[5]; | |
1234 | ||
1235 | lockdep_assert_held(&mvm->mutex); | |
1236 | ||
1237 | /* Get the station id from the mvm local station table */ | |
1238 | sta_id = iwl_mvm_get_key_sta_id(vif, sta); | |
881acd89 | 1239 | if (sta_id == IWL_MVM_STATION_COUNT) { |
8ca151b5 JB |
1240 | IWL_ERR(mvm, "Failed to find station id\n"); |
1241 | return -EINVAL; | |
1242 | } | |
1243 | ||
1244 | if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { | |
1245 | ret = iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, false); | |
1246 | goto end; | |
1247 | } | |
1248 | ||
1249 | /* | |
1250 | * It is possible that the 'sta' parameter is NULL, and thus | |
1251 | * there is a need to retrieve the sta from the local station table. | |
1252 | */ | |
1253 | if (!sta) { | |
1254 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
1255 | lockdep_is_held(&mvm->mutex)); | |
1256 | if (IS_ERR_OR_NULL(sta)) { | |
1257 | IWL_ERR(mvm, "Invalid station id\n"); | |
1258 | return -EINVAL; | |
1259 | } | |
1260 | } | |
1261 | ||
1262 | mvm_sta = (struct iwl_mvm_sta *)sta->drv_priv; | |
1263 | if (WARN_ON_ONCE(mvm_sta->vif != vif)) | |
1264 | return -EINVAL; | |
1265 | ||
1266 | if (!have_key_offset) { | |
1267 | /* | |
1268 | * The D3 firmware hardcodes the PTK offset to 0, so we have to | |
1269 | * configure it there. As a result, this workaround exists to | |
1270 | * let the caller set the key offset (hw_key_idx), see d3.c. | |
1271 | */ | |
1272 | keyconf->hw_key_idx = iwl_mvm_set_fw_key_idx(mvm); | |
1273 | if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) | |
1274 | return -ENOSPC; | |
1275 | } | |
1276 | ||
1277 | switch (keyconf->cipher) { | |
1278 | case WLAN_CIPHER_SUITE_TKIP: | |
1279 | addr = iwl_mvm_get_mac_addr(mvm, vif, sta); | |
1280 | /* get phase 1 key from mac80211 */ | |
1281 | ieee80211_get_key_rx_seq(keyconf, 0, &seq); | |
1282 | ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); | |
1283 | ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, sta_id, | |
1284 | seq.tkip.iv32, p1k, CMD_SYNC); | |
1285 | break; | |
1286 | case WLAN_CIPHER_SUITE_CCMP: | |
1287 | ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, sta_id, | |
1288 | 0, NULL, CMD_SYNC); | |
1289 | break; | |
1290 | default: | |
1291 | IWL_ERR(mvm, "Unknown cipher %x\n", keyconf->cipher); | |
1292 | ret = -EINVAL; | |
1293 | } | |
1294 | ||
1295 | if (ret) | |
1296 | __clear_bit(keyconf->hw_key_idx, mvm->fw_key_table); | |
1297 | ||
1298 | end: | |
1299 | IWL_DEBUG_WEP(mvm, "key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", | |
1300 | keyconf->cipher, keyconf->keylen, keyconf->keyidx, | |
1301 | sta->addr, ret); | |
1302 | return ret; | |
1303 | } | |
1304 | ||
1305 | int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, | |
1306 | struct ieee80211_vif *vif, | |
1307 | struct ieee80211_sta *sta, | |
1308 | struct ieee80211_key_conf *keyconf) | |
1309 | { | |
1310 | struct iwl_mvm_sta *mvm_sta; | |
5a258aae | 1311 | struct iwl_mvm_add_sta_key_cmd cmd = {}; |
8ca151b5 JB |
1312 | __le16 key_flags; |
1313 | int ret, status; | |
1314 | u8 sta_id; | |
1315 | ||
1316 | lockdep_assert_held(&mvm->mutex); | |
1317 | ||
1318 | /* Get the station id from the mvm local station table */ | |
1319 | sta_id = iwl_mvm_get_key_sta_id(vif, sta); | |
1320 | ||
1321 | IWL_DEBUG_WEP(mvm, "mvm remove dynamic key: idx=%d sta=%d\n", | |
1322 | keyconf->keyidx, sta_id); | |
1323 | ||
1324 | if (keyconf->cipher == WLAN_CIPHER_SUITE_AES_CMAC) | |
1325 | return iwl_mvm_send_sta_igtk(mvm, keyconf, sta_id, true); | |
1326 | ||
1327 | ret = __test_and_clear_bit(keyconf->hw_key_idx, mvm->fw_key_table); | |
1328 | if (!ret) { | |
1329 | IWL_ERR(mvm, "offset %d not used in fw key table.\n", | |
1330 | keyconf->hw_key_idx); | |
1331 | return -ENOENT; | |
1332 | } | |
1333 | ||
881acd89 | 1334 | if (sta_id == IWL_MVM_STATION_COUNT) { |
8ca151b5 JB |
1335 | IWL_DEBUG_WEP(mvm, "station non-existent, early return.\n"); |
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | /* | |
1340 | * It is possible that the 'sta' parameter is NULL, and thus | |
1341 | * there is a need to retrieve the sta from the local station table, | |
1342 | * for example when a GTK is removed (where the sta_id will then be | |
1343 | * the AP ID, and no station was passed by mac80211.) | |
1344 | */ | |
1345 | if (!sta) { | |
1346 | sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], | |
1347 | lockdep_is_held(&mvm->mutex)); | |
1348 | if (!sta) { | |
1349 | IWL_ERR(mvm, "Invalid station id\n"); | |
1350 | return -EINVAL; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | mvm_sta = (struct iwl_mvm_sta *)sta->drv_priv; | |
1355 | if (WARN_ON_ONCE(mvm_sta->vif != vif)) | |
1356 | return -EINVAL; | |
1357 | ||
8115efbd EG |
1358 | key_flags = cpu_to_le16((keyconf->keyidx << STA_KEY_FLG_KEYID_POS) & |
1359 | STA_KEY_FLG_KEYID_MSK); | |
8ca151b5 JB |
1360 | key_flags |= cpu_to_le16(STA_KEY_FLG_NO_ENC | STA_KEY_FLG_WEP_KEY_MAP); |
1361 | key_flags |= cpu_to_le16(STA_KEY_NOT_VALID); | |
1362 | ||
1363 | if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) | |
1364 | key_flags |= cpu_to_le16(STA_KEY_MULTICAST); | |
1365 | ||
5a258aae MS |
1366 | cmd.key_flags = key_flags; |
1367 | cmd.key_offset = keyconf->hw_key_idx; | |
8ca151b5 JB |
1368 | cmd.sta_id = sta_id; |
1369 | ||
8ca151b5 | 1370 | status = ADD_STA_SUCCESS; |
5a258aae MS |
1371 | ret = iwl_mvm_send_add_sta_key_cmd_status(mvm, &cmd, |
1372 | mvm_sta->mac_id_n_color, | |
1373 | &status); | |
8ca151b5 JB |
1374 | |
1375 | switch (status) { | |
1376 | case ADD_STA_SUCCESS: | |
1377 | IWL_DEBUG_WEP(mvm, "MODIFY_STA: remove sta key passed\n"); | |
1378 | break; | |
1379 | default: | |
1380 | ret = -EIO; | |
1381 | IWL_ERR(mvm, "MODIFY_STA: remove sta key failed\n"); | |
1382 | break; | |
1383 | } | |
1384 | ||
1385 | return ret; | |
1386 | } | |
1387 | ||
1388 | void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, | |
1389 | struct ieee80211_vif *vif, | |
1390 | struct ieee80211_key_conf *keyconf, | |
1391 | struct ieee80211_sta *sta, u32 iv32, | |
1392 | u16 *phase1key) | |
1393 | { | |
c3eb536a | 1394 | struct iwl_mvm_sta *mvm_sta; |
8ca151b5 JB |
1395 | u8 sta_id = iwl_mvm_get_key_sta_id(vif, sta); |
1396 | ||
881acd89 | 1397 | if (WARN_ON_ONCE(sta_id == IWL_MVM_STATION_COUNT)) |
8ca151b5 JB |
1398 | return; |
1399 | ||
c3eb536a BL |
1400 | rcu_read_lock(); |
1401 | ||
1402 | if (!sta) { | |
1403 | sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); | |
1404 | if (WARN_ON(IS_ERR_OR_NULL(sta))) { | |
1405 | rcu_read_unlock(); | |
1406 | return; | |
1407 | } | |
1408 | } | |
1409 | ||
1410 | mvm_sta = (void *)sta->drv_priv; | |
8ca151b5 JB |
1411 | iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, sta_id, |
1412 | iv32, phase1key, CMD_ASYNC); | |
c3eb536a | 1413 | rcu_read_unlock(); |
8ca151b5 JB |
1414 | } |
1415 | ||
9cc40712 JB |
1416 | void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, |
1417 | struct ieee80211_sta *sta) | |
8ca151b5 | 1418 | { |
9cc40712 | 1419 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; |
5a258aae | 1420 | struct iwl_mvm_add_sta_cmd_v6 cmd = { |
8ca151b5 | 1421 | .add_modify = STA_MODE_MODIFY, |
9cc40712 | 1422 | .sta_id = mvmsta->sta_id, |
5af01772 | 1423 | .station_flags_msk = cpu_to_le32(STA_FLG_PS), |
9cc40712 | 1424 | .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), |
8ca151b5 JB |
1425 | }; |
1426 | int ret; | |
1427 | ||
5a258aae | 1428 | ret = iwl_mvm_send_add_sta_cmd(mvm, CMD_ASYNC, &cmd); |
8ca151b5 JB |
1429 | if (ret) |
1430 | IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); | |
1431 | } | |
1432 | ||
9cc40712 JB |
1433 | void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, |
1434 | struct ieee80211_sta *sta, | |
8ca151b5 JB |
1435 | enum ieee80211_frame_release_type reason, |
1436 | u16 cnt) | |
1437 | { | |
1438 | u16 sleep_state_flags = | |
1439 | (reason == IEEE80211_FRAME_RELEASE_UAPSD) ? | |
1440 | STA_SLEEP_STATE_UAPSD : STA_SLEEP_STATE_PS_POLL; | |
9cc40712 | 1441 | struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; |
5a258aae | 1442 | struct iwl_mvm_add_sta_cmd_v6 cmd = { |
8ca151b5 | 1443 | .add_modify = STA_MODE_MODIFY, |
9cc40712 | 1444 | .sta_id = mvmsta->sta_id, |
8ca151b5 JB |
1445 | .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, |
1446 | .sleep_tx_count = cpu_to_le16(cnt), | |
9cc40712 | 1447 | .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), |
8ca151b5 JB |
1448 | /* |
1449 | * Same modify mask for sleep_tx_count and sleep_state_flags so | |
1450 | * we must set the sleep_state_flags too. | |
1451 | */ | |
1452 | .sleep_state_flags = cpu_to_le16(sleep_state_flags), | |
1453 | }; | |
1454 | int ret; | |
1455 | ||
1456 | /* TODO: somehow the fw doesn't seem to take PS_POLL into account */ | |
5a258aae | 1457 | ret = iwl_mvm_send_add_sta_cmd(mvm, CMD_ASYNC, &cmd); |
8ca151b5 JB |
1458 | if (ret) |
1459 | IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); | |
1460 | } |