Commit | Line | Data |
---|---|---|
a30e3112 JB |
1 | /****************************************************************************** |
2 | * | |
fb4961db | 3 | * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved. |
a30e3112 JB |
4 | * |
5 | * Portions of this file are derived from the ipw3945 project, as well | |
6 | * as portions of the ieee80211 subsystem header files. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of version 2 of the GNU General Public License as | |
10 | * published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License along with | |
18 | * this program; if not, write to the Free Software Foundation, Inc., | |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA | |
20 | * | |
21 | * The full GNU General Public License is included in this distribution in the | |
22 | * file called LICENSE. | |
23 | * | |
24 | * Contact Information: | |
25 | * Intel Linux Wireless <ilw@linux.intel.com> | |
26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
27 | * | |
28 | *****************************************************************************/ | |
e7a0d0c4 | 29 | #include <linux/etherdevice.h> |
a30e3112 JB |
30 | #include <net/mac80211.h> |
31 | ||
32 | #include "iwl-dev.h" | |
33 | #include "iwl-core.h" | |
a30e3112 | 34 | #include "iwl-agn.h" |
bdfbf092 | 35 | #include "iwl-trans.h" |
a30e3112 | 36 | |
2da424b0 | 37 | static int iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) |
c745f55b | 38 | { |
fa23cb04 JB |
39 | lockdep_assert_held(&priv->sta_lock); |
40 | ||
2da424b0 WYG |
41 | if (sta_id >= IWLAGN_STATION_COUNT) { |
42 | IWL_ERR(priv, "invalid sta_id %u", sta_id); | |
43 | return -EINVAL; | |
44 | } | |
c745f55b WYG |
45 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) |
46 | IWL_ERR(priv, "ACTIVATE a non DRIVER active station id %u " | |
47 | "addr %pM\n", | |
48 | sta_id, priv->stations[sta_id].sta.sta.addr); | |
49 | ||
50 | if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) { | |
51 | IWL_DEBUG_ASSOC(priv, | |
52 | "STA id %u addr %pM already present in uCode " | |
53 | "(according to driver)\n", | |
54 | sta_id, priv->stations[sta_id].sta.sta.addr); | |
55 | } else { | |
56 | priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE; | |
57 | IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n", | |
58 | sta_id, priv->stations[sta_id].sta.sta.addr); | |
59 | } | |
2da424b0 | 60 | return 0; |
c745f55b WYG |
61 | } |
62 | ||
63 | static int iwl_process_add_sta_resp(struct iwl_priv *priv, | |
64 | struct iwl_addsta_cmd *addsta, | |
65 | struct iwl_rx_packet *pkt) | |
66 | { | |
f8d7c1a1 | 67 | struct iwl_add_sta_resp *add_sta_resp = (void *)pkt->data; |
c745f55b | 68 | u8 sta_id = addsta->sta.sta_id; |
c745f55b WYG |
69 | int ret = -EIO; |
70 | ||
71 | if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { | |
72 | IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n", | |
73 | pkt->hdr.flags); | |
74 | return ret; | |
75 | } | |
76 | ||
77 | IWL_DEBUG_INFO(priv, "Processing response for adding station %u\n", | |
78 | sta_id); | |
79 | ||
fa23cb04 | 80 | spin_lock(&priv->sta_lock); |
c745f55b | 81 | |
f8d7c1a1 | 82 | switch (add_sta_resp->status) { |
c745f55b WYG |
83 | case ADD_STA_SUCCESS_MSK: |
84 | IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n"); | |
2da424b0 | 85 | ret = iwl_sta_ucode_activate(priv, sta_id); |
c745f55b WYG |
86 | break; |
87 | case ADD_STA_NO_ROOM_IN_TABLE: | |
88 | IWL_ERR(priv, "Adding station %d failed, no room in table.\n", | |
89 | sta_id); | |
90 | break; | |
91 | case ADD_STA_NO_BLOCK_ACK_RESOURCE: | |
92 | IWL_ERR(priv, "Adding station %d failed, no block ack " | |
93 | "resource.\n", sta_id); | |
94 | break; | |
95 | case ADD_STA_MODIFY_NON_EXIST_STA: | |
96 | IWL_ERR(priv, "Attempting to modify non-existing station %d\n", | |
97 | sta_id); | |
98 | break; | |
99 | default: | |
100 | IWL_DEBUG_ASSOC(priv, "Received REPLY_ADD_STA:(0x%08X)\n", | |
f8d7c1a1 | 101 | add_sta_resp->status); |
c745f55b WYG |
102 | break; |
103 | } | |
104 | ||
105 | IWL_DEBUG_INFO(priv, "%s station id %u addr %pM\n", | |
106 | priv->stations[sta_id].sta.mode == | |
107 | STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", | |
108 | sta_id, priv->stations[sta_id].sta.sta.addr); | |
109 | ||
110 | /* | |
111 | * XXX: The MAC address in the command buffer is often changed from | |
112 | * the original sent to the device. That is, the MAC address | |
113 | * written to the command buffer often is not the same MAC address | |
114 | * read from the command buffer when the command returns. This | |
115 | * issue has not yet been resolved and this debugging is left to | |
116 | * observe the problem. | |
117 | */ | |
118 | IWL_DEBUG_INFO(priv, "%s station according to cmd buffer %pM\n", | |
119 | priv->stations[sta_id].sta.mode == | |
120 | STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", | |
121 | addsta->sta.addr); | |
fa23cb04 | 122 | spin_unlock(&priv->sta_lock); |
c745f55b WYG |
123 | |
124 | return ret; | |
125 | } | |
126 | ||
48a2d66f | 127 | int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, |
c745f55b WYG |
128 | struct iwl_device_cmd *cmd) |
129 | { | |
130 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
131 | struct iwl_addsta_cmd *addsta = | |
132 | (struct iwl_addsta_cmd *) cmd->payload; | |
133 | ||
134 | return iwl_process_add_sta_resp(priv, addsta, pkt); | |
135 | } | |
136 | ||
c745f55b WYG |
137 | int iwl_send_add_sta(struct iwl_priv *priv, |
138 | struct iwl_addsta_cmd *sta, u8 flags) | |
139 | { | |
140 | int ret = 0; | |
c745f55b WYG |
141 | struct iwl_host_cmd cmd = { |
142 | .id = REPLY_ADD_STA, | |
143 | .flags = flags, | |
69b172f7 JB |
144 | .data = { sta, }, |
145 | .len = { sizeof(*sta), }, | |
c745f55b WYG |
146 | }; |
147 | u8 sta_id __maybe_unused = sta->sta.sta_id; | |
148 | ||
149 | IWL_DEBUG_INFO(priv, "Adding sta %u (%pM) %ssynchronously\n", | |
150 | sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : ""); | |
151 | ||
152 | if (!(flags & CMD_ASYNC)) { | |
153 | cmd.flags |= CMD_WANT_SKB; | |
154 | might_sleep(); | |
155 | } | |
156 | ||
e10a0533 | 157 | ret = iwl_dvm_send_cmd(priv, &cmd); |
c745f55b WYG |
158 | |
159 | if (ret || (flags & CMD_ASYNC)) | |
160 | return ret; | |
161 | /*else the command was successfully sent in SYNC mode, need to free | |
162 | * the reply page */ | |
163 | ||
65b94a4a | 164 | iwl_free_resp(&cmd); |
c745f55b WYG |
165 | |
166 | if (cmd.handler_status) | |
167 | IWL_ERR(priv, "%s - error in the CMD response %d", __func__, | |
168 | cmd.handler_status); | |
169 | ||
170 | return cmd.handler_status; | |
171 | } | |
172 | ||
ab0bd5b3 JB |
173 | static void iwl_sta_calc_ht_flags(struct iwl_priv *priv, |
174 | struct ieee80211_sta *sta, | |
175 | struct iwl_rxon_context *ctx, | |
176 | __le32 *flags, __le32 *mask) | |
c745f55b WYG |
177 | { |
178 | struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap; | |
c745f55b WYG |
179 | u8 mimo_ps_mode; |
180 | ||
ab0bd5b3 JB |
181 | *mask = STA_FLG_RTS_MIMO_PROT_MSK | |
182 | STA_FLG_MIMO_DIS_MSK | | |
183 | STA_FLG_HT40_EN_MSK | | |
184 | STA_FLG_MAX_AGG_SIZE_MSK | | |
185 | STA_FLG_AGG_MPDU_DENSITY_MSK; | |
186 | *flags = 0; | |
187 | ||
c745f55b | 188 | if (!sta || !sta_ht_inf->ht_supported) |
ab0bd5b3 | 189 | return; |
c745f55b WYG |
190 | |
191 | mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2; | |
ab0bd5b3 JB |
192 | |
193 | IWL_DEBUG_INFO(priv, "STA %pM SM PS mode: %s\n", | |
c745f55b WYG |
194 | (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ? |
195 | "static" : | |
196 | (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ? | |
197 | "dynamic" : "disabled"); | |
198 | ||
c745f55b WYG |
199 | switch (mimo_ps_mode) { |
200 | case WLAN_HT_CAP_SM_PS_STATIC: | |
ab0bd5b3 | 201 | *flags |= STA_FLG_MIMO_DIS_MSK; |
c745f55b WYG |
202 | break; |
203 | case WLAN_HT_CAP_SM_PS_DYNAMIC: | |
ab0bd5b3 | 204 | *flags |= STA_FLG_RTS_MIMO_PROT_MSK; |
c745f55b WYG |
205 | break; |
206 | case WLAN_HT_CAP_SM_PS_DISABLED: | |
207 | break; | |
208 | default: | |
209 | IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode); | |
210 | break; | |
211 | } | |
212 | ||
ab0bd5b3 JB |
213 | *flags |= cpu_to_le32( |
214 | (u32)sta_ht_inf->ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS); | |
c745f55b | 215 | |
ab0bd5b3 JB |
216 | *flags |= cpu_to_le32( |
217 | (u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS); | |
c745f55b WYG |
218 | |
219 | if (iwl_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap)) | |
ab0bd5b3 JB |
220 | *flags |= STA_FLG_HT40_EN_MSK; |
221 | } | |
222 | ||
223 | int iwl_sta_update_ht(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | |
224 | struct ieee80211_sta *sta) | |
225 | { | |
226 | u8 sta_id = iwl_sta_id(sta); | |
227 | __le32 flags, mask; | |
228 | struct iwl_addsta_cmd cmd; | |
229 | ||
230 | if (WARN_ON_ONCE(sta_id == IWL_INVALID_STATION)) | |
231 | return -EINVAL; | |
c745f55b | 232 | |
ab0bd5b3 JB |
233 | iwl_sta_calc_ht_flags(priv, sta, ctx, &flags, &mask); |
234 | ||
235 | spin_lock_bh(&priv->sta_lock); | |
236 | priv->stations[sta_id].sta.station_flags &= ~mask; | |
237 | priv->stations[sta_id].sta.station_flags |= flags; | |
238 | spin_unlock_bh(&priv->sta_lock); | |
239 | ||
240 | memset(&cmd, 0, sizeof(cmd)); | |
241 | cmd.mode = STA_CONTROL_MODIFY_MSK; | |
242 | cmd.station_flags_msk = mask; | |
243 | cmd.station_flags = flags; | |
244 | cmd.sta.sta_id = sta_id; | |
245 | ||
246 | return iwl_send_add_sta(priv, &cmd, CMD_SYNC); | |
247 | } | |
248 | ||
249 | static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, | |
250 | struct ieee80211_sta *sta, | |
251 | struct iwl_rxon_context *ctx) | |
252 | { | |
253 | __le32 flags, mask; | |
254 | ||
255 | iwl_sta_calc_ht_flags(priv, sta, ctx, &flags, &mask); | |
256 | ||
257 | lockdep_assert_held(&priv->sta_lock); | |
258 | priv->stations[index].sta.station_flags &= ~mask; | |
259 | priv->stations[index].sta.station_flags |= flags; | |
c745f55b WYG |
260 | } |
261 | ||
262 | /** | |
263 | * iwl_prep_station - Prepare station information for addition | |
264 | * | |
265 | * should be called with sta_lock held | |
266 | */ | |
267 | u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | |
268 | const u8 *addr, bool is_ap, struct ieee80211_sta *sta) | |
269 | { | |
270 | struct iwl_station_entry *station; | |
271 | int i; | |
272 | u8 sta_id = IWL_INVALID_STATION; | |
273 | ||
274 | if (is_ap) | |
275 | sta_id = ctx->ap_sta_id; | |
276 | else if (is_broadcast_ether_addr(addr)) | |
277 | sta_id = ctx->bcast_sta_id; | |
278 | else | |
279 | for (i = IWL_STA_ID; i < IWLAGN_STATION_COUNT; i++) { | |
280 | if (!compare_ether_addr(priv->stations[i].sta.sta.addr, | |
281 | addr)) { | |
282 | sta_id = i; | |
283 | break; | |
284 | } | |
285 | ||
286 | if (!priv->stations[i].used && | |
287 | sta_id == IWL_INVALID_STATION) | |
288 | sta_id = i; | |
289 | } | |
290 | ||
291 | /* | |
292 | * These two conditions have the same outcome, but keep them | |
293 | * separate | |
294 | */ | |
295 | if (unlikely(sta_id == IWL_INVALID_STATION)) | |
296 | return sta_id; | |
297 | ||
298 | /* | |
299 | * uCode is not able to deal with multiple requests to add a | |
300 | * station. Keep track if one is in progress so that we do not send | |
301 | * another. | |
302 | */ | |
303 | if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) { | |
304 | IWL_DEBUG_INFO(priv, "STA %d already in process of being " | |
305 | "added.\n", sta_id); | |
306 | return sta_id; | |
307 | } | |
308 | ||
309 | if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) && | |
310 | (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) && | |
311 | !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) { | |
312 | IWL_DEBUG_ASSOC(priv, "STA %d (%pM) already added, not " | |
313 | "adding again.\n", sta_id, addr); | |
314 | return sta_id; | |
315 | } | |
316 | ||
317 | station = &priv->stations[sta_id]; | |
318 | station->used = IWL_STA_DRIVER_ACTIVE; | |
319 | IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n", | |
320 | sta_id, addr); | |
321 | priv->num_stations++; | |
322 | ||
323 | /* Set up the REPLY_ADD_STA command to send to device */ | |
324 | memset(&station->sta, 0, sizeof(struct iwl_addsta_cmd)); | |
325 | memcpy(station->sta.sta.addr, addr, ETH_ALEN); | |
326 | station->sta.mode = 0; | |
327 | station->sta.sta.sta_id = sta_id; | |
328 | station->sta.station_flags = ctx->station_flags; | |
329 | station->ctxid = ctx->ctxid; | |
330 | ||
331 | if (sta) { | |
332 | struct iwl_station_priv *sta_priv; | |
333 | ||
334 | sta_priv = (void *)sta->drv_priv; | |
335 | sta_priv->ctx = ctx; | |
336 | } | |
337 | ||
338 | /* | |
339 | * OK to call unconditionally, since local stations (IBSS BSSID | |
340 | * STA and broadcast STA) pass in a NULL sta, and mac80211 | |
341 | * doesn't allow HT IBSS. | |
342 | */ | |
343 | iwl_set_ht_add_station(priv, sta_id, sta, ctx); | |
344 | ||
345 | return sta_id; | |
346 | ||
347 | } | |
348 | ||
349 | #define STA_WAIT_TIMEOUT (HZ/2) | |
350 | ||
351 | /** | |
352 | * iwl_add_station_common - | |
353 | */ | |
354 | int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | |
355 | const u8 *addr, bool is_ap, | |
356 | struct ieee80211_sta *sta, u8 *sta_id_r) | |
357 | { | |
c745f55b WYG |
358 | int ret = 0; |
359 | u8 sta_id; | |
360 | struct iwl_addsta_cmd sta_cmd; | |
361 | ||
362 | *sta_id_r = 0; | |
fa23cb04 | 363 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
364 | sta_id = iwl_prep_station(priv, ctx, addr, is_ap, sta); |
365 | if (sta_id == IWL_INVALID_STATION) { | |
366 | IWL_ERR(priv, "Unable to prepare station %pM for addition\n", | |
367 | addr); | |
fa23cb04 | 368 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
369 | return -EINVAL; |
370 | } | |
371 | ||
372 | /* | |
373 | * uCode is not able to deal with multiple requests to add a | |
374 | * station. Keep track if one is in progress so that we do not send | |
375 | * another. | |
376 | */ | |
377 | if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) { | |
378 | IWL_DEBUG_INFO(priv, "STA %d already in process of being " | |
379 | "added.\n", sta_id); | |
fa23cb04 | 380 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
381 | return -EEXIST; |
382 | } | |
383 | ||
384 | if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) && | |
385 | (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { | |
386 | IWL_DEBUG_ASSOC(priv, "STA %d (%pM) already added, not " | |
387 | "adding again.\n", sta_id, addr); | |
fa23cb04 | 388 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
389 | return -EEXIST; |
390 | } | |
391 | ||
392 | priv->stations[sta_id].used |= IWL_STA_UCODE_INPROGRESS; | |
393 | memcpy(&sta_cmd, &priv->stations[sta_id].sta, | |
394 | sizeof(struct iwl_addsta_cmd)); | |
fa23cb04 | 395 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
396 | |
397 | /* Add station to device's station table */ | |
398 | ret = iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); | |
399 | if (ret) { | |
fa23cb04 | 400 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
401 | IWL_ERR(priv, "Adding station %pM failed.\n", |
402 | priv->stations[sta_id].sta.sta.addr); | |
403 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; | |
404 | priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; | |
fa23cb04 | 405 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
406 | } |
407 | *sta_id_r = sta_id; | |
408 | return ret; | |
409 | } | |
410 | ||
411 | /** | |
412 | * iwl_sta_ucode_deactivate - deactivate ucode status for a station | |
c745f55b WYG |
413 | */ |
414 | static void iwl_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id) | |
415 | { | |
fa23cb04 JB |
416 | lockdep_assert_held(&priv->sta_lock); |
417 | ||
c745f55b WYG |
418 | /* Ucode must be active and driver must be non active */ |
419 | if ((priv->stations[sta_id].used & | |
420 | (IWL_STA_UCODE_ACTIVE | IWL_STA_DRIVER_ACTIVE)) != | |
421 | IWL_STA_UCODE_ACTIVE) | |
422 | IWL_ERR(priv, "removed non active STA %u\n", sta_id); | |
423 | ||
424 | priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE; | |
425 | ||
426 | memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry)); | |
427 | IWL_DEBUG_ASSOC(priv, "Removed STA %u\n", sta_id); | |
428 | } | |
429 | ||
430 | static int iwl_send_remove_station(struct iwl_priv *priv, | |
431 | const u8 *addr, int sta_id, | |
432 | bool temporary) | |
433 | { | |
434 | struct iwl_rx_packet *pkt; | |
435 | int ret; | |
c745f55b WYG |
436 | struct iwl_rem_sta_cmd rm_sta_cmd; |
437 | ||
438 | struct iwl_host_cmd cmd = { | |
439 | .id = REPLY_REMOVE_STA, | |
440 | .len = { sizeof(struct iwl_rem_sta_cmd), }, | |
441 | .flags = CMD_SYNC, | |
442 | .data = { &rm_sta_cmd, }, | |
443 | }; | |
444 | ||
445 | memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd)); | |
446 | rm_sta_cmd.num_sta = 1; | |
447 | memcpy(&rm_sta_cmd.addr, addr, ETH_ALEN); | |
448 | ||
449 | cmd.flags |= CMD_WANT_SKB; | |
450 | ||
e10a0533 | 451 | ret = iwl_dvm_send_cmd(priv, &cmd); |
c745f55b WYG |
452 | |
453 | if (ret) | |
454 | return ret; | |
455 | ||
65b94a4a | 456 | pkt = cmd.resp_pkt; |
c745f55b WYG |
457 | if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { |
458 | IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n", | |
459 | pkt->hdr.flags); | |
460 | ret = -EIO; | |
461 | } | |
462 | ||
463 | if (!ret) { | |
f8d7c1a1 JB |
464 | struct iwl_rem_sta_resp *rem_sta_resp = (void *)pkt->data; |
465 | switch (rem_sta_resp->status) { | |
c745f55b WYG |
466 | case REM_STA_SUCCESS_MSK: |
467 | if (!temporary) { | |
fa23cb04 | 468 | spin_lock_bh(&priv->sta_lock); |
c745f55b | 469 | iwl_sta_ucode_deactivate(priv, sta_id); |
fa23cb04 | 470 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
471 | } |
472 | IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n"); | |
473 | break; | |
474 | default: | |
475 | ret = -EIO; | |
476 | IWL_ERR(priv, "REPLY_REMOVE_STA failed\n"); | |
477 | break; | |
478 | } | |
479 | } | |
65b94a4a | 480 | iwl_free_resp(&cmd); |
c745f55b WYG |
481 | |
482 | return ret; | |
483 | } | |
484 | ||
485 | /** | |
486 | * iwl_remove_station - Remove driver's knowledge of station. | |
487 | */ | |
488 | int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id, | |
489 | const u8 *addr) | |
490 | { | |
855c2ee8 | 491 | u8 tid; |
c745f55b | 492 | |
83626404 | 493 | if (!iwl_is_ready(priv)) { |
c745f55b WYG |
494 | IWL_DEBUG_INFO(priv, |
495 | "Unable to remove station %pM, device not ready.\n", | |
496 | addr); | |
497 | /* | |
498 | * It is typical for stations to be removed when we are | |
499 | * going down. Return success since device will be down | |
500 | * soon anyway | |
501 | */ | |
502 | return 0; | |
503 | } | |
504 | ||
505 | IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n", | |
506 | sta_id, addr); | |
507 | ||
508 | if (WARN_ON(sta_id == IWL_INVALID_STATION)) | |
509 | return -EINVAL; | |
510 | ||
fa23cb04 | 511 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
512 | |
513 | if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) { | |
514 | IWL_DEBUG_INFO(priv, "Removing %pM but non DRIVER active\n", | |
515 | addr); | |
516 | goto out_err; | |
517 | } | |
518 | ||
519 | if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) { | |
520 | IWL_DEBUG_INFO(priv, "Removing %pM but non UCODE active\n", | |
521 | addr); | |
522 | goto out_err; | |
523 | } | |
524 | ||
525 | if (priv->stations[sta_id].used & IWL_STA_LOCAL) { | |
526 | kfree(priv->stations[sta_id].lq); | |
527 | priv->stations[sta_id].lq = NULL; | |
528 | } | |
529 | ||
855c2ee8 EG |
530 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) |
531 | memset(&priv->tid_data[sta_id][tid], 0, | |
532 | sizeof(priv->tid_data[sta_id][tid])); | |
533 | ||
c745f55b WYG |
534 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; |
535 | ||
536 | priv->num_stations--; | |
537 | ||
538 | if (WARN_ON(priv->num_stations < 0)) | |
539 | priv->num_stations = 0; | |
540 | ||
fa23cb04 | 541 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
542 | |
543 | return iwl_send_remove_station(priv, addr, sta_id, false); | |
544 | out_err: | |
fa23cb04 | 545 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
546 | return -EINVAL; |
547 | } | |
548 | ||
97420515 JB |
549 | void iwl_deactivate_station(struct iwl_priv *priv, const u8 sta_id, |
550 | const u8 *addr) | |
551 | { | |
552 | u8 tid; | |
553 | ||
554 | if (!iwl_is_ready(priv)) { | |
555 | IWL_DEBUG_INFO(priv, | |
556 | "Unable to remove station %pM, device not ready.\n", | |
557 | addr); | |
558 | return; | |
559 | } | |
560 | ||
561 | IWL_DEBUG_ASSOC(priv, "Deactivating STA: %pM (%d)\n", addr, sta_id); | |
562 | ||
563 | if (WARN_ON_ONCE(sta_id == IWL_INVALID_STATION)) | |
564 | return; | |
565 | ||
566 | spin_lock_bh(&priv->sta_lock); | |
567 | ||
568 | WARN_ON_ONCE(!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)); | |
569 | ||
570 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) | |
571 | memset(&priv->tid_data[sta_id][tid], 0, | |
572 | sizeof(priv->tid_data[sta_id][tid])); | |
573 | ||
574 | priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; | |
575 | ||
576 | priv->num_stations--; | |
577 | ||
578 | if (WARN_ON_ONCE(priv->num_stations < 0)) | |
579 | priv->num_stations = 0; | |
580 | ||
581 | spin_unlock_bh(&priv->sta_lock); | |
582 | } | |
583 | ||
4dcba6d3 JB |
584 | static void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
585 | u8 sta_id, struct iwl_link_quality_cmd *link_cmd) | |
586 | { | |
587 | int i, r; | |
588 | u32 rate_flags = 0; | |
589 | __le32 rate_n_flags; | |
590 | ||
591 | lockdep_assert_held(&priv->mutex); | |
592 | ||
593 | memset(link_cmd, 0, sizeof(*link_cmd)); | |
594 | ||
595 | /* Set up the rate scaling to start at selected rate, fall back | |
596 | * all the way down to 1M in IEEE order, and then spin on 1M */ | |
597 | if (priv->band == IEEE80211_BAND_5GHZ) | |
598 | r = IWL_RATE_6M_INDEX; | |
599 | else if (ctx && ctx->vif && ctx->vif->p2p) | |
600 | r = IWL_RATE_6M_INDEX; | |
601 | else | |
602 | r = IWL_RATE_1M_INDEX; | |
603 | ||
604 | if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE) | |
605 | rate_flags |= RATE_MCS_CCK_MSK; | |
606 | ||
607 | rate_flags |= first_antenna(priv->hw_params.valid_tx_ant) << | |
608 | RATE_MCS_ANT_POS; | |
609 | rate_n_flags = iwl_hw_set_rate_n_flags(iwl_rates[r].plcp, rate_flags); | |
610 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) | |
611 | link_cmd->rs_table[i].rate_n_flags = rate_n_flags; | |
612 | ||
613 | link_cmd->general_params.single_stream_ant_msk = | |
614 | first_antenna(priv->hw_params.valid_tx_ant); | |
615 | ||
616 | link_cmd->general_params.dual_stream_ant_msk = | |
617 | priv->hw_params.valid_tx_ant & | |
618 | ~first_antenna(priv->hw_params.valid_tx_ant); | |
619 | if (!link_cmd->general_params.dual_stream_ant_msk) { | |
620 | link_cmd->general_params.dual_stream_ant_msk = ANT_AB; | |
621 | } else if (num_of_ant(priv->hw_params.valid_tx_ant) == 2) { | |
622 | link_cmd->general_params.dual_stream_ant_msk = | |
623 | priv->hw_params.valid_tx_ant; | |
624 | } | |
625 | ||
626 | link_cmd->agg_params.agg_dis_start_th = | |
627 | LINK_QUAL_AGG_DISABLE_START_DEF; | |
628 | link_cmd->agg_params.agg_time_limit = | |
629 | cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); | |
630 | ||
631 | link_cmd->sta_id = sta_id; | |
632 | } | |
633 | ||
c745f55b WYG |
634 | /** |
635 | * iwl_clear_ucode_stations - clear ucode station table bits | |
636 | * | |
637 | * This function clears all the bits in the driver indicating | |
638 | * which stations are active in the ucode. Call when something | |
639 | * other than explicit station management would cause this in | |
640 | * the ucode, e.g. unassociated RXON. | |
641 | */ | |
642 | void iwl_clear_ucode_stations(struct iwl_priv *priv, | |
643 | struct iwl_rxon_context *ctx) | |
644 | { | |
645 | int i; | |
c745f55b WYG |
646 | bool cleared = false; |
647 | ||
648 | IWL_DEBUG_INFO(priv, "Clearing ucode stations in driver\n"); | |
649 | ||
fa23cb04 | 650 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
651 | for (i = 0; i < IWLAGN_STATION_COUNT; i++) { |
652 | if (ctx && ctx->ctxid != priv->stations[i].ctxid) | |
653 | continue; | |
654 | ||
655 | if (priv->stations[i].used & IWL_STA_UCODE_ACTIVE) { | |
656 | IWL_DEBUG_INFO(priv, | |
657 | "Clearing ucode active for station %d\n", i); | |
658 | priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE; | |
659 | cleared = true; | |
660 | } | |
661 | } | |
fa23cb04 | 662 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
663 | |
664 | if (!cleared) | |
665 | IWL_DEBUG_INFO(priv, | |
666 | "No active stations found to be cleared\n"); | |
667 | } | |
668 | ||
669 | /** | |
670 | * iwl_restore_stations() - Restore driver known stations to device | |
671 | * | |
672 | * All stations considered active by driver, but not present in ucode, is | |
673 | * restored. | |
674 | * | |
675 | * Function sleeps. | |
676 | */ | |
677 | void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) | |
678 | { | |
679 | struct iwl_addsta_cmd sta_cmd; | |
680 | struct iwl_link_quality_cmd lq; | |
c745f55b WYG |
681 | int i; |
682 | bool found = false; | |
683 | int ret; | |
684 | bool send_lq; | |
685 | ||
83626404 | 686 | if (!iwl_is_ready(priv)) { |
c745f55b WYG |
687 | IWL_DEBUG_INFO(priv, |
688 | "Not ready yet, not restoring any stations.\n"); | |
689 | return; | |
690 | } | |
691 | ||
692 | IWL_DEBUG_ASSOC(priv, "Restoring all known stations ... start.\n"); | |
fa23cb04 | 693 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
694 | for (i = 0; i < IWLAGN_STATION_COUNT; i++) { |
695 | if (ctx->ctxid != priv->stations[i].ctxid) | |
696 | continue; | |
697 | if ((priv->stations[i].used & IWL_STA_DRIVER_ACTIVE) && | |
698 | !(priv->stations[i].used & IWL_STA_UCODE_ACTIVE)) { | |
699 | IWL_DEBUG_ASSOC(priv, "Restoring sta %pM\n", | |
700 | priv->stations[i].sta.sta.addr); | |
701 | priv->stations[i].sta.mode = 0; | |
702 | priv->stations[i].used |= IWL_STA_UCODE_INPROGRESS; | |
703 | found = true; | |
704 | } | |
705 | } | |
706 | ||
707 | for (i = 0; i < IWLAGN_STATION_COUNT; i++) { | |
708 | if ((priv->stations[i].used & IWL_STA_UCODE_INPROGRESS)) { | |
709 | memcpy(&sta_cmd, &priv->stations[i].sta, | |
710 | sizeof(struct iwl_addsta_cmd)); | |
711 | send_lq = false; | |
712 | if (priv->stations[i].lq) { | |
15b86bff | 713 | if (priv->wowlan) |
c745f55b WYG |
714 | iwl_sta_fill_lq(priv, ctx, i, &lq); |
715 | else | |
716 | memcpy(&lq, priv->stations[i].lq, | |
717 | sizeof(struct iwl_link_quality_cmd)); | |
718 | send_lq = true; | |
719 | } | |
fa23cb04 | 720 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
721 | ret = iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); |
722 | if (ret) { | |
fa23cb04 | 723 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
724 | IWL_ERR(priv, "Adding station %pM failed.\n", |
725 | priv->stations[i].sta.sta.addr); | |
726 | priv->stations[i].used &= | |
727 | ~IWL_STA_DRIVER_ACTIVE; | |
728 | priv->stations[i].used &= | |
729 | ~IWL_STA_UCODE_INPROGRESS; | |
fa23cb04 | 730 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
731 | } |
732 | /* | |
733 | * Rate scaling has already been initialized, send | |
734 | * current LQ command | |
735 | */ | |
736 | if (send_lq) | |
737 | iwl_send_lq_cmd(priv, ctx, &lq, | |
738 | CMD_SYNC, true); | |
fa23cb04 | 739 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
740 | priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS; |
741 | } | |
742 | } | |
743 | ||
fa23cb04 | 744 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
745 | if (!found) |
746 | IWL_DEBUG_INFO(priv, "Restoring all known stations .... " | |
747 | "no stations to be restored.\n"); | |
748 | else | |
749 | IWL_DEBUG_INFO(priv, "Restoring all known stations .... " | |
750 | "complete.\n"); | |
751 | } | |
752 | ||
c745f55b WYG |
753 | int iwl_get_free_ucode_key_offset(struct iwl_priv *priv) |
754 | { | |
755 | int i; | |
756 | ||
757 | for (i = 0; i < priv->sta_key_max_num; i++) | |
758 | if (!test_and_set_bit(i, &priv->ucode_key_table)) | |
759 | return i; | |
760 | ||
761 | return WEP_INVALID_OFFSET; | |
762 | } | |
763 | ||
764 | void iwl_dealloc_bcast_stations(struct iwl_priv *priv) | |
765 | { | |
c745f55b WYG |
766 | int i; |
767 | ||
fa23cb04 | 768 | spin_lock_bh(&priv->sta_lock); |
c745f55b WYG |
769 | for (i = 0; i < IWLAGN_STATION_COUNT; i++) { |
770 | if (!(priv->stations[i].used & IWL_STA_BCAST)) | |
771 | continue; | |
772 | ||
773 | priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE; | |
774 | priv->num_stations--; | |
775 | if (WARN_ON(priv->num_stations < 0)) | |
776 | priv->num_stations = 0; | |
777 | kfree(priv->stations[i].lq); | |
778 | priv->stations[i].lq = NULL; | |
779 | } | |
fa23cb04 | 780 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
781 | } |
782 | ||
783 | #ifdef CONFIG_IWLWIFI_DEBUG | |
784 | static void iwl_dump_lq_cmd(struct iwl_priv *priv, | |
785 | struct iwl_link_quality_cmd *lq) | |
786 | { | |
787 | int i; | |
788 | IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id); | |
789 | IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n", | |
790 | lq->general_params.single_stream_ant_msk, | |
791 | lq->general_params.dual_stream_ant_msk); | |
792 | ||
793 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) | |
794 | IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n", | |
795 | i, lq->rs_table[i].rate_n_flags); | |
796 | } | |
797 | #else | |
798 | static inline void iwl_dump_lq_cmd(struct iwl_priv *priv, | |
799 | struct iwl_link_quality_cmd *lq) | |
800 | { | |
801 | } | |
802 | #endif | |
803 | ||
804 | /** | |
805 | * is_lq_table_valid() - Test one aspect of LQ cmd for validity | |
806 | * | |
807 | * It sometimes happens when a HT rate has been in use and we | |
808 | * loose connectivity with AP then mac80211 will first tell us that the | |
809 | * current channel is not HT anymore before removing the station. In such a | |
810 | * scenario the RXON flags will be updated to indicate we are not | |
811 | * communicating HT anymore, but the LQ command may still contain HT rates. | |
812 | * Test for this to prevent driver from sending LQ command between the time | |
813 | * RXON flags are updated and when LQ command is updated. | |
814 | */ | |
815 | static bool is_lq_table_valid(struct iwl_priv *priv, | |
816 | struct iwl_rxon_context *ctx, | |
817 | struct iwl_link_quality_cmd *lq) | |
818 | { | |
819 | int i; | |
820 | ||
821 | if (ctx->ht.enabled) | |
822 | return true; | |
823 | ||
824 | IWL_DEBUG_INFO(priv, "Channel %u is not an HT channel\n", | |
825 | ctx->active.channel); | |
826 | for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { | |
827 | if (le32_to_cpu(lq->rs_table[i].rate_n_flags) & | |
828 | RATE_MCS_HT_MSK) { | |
829 | IWL_DEBUG_INFO(priv, | |
830 | "index %d of LQ expects HT channel\n", | |
831 | i); | |
832 | return false; | |
833 | } | |
834 | } | |
835 | return true; | |
836 | } | |
837 | ||
838 | /** | |
839 | * iwl_send_lq_cmd() - Send link quality command | |
840 | * @init: This command is sent as part of station initialization right | |
841 | * after station has been added. | |
842 | * | |
843 | * The link quality command is sent as the last step of station creation. | |
844 | * This is the special case in which init is set and we call a callback in | |
845 | * this case to clear the state indicating that station creation is in | |
846 | * progress. | |
847 | */ | |
848 | int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx, | |
849 | struct iwl_link_quality_cmd *lq, u8 flags, bool init) | |
850 | { | |
851 | int ret = 0; | |
c745f55b WYG |
852 | struct iwl_host_cmd cmd = { |
853 | .id = REPLY_TX_LINK_QUALITY_CMD, | |
854 | .len = { sizeof(struct iwl_link_quality_cmd), }, | |
855 | .flags = flags, | |
856 | .data = { lq, }, | |
857 | }; | |
858 | ||
859 | if (WARN_ON(lq->sta_id == IWL_INVALID_STATION)) | |
860 | return -EINVAL; | |
861 | ||
862 | ||
fa23cb04 | 863 | spin_lock_bh(&priv->sta_lock); |
c745f55b | 864 | if (!(priv->stations[lq->sta_id].used & IWL_STA_DRIVER_ACTIVE)) { |
fa23cb04 | 865 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
866 | return -EINVAL; |
867 | } | |
fa23cb04 | 868 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
869 | |
870 | iwl_dump_lq_cmd(priv, lq); | |
871 | if (WARN_ON(init && (cmd.flags & CMD_ASYNC))) | |
872 | return -EINVAL; | |
873 | ||
874 | if (is_lq_table_valid(priv, ctx, lq)) | |
e10a0533 | 875 | ret = iwl_dvm_send_cmd(priv, &cmd); |
c745f55b WYG |
876 | else |
877 | ret = -EINVAL; | |
878 | ||
879 | if (cmd.flags & CMD_ASYNC) | |
880 | return ret; | |
881 | ||
882 | if (init) { | |
883 | IWL_DEBUG_INFO(priv, "init LQ command complete, " | |
884 | "clearing sta addition status for sta %d\n", | |
885 | lq->sta_id); | |
fa23cb04 | 886 | spin_lock_bh(&priv->sta_lock); |
c745f55b | 887 | priv->stations[lq->sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; |
fa23cb04 | 888 | spin_unlock_bh(&priv->sta_lock); |
c745f55b WYG |
889 | } |
890 | return ret; | |
891 | } | |
892 | ||
c745f55b | 893 | |
c079166e | 894 | static struct iwl_link_quality_cmd * |
c745f55b WYG |
895 | iwl_sta_alloc_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx, |
896 | u8 sta_id) | |
c079166e JB |
897 | { |
898 | struct iwl_link_quality_cmd *link_cmd; | |
899 | ||
900 | link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL); | |
901 | if (!link_cmd) { | |
902 | IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n"); | |
903 | return NULL; | |
904 | } | |
905 | ||
906 | iwl_sta_fill_lq(priv, ctx, sta_id, link_cmd); | |
a30e3112 JB |
907 | |
908 | return link_cmd; | |
909 | } | |
910 | ||
911 | /* | |
912 | * iwlagn_add_bssid_station - Add the special IBSS BSSID station | |
913 | * | |
914 | * Function sleeps. | |
915 | */ | |
c745f55b WYG |
916 | int iwlagn_add_bssid_station(struct iwl_priv *priv, |
917 | struct iwl_rxon_context *ctx, | |
a30e3112 JB |
918 | const u8 *addr, u8 *sta_id_r) |
919 | { | |
920 | int ret; | |
921 | u8 sta_id; | |
922 | struct iwl_link_quality_cmd *link_cmd; | |
a30e3112 JB |
923 | |
924 | if (sta_id_r) | |
925 | *sta_id_r = IWL_INVALID_STATION; | |
926 | ||
927 | ret = iwl_add_station_common(priv, ctx, addr, 0, NULL, &sta_id); | |
928 | if (ret) { | |
929 | IWL_ERR(priv, "Unable to add station %pM\n", addr); | |
930 | return ret; | |
931 | } | |
932 | ||
933 | if (sta_id_r) | |
934 | *sta_id_r = sta_id; | |
935 | ||
fa23cb04 | 936 | spin_lock_bh(&priv->sta_lock); |
a30e3112 | 937 | priv->stations[sta_id].used |= IWL_STA_LOCAL; |
fa23cb04 | 938 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
939 | |
940 | /* Set up default rate scaling table in device's station table */ | |
f775aa06 | 941 | link_cmd = iwl_sta_alloc_lq(priv, ctx, sta_id); |
a30e3112 | 942 | if (!link_cmd) { |
c745f55b WYG |
943 | IWL_ERR(priv, |
944 | "Unable to initialize rate scaling for station %pM.\n", | |
a30e3112 JB |
945 | addr); |
946 | return -ENOMEM; | |
947 | } | |
948 | ||
949 | ret = iwl_send_lq_cmd(priv, ctx, link_cmd, CMD_SYNC, true); | |
950 | if (ret) | |
951 | IWL_ERR(priv, "Link quality command failed (%d)\n", ret); | |
952 | ||
fa23cb04 | 953 | spin_lock_bh(&priv->sta_lock); |
a30e3112 | 954 | priv->stations[sta_id].lq = link_cmd; |
fa23cb04 | 955 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
956 | |
957 | return 0; | |
958 | } | |
959 | ||
5a3d9882 JB |
960 | /* |
961 | * static WEP keys | |
962 | * | |
963 | * For each context, the device has a table of 4 static WEP keys | |
964 | * (one for each key index) that is updated with the following | |
965 | * commands. | |
966 | */ | |
967 | ||
a30e3112 JB |
968 | static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, |
969 | struct iwl_rxon_context *ctx, | |
970 | bool send_if_empty) | |
971 | { | |
972 | int i, not_empty = 0; | |
973 | u8 buff[sizeof(struct iwl_wep_cmd) + | |
974 | sizeof(struct iwl_wep_key) * WEP_KEYS_MAX]; | |
975 | struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff; | |
976 | size_t cmd_size = sizeof(struct iwl_wep_cmd); | |
977 | struct iwl_host_cmd cmd = { | |
978 | .id = ctx->wep_key_cmd, | |
3fa50738 | 979 | .data = { wep_cmd, }, |
a30e3112 JB |
980 | .flags = CMD_SYNC, |
981 | }; | |
982 | ||
983 | might_sleep(); | |
984 | ||
985 | memset(wep_cmd, 0, cmd_size + | |
986 | (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX)); | |
987 | ||
988 | for (i = 0; i < WEP_KEYS_MAX ; i++) { | |
989 | wep_cmd->key[i].key_index = i; | |
990 | if (ctx->wep_keys[i].key_size) { | |
991 | wep_cmd->key[i].key_offset = i; | |
992 | not_empty = 1; | |
993 | } else { | |
994 | wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET; | |
995 | } | |
996 | ||
997 | wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size; | |
998 | memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key, | |
999 | ctx->wep_keys[i].key_size); | |
1000 | } | |
1001 | ||
1002 | wep_cmd->global_key_type = WEP_KEY_WEP_TYPE; | |
1003 | wep_cmd->num_keys = WEP_KEYS_MAX; | |
1004 | ||
1005 | cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX; | |
1006 | ||
3fa50738 | 1007 | cmd.len[0] = cmd_size; |
a30e3112 JB |
1008 | |
1009 | if (not_empty || send_if_empty) | |
e10a0533 | 1010 | return iwl_dvm_send_cmd(priv, &cmd); |
a30e3112 JB |
1011 | else |
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | int iwl_restore_default_wep_keys(struct iwl_priv *priv, | |
1016 | struct iwl_rxon_context *ctx) | |
1017 | { | |
b1eea297 | 1018 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1019 | |
1020 | return iwl_send_static_wepkey_cmd(priv, ctx, false); | |
1021 | } | |
1022 | ||
1023 | int iwl_remove_default_wep_key(struct iwl_priv *priv, | |
1024 | struct iwl_rxon_context *ctx, | |
1025 | struct ieee80211_key_conf *keyconf) | |
1026 | { | |
1027 | int ret; | |
1028 | ||
b1eea297 | 1029 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1030 | |
1031 | IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n", | |
1032 | keyconf->keyidx); | |
1033 | ||
1034 | memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0])); | |
83626404 | 1035 | if (iwl_is_rfkill(priv)) { |
c745f55b WYG |
1036 | IWL_DEBUG_WEP(priv, |
1037 | "Not sending REPLY_WEPKEY command due to RFKILL.\n"); | |
a30e3112 JB |
1038 | /* but keys in device are clear anyway so return success */ |
1039 | return 0; | |
1040 | } | |
1041 | ret = iwl_send_static_wepkey_cmd(priv, ctx, 1); | |
1042 | IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n", | |
1043 | keyconf->keyidx, ret); | |
1044 | ||
1045 | return ret; | |
1046 | } | |
1047 | ||
1048 | int iwl_set_default_wep_key(struct iwl_priv *priv, | |
1049 | struct iwl_rxon_context *ctx, | |
1050 | struct ieee80211_key_conf *keyconf) | |
1051 | { | |
1052 | int ret; | |
1053 | ||
b1eea297 | 1054 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1055 | |
1056 | if (keyconf->keylen != WEP_KEY_LEN_128 && | |
1057 | keyconf->keylen != WEP_KEY_LEN_64) { | |
c745f55b WYG |
1058 | IWL_DEBUG_WEP(priv, |
1059 | "Bad WEP key length %d\n", keyconf->keylen); | |
a30e3112 JB |
1060 | return -EINVAL; |
1061 | } | |
1062 | ||
5a3d9882 | 1063 | keyconf->hw_key_idx = IWLAGN_HW_KEY_DEFAULT; |
a30e3112 JB |
1064 | |
1065 | ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen; | |
1066 | memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key, | |
1067 | keyconf->keylen); | |
1068 | ||
1069 | ret = iwl_send_static_wepkey_cmd(priv, ctx, false); | |
1070 | IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n", | |
1071 | keyconf->keylen, keyconf->keyidx, ret); | |
1072 | ||
1073 | return ret; | |
1074 | } | |
1075 | ||
5a3d9882 JB |
1076 | /* |
1077 | * dynamic (per-station) keys | |
1078 | * | |
1079 | * The dynamic keys are a little more complicated. The device has | |
1080 | * a key cache of up to STA_KEY_MAX_NUM/STA_KEY_MAX_NUM_PAN keys. | |
1081 | * These are linked to stations by a table that contains an index | |
1082 | * into the key table for each station/key index/{mcast,unicast}, | |
1083 | * i.e. it's basically an array of pointers like this: | |
1084 | * key_offset_t key_mapping[NUM_STATIONS][4][2]; | |
1085 | * (it really works differently, but you can think of it as such) | |
1086 | * | |
1087 | * The key uploading and linking happens in the same command, the | |
1088 | * add station command with STA_MODIFY_KEY_MASK. | |
1089 | */ | |
a30e3112 | 1090 | |
5a3d9882 JB |
1091 | static u8 iwlagn_key_sta_id(struct iwl_priv *priv, |
1092 | struct ieee80211_vif *vif, | |
1093 | struct ieee80211_sta *sta) | |
1094 | { | |
1095 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; | |
5a3d9882 JB |
1096 | |
1097 | if (sta) | |
40e4e686 | 1098 | return iwl_sta_id(sta); |
5a3d9882 JB |
1099 | |
1100 | /* | |
1101 | * The device expects GTKs for station interfaces to be | |
1102 | * installed as GTKs for the AP station. If we have no | |
1103 | * station ID, then use the ap_sta_id in that case. | |
1104 | */ | |
40e4e686 JB |
1105 | if (vif->type == NL80211_IFTYPE_STATION && vif_priv->ctx) |
1106 | return vif_priv->ctx->ap_sta_id; | |
a30e3112 | 1107 | |
40e4e686 | 1108 | return IWL_INVALID_STATION; |
a30e3112 JB |
1109 | } |
1110 | ||
e1b1c087 JB |
1111 | static int iwlagn_send_sta_key(struct iwl_priv *priv, |
1112 | struct ieee80211_key_conf *keyconf, | |
1113 | u8 sta_id, u32 tkip_iv32, u16 *tkip_p1k, | |
1114 | u32 cmd_flags) | |
a30e3112 | 1115 | { |
5a3d9882 | 1116 | __le16 key_flags; |
a30e3112 | 1117 | struct iwl_addsta_cmd sta_cmd; |
5a3d9882 | 1118 | int i; |
e1b1c087 | 1119 | |
fa23cb04 | 1120 | spin_lock_bh(&priv->sta_lock); |
5a3d9882 | 1121 | memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(sta_cmd)); |
fa23cb04 | 1122 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 | 1123 | |
5a3d9882 JB |
1124 | key_flags = cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
1125 | key_flags |= STA_KEY_FLG_MAP_KEY_MSK; | |
a30e3112 | 1126 | |
5a3d9882 JB |
1127 | switch (keyconf->cipher) { |
1128 | case WLAN_CIPHER_SUITE_CCMP: | |
1129 | key_flags |= STA_KEY_FLG_CCMP; | |
1130 | memcpy(sta_cmd.key.key, keyconf->key, keyconf->keylen); | |
1131 | break; | |
1132 | case WLAN_CIPHER_SUITE_TKIP: | |
1133 | key_flags |= STA_KEY_FLG_TKIP; | |
1134 | sta_cmd.key.tkip_rx_tsc_byte2 = tkip_iv32; | |
1135 | for (i = 0; i < 5; i++) | |
1136 | sta_cmd.key.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]); | |
1137 | memcpy(sta_cmd.key.key, keyconf->key, keyconf->keylen); | |
1138 | break; | |
1139 | case WLAN_CIPHER_SUITE_WEP104: | |
1140 | key_flags |= STA_KEY_FLG_KEY_SIZE_MSK; | |
1141 | /* fall through */ | |
1142 | case WLAN_CIPHER_SUITE_WEP40: | |
1143 | key_flags |= STA_KEY_FLG_WEP; | |
1144 | memcpy(&sta_cmd.key.key[3], keyconf->key, keyconf->keylen); | |
1145 | break; | |
1146 | default: | |
1147 | WARN_ON(1); | |
1148 | return -EINVAL; | |
1149 | } | |
a30e3112 | 1150 | |
5a3d9882 | 1151 | if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) |
a30e3112 JB |
1152 | key_flags |= STA_KEY_MULTICAST_MSK; |
1153 | ||
5a3d9882 JB |
1154 | /* key pointer (offset) */ |
1155 | sta_cmd.key.key_offset = keyconf->hw_key_idx; | |
a30e3112 | 1156 | |
5a3d9882 JB |
1157 | sta_cmd.key.key_flags = key_flags; |
1158 | sta_cmd.mode = STA_CONTROL_MODIFY_MSK; | |
1159 | sta_cmd.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
a30e3112 | 1160 | |
5a3d9882 | 1161 | return iwl_send_add_sta(priv, &sta_cmd, cmd_flags); |
a30e3112 JB |
1162 | } |
1163 | ||
1164 | void iwl_update_tkip_key(struct iwl_priv *priv, | |
5a3d9882 | 1165 | struct ieee80211_vif *vif, |
a30e3112 JB |
1166 | struct ieee80211_key_conf *keyconf, |
1167 | struct ieee80211_sta *sta, u32 iv32, u16 *phase1key) | |
1168 | { | |
5a3d9882 JB |
1169 | u8 sta_id = iwlagn_key_sta_id(priv, vif, sta); |
1170 | ||
1171 | if (sta_id == IWL_INVALID_STATION) | |
1172 | return; | |
a30e3112 JB |
1173 | |
1174 | if (iwl_scan_cancel(priv)) { | |
1175 | /* cancel scan failed, just live w/ bad key and rely | |
1176 | briefly on SW decryption */ | |
1177 | return; | |
1178 | } | |
1179 | ||
e1b1c087 JB |
1180 | iwlagn_send_sta_key(priv, keyconf, sta_id, |
1181 | iv32, phase1key, CMD_ASYNC); | |
a30e3112 JB |
1182 | } |
1183 | ||
1184 | int iwl_remove_dynamic_key(struct iwl_priv *priv, | |
1185 | struct iwl_rxon_context *ctx, | |
1186 | struct ieee80211_key_conf *keyconf, | |
5a3d9882 | 1187 | struct ieee80211_sta *sta) |
a30e3112 | 1188 | { |
a30e3112 | 1189 | struct iwl_addsta_cmd sta_cmd; |
5a3d9882 | 1190 | u8 sta_id = iwlagn_key_sta_id(priv, ctx->vif, sta); |
5dcbf480 | 1191 | __le16 key_flags; |
5a3d9882 JB |
1192 | |
1193 | /* if station isn't there, neither is the key */ | |
1194 | if (sta_id == IWL_INVALID_STATION) | |
1195 | return -ENOENT; | |
1196 | ||
fa23cb04 | 1197 | spin_lock_bh(&priv->sta_lock); |
5a3d9882 JB |
1198 | memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(sta_cmd)); |
1199 | if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) | |
1200 | sta_id = IWL_INVALID_STATION; | |
fa23cb04 | 1201 | spin_unlock_bh(&priv->sta_lock); |
5a3d9882 JB |
1202 | |
1203 | if (sta_id == IWL_INVALID_STATION) | |
1204 | return 0; | |
a30e3112 | 1205 | |
b1eea297 | 1206 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1207 | |
1208 | ctx->key_mapping_keys--; | |
1209 | ||
a30e3112 JB |
1210 | IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n", |
1211 | keyconf->keyidx, sta_id); | |
1212 | ||
5a3d9882 JB |
1213 | if (!test_and_clear_bit(keyconf->hw_key_idx, &priv->ucode_key_table)) |
1214 | IWL_ERR(priv, "offset %d not used in uCode key table.\n", | |
1215 | keyconf->hw_key_idx); | |
a30e3112 | 1216 | |
5dcbf480 JB |
1217 | key_flags = cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); |
1218 | key_flags |= STA_KEY_FLG_MAP_KEY_MSK | STA_KEY_FLG_NO_ENC | | |
1219 | STA_KEY_FLG_INVALID; | |
1220 | ||
1221 | if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) | |
1222 | key_flags |= STA_KEY_MULTICAST_MSK; | |
1223 | ||
1224 | sta_cmd.key.key_flags = key_flags; | |
5a3d9882 JB |
1225 | sta_cmd.key.key_offset = WEP_INVALID_OFFSET; |
1226 | sta_cmd.sta.modify_mask = STA_MODIFY_KEY_MASK; | |
1227 | sta_cmd.mode = STA_CONTROL_MODIFY_MSK; | |
a30e3112 JB |
1228 | |
1229 | return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); | |
1230 | } | |
1231 | ||
5a3d9882 JB |
1232 | int iwl_set_dynamic_key(struct iwl_priv *priv, |
1233 | struct iwl_rxon_context *ctx, | |
1234 | struct ieee80211_key_conf *keyconf, | |
1235 | struct ieee80211_sta *sta) | |
a30e3112 | 1236 | { |
5a3d9882 JB |
1237 | struct ieee80211_key_seq seq; |
1238 | u16 p1k[5]; | |
a30e3112 | 1239 | int ret; |
5a3d9882 JB |
1240 | u8 sta_id = iwlagn_key_sta_id(priv, ctx->vif, sta); |
1241 | const u8 *addr; | |
1242 | ||
1243 | if (sta_id == IWL_INVALID_STATION) | |
1244 | return -EINVAL; | |
a30e3112 | 1245 | |
b1eea297 | 1246 | lockdep_assert_held(&priv->mutex); |
a30e3112 | 1247 | |
5a3d9882 JB |
1248 | keyconf->hw_key_idx = iwl_get_free_ucode_key_offset(priv); |
1249 | if (keyconf->hw_key_idx == WEP_INVALID_OFFSET) | |
1250 | return -ENOSPC; | |
1251 | ||
a30e3112 | 1252 | ctx->key_mapping_keys++; |
a30e3112 JB |
1253 | |
1254 | switch (keyconf->cipher) { | |
a30e3112 | 1255 | case WLAN_CIPHER_SUITE_TKIP: |
5a3d9882 JB |
1256 | if (sta) |
1257 | addr = sta->addr; | |
1258 | else /* station mode case only */ | |
1259 | addr = ctx->active.bssid_addr; | |
1260 | ||
1261 | /* pre-fill phase 1 key into device cache */ | |
1262 | ieee80211_get_key_rx_seq(keyconf, 0, &seq); | |
1263 | ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); | |
e1b1c087 JB |
1264 | ret = iwlagn_send_sta_key(priv, keyconf, sta_id, |
1265 | seq.tkip.iv32, p1k, CMD_SYNC); | |
a30e3112 | 1266 | break; |
5a3d9882 | 1267 | case WLAN_CIPHER_SUITE_CCMP: |
a30e3112 JB |
1268 | case WLAN_CIPHER_SUITE_WEP40: |
1269 | case WLAN_CIPHER_SUITE_WEP104: | |
e1b1c087 JB |
1270 | ret = iwlagn_send_sta_key(priv, keyconf, sta_id, |
1271 | 0, NULL, CMD_SYNC); | |
a30e3112 JB |
1272 | break; |
1273 | default: | |
5a3d9882 | 1274 | IWL_ERR(priv, "Unknown cipher %x\n", keyconf->cipher); |
a30e3112 JB |
1275 | ret = -EINVAL; |
1276 | } | |
1277 | ||
5a3d9882 JB |
1278 | if (ret) { |
1279 | ctx->key_mapping_keys--; | |
1280 | clear_bit(keyconf->hw_key_idx, &priv->ucode_key_table); | |
1281 | } | |
1282 | ||
1283 | IWL_DEBUG_WEP(priv, "Set dynamic key: cipher=%x len=%d idx=%d sta=%pM ret=%d\n", | |
a30e3112 | 1284 | keyconf->cipher, keyconf->keylen, keyconf->keyidx, |
5a3d9882 | 1285 | sta ? sta->addr : NULL, ret); |
a30e3112 JB |
1286 | |
1287 | return ret; | |
1288 | } | |
1289 | ||
1290 | /** | |
1291 | * iwlagn_alloc_bcast_station - add broadcast station into driver's station table. | |
1292 | * | |
1293 | * This adds the broadcast station into the driver's station table | |
1294 | * and marks it driver active, so that it will be restored to the | |
1295 | * device at the next best time. | |
1296 | */ | |
1297 | int iwlagn_alloc_bcast_station(struct iwl_priv *priv, | |
1298 | struct iwl_rxon_context *ctx) | |
1299 | { | |
1300 | struct iwl_link_quality_cmd *link_cmd; | |
a30e3112 JB |
1301 | u8 sta_id; |
1302 | ||
fa23cb04 | 1303 | spin_lock_bh(&priv->sta_lock); |
a30e3112 JB |
1304 | sta_id = iwl_prep_station(priv, ctx, iwl_bcast_addr, false, NULL); |
1305 | if (sta_id == IWL_INVALID_STATION) { | |
1306 | IWL_ERR(priv, "Unable to prepare broadcast station\n"); | |
fa23cb04 | 1307 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
1308 | |
1309 | return -EINVAL; | |
1310 | } | |
1311 | ||
1312 | priv->stations[sta_id].used |= IWL_STA_DRIVER_ACTIVE; | |
1313 | priv->stations[sta_id].used |= IWL_STA_BCAST; | |
fa23cb04 | 1314 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 | 1315 | |
f775aa06 | 1316 | link_cmd = iwl_sta_alloc_lq(priv, ctx, sta_id); |
a30e3112 JB |
1317 | if (!link_cmd) { |
1318 | IWL_ERR(priv, | |
1319 | "Unable to initialize rate scaling for bcast station.\n"); | |
1320 | return -ENOMEM; | |
1321 | } | |
1322 | ||
fa23cb04 | 1323 | spin_lock_bh(&priv->sta_lock); |
a30e3112 | 1324 | priv->stations[sta_id].lq = link_cmd; |
fa23cb04 | 1325 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
1326 | |
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | /** | |
1331 | * iwl_update_bcast_station - update broadcast station's LQ command | |
1332 | * | |
1333 | * Only used by iwlagn. Placed here to have all bcast station management | |
1334 | * code together. | |
1335 | */ | |
f775aa06 JB |
1336 | int iwl_update_bcast_station(struct iwl_priv *priv, |
1337 | struct iwl_rxon_context *ctx) | |
a30e3112 | 1338 | { |
a30e3112 JB |
1339 | struct iwl_link_quality_cmd *link_cmd; |
1340 | u8 sta_id = ctx->bcast_sta_id; | |
1341 | ||
f775aa06 | 1342 | link_cmd = iwl_sta_alloc_lq(priv, ctx, sta_id); |
a30e3112 JB |
1343 | if (!link_cmd) { |
1344 | IWL_ERR(priv, "Unable to initialize rate scaling for bcast station.\n"); | |
1345 | return -ENOMEM; | |
1346 | } | |
1347 | ||
fa23cb04 | 1348 | spin_lock_bh(&priv->sta_lock); |
a30e3112 JB |
1349 | if (priv->stations[sta_id].lq) |
1350 | kfree(priv->stations[sta_id].lq); | |
1351 | else | |
1352 | IWL_DEBUG_INFO(priv, "Bcast station rate scaling has not been initialized yet.\n"); | |
1353 | priv->stations[sta_id].lq = link_cmd; | |
fa23cb04 | 1354 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
1355 | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | int iwl_update_bcast_stations(struct iwl_priv *priv) | |
1360 | { | |
1361 | struct iwl_rxon_context *ctx; | |
1362 | int ret = 0; | |
1363 | ||
1364 | for_each_context(priv, ctx) { | |
1365 | ret = iwl_update_bcast_station(priv, ctx); | |
1366 | if (ret) | |
1367 | break; | |
1368 | } | |
1369 | ||
1370 | return ret; | |
1371 | } | |
1372 | ||
1373 | /** | |
1374 | * iwl_sta_tx_modify_enable_tid - Enable Tx for this TID in station table | |
1375 | */ | |
1376 | int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) | |
1377 | { | |
a30e3112 JB |
1378 | struct iwl_addsta_cmd sta_cmd; |
1379 | ||
b1eea297 | 1380 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1381 | |
1382 | /* Remove "disable" flag, to enable Tx for this TID */ | |
fa23cb04 | 1383 | spin_lock_bh(&priv->sta_lock); |
a30e3112 JB |
1384 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX; |
1385 | priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid)); | |
1386 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1387 | memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); | |
fa23cb04 | 1388 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
1389 | |
1390 | return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); | |
1391 | } | |
1392 | ||
1393 | int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, | |
1394 | int tid, u16 ssn) | |
1395 | { | |
a30e3112 JB |
1396 | int sta_id; |
1397 | struct iwl_addsta_cmd sta_cmd; | |
1398 | ||
b1eea297 | 1399 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1400 | |
1401 | sta_id = iwl_sta_id(sta); | |
1402 | if (sta_id == IWL_INVALID_STATION) | |
1403 | return -ENXIO; | |
1404 | ||
fa23cb04 | 1405 | spin_lock_bh(&priv->sta_lock); |
a30e3112 JB |
1406 | priv->stations[sta_id].sta.station_flags_msk = 0; |
1407 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK; | |
1408 | priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid; | |
1409 | priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn); | |
1410 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1411 | memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); | |
fa23cb04 | 1412 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
1413 | |
1414 | return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); | |
1415 | } | |
1416 | ||
1417 | int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, | |
1418 | int tid) | |
1419 | { | |
a30e3112 JB |
1420 | int sta_id; |
1421 | struct iwl_addsta_cmd sta_cmd; | |
1422 | ||
b1eea297 | 1423 | lockdep_assert_held(&priv->mutex); |
a30e3112 JB |
1424 | |
1425 | sta_id = iwl_sta_id(sta); | |
1426 | if (sta_id == IWL_INVALID_STATION) { | |
1427 | IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid); | |
1428 | return -ENXIO; | |
1429 | } | |
1430 | ||
fa23cb04 | 1431 | spin_lock_bh(&priv->sta_lock); |
a30e3112 JB |
1432 | priv->stations[sta_id].sta.station_flags_msk = 0; |
1433 | priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK; | |
1434 | priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid; | |
1435 | priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK; | |
1436 | memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); | |
fa23cb04 | 1437 | spin_unlock_bh(&priv->sta_lock); |
a30e3112 JB |
1438 | |
1439 | return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); | |
1440 | } | |
1441 | ||
a30e3112 | 1442 | |
a30e3112 JB |
1443 | |
1444 | void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt) | |
1445 | { | |
9451ca1a JB |
1446 | struct iwl_addsta_cmd cmd = { |
1447 | .mode = STA_CONTROL_MODIFY_MSK, | |
1448 | .station_flags = STA_FLG_PWR_SAVE_MSK, | |
1449 | .station_flags_msk = STA_FLG_PWR_SAVE_MSK, | |
1450 | .sta.sta_id = sta_id, | |
1451 | .sta.modify_mask = STA_MODIFY_SLEEP_TX_COUNT_MSK, | |
1452 | .sleep_tx_count = cpu_to_le16(cnt), | |
1453 | }; | |
a30e3112 | 1454 | |
9451ca1a | 1455 | iwl_send_add_sta(priv, &cmd, CMD_ASYNC); |
a30e3112 | 1456 | } |