Commit | Line | Data |
---|---|---|
5e6e3a92 BZ |
1 | /* |
2 | * Marvell Wireless LAN device driver: utility functions | |
3 | * | |
65da33f5 | 4 | * Copyright (C) 2011-2014, Marvell International Ltd. |
5e6e3a92 BZ |
5 | * |
6 | * This software file (the "File") is distributed by Marvell International | |
7 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
8 | * (the "License"). You may use, redistribute and/or modify this File in | |
9 | * accordance with the terms and conditions of the License, a copy of which | |
10 | * is available by writing to the Free Software Foundation, Inc., | |
11 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
12 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
13 | * | |
14 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
15 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
16 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
17 | * this warranty disclaimer. | |
18 | */ | |
19 | ||
20 | #include "decl.h" | |
21 | #include "ioctl.h" | |
22 | #include "util.h" | |
23 | #include "fw.h" | |
24 | #include "main.h" | |
25 | #include "wmm.h" | |
26 | #include "11n.h" | |
27 | ||
bb5097fe | 28 | static struct mwifiex_debug_data items[] = { |
c687a007 ZL |
29 | {"debug_mask", item_size(debug_mask), |
30 | item_addr(debug_mask), 1}, | |
bb5097fe XH |
31 | {"int_counter", item_size(int_counter), |
32 | item_addr(int_counter), 1}, | |
33 | {"wmm_ac_vo", item_size(packets_out[WMM_AC_VO]), | |
34 | item_addr(packets_out[WMM_AC_VO]), 1}, | |
35 | {"wmm_ac_vi", item_size(packets_out[WMM_AC_VI]), | |
36 | item_addr(packets_out[WMM_AC_VI]), 1}, | |
37 | {"wmm_ac_be", item_size(packets_out[WMM_AC_BE]), | |
38 | item_addr(packets_out[WMM_AC_BE]), 1}, | |
39 | {"wmm_ac_bk", item_size(packets_out[WMM_AC_BK]), | |
40 | item_addr(packets_out[WMM_AC_BK]), 1}, | |
41 | {"tx_buf_size", item_size(tx_buf_size), | |
42 | item_addr(tx_buf_size), 1}, | |
43 | {"curr_tx_buf_size", item_size(curr_tx_buf_size), | |
44 | item_addr(curr_tx_buf_size), 1}, | |
45 | {"ps_mode", item_size(ps_mode), | |
46 | item_addr(ps_mode), 1}, | |
47 | {"ps_state", item_size(ps_state), | |
48 | item_addr(ps_state), 1}, | |
49 | {"is_deep_sleep", item_size(is_deep_sleep), | |
50 | item_addr(is_deep_sleep), 1}, | |
51 | {"wakeup_dev_req", item_size(pm_wakeup_card_req), | |
52 | item_addr(pm_wakeup_card_req), 1}, | |
53 | {"wakeup_tries", item_size(pm_wakeup_fw_try), | |
54 | item_addr(pm_wakeup_fw_try), 1}, | |
55 | {"hs_configured", item_size(is_hs_configured), | |
56 | item_addr(is_hs_configured), 1}, | |
57 | {"hs_activated", item_size(hs_activated), | |
58 | item_addr(hs_activated), 1}, | |
59 | {"num_tx_timeout", item_size(num_tx_timeout), | |
60 | item_addr(num_tx_timeout), 1}, | |
61 | {"is_cmd_timedout", item_size(is_cmd_timedout), | |
62 | item_addr(is_cmd_timedout), 1}, | |
63 | {"timeout_cmd_id", item_size(timeout_cmd_id), | |
64 | item_addr(timeout_cmd_id), 1}, | |
65 | {"timeout_cmd_act", item_size(timeout_cmd_act), | |
66 | item_addr(timeout_cmd_act), 1}, | |
67 | {"last_cmd_id", item_size(last_cmd_id), | |
68 | item_addr(last_cmd_id), DBG_CMD_NUM}, | |
69 | {"last_cmd_act", item_size(last_cmd_act), | |
70 | item_addr(last_cmd_act), DBG_CMD_NUM}, | |
71 | {"last_cmd_index", item_size(last_cmd_index), | |
72 | item_addr(last_cmd_index), 1}, | |
73 | {"last_cmd_resp_id", item_size(last_cmd_resp_id), | |
74 | item_addr(last_cmd_resp_id), DBG_CMD_NUM}, | |
75 | {"last_cmd_resp_index", item_size(last_cmd_resp_index), | |
76 | item_addr(last_cmd_resp_index), 1}, | |
77 | {"last_event", item_size(last_event), | |
78 | item_addr(last_event), DBG_CMD_NUM}, | |
79 | {"last_event_index", item_size(last_event_index), | |
80 | item_addr(last_event_index), 1}, | |
8b7ef8b6 XH |
81 | {"last_mp_wr_bitmap", item_size(last_mp_wr_bitmap), |
82 | item_addr(last_mp_wr_bitmap), MWIFIEX_DBG_SDIO_MP_NUM}, | |
83 | {"last_mp_wr_ports", item_size(last_mp_wr_ports), | |
84 | item_addr(last_mp_wr_ports), MWIFIEX_DBG_SDIO_MP_NUM}, | |
85 | {"last_mp_wr_len", item_size(last_mp_wr_len), | |
86 | item_addr(last_mp_wr_len), MWIFIEX_DBG_SDIO_MP_NUM}, | |
87 | {"last_mp_curr_wr_port", item_size(last_mp_curr_wr_port), | |
88 | item_addr(last_mp_curr_wr_port), MWIFIEX_DBG_SDIO_MP_NUM}, | |
89 | {"last_sdio_mp_index", item_size(last_sdio_mp_index), | |
90 | item_addr(last_sdio_mp_index), 1}, | |
bb5097fe XH |
91 | {"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure), |
92 | item_addr(num_cmd_host_to_card_failure), 1}, | |
93 | {"num_cmd_sleep_cfm_fail", | |
94 | item_size(num_cmd_sleep_cfm_host_to_card_failure), | |
95 | item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1}, | |
96 | {"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure), | |
97 | item_addr(num_tx_host_to_card_failure), 1}, | |
98 | {"num_evt_deauth", item_size(num_event_deauth), | |
99 | item_addr(num_event_deauth), 1}, | |
100 | {"num_evt_disassoc", item_size(num_event_disassoc), | |
101 | item_addr(num_event_disassoc), 1}, | |
102 | {"num_evt_link_lost", item_size(num_event_link_lost), | |
103 | item_addr(num_event_link_lost), 1}, | |
104 | {"num_cmd_deauth", item_size(num_cmd_deauth), | |
105 | item_addr(num_cmd_deauth), 1}, | |
106 | {"num_cmd_assoc_ok", item_size(num_cmd_assoc_success), | |
107 | item_addr(num_cmd_assoc_success), 1}, | |
108 | {"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure), | |
109 | item_addr(num_cmd_assoc_failure), 1}, | |
110 | {"cmd_sent", item_size(cmd_sent), | |
111 | item_addr(cmd_sent), 1}, | |
112 | {"data_sent", item_size(data_sent), | |
113 | item_addr(data_sent), 1}, | |
114 | {"cmd_resp_received", item_size(cmd_resp_received), | |
115 | item_addr(cmd_resp_received), 1}, | |
116 | {"event_received", item_size(event_received), | |
117 | item_addr(event_received), 1}, | |
118 | ||
119 | /* variables defined in struct mwifiex_adapter */ | |
120 | {"cmd_pending", adapter_item_size(cmd_pending), | |
121 | adapter_item_addr(cmd_pending), 1}, | |
122 | {"tx_pending", adapter_item_size(tx_pending), | |
123 | adapter_item_addr(tx_pending), 1}, | |
124 | {"rx_pending", adapter_item_size(rx_pending), | |
125 | adapter_item_addr(rx_pending), 1}, | |
126 | }; | |
127 | ||
128 | static int num_of_items = ARRAY_SIZE(items); | |
129 | ||
5e6e3a92 BZ |
130 | /* |
131 | * Firmware initialization complete callback handler. | |
132 | * | |
133 | * This function wakes up the function waiting on the init | |
134 | * wait queue for the firmware initialization to complete. | |
135 | */ | |
136 | int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter) | |
137 | { | |
138 | ||
39875099 ZL |
139 | if (adapter->hw_status == MWIFIEX_HW_STATUS_READY) |
140 | if (adapter->if_ops.init_fw_port) | |
141 | adapter->if_ops.init_fw_port(adapter); | |
142 | ||
5e6e3a92 BZ |
143 | adapter->init_wait_q_woken = true; |
144 | wake_up_interruptible(&adapter->init_wait_q); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* | |
149 | * Firmware shutdown complete callback handler. | |
150 | * | |
151 | * This function sets the hardware status to not ready and wakes up | |
152 | * the function waiting on the init wait queue for the firmware | |
153 | * shutdown to complete. | |
154 | */ | |
155 | int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter) | |
156 | { | |
157 | adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY; | |
158 | adapter->init_wait_q_woken = true; | |
159 | wake_up_interruptible(&adapter->init_wait_q); | |
160 | return 0; | |
161 | } | |
162 | ||
163 | /* | |
600f5d90 | 164 | * This function sends init/shutdown command |
5e6e3a92 | 165 | * to firmware. |
5e6e3a92 | 166 | */ |
600f5d90 AK |
167 | int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, |
168 | u32 func_init_shutdown) | |
5e6e3a92 | 169 | { |
5e6e3a92 BZ |
170 | u16 cmd; |
171 | ||
172 | if (func_init_shutdown == MWIFIEX_FUNC_INIT) { | |
173 | cmd = HostCmd_CMD_FUNC_INIT; | |
174 | } else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) { | |
175 | cmd = HostCmd_CMD_FUNC_SHUTDOWN; | |
176 | } else { | |
acebe8c1 ZL |
177 | mwifiex_dbg(priv->adapter, ERROR, |
178 | "unsupported parameter\n"); | |
5e6e3a92 BZ |
179 | return -1; |
180 | } | |
181 | ||
fa0ecbb9 | 182 | return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true); |
5e6e3a92 | 183 | } |
600f5d90 | 184 | EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw); |
5e6e3a92 BZ |
185 | |
186 | /* | |
187 | * IOCTL request handler to set/get debug information. | |
188 | * | |
189 | * This function collates/sets the information from/to different driver | |
190 | * structures. | |
191 | */ | |
192 | int mwifiex_get_debug_info(struct mwifiex_private *priv, | |
193 | struct mwifiex_debug_info *info) | |
194 | { | |
195 | struct mwifiex_adapter *adapter = priv->adapter; | |
196 | ||
197 | if (info) { | |
c687a007 | 198 | info->debug_mask = adapter->debug_mask; |
5e6e3a92 BZ |
199 | memcpy(info->packets_out, |
200 | priv->wmm.packets_out, | |
201 | sizeof(priv->wmm.packets_out)); | |
5e3175fb | 202 | info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size; |
5e6e3a92 | 203 | info->tx_buf_size = (u32) adapter->tx_buf_size; |
c65a30f3 YAP |
204 | info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv, |
205 | info->rx_tbl); | |
206 | info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv, | |
207 | info->tx_tbl); | |
72df6310 XH |
208 | info->tdls_peer_num = mwifiex_get_tdls_list(priv, |
209 | info->tdls_list); | |
5e6e3a92 BZ |
210 | info->ps_mode = adapter->ps_mode; |
211 | info->ps_state = adapter->ps_state; | |
212 | info->is_deep_sleep = adapter->is_deep_sleep; | |
213 | info->pm_wakeup_card_req = adapter->pm_wakeup_card_req; | |
214 | info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try; | |
215 | info->is_hs_configured = adapter->is_hs_configured; | |
216 | info->hs_activated = adapter->hs_activated; | |
0c9c4a09 | 217 | info->is_cmd_timedout = adapter->is_cmd_timedout; |
5e6e3a92 | 218 | info->num_cmd_host_to_card_failure |
c65a30f3 | 219 | = adapter->dbg.num_cmd_host_to_card_failure; |
5e6e3a92 BZ |
220 | info->num_cmd_sleep_cfm_host_to_card_failure |
221 | = adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure; | |
222 | info->num_tx_host_to_card_failure | |
c65a30f3 | 223 | = adapter->dbg.num_tx_host_to_card_failure; |
5e6e3a92 BZ |
224 | info->num_event_deauth = adapter->dbg.num_event_deauth; |
225 | info->num_event_disassoc = adapter->dbg.num_event_disassoc; | |
226 | info->num_event_link_lost = adapter->dbg.num_event_link_lost; | |
227 | info->num_cmd_deauth = adapter->dbg.num_cmd_deauth; | |
228 | info->num_cmd_assoc_success = | |
c65a30f3 | 229 | adapter->dbg.num_cmd_assoc_success; |
5e6e3a92 | 230 | info->num_cmd_assoc_failure = |
c65a30f3 | 231 | adapter->dbg.num_cmd_assoc_failure; |
5e6e3a92 | 232 | info->num_tx_timeout = adapter->dbg.num_tx_timeout; |
5e6e3a92 BZ |
233 | info->timeout_cmd_id = adapter->dbg.timeout_cmd_id; |
234 | info->timeout_cmd_act = adapter->dbg.timeout_cmd_act; | |
235 | memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id, | |
236 | sizeof(adapter->dbg.last_cmd_id)); | |
237 | memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act, | |
238 | sizeof(adapter->dbg.last_cmd_act)); | |
239 | info->last_cmd_index = adapter->dbg.last_cmd_index; | |
240 | memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id, | |
241 | sizeof(adapter->dbg.last_cmd_resp_id)); | |
242 | info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index; | |
243 | memcpy(info->last_event, adapter->dbg.last_event, | |
244 | sizeof(adapter->dbg.last_event)); | |
245 | info->last_event_index = adapter->dbg.last_event_index; | |
8b7ef8b6 XH |
246 | memcpy(info->last_mp_wr_bitmap, adapter->dbg.last_mp_wr_bitmap, |
247 | sizeof(adapter->dbg.last_mp_wr_bitmap)); | |
248 | memcpy(info->last_mp_wr_ports, adapter->dbg.last_mp_wr_ports, | |
249 | sizeof(adapter->dbg.last_mp_wr_ports)); | |
250 | memcpy(info->last_mp_curr_wr_port, | |
251 | adapter->dbg.last_mp_curr_wr_port, | |
252 | sizeof(adapter->dbg.last_mp_curr_wr_port)); | |
253 | memcpy(info->last_mp_wr_len, adapter->dbg.last_mp_wr_len, | |
254 | sizeof(adapter->dbg.last_mp_wr_len)); | |
255 | info->last_sdio_mp_index = adapter->dbg.last_sdio_mp_index; | |
5e6e3a92 BZ |
256 | info->data_sent = adapter->data_sent; |
257 | info->cmd_sent = adapter->cmd_sent; | |
258 | info->cmd_resp_received = adapter->cmd_resp_received; | |
259 | } | |
260 | ||
261 | return 0; | |
262 | } | |
263 | ||
bb5097fe XH |
264 | int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf, |
265 | struct mwifiex_debug_info *info) | |
266 | { | |
267 | char *p = buf; | |
268 | struct mwifiex_debug_data *d = &items[0]; | |
269 | size_t size, addr; | |
270 | long val; | |
271 | int i, j; | |
272 | ||
273 | if (!info) | |
274 | return 0; | |
275 | ||
276 | for (i = 0; i < num_of_items; i++) { | |
277 | p += sprintf(p, "%s=", d[i].name); | |
278 | ||
279 | size = d[i].size / d[i].num; | |
280 | ||
281 | if (i < (num_of_items - 3)) | |
282 | addr = d[i].addr + (size_t)info; | |
283 | else /* The last 3 items are struct mwifiex_adapter variables */ | |
284 | addr = d[i].addr + (size_t)priv->adapter; | |
285 | ||
286 | for (j = 0; j < d[i].num; j++) { | |
287 | switch (size) { | |
288 | case 1: | |
289 | val = *((u8 *)addr); | |
290 | break; | |
291 | case 2: | |
292 | val = *((u16 *)addr); | |
293 | break; | |
294 | case 4: | |
295 | val = *((u32 *)addr); | |
296 | break; | |
297 | case 8: | |
298 | val = *((long long *)addr); | |
299 | break; | |
300 | default: | |
301 | val = -1; | |
302 | break; | |
303 | } | |
304 | ||
305 | p += sprintf(p, "%#lx ", val); | |
306 | addr += size; | |
307 | } | |
308 | ||
309 | p += sprintf(p, "\n"); | |
310 | } | |
311 | ||
312 | if (info->tx_tbl_num) { | |
313 | p += sprintf(p, "Tx BA stream table:\n"); | |
314 | for (i = 0; i < info->tx_tbl_num; i++) | |
315 | p += sprintf(p, "tid = %d, ra = %pM\n", | |
316 | info->tx_tbl[i].tid, info->tx_tbl[i].ra); | |
317 | } | |
318 | ||
319 | if (info->rx_tbl_num) { | |
320 | p += sprintf(p, "Rx reorder table:\n"); | |
321 | for (i = 0; i < info->rx_tbl_num; i++) { | |
322 | p += sprintf(p, "tid = %d, ta = %pM, ", | |
323 | info->rx_tbl[i].tid, | |
324 | info->rx_tbl[i].ta); | |
325 | p += sprintf(p, "start_win = %d, ", | |
326 | info->rx_tbl[i].start_win); | |
327 | p += sprintf(p, "win_size = %d, buffer: ", | |
328 | info->rx_tbl[i].win_size); | |
329 | ||
330 | for (j = 0; j < info->rx_tbl[i].win_size; j++) | |
331 | p += sprintf(p, "%c ", | |
332 | info->rx_tbl[i].buffer[j] ? | |
333 | '1' : '0'); | |
334 | ||
335 | p += sprintf(p, "\n"); | |
336 | } | |
337 | } | |
338 | ||
339 | if (info->tdls_peer_num) { | |
340 | p += sprintf(p, "TDLS peer table:\n"); | |
341 | for (i = 0; i < info->tdls_peer_num; i++) { | |
342 | p += sprintf(p, "peer = %pM", | |
343 | info->tdls_list[i].peer_addr); | |
344 | p += sprintf(p, "\n"); | |
345 | } | |
346 | } | |
347 | ||
348 | return p - buf; | |
349 | } | |
350 | ||
72e5aa8d AP |
351 | static int |
352 | mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len, | |
353 | struct rxpd *rx_pd) | |
354 | { | |
355 | u16 stype; | |
3e6f8a4b | 356 | u8 category, action_code, *addr2; |
72e5aa8d AP |
357 | struct ieee80211_hdr *ieee_hdr = (void *)payload; |
358 | ||
51974611 | 359 | stype = (le16_to_cpu(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE); |
72e5aa8d AP |
360 | |
361 | switch (stype) { | |
362 | case IEEE80211_STYPE_ACTION: | |
363 | category = *(payload + sizeof(struct ieee80211_hdr)); | |
3e6f8a4b AP |
364 | switch (category) { |
365 | case WLAN_CATEGORY_PUBLIC: | |
366 | action_code = *(payload + sizeof(struct ieee80211_hdr) | |
367 | + 1); | |
368 | if (action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) { | |
369 | addr2 = ieee_hdr->addr2; | |
370 | mwifiex_dbg(priv->adapter, INFO, | |
371 | "TDLS discovery response %pM nf=%d, snr=%d\n", | |
372 | addr2, rx_pd->nf, rx_pd->snr); | |
373 | mwifiex_auto_tdls_update_peer_signal(priv, | |
374 | addr2, | |
375 | rx_pd->snr, | |
376 | rx_pd->nf); | |
377 | } | |
378 | break; | |
379 | case WLAN_CATEGORY_BACK: | |
380 | /*we dont indicate BACK action frames to cfg80211*/ | |
381 | mwifiex_dbg(priv->adapter, INFO, | |
382 | "drop BACK action frames"); | |
383 | return -1; | |
384 | default: | |
acebe8c1 | 385 | mwifiex_dbg(priv->adapter, INFO, |
3e6f8a4b AP |
386 | "unknown public action frame category %d\n", |
387 | category); | |
72e5aa8d | 388 | } |
d393be3e | 389 | break; |
72e5aa8d | 390 | default: |
ec21dc4a | 391 | mwifiex_dbg(priv->adapter, INFO, |
3e6f8a4b AP |
392 | "unknown mgmt frame subtype %#x\n", stype); |
393 | return 0; | |
72e5aa8d AP |
394 | } |
395 | ||
396 | return 0; | |
397 | } | |
2dbaf751 SP |
398 | /* |
399 | * This function processes the received management packet and send it | |
400 | * to the kernel. | |
401 | */ | |
402 | int | |
f3b369e4 | 403 | mwifiex_process_mgmt_packet(struct mwifiex_private *priv, |
2dbaf751 SP |
404 | struct sk_buff *skb) |
405 | { | |
406 | struct rxpd *rx_pd; | |
2dbaf751 | 407 | u16 pkt_len; |
72e5aa8d | 408 | struct ieee80211_hdr *ieee_hdr; |
2dbaf751 SP |
409 | |
410 | if (!skb) | |
411 | return -1; | |
412 | ||
7521ce6e AP |
413 | if (!priv->mgmt_frame_mask || |
414 | priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { | |
acebe8c1 ZL |
415 | mwifiex_dbg(priv->adapter, ERROR, |
416 | "do not receive mgmt frames on uninitialized intf"); | |
7521ce6e AP |
417 | return -1; |
418 | } | |
419 | ||
2dbaf751 | 420 | rx_pd = (struct rxpd *)skb->data; |
2dbaf751 SP |
421 | |
422 | skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset)); | |
423 | skb_pull(skb, sizeof(pkt_len)); | |
424 | ||
425 | pkt_len = le16_to_cpu(rx_pd->rx_pkt_length); | |
426 | ||
72e5aa8d AP |
427 | ieee_hdr = (void *)skb->data; |
428 | if (ieee80211_is_mgmt(ieee_hdr->frame_control)) { | |
3e6f8a4b AP |
429 | if (mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr, |
430 | pkt_len, rx_pd)) | |
431 | return -1; | |
72e5aa8d | 432 | } |
2dbaf751 SP |
433 | /* Remove address4 */ |
434 | memmove(skb->data + sizeof(struct ieee80211_hdr_3addr), | |
435 | skb->data + sizeof(struct ieee80211_hdr), | |
436 | pkt_len - sizeof(struct ieee80211_hdr)); | |
437 | ||
438 | pkt_len -= ETH_ALEN + sizeof(pkt_len); | |
439 | rx_pd->rx_pkt_length = cpu_to_le16(pkt_len); | |
440 | ||
4facc34a | 441 | cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq, |
19504cf5 | 442 | CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len, |
970fdfa8 | 443 | 0); |
2dbaf751 SP |
444 | |
445 | return 0; | |
446 | } | |
447 | ||
5e6e3a92 BZ |
448 | /* |
449 | * This function processes the received packet before sending it to the | |
450 | * kernel. | |
451 | * | |
452 | * It extracts the SKB from the received buffer and sends it to kernel. | |
453 | * In case the received buffer does not contain the data in SKB format, | |
454 | * the function creates a blank SKB, fills it with the data from the | |
455 | * received buffer and then sends this new SKB to the kernel. | |
456 | */ | |
f3b369e4 | 457 | int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb) |
5e6e3a92 | 458 | { |
442f6f9b XH |
459 | struct mwifiex_sta_node *src_node; |
460 | struct ethhdr *p_ethhdr; | |
461 | ||
5e6e3a92 BZ |
462 | if (!skb) |
463 | return -1; | |
464 | ||
f49c6e81 UR |
465 | priv->stats.rx_bytes += skb->len; |
466 | priv->stats.rx_packets++; | |
467 | ||
442f6f9b XH |
468 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { |
469 | p_ethhdr = (void *)skb->data; | |
470 | src_node = mwifiex_get_sta_entry(priv, p_ethhdr->h_source); | |
471 | if (src_node) { | |
472 | src_node->stats.last_rx = jiffies; | |
473 | src_node->stats.rx_bytes += skb->len; | |
474 | src_node->stats.rx_packets++; | |
475 | } | |
476 | } | |
477 | ||
5e6e3a92 BZ |
478 | skb->dev = priv->netdev; |
479 | skb->protocol = eth_type_trans(skb, priv->netdev); | |
480 | skb->ip_summed = CHECKSUM_NONE; | |
4daffe35 | 481 | |
f553e1aa | 482 | /* This is required only in case of 11n and USB/PCIE as we alloc |
4daffe35 AK |
483 | * a buffer of 4K only if its 11N (to be able to receive 4K |
484 | * AMSDU packets). In case of SD we allocate buffers based | |
485 | * on the size of packet and hence this is not needed. | |
486 | * | |
487 | * Modifying the truesize here as our allocation for each | |
488 | * skb is 4K but we only receive 2K packets and this cause | |
489 | * the kernel to start dropping packets in case where | |
490 | * application has allocated buffer based on 2K size i.e. | |
491 | * if there a 64K packet received (in IP fragments and | |
492 | * application allocates 64K to receive this packet but | |
493 | * this packet would almost double up because we allocate | |
494 | * each 1.5K fragment in 4K and pass it up. As soon as the | |
495 | * 64K limit hits kernel will start to drop rest of the | |
496 | * fragments. Currently we fail the Filesndl-ht.scr script | |
497 | * for UDP, hence this fix | |
498 | */ | |
f553e1aa AP |
499 | if ((priv->adapter->iface_type == MWIFIEX_USB || |
500 | priv->adapter->iface_type == MWIFIEX_PCIE) && | |
4daffe35 AK |
501 | (skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE)) |
502 | skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE); | |
503 | ||
5e6e3a92 BZ |
504 | if (in_interrupt()) |
505 | netif_rx(skb); | |
506 | else | |
507 | netif_rx_ni(skb); | |
508 | ||
509 | return 0; | |
510 | } | |
511 | ||
5e6e3a92 BZ |
512 | /* |
513 | * IOCTL completion callback handler. | |
514 | * | |
515 | * This function is called when a pending IOCTL is completed. | |
516 | * | |
517 | * If work queue support is enabled, the function wakes up the | |
518 | * corresponding waiting function. Otherwise, it processes the | |
519 | * IOCTL response and frees the response buffer. | |
520 | */ | |
efaaa8b8 AK |
521 | int mwifiex_complete_cmd(struct mwifiex_adapter *adapter, |
522 | struct cmd_ctrl_node *cmd_node) | |
5e6e3a92 | 523 | { |
c5bc15fc AF |
524 | WARN_ON(!cmd_node->wait_q_enabled); |
525 | mwifiex_dbg(adapter, CMD, "cmd completed: status=%d\n", | |
acebe8c1 | 526 | adapter->cmd_wait_q.status); |
5e6e3a92 | 527 | |
c5bc15fc AF |
528 | *cmd_node->condition = true; |
529 | wake_up_interruptible(&adapter->cmd_wait_q.wait); | |
5e6e3a92 BZ |
530 | |
531 | return 0; | |
532 | } | |
4bcf93d3 AP |
533 | |
534 | /* This function will return the pointer to station entry in station list | |
535 | * table which matches specified mac address. | |
536 | * This function should be called after acquiring RA list spinlock. | |
537 | * NULL is returned if station entry is not found in associated STA list. | |
538 | */ | |
539 | struct mwifiex_sta_node * | |
3b3a0162 | 540 | mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
541 | { |
542 | struct mwifiex_sta_node *node; | |
543 | ||
544 | if (!mac) | |
545 | return NULL; | |
546 | ||
547 | list_for_each_entry(node, &priv->sta_list, list) { | |
548 | if (!memcmp(node->mac_addr, mac, ETH_ALEN)) | |
549 | return node; | |
550 | } | |
551 | ||
552 | return NULL; | |
553 | } | |
554 | ||
ba101ad5 XH |
555 | static struct mwifiex_sta_node * |
556 | mwifiex_get_tdls_sta_entry(struct mwifiex_private *priv, u8 status) | |
557 | { | |
558 | struct mwifiex_sta_node *node; | |
559 | ||
560 | list_for_each_entry(node, &priv->sta_list, list) { | |
561 | if (node->tdls_status == status) | |
562 | return node; | |
563 | } | |
564 | ||
565 | return NULL; | |
566 | } | |
567 | ||
568 | /* If tdls channel switching is on-going, tx data traffic should be | |
569 | * blocked until the switching stage completed. | |
570 | */ | |
571 | u8 mwifiex_is_tdls_chan_switching(struct mwifiex_private *priv) | |
572 | { | |
573 | struct mwifiex_sta_node *sta_ptr; | |
574 | ||
575 | if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) | |
576 | return false; | |
577 | ||
578 | sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_CHAN_SWITCHING); | |
579 | if (sta_ptr) | |
580 | return true; | |
581 | ||
582 | return false; | |
583 | } | |
584 | ||
585 | u8 mwifiex_is_tdls_off_chan(struct mwifiex_private *priv) | |
586 | { | |
587 | struct mwifiex_sta_node *sta_ptr; | |
588 | ||
589 | if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) | |
590 | return false; | |
591 | ||
592 | sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_IN_OFF_CHAN); | |
593 | if (sta_ptr) | |
594 | return true; | |
595 | ||
596 | return false; | |
597 | } | |
598 | ||
599 | /* If tdls channel switching is on-going or tdls operate on off-channel, | |
600 | * cmd path should be blocked until tdls switched to base-channel. | |
601 | */ | |
602 | u8 mwifiex_is_send_cmd_allowed(struct mwifiex_private *priv) | |
603 | { | |
604 | if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) | |
605 | return true; | |
606 | ||
607 | if (mwifiex_is_tdls_chan_switching(priv) || | |
608 | mwifiex_is_tdls_off_chan(priv)) | |
609 | return false; | |
610 | ||
611 | return true; | |
612 | } | |
613 | ||
4bcf93d3 AP |
614 | /* This function will add a sta_node entry to associated station list |
615 | * table with the given mac address. | |
616 | * If entry exist already, existing entry is returned. | |
617 | * If received mac address is NULL, NULL is returned. | |
618 | */ | |
619 | struct mwifiex_sta_node * | |
3b3a0162 | 620 | mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
621 | { |
622 | struct mwifiex_sta_node *node; | |
623 | unsigned long flags; | |
624 | ||
625 | if (!mac) | |
626 | return NULL; | |
627 | ||
628 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
629 | node = mwifiex_get_sta_entry(priv, mac); | |
630 | if (node) | |
631 | goto done; | |
632 | ||
633 | node = kzalloc(sizeof(*node), GFP_ATOMIC); | |
634 | if (!node) | |
635 | goto done; | |
636 | ||
637 | memcpy(node->mac_addr, mac, ETH_ALEN); | |
638 | list_add_tail(&node->list, &priv->sta_list); | |
639 | ||
640 | done: | |
641 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
642 | return node; | |
643 | } | |
644 | ||
645 | /* This function will search for HT IE in association request IEs | |
646 | * and set station HT parameters accordingly. | |
647 | */ | |
648 | void | |
649 | mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies, | |
650 | int ies_len, struct mwifiex_sta_node *node) | |
651 | { | |
9ab7b5b9 | 652 | struct ieee_types_header *ht_cap_ie; |
4bcf93d3 AP |
653 | const struct ieee80211_ht_cap *ht_cap; |
654 | ||
655 | if (!ies) | |
656 | return; | |
657 | ||
9ab7b5b9 ZL |
658 | ht_cap_ie = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, |
659 | ies_len); | |
660 | if (ht_cap_ie) { | |
661 | ht_cap = (void *)(ht_cap_ie + 1); | |
4bcf93d3 AP |
662 | node->is_11n_enabled = 1; |
663 | node->max_amsdu = le16_to_cpu(ht_cap->cap_info) & | |
664 | IEEE80211_HT_CAP_MAX_AMSDU ? | |
665 | MWIFIEX_TX_DATA_BUF_SIZE_8K : | |
666 | MWIFIEX_TX_DATA_BUF_SIZE_4K; | |
667 | } else { | |
668 | node->is_11n_enabled = 0; | |
669 | } | |
670 | ||
671 | return; | |
672 | } | |
673 | ||
674 | /* This function will delete a station entry from station list */ | |
3b3a0162 | 675 | void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
676 | { |
677 | struct mwifiex_sta_node *node; | |
678 | unsigned long flags; | |
679 | ||
680 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
681 | ||
682 | node = mwifiex_get_sta_entry(priv, mac); | |
683 | if (node) { | |
684 | list_del(&node->list); | |
685 | kfree(node); | |
686 | } | |
687 | ||
688 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
689 | return; | |
690 | } | |
691 | ||
692 | /* This function will delete all stations from associated station list. */ | |
693 | void mwifiex_del_all_sta_list(struct mwifiex_private *priv) | |
694 | { | |
695 | struct mwifiex_sta_node *node, *tmp; | |
696 | unsigned long flags; | |
697 | ||
698 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
699 | ||
700 | list_for_each_entry_safe(node, tmp, &priv->sta_list, list) { | |
701 | list_del(&node->list); | |
702 | kfree(node); | |
703 | } | |
704 | ||
705 | INIT_LIST_HEAD(&priv->sta_list); | |
706 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
707 | return; | |
708 | } | |
cbf6e055 XH |
709 | |
710 | /* This function adds histogram data to histogram array*/ | |
711 | void mwifiex_hist_data_add(struct mwifiex_private *priv, | |
712 | u8 rx_rate, s8 snr, s8 nflr) | |
713 | { | |
714 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
715 | ||
716 | if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES) | |
717 | mwifiex_hist_data_reset(priv); | |
718 | mwifiex_hist_data_set(priv, rx_rate, snr, nflr); | |
719 | } | |
720 | ||
721 | /* function to add histogram record */ | |
722 | void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr, | |
723 | s8 nflr) | |
724 | { | |
725 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
726 | ||
727 | atomic_inc(&phist_data->num_samples); | |
728 | atomic_inc(&phist_data->rx_rate[rx_rate]); | |
729 | atomic_inc(&phist_data->snr[snr]); | |
730 | atomic_inc(&phist_data->noise_flr[128 + nflr]); | |
731 | atomic_inc(&phist_data->sig_str[nflr - snr]); | |
732 | } | |
733 | ||
734 | /* function to reset histogram data during init/reset */ | |
735 | void mwifiex_hist_data_reset(struct mwifiex_private *priv) | |
736 | { | |
737 | int ix; | |
738 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
739 | ||
740 | atomic_set(&phist_data->num_samples, 0); | |
741 | for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++) | |
742 | atomic_set(&phist_data->rx_rate[ix], 0); | |
743 | for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++) | |
744 | atomic_set(&phist_data->snr[ix], 0); | |
745 | for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++) | |
746 | atomic_set(&phist_data->noise_flr[ix], 0); | |
747 | for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++) | |
748 | atomic_set(&phist_data->sig_str[ix], 0); | |
749 | } | |
31def91b | 750 | |
62159944 | 751 | void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags) |
31def91b AP |
752 | { |
753 | struct sk_buff *skb; | |
754 | int buf_len, pad; | |
755 | ||
756 | buf_len = rx_len + MWIFIEX_RX_HEADROOM + MWIFIEX_DMA_ALIGN_SZ; | |
757 | ||
758 | skb = __dev_alloc_skb(buf_len, flags); | |
759 | ||
760 | if (!skb) | |
761 | return NULL; | |
762 | ||
763 | skb_reserve(skb, MWIFIEX_RX_HEADROOM); | |
764 | ||
765 | pad = MWIFIEX_ALIGN_ADDR(skb->data, MWIFIEX_DMA_ALIGN_SZ) - | |
766 | (long)skb->data; | |
767 | ||
768 | skb_reserve(skb, pad); | |
769 | ||
770 | return skb; | |
771 | } | |
62159944 | 772 | EXPORT_SYMBOL_GPL(mwifiex_alloc_dma_align_buf); |