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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 | ||
5e6e3a92 | 148 | /* |
600f5d90 | 149 | * This function sends init/shutdown command |
5e6e3a92 | 150 | * to firmware. |
5e6e3a92 | 151 | */ |
600f5d90 AK |
152 | int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, |
153 | u32 func_init_shutdown) | |
5e6e3a92 | 154 | { |
5e6e3a92 BZ |
155 | u16 cmd; |
156 | ||
157 | if (func_init_shutdown == MWIFIEX_FUNC_INIT) { | |
158 | cmd = HostCmd_CMD_FUNC_INIT; | |
159 | } else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) { | |
160 | cmd = HostCmd_CMD_FUNC_SHUTDOWN; | |
161 | } else { | |
acebe8c1 ZL |
162 | mwifiex_dbg(priv->adapter, ERROR, |
163 | "unsupported parameter\n"); | |
5e6e3a92 BZ |
164 | return -1; |
165 | } | |
166 | ||
fa0ecbb9 | 167 | return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true); |
5e6e3a92 | 168 | } |
600f5d90 | 169 | EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw); |
5e6e3a92 BZ |
170 | |
171 | /* | |
172 | * IOCTL request handler to set/get debug information. | |
173 | * | |
174 | * This function collates/sets the information from/to different driver | |
175 | * structures. | |
176 | */ | |
177 | int mwifiex_get_debug_info(struct mwifiex_private *priv, | |
178 | struct mwifiex_debug_info *info) | |
179 | { | |
180 | struct mwifiex_adapter *adapter = priv->adapter; | |
181 | ||
182 | if (info) { | |
c687a007 | 183 | info->debug_mask = adapter->debug_mask; |
5e6e3a92 BZ |
184 | memcpy(info->packets_out, |
185 | priv->wmm.packets_out, | |
186 | sizeof(priv->wmm.packets_out)); | |
5e3175fb | 187 | info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size; |
5e6e3a92 | 188 | info->tx_buf_size = (u32) adapter->tx_buf_size; |
c65a30f3 YAP |
189 | info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv, |
190 | info->rx_tbl); | |
191 | info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv, | |
192 | info->tx_tbl); | |
72df6310 XH |
193 | info->tdls_peer_num = mwifiex_get_tdls_list(priv, |
194 | info->tdls_list); | |
5e6e3a92 BZ |
195 | info->ps_mode = adapter->ps_mode; |
196 | info->ps_state = adapter->ps_state; | |
197 | info->is_deep_sleep = adapter->is_deep_sleep; | |
198 | info->pm_wakeup_card_req = adapter->pm_wakeup_card_req; | |
199 | info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try; | |
200 | info->is_hs_configured = adapter->is_hs_configured; | |
201 | info->hs_activated = adapter->hs_activated; | |
0c9c4a09 | 202 | info->is_cmd_timedout = adapter->is_cmd_timedout; |
5e6e3a92 | 203 | info->num_cmd_host_to_card_failure |
c65a30f3 | 204 | = adapter->dbg.num_cmd_host_to_card_failure; |
5e6e3a92 BZ |
205 | info->num_cmd_sleep_cfm_host_to_card_failure |
206 | = adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure; | |
207 | info->num_tx_host_to_card_failure | |
c65a30f3 | 208 | = adapter->dbg.num_tx_host_to_card_failure; |
5e6e3a92 BZ |
209 | info->num_event_deauth = adapter->dbg.num_event_deauth; |
210 | info->num_event_disassoc = adapter->dbg.num_event_disassoc; | |
211 | info->num_event_link_lost = adapter->dbg.num_event_link_lost; | |
212 | info->num_cmd_deauth = adapter->dbg.num_cmd_deauth; | |
213 | info->num_cmd_assoc_success = | |
c65a30f3 | 214 | adapter->dbg.num_cmd_assoc_success; |
5e6e3a92 | 215 | info->num_cmd_assoc_failure = |
c65a30f3 | 216 | adapter->dbg.num_cmd_assoc_failure; |
5e6e3a92 | 217 | info->num_tx_timeout = adapter->dbg.num_tx_timeout; |
5e6e3a92 BZ |
218 | info->timeout_cmd_id = adapter->dbg.timeout_cmd_id; |
219 | info->timeout_cmd_act = adapter->dbg.timeout_cmd_act; | |
220 | memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id, | |
221 | sizeof(adapter->dbg.last_cmd_id)); | |
222 | memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act, | |
223 | sizeof(adapter->dbg.last_cmd_act)); | |
224 | info->last_cmd_index = adapter->dbg.last_cmd_index; | |
225 | memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id, | |
226 | sizeof(adapter->dbg.last_cmd_resp_id)); | |
227 | info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index; | |
228 | memcpy(info->last_event, adapter->dbg.last_event, | |
229 | sizeof(adapter->dbg.last_event)); | |
230 | info->last_event_index = adapter->dbg.last_event_index; | |
8b7ef8b6 XH |
231 | memcpy(info->last_mp_wr_bitmap, adapter->dbg.last_mp_wr_bitmap, |
232 | sizeof(adapter->dbg.last_mp_wr_bitmap)); | |
233 | memcpy(info->last_mp_wr_ports, adapter->dbg.last_mp_wr_ports, | |
234 | sizeof(adapter->dbg.last_mp_wr_ports)); | |
235 | memcpy(info->last_mp_curr_wr_port, | |
236 | adapter->dbg.last_mp_curr_wr_port, | |
237 | sizeof(adapter->dbg.last_mp_curr_wr_port)); | |
238 | memcpy(info->last_mp_wr_len, adapter->dbg.last_mp_wr_len, | |
239 | sizeof(adapter->dbg.last_mp_wr_len)); | |
240 | info->last_sdio_mp_index = adapter->dbg.last_sdio_mp_index; | |
5e6e3a92 BZ |
241 | info->data_sent = adapter->data_sent; |
242 | info->cmd_sent = adapter->cmd_sent; | |
243 | info->cmd_resp_received = adapter->cmd_resp_received; | |
244 | } | |
245 | ||
246 | return 0; | |
247 | } | |
248 | ||
bb5097fe XH |
249 | int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf, |
250 | struct mwifiex_debug_info *info) | |
251 | { | |
252 | char *p = buf; | |
253 | struct mwifiex_debug_data *d = &items[0]; | |
254 | size_t size, addr; | |
255 | long val; | |
256 | int i, j; | |
257 | ||
258 | if (!info) | |
259 | return 0; | |
260 | ||
261 | for (i = 0; i < num_of_items; i++) { | |
262 | p += sprintf(p, "%s=", d[i].name); | |
263 | ||
264 | size = d[i].size / d[i].num; | |
265 | ||
266 | if (i < (num_of_items - 3)) | |
267 | addr = d[i].addr + (size_t)info; | |
268 | else /* The last 3 items are struct mwifiex_adapter variables */ | |
269 | addr = d[i].addr + (size_t)priv->adapter; | |
270 | ||
271 | for (j = 0; j < d[i].num; j++) { | |
272 | switch (size) { | |
273 | case 1: | |
274 | val = *((u8 *)addr); | |
275 | break; | |
276 | case 2: | |
92c70a95 | 277 | val = get_unaligned((u16 *)addr); |
bb5097fe XH |
278 | break; |
279 | case 4: | |
92c70a95 | 280 | val = get_unaligned((u32 *)addr); |
bb5097fe XH |
281 | break; |
282 | case 8: | |
92c70a95 | 283 | val = get_unaligned((long long *)addr); |
bb5097fe XH |
284 | break; |
285 | default: | |
286 | val = -1; | |
287 | break; | |
288 | } | |
289 | ||
290 | p += sprintf(p, "%#lx ", val); | |
291 | addr += size; | |
292 | } | |
293 | ||
294 | p += sprintf(p, "\n"); | |
295 | } | |
296 | ||
297 | if (info->tx_tbl_num) { | |
298 | p += sprintf(p, "Tx BA stream table:\n"); | |
299 | for (i = 0; i < info->tx_tbl_num; i++) | |
300 | p += sprintf(p, "tid = %d, ra = %pM\n", | |
301 | info->tx_tbl[i].tid, info->tx_tbl[i].ra); | |
302 | } | |
303 | ||
304 | if (info->rx_tbl_num) { | |
305 | p += sprintf(p, "Rx reorder table:\n"); | |
306 | for (i = 0; i < info->rx_tbl_num; i++) { | |
307 | p += sprintf(p, "tid = %d, ta = %pM, ", | |
308 | info->rx_tbl[i].tid, | |
309 | info->rx_tbl[i].ta); | |
310 | p += sprintf(p, "start_win = %d, ", | |
311 | info->rx_tbl[i].start_win); | |
312 | p += sprintf(p, "win_size = %d, buffer: ", | |
313 | info->rx_tbl[i].win_size); | |
314 | ||
315 | for (j = 0; j < info->rx_tbl[i].win_size; j++) | |
316 | p += sprintf(p, "%c ", | |
317 | info->rx_tbl[i].buffer[j] ? | |
318 | '1' : '0'); | |
319 | ||
320 | p += sprintf(p, "\n"); | |
321 | } | |
322 | } | |
323 | ||
324 | if (info->tdls_peer_num) { | |
325 | p += sprintf(p, "TDLS peer table:\n"); | |
326 | for (i = 0; i < info->tdls_peer_num; i++) { | |
327 | p += sprintf(p, "peer = %pM", | |
328 | info->tdls_list[i].peer_addr); | |
329 | p += sprintf(p, "\n"); | |
330 | } | |
331 | } | |
332 | ||
333 | return p - buf; | |
334 | } | |
335 | ||
72e5aa8d AP |
336 | static int |
337 | mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len, | |
338 | struct rxpd *rx_pd) | |
339 | { | |
340 | u16 stype; | |
3e6f8a4b | 341 | u8 category, action_code, *addr2; |
72e5aa8d AP |
342 | struct ieee80211_hdr *ieee_hdr = (void *)payload; |
343 | ||
51974611 | 344 | stype = (le16_to_cpu(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE); |
72e5aa8d AP |
345 | |
346 | switch (stype) { | |
347 | case IEEE80211_STYPE_ACTION: | |
348 | category = *(payload + sizeof(struct ieee80211_hdr)); | |
3e6f8a4b AP |
349 | switch (category) { |
350 | case WLAN_CATEGORY_PUBLIC: | |
351 | action_code = *(payload + sizeof(struct ieee80211_hdr) | |
352 | + 1); | |
353 | if (action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) { | |
354 | addr2 = ieee_hdr->addr2; | |
355 | mwifiex_dbg(priv->adapter, INFO, | |
356 | "TDLS discovery response %pM nf=%d, snr=%d\n", | |
357 | addr2, rx_pd->nf, rx_pd->snr); | |
358 | mwifiex_auto_tdls_update_peer_signal(priv, | |
359 | addr2, | |
360 | rx_pd->snr, | |
361 | rx_pd->nf); | |
362 | } | |
363 | break; | |
364 | case WLAN_CATEGORY_BACK: | |
365 | /*we dont indicate BACK action frames to cfg80211*/ | |
366 | mwifiex_dbg(priv->adapter, INFO, | |
367 | "drop BACK action frames"); | |
368 | return -1; | |
369 | default: | |
acebe8c1 | 370 | mwifiex_dbg(priv->adapter, INFO, |
3e6f8a4b AP |
371 | "unknown public action frame category %d\n", |
372 | category); | |
72e5aa8d | 373 | } |
d393be3e | 374 | break; |
72e5aa8d | 375 | default: |
ec21dc4a | 376 | mwifiex_dbg(priv->adapter, INFO, |
3e6f8a4b AP |
377 | "unknown mgmt frame subtype %#x\n", stype); |
378 | return 0; | |
72e5aa8d AP |
379 | } |
380 | ||
381 | return 0; | |
382 | } | |
2dbaf751 SP |
383 | /* |
384 | * This function processes the received management packet and send it | |
385 | * to the kernel. | |
386 | */ | |
387 | int | |
f3b369e4 | 388 | mwifiex_process_mgmt_packet(struct mwifiex_private *priv, |
2dbaf751 SP |
389 | struct sk_buff *skb) |
390 | { | |
391 | struct rxpd *rx_pd; | |
2dbaf751 | 392 | u16 pkt_len; |
72e5aa8d | 393 | struct ieee80211_hdr *ieee_hdr; |
2dbaf751 SP |
394 | |
395 | if (!skb) | |
396 | return -1; | |
397 | ||
7521ce6e AP |
398 | if (!priv->mgmt_frame_mask || |
399 | priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { | |
acebe8c1 ZL |
400 | mwifiex_dbg(priv->adapter, ERROR, |
401 | "do not receive mgmt frames on uninitialized intf"); | |
7521ce6e AP |
402 | return -1; |
403 | } | |
404 | ||
2dbaf751 | 405 | rx_pd = (struct rxpd *)skb->data; |
2dbaf751 SP |
406 | |
407 | skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset)); | |
408 | skb_pull(skb, sizeof(pkt_len)); | |
409 | ||
410 | pkt_len = le16_to_cpu(rx_pd->rx_pkt_length); | |
411 | ||
72e5aa8d AP |
412 | ieee_hdr = (void *)skb->data; |
413 | if (ieee80211_is_mgmt(ieee_hdr->frame_control)) { | |
3e6f8a4b AP |
414 | if (mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr, |
415 | pkt_len, rx_pd)) | |
416 | return -1; | |
72e5aa8d | 417 | } |
2dbaf751 SP |
418 | /* Remove address4 */ |
419 | memmove(skb->data + sizeof(struct ieee80211_hdr_3addr), | |
420 | skb->data + sizeof(struct ieee80211_hdr), | |
421 | pkt_len - sizeof(struct ieee80211_hdr)); | |
422 | ||
423 | pkt_len -= ETH_ALEN + sizeof(pkt_len); | |
424 | rx_pd->rx_pkt_length = cpu_to_le16(pkt_len); | |
425 | ||
4facc34a | 426 | cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq, |
19504cf5 | 427 | CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len, |
970fdfa8 | 428 | 0); |
2dbaf751 SP |
429 | |
430 | return 0; | |
431 | } | |
432 | ||
5e6e3a92 BZ |
433 | /* |
434 | * This function processes the received packet before sending it to the | |
435 | * kernel. | |
436 | * | |
437 | * It extracts the SKB from the received buffer and sends it to kernel. | |
438 | * In case the received buffer does not contain the data in SKB format, | |
439 | * the function creates a blank SKB, fills it with the data from the | |
440 | * received buffer and then sends this new SKB to the kernel. | |
441 | */ | |
f3b369e4 | 442 | int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb) |
5e6e3a92 | 443 | { |
442f6f9b XH |
444 | struct mwifiex_sta_node *src_node; |
445 | struct ethhdr *p_ethhdr; | |
446 | ||
5e6e3a92 BZ |
447 | if (!skb) |
448 | return -1; | |
449 | ||
f49c6e81 UR |
450 | priv->stats.rx_bytes += skb->len; |
451 | priv->stats.rx_packets++; | |
452 | ||
442f6f9b XH |
453 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { |
454 | p_ethhdr = (void *)skb->data; | |
455 | src_node = mwifiex_get_sta_entry(priv, p_ethhdr->h_source); | |
456 | if (src_node) { | |
457 | src_node->stats.last_rx = jiffies; | |
458 | src_node->stats.rx_bytes += skb->len; | |
459 | src_node->stats.rx_packets++; | |
460 | } | |
461 | } | |
462 | ||
5e6e3a92 BZ |
463 | skb->dev = priv->netdev; |
464 | skb->protocol = eth_type_trans(skb, priv->netdev); | |
465 | skb->ip_summed = CHECKSUM_NONE; | |
4daffe35 | 466 | |
f553e1aa | 467 | /* This is required only in case of 11n and USB/PCIE as we alloc |
4daffe35 AK |
468 | * a buffer of 4K only if its 11N (to be able to receive 4K |
469 | * AMSDU packets). In case of SD we allocate buffers based | |
470 | * on the size of packet and hence this is not needed. | |
471 | * | |
472 | * Modifying the truesize here as our allocation for each | |
473 | * skb is 4K but we only receive 2K packets and this cause | |
474 | * the kernel to start dropping packets in case where | |
475 | * application has allocated buffer based on 2K size i.e. | |
476 | * if there a 64K packet received (in IP fragments and | |
477 | * application allocates 64K to receive this packet but | |
478 | * this packet would almost double up because we allocate | |
479 | * each 1.5K fragment in 4K and pass it up. As soon as the | |
480 | * 64K limit hits kernel will start to drop rest of the | |
481 | * fragments. Currently we fail the Filesndl-ht.scr script | |
482 | * for UDP, hence this fix | |
483 | */ | |
f553e1aa AP |
484 | if ((priv->adapter->iface_type == MWIFIEX_USB || |
485 | priv->adapter->iface_type == MWIFIEX_PCIE) && | |
4daffe35 AK |
486 | (skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE)) |
487 | skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE); | |
488 | ||
5e6e3a92 BZ |
489 | if (in_interrupt()) |
490 | netif_rx(skb); | |
491 | else | |
492 | netif_rx_ni(skb); | |
493 | ||
494 | return 0; | |
495 | } | |
496 | ||
5e6e3a92 BZ |
497 | /* |
498 | * IOCTL completion callback handler. | |
499 | * | |
500 | * This function is called when a pending IOCTL is completed. | |
501 | * | |
502 | * If work queue support is enabled, the function wakes up the | |
503 | * corresponding waiting function. Otherwise, it processes the | |
504 | * IOCTL response and frees the response buffer. | |
505 | */ | |
efaaa8b8 AK |
506 | int mwifiex_complete_cmd(struct mwifiex_adapter *adapter, |
507 | struct cmd_ctrl_node *cmd_node) | |
5e6e3a92 | 508 | { |
c5bc15fc AF |
509 | WARN_ON(!cmd_node->wait_q_enabled); |
510 | mwifiex_dbg(adapter, CMD, "cmd completed: status=%d\n", | |
acebe8c1 | 511 | adapter->cmd_wait_q.status); |
5e6e3a92 | 512 | |
c5bc15fc AF |
513 | *cmd_node->condition = true; |
514 | wake_up_interruptible(&adapter->cmd_wait_q.wait); | |
5e6e3a92 BZ |
515 | |
516 | return 0; | |
517 | } | |
4bcf93d3 AP |
518 | |
519 | /* This function will return the pointer to station entry in station list | |
520 | * table which matches specified mac address. | |
521 | * This function should be called after acquiring RA list spinlock. | |
522 | * NULL is returned if station entry is not found in associated STA list. | |
523 | */ | |
524 | struct mwifiex_sta_node * | |
3b3a0162 | 525 | mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
526 | { |
527 | struct mwifiex_sta_node *node; | |
528 | ||
529 | if (!mac) | |
530 | return NULL; | |
531 | ||
532 | list_for_each_entry(node, &priv->sta_list, list) { | |
533 | if (!memcmp(node->mac_addr, mac, ETH_ALEN)) | |
534 | return node; | |
535 | } | |
536 | ||
537 | return NULL; | |
538 | } | |
539 | ||
ba101ad5 XH |
540 | static struct mwifiex_sta_node * |
541 | mwifiex_get_tdls_sta_entry(struct mwifiex_private *priv, u8 status) | |
542 | { | |
543 | struct mwifiex_sta_node *node; | |
544 | ||
545 | list_for_each_entry(node, &priv->sta_list, list) { | |
546 | if (node->tdls_status == status) | |
547 | return node; | |
548 | } | |
549 | ||
550 | return NULL; | |
551 | } | |
552 | ||
553 | /* If tdls channel switching is on-going, tx data traffic should be | |
554 | * blocked until the switching stage completed. | |
555 | */ | |
556 | u8 mwifiex_is_tdls_chan_switching(struct mwifiex_private *priv) | |
557 | { | |
558 | struct mwifiex_sta_node *sta_ptr; | |
559 | ||
560 | if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) | |
561 | return false; | |
562 | ||
563 | sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_CHAN_SWITCHING); | |
564 | if (sta_ptr) | |
565 | return true; | |
566 | ||
567 | return false; | |
568 | } | |
569 | ||
570 | u8 mwifiex_is_tdls_off_chan(struct mwifiex_private *priv) | |
571 | { | |
572 | struct mwifiex_sta_node *sta_ptr; | |
573 | ||
574 | if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) | |
575 | return false; | |
576 | ||
577 | sta_ptr = mwifiex_get_tdls_sta_entry(priv, TDLS_IN_OFF_CHAN); | |
578 | if (sta_ptr) | |
579 | return true; | |
580 | ||
581 | return false; | |
582 | } | |
583 | ||
584 | /* If tdls channel switching is on-going or tdls operate on off-channel, | |
585 | * cmd path should be blocked until tdls switched to base-channel. | |
586 | */ | |
587 | u8 mwifiex_is_send_cmd_allowed(struct mwifiex_private *priv) | |
588 | { | |
589 | if (!priv || !ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) | |
590 | return true; | |
591 | ||
592 | if (mwifiex_is_tdls_chan_switching(priv) || | |
593 | mwifiex_is_tdls_off_chan(priv)) | |
594 | return false; | |
595 | ||
596 | return true; | |
597 | } | |
598 | ||
4bcf93d3 AP |
599 | /* This function will add a sta_node entry to associated station list |
600 | * table with the given mac address. | |
601 | * If entry exist already, existing entry is returned. | |
602 | * If received mac address is NULL, NULL is returned. | |
603 | */ | |
604 | struct mwifiex_sta_node * | |
3b3a0162 | 605 | mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
606 | { |
607 | struct mwifiex_sta_node *node; | |
608 | unsigned long flags; | |
609 | ||
610 | if (!mac) | |
611 | return NULL; | |
612 | ||
613 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
614 | node = mwifiex_get_sta_entry(priv, mac); | |
615 | if (node) | |
616 | goto done; | |
617 | ||
618 | node = kzalloc(sizeof(*node), GFP_ATOMIC); | |
619 | if (!node) | |
620 | goto done; | |
621 | ||
622 | memcpy(node->mac_addr, mac, ETH_ALEN); | |
623 | list_add_tail(&node->list, &priv->sta_list); | |
624 | ||
625 | done: | |
626 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
627 | return node; | |
628 | } | |
629 | ||
630 | /* This function will search for HT IE in association request IEs | |
631 | * and set station HT parameters accordingly. | |
632 | */ | |
633 | void | |
634 | mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies, | |
635 | int ies_len, struct mwifiex_sta_node *node) | |
636 | { | |
9ab7b5b9 | 637 | struct ieee_types_header *ht_cap_ie; |
4bcf93d3 AP |
638 | const struct ieee80211_ht_cap *ht_cap; |
639 | ||
640 | if (!ies) | |
641 | return; | |
642 | ||
9ab7b5b9 ZL |
643 | ht_cap_ie = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, |
644 | ies_len); | |
645 | if (ht_cap_ie) { | |
646 | ht_cap = (void *)(ht_cap_ie + 1); | |
4bcf93d3 AP |
647 | node->is_11n_enabled = 1; |
648 | node->max_amsdu = le16_to_cpu(ht_cap->cap_info) & | |
649 | IEEE80211_HT_CAP_MAX_AMSDU ? | |
650 | MWIFIEX_TX_DATA_BUF_SIZE_8K : | |
651 | MWIFIEX_TX_DATA_BUF_SIZE_4K; | |
652 | } else { | |
653 | node->is_11n_enabled = 0; | |
654 | } | |
655 | ||
656 | return; | |
657 | } | |
658 | ||
659 | /* This function will delete a station entry from station list */ | |
3b3a0162 | 660 | void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
661 | { |
662 | struct mwifiex_sta_node *node; | |
663 | unsigned long flags; | |
664 | ||
665 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
666 | ||
667 | node = mwifiex_get_sta_entry(priv, mac); | |
668 | if (node) { | |
669 | list_del(&node->list); | |
670 | kfree(node); | |
671 | } | |
672 | ||
673 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
674 | return; | |
675 | } | |
676 | ||
677 | /* This function will delete all stations from associated station list. */ | |
678 | void mwifiex_del_all_sta_list(struct mwifiex_private *priv) | |
679 | { | |
680 | struct mwifiex_sta_node *node, *tmp; | |
681 | unsigned long flags; | |
682 | ||
683 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
684 | ||
685 | list_for_each_entry_safe(node, tmp, &priv->sta_list, list) { | |
686 | list_del(&node->list); | |
687 | kfree(node); | |
688 | } | |
689 | ||
690 | INIT_LIST_HEAD(&priv->sta_list); | |
691 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
692 | return; | |
693 | } | |
cbf6e055 XH |
694 | |
695 | /* This function adds histogram data to histogram array*/ | |
696 | void mwifiex_hist_data_add(struct mwifiex_private *priv, | |
697 | u8 rx_rate, s8 snr, s8 nflr) | |
698 | { | |
699 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
700 | ||
701 | if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES) | |
702 | mwifiex_hist_data_reset(priv); | |
703 | mwifiex_hist_data_set(priv, rx_rate, snr, nflr); | |
704 | } | |
705 | ||
706 | /* function to add histogram record */ | |
707 | void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr, | |
708 | s8 nflr) | |
709 | { | |
710 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
711 | ||
712 | atomic_inc(&phist_data->num_samples); | |
713 | atomic_inc(&phist_data->rx_rate[rx_rate]); | |
714 | atomic_inc(&phist_data->snr[snr]); | |
715 | atomic_inc(&phist_data->noise_flr[128 + nflr]); | |
716 | atomic_inc(&phist_data->sig_str[nflr - snr]); | |
717 | } | |
718 | ||
719 | /* function to reset histogram data during init/reset */ | |
720 | void mwifiex_hist_data_reset(struct mwifiex_private *priv) | |
721 | { | |
722 | int ix; | |
723 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
724 | ||
725 | atomic_set(&phist_data->num_samples, 0); | |
726 | for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++) | |
727 | atomic_set(&phist_data->rx_rate[ix], 0); | |
728 | for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++) | |
729 | atomic_set(&phist_data->snr[ix], 0); | |
730 | for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++) | |
731 | atomic_set(&phist_data->noise_flr[ix], 0); | |
732 | for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++) | |
733 | atomic_set(&phist_data->sig_str[ix], 0); | |
734 | } | |
31def91b | 735 | |
62159944 | 736 | void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags) |
31def91b AP |
737 | { |
738 | struct sk_buff *skb; | |
739 | int buf_len, pad; | |
740 | ||
741 | buf_len = rx_len + MWIFIEX_RX_HEADROOM + MWIFIEX_DMA_ALIGN_SZ; | |
742 | ||
743 | skb = __dev_alloc_skb(buf_len, flags); | |
744 | ||
745 | if (!skb) | |
746 | return NULL; | |
747 | ||
748 | skb_reserve(skb, MWIFIEX_RX_HEADROOM); | |
749 | ||
750 | pad = MWIFIEX_ALIGN_ADDR(skb->data, MWIFIEX_DMA_ALIGN_SZ) - | |
751 | (long)skb->data; | |
752 | ||
753 | skb_reserve(skb, pad); | |
754 | ||
755 | return skb; | |
756 | } | |
62159944 | 757 | EXPORT_SYMBOL_GPL(mwifiex_alloc_dma_align_buf); |