Commit | Line | Data |
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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}, | |
81 | {"num_cmd_h2c_fail", item_size(num_cmd_host_to_card_failure), | |
82 | item_addr(num_cmd_host_to_card_failure), 1}, | |
83 | {"num_cmd_sleep_cfm_fail", | |
84 | item_size(num_cmd_sleep_cfm_host_to_card_failure), | |
85 | item_addr(num_cmd_sleep_cfm_host_to_card_failure), 1}, | |
86 | {"num_tx_h2c_fail", item_size(num_tx_host_to_card_failure), | |
87 | item_addr(num_tx_host_to_card_failure), 1}, | |
88 | {"num_evt_deauth", item_size(num_event_deauth), | |
89 | item_addr(num_event_deauth), 1}, | |
90 | {"num_evt_disassoc", item_size(num_event_disassoc), | |
91 | item_addr(num_event_disassoc), 1}, | |
92 | {"num_evt_link_lost", item_size(num_event_link_lost), | |
93 | item_addr(num_event_link_lost), 1}, | |
94 | {"num_cmd_deauth", item_size(num_cmd_deauth), | |
95 | item_addr(num_cmd_deauth), 1}, | |
96 | {"num_cmd_assoc_ok", item_size(num_cmd_assoc_success), | |
97 | item_addr(num_cmd_assoc_success), 1}, | |
98 | {"num_cmd_assoc_fail", item_size(num_cmd_assoc_failure), | |
99 | item_addr(num_cmd_assoc_failure), 1}, | |
100 | {"cmd_sent", item_size(cmd_sent), | |
101 | item_addr(cmd_sent), 1}, | |
102 | {"data_sent", item_size(data_sent), | |
103 | item_addr(data_sent), 1}, | |
104 | {"cmd_resp_received", item_size(cmd_resp_received), | |
105 | item_addr(cmd_resp_received), 1}, | |
106 | {"event_received", item_size(event_received), | |
107 | item_addr(event_received), 1}, | |
108 | ||
109 | /* variables defined in struct mwifiex_adapter */ | |
110 | {"cmd_pending", adapter_item_size(cmd_pending), | |
111 | adapter_item_addr(cmd_pending), 1}, | |
112 | {"tx_pending", adapter_item_size(tx_pending), | |
113 | adapter_item_addr(tx_pending), 1}, | |
114 | {"rx_pending", adapter_item_size(rx_pending), | |
115 | adapter_item_addr(rx_pending), 1}, | |
116 | }; | |
117 | ||
118 | static int num_of_items = ARRAY_SIZE(items); | |
119 | ||
5e6e3a92 BZ |
120 | /* |
121 | * Firmware initialization complete callback handler. | |
122 | * | |
123 | * This function wakes up the function waiting on the init | |
124 | * wait queue for the firmware initialization to complete. | |
125 | */ | |
126 | int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter) | |
127 | { | |
128 | ||
129 | adapter->init_wait_q_woken = true; | |
130 | wake_up_interruptible(&adapter->init_wait_q); | |
131 | return 0; | |
132 | } | |
133 | ||
134 | /* | |
135 | * Firmware shutdown complete callback handler. | |
136 | * | |
137 | * This function sets the hardware status to not ready and wakes up | |
138 | * the function waiting on the init wait queue for the firmware | |
139 | * shutdown to complete. | |
140 | */ | |
141 | int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter) | |
142 | { | |
143 | adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY; | |
144 | adapter->init_wait_q_woken = true; | |
145 | wake_up_interruptible(&adapter->init_wait_q); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | /* | |
600f5d90 | 150 | * This function sends init/shutdown command |
5e6e3a92 | 151 | * to firmware. |
5e6e3a92 | 152 | */ |
600f5d90 AK |
153 | int mwifiex_init_shutdown_fw(struct mwifiex_private *priv, |
154 | u32 func_init_shutdown) | |
5e6e3a92 | 155 | { |
5e6e3a92 BZ |
156 | u16 cmd; |
157 | ||
158 | if (func_init_shutdown == MWIFIEX_FUNC_INIT) { | |
159 | cmd = HostCmd_CMD_FUNC_INIT; | |
160 | } else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) { | |
161 | cmd = HostCmd_CMD_FUNC_SHUTDOWN; | |
162 | } else { | |
acebe8c1 ZL |
163 | mwifiex_dbg(priv->adapter, ERROR, |
164 | "unsupported parameter\n"); | |
5e6e3a92 BZ |
165 | return -1; |
166 | } | |
167 | ||
fa0ecbb9 | 168 | return mwifiex_send_cmd(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL, true); |
5e6e3a92 | 169 | } |
600f5d90 | 170 | EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw); |
5e6e3a92 BZ |
171 | |
172 | /* | |
173 | * IOCTL request handler to set/get debug information. | |
174 | * | |
175 | * This function collates/sets the information from/to different driver | |
176 | * structures. | |
177 | */ | |
178 | int mwifiex_get_debug_info(struct mwifiex_private *priv, | |
179 | struct mwifiex_debug_info *info) | |
180 | { | |
181 | struct mwifiex_adapter *adapter = priv->adapter; | |
182 | ||
183 | if (info) { | |
c687a007 | 184 | info->debug_mask = adapter->debug_mask; |
5e6e3a92 BZ |
185 | memcpy(info->packets_out, |
186 | priv->wmm.packets_out, | |
187 | sizeof(priv->wmm.packets_out)); | |
5e3175fb | 188 | info->curr_tx_buf_size = (u32) adapter->curr_tx_buf_size; |
5e6e3a92 | 189 | info->tx_buf_size = (u32) adapter->tx_buf_size; |
c65a30f3 YAP |
190 | info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(priv, |
191 | info->rx_tbl); | |
192 | info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(priv, | |
193 | info->tx_tbl); | |
72df6310 XH |
194 | info->tdls_peer_num = mwifiex_get_tdls_list(priv, |
195 | info->tdls_list); | |
5e6e3a92 BZ |
196 | info->ps_mode = adapter->ps_mode; |
197 | info->ps_state = adapter->ps_state; | |
198 | info->is_deep_sleep = adapter->is_deep_sleep; | |
199 | info->pm_wakeup_card_req = adapter->pm_wakeup_card_req; | |
200 | info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try; | |
201 | info->is_hs_configured = adapter->is_hs_configured; | |
202 | info->hs_activated = adapter->hs_activated; | |
0c9c4a09 | 203 | info->is_cmd_timedout = adapter->is_cmd_timedout; |
5e6e3a92 | 204 | info->num_cmd_host_to_card_failure |
c65a30f3 | 205 | = adapter->dbg.num_cmd_host_to_card_failure; |
5e6e3a92 BZ |
206 | info->num_cmd_sleep_cfm_host_to_card_failure |
207 | = adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure; | |
208 | info->num_tx_host_to_card_failure | |
c65a30f3 | 209 | = adapter->dbg.num_tx_host_to_card_failure; |
5e6e3a92 BZ |
210 | info->num_event_deauth = adapter->dbg.num_event_deauth; |
211 | info->num_event_disassoc = adapter->dbg.num_event_disassoc; | |
212 | info->num_event_link_lost = adapter->dbg.num_event_link_lost; | |
213 | info->num_cmd_deauth = adapter->dbg.num_cmd_deauth; | |
214 | info->num_cmd_assoc_success = | |
c65a30f3 | 215 | adapter->dbg.num_cmd_assoc_success; |
5e6e3a92 | 216 | info->num_cmd_assoc_failure = |
c65a30f3 | 217 | adapter->dbg.num_cmd_assoc_failure; |
5e6e3a92 | 218 | info->num_tx_timeout = adapter->dbg.num_tx_timeout; |
5e6e3a92 BZ |
219 | info->timeout_cmd_id = adapter->dbg.timeout_cmd_id; |
220 | info->timeout_cmd_act = adapter->dbg.timeout_cmd_act; | |
221 | memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id, | |
222 | sizeof(adapter->dbg.last_cmd_id)); | |
223 | memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act, | |
224 | sizeof(adapter->dbg.last_cmd_act)); | |
225 | info->last_cmd_index = adapter->dbg.last_cmd_index; | |
226 | memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id, | |
227 | sizeof(adapter->dbg.last_cmd_resp_id)); | |
228 | info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index; | |
229 | memcpy(info->last_event, adapter->dbg.last_event, | |
230 | sizeof(adapter->dbg.last_event)); | |
231 | info->last_event_index = adapter->dbg.last_event_index; | |
232 | info->data_sent = adapter->data_sent; | |
233 | info->cmd_sent = adapter->cmd_sent; | |
234 | info->cmd_resp_received = adapter->cmd_resp_received; | |
235 | } | |
236 | ||
237 | return 0; | |
238 | } | |
239 | ||
bb5097fe XH |
240 | int mwifiex_debug_info_to_buffer(struct mwifiex_private *priv, char *buf, |
241 | struct mwifiex_debug_info *info) | |
242 | { | |
243 | char *p = buf; | |
244 | struct mwifiex_debug_data *d = &items[0]; | |
245 | size_t size, addr; | |
246 | long val; | |
247 | int i, j; | |
248 | ||
249 | if (!info) | |
250 | return 0; | |
251 | ||
252 | for (i = 0; i < num_of_items; i++) { | |
253 | p += sprintf(p, "%s=", d[i].name); | |
254 | ||
255 | size = d[i].size / d[i].num; | |
256 | ||
257 | if (i < (num_of_items - 3)) | |
258 | addr = d[i].addr + (size_t)info; | |
259 | else /* The last 3 items are struct mwifiex_adapter variables */ | |
260 | addr = d[i].addr + (size_t)priv->adapter; | |
261 | ||
262 | for (j = 0; j < d[i].num; j++) { | |
263 | switch (size) { | |
264 | case 1: | |
265 | val = *((u8 *)addr); | |
266 | break; | |
267 | case 2: | |
268 | val = *((u16 *)addr); | |
269 | break; | |
270 | case 4: | |
271 | val = *((u32 *)addr); | |
272 | break; | |
273 | case 8: | |
274 | val = *((long long *)addr); | |
275 | break; | |
276 | default: | |
277 | val = -1; | |
278 | break; | |
279 | } | |
280 | ||
281 | p += sprintf(p, "%#lx ", val); | |
282 | addr += size; | |
283 | } | |
284 | ||
285 | p += sprintf(p, "\n"); | |
286 | } | |
287 | ||
288 | if (info->tx_tbl_num) { | |
289 | p += sprintf(p, "Tx BA stream table:\n"); | |
290 | for (i = 0; i < info->tx_tbl_num; i++) | |
291 | p += sprintf(p, "tid = %d, ra = %pM\n", | |
292 | info->tx_tbl[i].tid, info->tx_tbl[i].ra); | |
293 | } | |
294 | ||
295 | if (info->rx_tbl_num) { | |
296 | p += sprintf(p, "Rx reorder table:\n"); | |
297 | for (i = 0; i < info->rx_tbl_num; i++) { | |
298 | p += sprintf(p, "tid = %d, ta = %pM, ", | |
299 | info->rx_tbl[i].tid, | |
300 | info->rx_tbl[i].ta); | |
301 | p += sprintf(p, "start_win = %d, ", | |
302 | info->rx_tbl[i].start_win); | |
303 | p += sprintf(p, "win_size = %d, buffer: ", | |
304 | info->rx_tbl[i].win_size); | |
305 | ||
306 | for (j = 0; j < info->rx_tbl[i].win_size; j++) | |
307 | p += sprintf(p, "%c ", | |
308 | info->rx_tbl[i].buffer[j] ? | |
309 | '1' : '0'); | |
310 | ||
311 | p += sprintf(p, "\n"); | |
312 | } | |
313 | } | |
314 | ||
315 | if (info->tdls_peer_num) { | |
316 | p += sprintf(p, "TDLS peer table:\n"); | |
317 | for (i = 0; i < info->tdls_peer_num; i++) { | |
318 | p += sprintf(p, "peer = %pM", | |
319 | info->tdls_list[i].peer_addr); | |
320 | p += sprintf(p, "\n"); | |
321 | } | |
322 | } | |
323 | ||
324 | return p - buf; | |
325 | } | |
326 | ||
72e5aa8d AP |
327 | static int |
328 | mwifiex_parse_mgmt_packet(struct mwifiex_private *priv, u8 *payload, u16 len, | |
329 | struct rxpd *rx_pd) | |
330 | { | |
331 | u16 stype; | |
3e6f8a4b | 332 | u8 category, action_code, *addr2; |
72e5aa8d AP |
333 | struct ieee80211_hdr *ieee_hdr = (void *)payload; |
334 | ||
51974611 | 335 | stype = (le16_to_cpu(ieee_hdr->frame_control) & IEEE80211_FCTL_STYPE); |
72e5aa8d AP |
336 | |
337 | switch (stype) { | |
338 | case IEEE80211_STYPE_ACTION: | |
339 | category = *(payload + sizeof(struct ieee80211_hdr)); | |
3e6f8a4b AP |
340 | switch (category) { |
341 | case WLAN_CATEGORY_PUBLIC: | |
342 | action_code = *(payload + sizeof(struct ieee80211_hdr) | |
343 | + 1); | |
344 | if (action_code == WLAN_PUB_ACTION_TDLS_DISCOVER_RES) { | |
345 | addr2 = ieee_hdr->addr2; | |
346 | mwifiex_dbg(priv->adapter, INFO, | |
347 | "TDLS discovery response %pM nf=%d, snr=%d\n", | |
348 | addr2, rx_pd->nf, rx_pd->snr); | |
349 | mwifiex_auto_tdls_update_peer_signal(priv, | |
350 | addr2, | |
351 | rx_pd->snr, | |
352 | rx_pd->nf); | |
353 | } | |
354 | break; | |
355 | case WLAN_CATEGORY_BACK: | |
356 | /*we dont indicate BACK action frames to cfg80211*/ | |
357 | mwifiex_dbg(priv->adapter, INFO, | |
358 | "drop BACK action frames"); | |
359 | return -1; | |
360 | default: | |
acebe8c1 | 361 | mwifiex_dbg(priv->adapter, INFO, |
3e6f8a4b AP |
362 | "unknown public action frame category %d\n", |
363 | category); | |
72e5aa8d | 364 | } |
72e5aa8d | 365 | default: |
ec21dc4a | 366 | mwifiex_dbg(priv->adapter, INFO, |
3e6f8a4b AP |
367 | "unknown mgmt frame subtype %#x\n", stype); |
368 | return 0; | |
72e5aa8d AP |
369 | } |
370 | ||
371 | return 0; | |
372 | } | |
2dbaf751 SP |
373 | /* |
374 | * This function processes the received management packet and send it | |
375 | * to the kernel. | |
376 | */ | |
377 | int | |
f3b369e4 | 378 | mwifiex_process_mgmt_packet(struct mwifiex_private *priv, |
2dbaf751 SP |
379 | struct sk_buff *skb) |
380 | { | |
381 | struct rxpd *rx_pd; | |
2dbaf751 | 382 | u16 pkt_len; |
72e5aa8d | 383 | struct ieee80211_hdr *ieee_hdr; |
2dbaf751 SP |
384 | |
385 | if (!skb) | |
386 | return -1; | |
387 | ||
7521ce6e AP |
388 | if (!priv->mgmt_frame_mask || |
389 | priv->wdev.iftype == NL80211_IFTYPE_UNSPECIFIED) { | |
acebe8c1 ZL |
390 | mwifiex_dbg(priv->adapter, ERROR, |
391 | "do not receive mgmt frames on uninitialized intf"); | |
7521ce6e AP |
392 | return -1; |
393 | } | |
394 | ||
2dbaf751 | 395 | rx_pd = (struct rxpd *)skb->data; |
2dbaf751 SP |
396 | |
397 | skb_pull(skb, le16_to_cpu(rx_pd->rx_pkt_offset)); | |
398 | skb_pull(skb, sizeof(pkt_len)); | |
399 | ||
400 | pkt_len = le16_to_cpu(rx_pd->rx_pkt_length); | |
401 | ||
72e5aa8d AP |
402 | ieee_hdr = (void *)skb->data; |
403 | if (ieee80211_is_mgmt(ieee_hdr->frame_control)) { | |
3e6f8a4b AP |
404 | if (mwifiex_parse_mgmt_packet(priv, (u8 *)ieee_hdr, |
405 | pkt_len, rx_pd)) | |
406 | return -1; | |
72e5aa8d | 407 | } |
2dbaf751 SP |
408 | /* Remove address4 */ |
409 | memmove(skb->data + sizeof(struct ieee80211_hdr_3addr), | |
410 | skb->data + sizeof(struct ieee80211_hdr), | |
411 | pkt_len - sizeof(struct ieee80211_hdr)); | |
412 | ||
413 | pkt_len -= ETH_ALEN + sizeof(pkt_len); | |
414 | rx_pd->rx_pkt_length = cpu_to_le16(pkt_len); | |
415 | ||
4facc34a | 416 | cfg80211_rx_mgmt(&priv->wdev, priv->roc_cfg.chan.center_freq, |
19504cf5 | 417 | CAL_RSSI(rx_pd->snr, rx_pd->nf), skb->data, pkt_len, |
970fdfa8 | 418 | 0); |
2dbaf751 SP |
419 | |
420 | return 0; | |
421 | } | |
422 | ||
5e6e3a92 BZ |
423 | /* |
424 | * This function processes the received packet before sending it to the | |
425 | * kernel. | |
426 | * | |
427 | * It extracts the SKB from the received buffer and sends it to kernel. | |
428 | * In case the received buffer does not contain the data in SKB format, | |
429 | * the function creates a blank SKB, fills it with the data from the | |
430 | * received buffer and then sends this new SKB to the kernel. | |
431 | */ | |
f3b369e4 | 432 | int mwifiex_recv_packet(struct mwifiex_private *priv, struct sk_buff *skb) |
5e6e3a92 | 433 | { |
442f6f9b XH |
434 | struct mwifiex_sta_node *src_node; |
435 | struct ethhdr *p_ethhdr; | |
436 | ||
5e6e3a92 BZ |
437 | if (!skb) |
438 | return -1; | |
439 | ||
f49c6e81 UR |
440 | priv->stats.rx_bytes += skb->len; |
441 | priv->stats.rx_packets++; | |
442 | ||
442f6f9b XH |
443 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { |
444 | p_ethhdr = (void *)skb->data; | |
445 | src_node = mwifiex_get_sta_entry(priv, p_ethhdr->h_source); | |
446 | if (src_node) { | |
447 | src_node->stats.last_rx = jiffies; | |
448 | src_node->stats.rx_bytes += skb->len; | |
449 | src_node->stats.rx_packets++; | |
450 | } | |
451 | } | |
452 | ||
5e6e3a92 BZ |
453 | skb->dev = priv->netdev; |
454 | skb->protocol = eth_type_trans(skb, priv->netdev); | |
455 | skb->ip_summed = CHECKSUM_NONE; | |
4daffe35 | 456 | |
f553e1aa | 457 | /* This is required only in case of 11n and USB/PCIE as we alloc |
4daffe35 AK |
458 | * a buffer of 4K only if its 11N (to be able to receive 4K |
459 | * AMSDU packets). In case of SD we allocate buffers based | |
460 | * on the size of packet and hence this is not needed. | |
461 | * | |
462 | * Modifying the truesize here as our allocation for each | |
463 | * skb is 4K but we only receive 2K packets and this cause | |
464 | * the kernel to start dropping packets in case where | |
465 | * application has allocated buffer based on 2K size i.e. | |
466 | * if there a 64K packet received (in IP fragments and | |
467 | * application allocates 64K to receive this packet but | |
468 | * this packet would almost double up because we allocate | |
469 | * each 1.5K fragment in 4K and pass it up. As soon as the | |
470 | * 64K limit hits kernel will start to drop rest of the | |
471 | * fragments. Currently we fail the Filesndl-ht.scr script | |
472 | * for UDP, hence this fix | |
473 | */ | |
f553e1aa AP |
474 | if ((priv->adapter->iface_type == MWIFIEX_USB || |
475 | priv->adapter->iface_type == MWIFIEX_PCIE) && | |
4daffe35 AK |
476 | (skb->truesize > MWIFIEX_RX_DATA_BUF_SIZE)) |
477 | skb->truesize += (skb->len - MWIFIEX_RX_DATA_BUF_SIZE); | |
478 | ||
5e6e3a92 BZ |
479 | if (in_interrupt()) |
480 | netif_rx(skb); | |
481 | else | |
482 | netif_rx_ni(skb); | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
5e6e3a92 BZ |
487 | /* |
488 | * IOCTL completion callback handler. | |
489 | * | |
490 | * This function is called when a pending IOCTL is completed. | |
491 | * | |
492 | * If work queue support is enabled, the function wakes up the | |
493 | * corresponding waiting function. Otherwise, it processes the | |
494 | * IOCTL response and frees the response buffer. | |
495 | */ | |
efaaa8b8 AK |
496 | int mwifiex_complete_cmd(struct mwifiex_adapter *adapter, |
497 | struct cmd_ctrl_node *cmd_node) | |
5e6e3a92 | 498 | { |
acebe8c1 ZL |
499 | mwifiex_dbg(adapter, CMD, |
500 | "cmd completed: status=%d\n", | |
501 | adapter->cmd_wait_q.status); | |
5e6e3a92 | 502 | |
efaaa8b8 | 503 | *(cmd_node->condition) = true; |
5e6e3a92 | 504 | |
600f5d90 | 505 | if (adapter->cmd_wait_q.status == -ETIMEDOUT) |
acebe8c1 | 506 | mwifiex_dbg(adapter, ERROR, "cmd timeout\n"); |
600f5d90 AK |
507 | else |
508 | wake_up_interruptible(&adapter->cmd_wait_q.wait); | |
5e6e3a92 BZ |
509 | |
510 | return 0; | |
511 | } | |
4bcf93d3 AP |
512 | |
513 | /* This function will return the pointer to station entry in station list | |
514 | * table which matches specified mac address. | |
515 | * This function should be called after acquiring RA list spinlock. | |
516 | * NULL is returned if station entry is not found in associated STA list. | |
517 | */ | |
518 | struct mwifiex_sta_node * | |
3b3a0162 | 519 | mwifiex_get_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
520 | { |
521 | struct mwifiex_sta_node *node; | |
522 | ||
523 | if (!mac) | |
524 | return NULL; | |
525 | ||
526 | list_for_each_entry(node, &priv->sta_list, list) { | |
527 | if (!memcmp(node->mac_addr, mac, ETH_ALEN)) | |
528 | return node; | |
529 | } | |
530 | ||
531 | return NULL; | |
532 | } | |
533 | ||
534 | /* This function will add a sta_node entry to associated station list | |
535 | * table with the given mac address. | |
536 | * If entry exist already, existing entry is returned. | |
537 | * If received mac address is NULL, NULL is returned. | |
538 | */ | |
539 | struct mwifiex_sta_node * | |
3b3a0162 | 540 | mwifiex_add_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
541 | { |
542 | struct mwifiex_sta_node *node; | |
543 | unsigned long flags; | |
544 | ||
545 | if (!mac) | |
546 | return NULL; | |
547 | ||
548 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
549 | node = mwifiex_get_sta_entry(priv, mac); | |
550 | if (node) | |
551 | goto done; | |
552 | ||
553 | node = kzalloc(sizeof(*node), GFP_ATOMIC); | |
554 | if (!node) | |
555 | goto done; | |
556 | ||
557 | memcpy(node->mac_addr, mac, ETH_ALEN); | |
558 | list_add_tail(&node->list, &priv->sta_list); | |
559 | ||
560 | done: | |
561 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
562 | return node; | |
563 | } | |
564 | ||
565 | /* This function will search for HT IE in association request IEs | |
566 | * and set station HT parameters accordingly. | |
567 | */ | |
568 | void | |
569 | mwifiex_set_sta_ht_cap(struct mwifiex_private *priv, const u8 *ies, | |
570 | int ies_len, struct mwifiex_sta_node *node) | |
571 | { | |
9ab7b5b9 | 572 | struct ieee_types_header *ht_cap_ie; |
4bcf93d3 AP |
573 | const struct ieee80211_ht_cap *ht_cap; |
574 | ||
575 | if (!ies) | |
576 | return; | |
577 | ||
9ab7b5b9 ZL |
578 | ht_cap_ie = (void *)cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies, |
579 | ies_len); | |
580 | if (ht_cap_ie) { | |
581 | ht_cap = (void *)(ht_cap_ie + 1); | |
4bcf93d3 AP |
582 | node->is_11n_enabled = 1; |
583 | node->max_amsdu = le16_to_cpu(ht_cap->cap_info) & | |
584 | IEEE80211_HT_CAP_MAX_AMSDU ? | |
585 | MWIFIEX_TX_DATA_BUF_SIZE_8K : | |
586 | MWIFIEX_TX_DATA_BUF_SIZE_4K; | |
587 | } else { | |
588 | node->is_11n_enabled = 0; | |
589 | } | |
590 | ||
591 | return; | |
592 | } | |
593 | ||
594 | /* This function will delete a station entry from station list */ | |
3b3a0162 | 595 | void mwifiex_del_sta_entry(struct mwifiex_private *priv, const u8 *mac) |
4bcf93d3 AP |
596 | { |
597 | struct mwifiex_sta_node *node; | |
598 | unsigned long flags; | |
599 | ||
600 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
601 | ||
602 | node = mwifiex_get_sta_entry(priv, mac); | |
603 | if (node) { | |
604 | list_del(&node->list); | |
605 | kfree(node); | |
606 | } | |
607 | ||
608 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
609 | return; | |
610 | } | |
611 | ||
612 | /* This function will delete all stations from associated station list. */ | |
613 | void mwifiex_del_all_sta_list(struct mwifiex_private *priv) | |
614 | { | |
615 | struct mwifiex_sta_node *node, *tmp; | |
616 | unsigned long flags; | |
617 | ||
618 | spin_lock_irqsave(&priv->sta_list_spinlock, flags); | |
619 | ||
620 | list_for_each_entry_safe(node, tmp, &priv->sta_list, list) { | |
621 | list_del(&node->list); | |
622 | kfree(node); | |
623 | } | |
624 | ||
625 | INIT_LIST_HEAD(&priv->sta_list); | |
626 | spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); | |
627 | return; | |
628 | } | |
cbf6e055 XH |
629 | |
630 | /* This function adds histogram data to histogram array*/ | |
631 | void mwifiex_hist_data_add(struct mwifiex_private *priv, | |
632 | u8 rx_rate, s8 snr, s8 nflr) | |
633 | { | |
634 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
635 | ||
636 | if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES) | |
637 | mwifiex_hist_data_reset(priv); | |
638 | mwifiex_hist_data_set(priv, rx_rate, snr, nflr); | |
639 | } | |
640 | ||
641 | /* function to add histogram record */ | |
642 | void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr, | |
643 | s8 nflr) | |
644 | { | |
645 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
646 | ||
647 | atomic_inc(&phist_data->num_samples); | |
648 | atomic_inc(&phist_data->rx_rate[rx_rate]); | |
649 | atomic_inc(&phist_data->snr[snr]); | |
650 | atomic_inc(&phist_data->noise_flr[128 + nflr]); | |
651 | atomic_inc(&phist_data->sig_str[nflr - snr]); | |
652 | } | |
653 | ||
654 | /* function to reset histogram data during init/reset */ | |
655 | void mwifiex_hist_data_reset(struct mwifiex_private *priv) | |
656 | { | |
657 | int ix; | |
658 | struct mwifiex_histogram_data *phist_data = priv->hist_data; | |
659 | ||
660 | atomic_set(&phist_data->num_samples, 0); | |
661 | for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++) | |
662 | atomic_set(&phist_data->rx_rate[ix], 0); | |
663 | for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++) | |
664 | atomic_set(&phist_data->snr[ix], 0); | |
665 | for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++) | |
666 | atomic_set(&phist_data->noise_flr[ix], 0); | |
667 | for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++) | |
668 | atomic_set(&phist_data->sig_str[ix], 0); | |
669 | } | |
31def91b | 670 | |
62159944 | 671 | void *mwifiex_alloc_dma_align_buf(int rx_len, gfp_t flags) |
31def91b AP |
672 | { |
673 | struct sk_buff *skb; | |
674 | int buf_len, pad; | |
675 | ||
676 | buf_len = rx_len + MWIFIEX_RX_HEADROOM + MWIFIEX_DMA_ALIGN_SZ; | |
677 | ||
678 | skb = __dev_alloc_skb(buf_len, flags); | |
679 | ||
680 | if (!skb) | |
681 | return NULL; | |
682 | ||
683 | skb_reserve(skb, MWIFIEX_RX_HEADROOM); | |
684 | ||
685 | pad = MWIFIEX_ALIGN_ADDR(skb->data, MWIFIEX_DMA_ALIGN_SZ) - | |
686 | (long)skb->data; | |
687 | ||
688 | skb_reserve(skb, pad); | |
689 | ||
690 | return skb; | |
691 | } | |
62159944 | 692 | EXPORT_SYMBOL_GPL(mwifiex_alloc_dma_align_buf); |