1 | /* |
2 | * Copyright (c) 2004-2011 Atheros Communications Inc. |
3 | * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. |
4 | * |
5 | * Permission to use, copy, modify, and/or distribute this software for any |
6 | * purpose with or without fee is hereby granted, provided that the above |
7 | * copyright notice and this permission notice appear in all copies. |
8 | * |
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
16 | */ |
17 | |
18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
19 | |
20 | #include "core.h" |
21 | #include "hif-ops.h" |
22 | #include "cfg80211.h" |
23 | #include "target.h" |
24 | #include "debug.h" |
25 | |
26 | struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) |
27 | { |
28 | struct ath6kl *ar = vif->ar; |
29 | struct ath6kl_sta *conn = NULL; |
30 | u8 i, max_conn; |
31 | |
32 | if (is_zero_ether_addr(addr: node_addr)) |
33 | return NULL; |
34 | |
35 | max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; |
36 | |
37 | for (i = 0; i < max_conn; i++) { |
38 | if (memcmp(p: node_addr, q: ar->sta_list[i].mac, ETH_ALEN) == 0) { |
39 | conn = &ar->sta_list[i]; |
40 | break; |
41 | } |
42 | } |
43 | |
44 | return conn; |
45 | } |
46 | |
47 | struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) |
48 | { |
49 | struct ath6kl_sta *conn = NULL; |
50 | u8 ctr; |
51 | |
52 | for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { |
53 | if (ar->sta_list[ctr].aid == aid) { |
54 | conn = &ar->sta_list[ctr]; |
55 | break; |
56 | } |
57 | } |
58 | return conn; |
59 | } |
60 | |
61 | static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid, |
62 | u8 *wpaie, size_t ielen, u8 keymgmt, |
63 | u8 ucipher, u8 auth, u8 apsd_info) |
64 | { |
65 | struct ath6kl *ar = vif->ar; |
66 | struct ath6kl_sta *sta; |
67 | u8 free_slot; |
68 | |
69 | free_slot = aid - 1; |
70 | |
71 | sta = &ar->sta_list[free_slot]; |
72 | memcpy(sta->mac, mac, ETH_ALEN); |
73 | if (ielen <= ATH6KL_MAX_IE) |
74 | memcpy(sta->wpa_ie, wpaie, ielen); |
75 | sta->aid = aid; |
76 | sta->keymgmt = keymgmt; |
77 | sta->ucipher = ucipher; |
78 | sta->auth = auth; |
79 | sta->apsd_info = apsd_info; |
80 | |
81 | ar->sta_list_index = ar->sta_list_index | (1 << free_slot); |
82 | ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); |
83 | aggr_conn_init(vif, aggr_info: vif->aggr_cntxt, aggr_conn: sta->aggr_conn); |
84 | } |
85 | |
86 | static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) |
87 | { |
88 | struct ath6kl_sta *sta = &ar->sta_list[i]; |
89 | struct ath6kl_mgmt_buff *entry, *tmp; |
90 | |
91 | /* empty the queued pkts in the PS queue if any */ |
92 | spin_lock_bh(lock: &sta->psq_lock); |
93 | skb_queue_purge(list: &sta->psq); |
94 | skb_queue_purge(list: &sta->apsdq); |
95 | |
96 | if (sta->mgmt_psq_len != 0) { |
97 | list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) { |
98 | kfree(objp: entry); |
99 | } |
100 | INIT_LIST_HEAD(list: &sta->mgmt_psq); |
101 | sta->mgmt_psq_len = 0; |
102 | } |
103 | |
104 | spin_unlock_bh(lock: &sta->psq_lock); |
105 | |
106 | memset(&ar->ap_stats.sta[sta->aid - 1], 0, |
107 | sizeof(struct wmi_per_sta_stat)); |
108 | eth_zero_addr(addr: sta->mac); |
109 | memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); |
110 | sta->aid = 0; |
111 | sta->sta_flags = 0; |
112 | |
113 | ar->sta_list_index = ar->sta_list_index & ~(1 << i); |
114 | aggr_reset_state(aggr_conn: sta->aggr_conn); |
115 | } |
116 | |
117 | static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) |
118 | { |
119 | u8 i, removed = 0; |
120 | |
121 | if (is_zero_ether_addr(addr: mac)) |
122 | return removed; |
123 | |
124 | if (is_broadcast_ether_addr(addr: mac)) { |
125 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, fmt: "deleting all station\n" ); |
126 | |
127 | for (i = 0; i < AP_MAX_NUM_STA; i++) { |
128 | if (!is_zero_ether_addr(addr: ar->sta_list[i].mac)) { |
129 | ath6kl_sta_cleanup(ar, i); |
130 | removed = 1; |
131 | } |
132 | } |
133 | } else { |
134 | for (i = 0; i < AP_MAX_NUM_STA; i++) { |
135 | if (memcmp(p: ar->sta_list[i].mac, q: mac, ETH_ALEN) == 0) { |
136 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, |
137 | fmt: "deleting station %pM aid=%d reason=%d\n" , |
138 | mac, ar->sta_list[i].aid, reason); |
139 | ath6kl_sta_cleanup(ar, i); |
140 | removed = 1; |
141 | break; |
142 | } |
143 | } |
144 | } |
145 | |
146 | return removed; |
147 | } |
148 | |
149 | enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) |
150 | { |
151 | struct ath6kl *ar = devt; |
152 | return ar->ac2ep_map[ac]; |
153 | } |
154 | |
155 | struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) |
156 | { |
157 | struct ath6kl_cookie *cookie; |
158 | |
159 | cookie = ar->cookie_list; |
160 | if (cookie != NULL) { |
161 | ar->cookie_list = cookie->arc_list_next; |
162 | ar->cookie_count--; |
163 | } |
164 | |
165 | return cookie; |
166 | } |
167 | |
168 | void ath6kl_cookie_init(struct ath6kl *ar) |
169 | { |
170 | u32 i; |
171 | |
172 | ar->cookie_list = NULL; |
173 | ar->cookie_count = 0; |
174 | |
175 | memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); |
176 | |
177 | for (i = 0; i < MAX_COOKIE_NUM; i++) |
178 | ath6kl_free_cookie(ar, cookie: &ar->cookie_mem[i]); |
179 | } |
180 | |
181 | void ath6kl_cookie_cleanup(struct ath6kl *ar) |
182 | { |
183 | ar->cookie_list = NULL; |
184 | ar->cookie_count = 0; |
185 | } |
186 | |
187 | void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) |
188 | { |
189 | /* Insert first */ |
190 | |
191 | if (!ar || !cookie) |
192 | return; |
193 | |
194 | cookie->arc_list_next = ar->cookie_list; |
195 | ar->cookie_list = cookie; |
196 | ar->cookie_count++; |
197 | } |
198 | |
199 | /* |
200 | * Read from the hardware through its diagnostic window. No cooperation |
201 | * from the firmware is required for this. |
202 | */ |
203 | int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) |
204 | { |
205 | int ret; |
206 | |
207 | ret = ath6kl_hif_diag_read32(ar, address, value); |
208 | if (ret) { |
209 | ath6kl_warn(fmt: "failed to read32 through diagnose window: %d\n" , |
210 | ret); |
211 | return ret; |
212 | } |
213 | |
214 | return 0; |
215 | } |
216 | |
217 | /* |
218 | * Write to the ATH6KL through its diagnostic window. No cooperation from |
219 | * the Target is required for this. |
220 | */ |
221 | int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) |
222 | { |
223 | int ret; |
224 | |
225 | ret = ath6kl_hif_diag_write32(ar, address, value); |
226 | |
227 | if (ret) { |
228 | ath6kl_err(fmt: "failed to write 0x%x during diagnose window to 0x%x\n" , |
229 | address, value); |
230 | return ret; |
231 | } |
232 | |
233 | return 0; |
234 | } |
235 | |
236 | int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) |
237 | { |
238 | u32 count, *buf = data; |
239 | int ret; |
240 | |
241 | if (WARN_ON(length % 4)) |
242 | return -EINVAL; |
243 | |
244 | for (count = 0; count < length / 4; count++, address += 4) { |
245 | ret = ath6kl_diag_read32(ar, address, value: &buf[count]); |
246 | if (ret) |
247 | return ret; |
248 | } |
249 | |
250 | return 0; |
251 | } |
252 | |
253 | int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) |
254 | { |
255 | u32 count; |
256 | __le32 *buf = data; |
257 | int ret; |
258 | |
259 | if (WARN_ON(length % 4)) |
260 | return -EINVAL; |
261 | |
262 | for (count = 0; count < length / 4; count++, address += 4) { |
263 | ret = ath6kl_diag_write32(ar, address, value: buf[count]); |
264 | if (ret) |
265 | return ret; |
266 | } |
267 | |
268 | return 0; |
269 | } |
270 | |
271 | int ath6kl_read_fwlogs(struct ath6kl *ar) |
272 | { |
273 | struct ath6kl_dbglog_hdr debug_hdr; |
274 | struct ath6kl_dbglog_buf debug_buf; |
275 | u32 address, length, firstbuf, debug_hdr_addr; |
276 | int ret, loop; |
277 | u8 *buf; |
278 | |
279 | buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); |
280 | if (!buf) |
281 | return -ENOMEM; |
282 | |
283 | address = TARG_VTOP(ar->target_type, |
284 | ath6kl_get_hi_item_addr(ar, |
285 | HI_ITEM(hi_dbglog_hdr))); |
286 | |
287 | ret = ath6kl_diag_read32(ar, address, value: &debug_hdr_addr); |
288 | if (ret) |
289 | goto out; |
290 | |
291 | /* Get the contents of the ring buffer */ |
292 | if (debug_hdr_addr == 0) { |
293 | ath6kl_warn(fmt: "Invalid address for debug_hdr_addr\n" ); |
294 | ret = -EINVAL; |
295 | goto out; |
296 | } |
297 | |
298 | address = TARG_VTOP(ar->target_type, debug_hdr_addr); |
299 | ret = ath6kl_diag_read(ar, address, data: &debug_hdr, length: sizeof(debug_hdr)); |
300 | if (ret) |
301 | goto out; |
302 | |
303 | address = TARG_VTOP(ar->target_type, |
304 | le32_to_cpu(debug_hdr.dbuf_addr)); |
305 | firstbuf = address; |
306 | ret = ath6kl_diag_read(ar, address, data: &debug_buf, length: sizeof(debug_buf)); |
307 | if (ret) |
308 | goto out; |
309 | |
310 | loop = 100; |
311 | |
312 | do { |
313 | address = TARG_VTOP(ar->target_type, |
314 | le32_to_cpu(debug_buf.buffer_addr)); |
315 | length = le32_to_cpu(debug_buf.length); |
316 | |
317 | if (length != 0 && (le32_to_cpu(debug_buf.length) <= |
318 | le32_to_cpu(debug_buf.bufsize))) { |
319 | length = ALIGN(length, 4); |
320 | |
321 | ret = ath6kl_diag_read(ar, address, |
322 | data: buf, length); |
323 | if (ret) |
324 | goto out; |
325 | |
326 | ath6kl_debug_fwlog_event(ar, buf, len: length); |
327 | } |
328 | |
329 | address = TARG_VTOP(ar->target_type, |
330 | le32_to_cpu(debug_buf.next)); |
331 | ret = ath6kl_diag_read(ar, address, data: &debug_buf, |
332 | length: sizeof(debug_buf)); |
333 | if (ret) |
334 | goto out; |
335 | |
336 | loop--; |
337 | |
338 | if (WARN_ON(loop == 0)) { |
339 | ret = -ETIMEDOUT; |
340 | goto out; |
341 | } |
342 | } while (address != firstbuf); |
343 | |
344 | out: |
345 | kfree(objp: buf); |
346 | |
347 | return ret; |
348 | } |
349 | |
350 | static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) |
351 | { |
352 | u8 index; |
353 | u8 keyusage; |
354 | |
355 | for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) { |
356 | if (vif->wep_key_list[index].key_len) { |
357 | keyusage = GROUP_USAGE; |
358 | if (index == vif->def_txkey_index) |
359 | keyusage |= TX_USAGE; |
360 | |
361 | ath6kl_wmi_addkey_cmd(wmi: vif->ar->wmi, if_idx: vif->fw_vif_idx, |
362 | key_index: index, |
363 | key_type: WEP_CRYPT, |
364 | key_usage: keyusage, |
365 | key_len: vif->wep_key_list[index].key_len, |
366 | NULL, key_rsc_len: 0, |
367 | key_material: vif->wep_key_list[index].key, |
368 | KEY_OP_INIT_VAL, NULL, |
369 | sync_flag: NO_SYNC_WMIFLAG); |
370 | } |
371 | } |
372 | } |
373 | |
374 | void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) |
375 | { |
376 | struct ath6kl *ar = vif->ar; |
377 | struct ath6kl_req_key *ik; |
378 | int res; |
379 | u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; |
380 | |
381 | ik = &ar->ap_mode_bkey; |
382 | |
383 | ath6kl_dbg(mask: ATH6KL_DBG_WLAN_CFG, fmt: "AP mode started on %u MHz\n" , channel); |
384 | |
385 | switch (vif->auth_mode) { |
386 | case NONE_AUTH: |
387 | if (vif->prwise_crypto == WEP_CRYPT) |
388 | ath6kl_install_static_wep_keys(vif); |
389 | if (!ik->valid || ik->key_type != WAPI_CRYPT) |
390 | break; |
391 | /* for WAPI, we need to set the delayed group key, continue: */ |
392 | fallthrough; |
393 | case WPA_PSK_AUTH: |
394 | case WPA2_PSK_AUTH: |
395 | case (WPA_PSK_AUTH | WPA2_PSK_AUTH): |
396 | if (!ik->valid) |
397 | break; |
398 | |
399 | ath6kl_dbg(mask: ATH6KL_DBG_WLAN_CFG, |
400 | fmt: "Delayed addkey for the initial group key for AP mode\n" ); |
401 | memset(key_rsc, 0, sizeof(key_rsc)); |
402 | res = ath6kl_wmi_addkey_cmd( |
403 | wmi: ar->wmi, if_idx: vif->fw_vif_idx, key_index: ik->key_index, key_type: ik->key_type, |
404 | key_usage: GROUP_USAGE, key_len: ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, |
405 | key_material: ik->key, |
406 | KEY_OP_INIT_VAL, NULL, sync_flag: SYNC_BOTH_WMIFLAG); |
407 | if (res) { |
408 | ath6kl_dbg(mask: ATH6KL_DBG_WLAN_CFG, |
409 | fmt: "Delayed addkey failed: %d\n" , res); |
410 | } |
411 | break; |
412 | } |
413 | |
414 | if (ar->last_ch != channel) |
415 | /* we actually don't know the phymode, default to HT20 */ |
416 | ath6kl_cfg80211_ch_switch_notify(vif, freq: channel, mode: WMI_11G_HT20); |
417 | |
418 | ath6kl_wmi_bssfilter_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, filter: NONE_BSS_FILTER, ie_mask: 0); |
419 | set_bit(nr: CONNECTED, addr: &vif->flags); |
420 | netif_carrier_on(dev: vif->ndev); |
421 | } |
422 | |
423 | void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, |
424 | u8 keymgmt, u8 ucipher, u8 auth, |
425 | u8 assoc_req_len, u8 *assoc_info, u8 apsd_info) |
426 | { |
427 | u8 *ies = NULL, *wpa_ie = NULL, *pos; |
428 | size_t ies_len = 0; |
429 | struct station_info *sinfo; |
430 | |
431 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, fmt: "new station %pM aid=%d\n" , mac_addr, aid); |
432 | |
433 | if (aid < 1 || aid > AP_MAX_NUM_STA) |
434 | return; |
435 | |
436 | if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { |
437 | struct ieee80211_mgmt *mgmt = |
438 | (struct ieee80211_mgmt *) assoc_info; |
439 | if (ieee80211_is_assoc_req(fc: mgmt->frame_control) && |
440 | assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + |
441 | sizeof(mgmt->u.assoc_req)) { |
442 | ies = mgmt->u.assoc_req.variable; |
443 | ies_len = assoc_info + assoc_req_len - ies; |
444 | } else if (ieee80211_is_reassoc_req(fc: mgmt->frame_control) && |
445 | assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) |
446 | + sizeof(mgmt->u.reassoc_req)) { |
447 | ies = mgmt->u.reassoc_req.variable; |
448 | ies_len = assoc_info + assoc_req_len - ies; |
449 | } |
450 | } |
451 | |
452 | pos = ies; |
453 | while (pos && pos + 1 < ies + ies_len) { |
454 | if (pos + 2 + pos[1] > ies + ies_len) |
455 | break; |
456 | if (pos[0] == WLAN_EID_RSN) |
457 | wpa_ie = pos; /* RSN IE */ |
458 | else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && |
459 | pos[1] >= 4 && |
460 | pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { |
461 | if (pos[5] == 0x01) |
462 | wpa_ie = pos; /* WPA IE */ |
463 | else if (pos[5] == 0x04) { |
464 | wpa_ie = pos; /* WPS IE */ |
465 | break; /* overrides WPA/RSN IE */ |
466 | } |
467 | } else if (pos[0] == 0x44 && wpa_ie == NULL) { |
468 | /* |
469 | * Note: WAPI Parameter Set IE re-uses Element ID that |
470 | * was officially allocated for BSS AC Access Delay. As |
471 | * such, we need to be a bit more careful on when |
472 | * parsing the frame. However, BSS AC Access Delay |
473 | * element is not supposed to be included in |
474 | * (Re)Association Request frames, so this should not |
475 | * cause problems. |
476 | */ |
477 | wpa_ie = pos; /* WAPI IE */ |
478 | break; |
479 | } |
480 | pos += 2 + pos[1]; |
481 | } |
482 | |
483 | ath6kl_add_new_sta(vif, mac: mac_addr, aid, wpaie: wpa_ie, |
484 | ielen: wpa_ie ? 2 + wpa_ie[1] : 0, |
485 | keymgmt, ucipher, auth, apsd_info); |
486 | |
487 | /* send event to application */ |
488 | sinfo = kzalloc(size: sizeof(*sinfo), GFP_KERNEL); |
489 | if (!sinfo) |
490 | return; |
491 | |
492 | /* TODO: sinfo.generation */ |
493 | |
494 | sinfo->assoc_req_ies = ies; |
495 | sinfo->assoc_req_ies_len = ies_len; |
496 | |
497 | cfg80211_new_sta(dev: vif->ndev, mac_addr, sinfo, GFP_KERNEL); |
498 | |
499 | netif_wake_queue(dev: vif->ndev); |
500 | |
501 | kfree(objp: sinfo); |
502 | } |
503 | |
504 | void disconnect_timer_handler(struct timer_list *t) |
505 | { |
506 | struct ath6kl_vif *vif = from_timer(vif, t, disconnect_timer); |
507 | |
508 | ath6kl_init_profile_info(vif); |
509 | ath6kl_disconnect(vif); |
510 | } |
511 | |
512 | void ath6kl_disconnect(struct ath6kl_vif *vif) |
513 | { |
514 | if (test_bit(CONNECTED, &vif->flags) || |
515 | test_bit(CONNECT_PEND, &vif->flags)) { |
516 | ath6kl_wmi_disconnect_cmd(wmi: vif->ar->wmi, if_idx: vif->fw_vif_idx); |
517 | /* |
518 | * Disconnect command is issued, clear the connect pending |
519 | * flag. The connected flag will be cleared in |
520 | * disconnect event notification. |
521 | */ |
522 | clear_bit(nr: CONNECT_PEND, addr: &vif->flags); |
523 | } |
524 | } |
525 | |
526 | /* WMI Event handlers */ |
527 | |
528 | void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver, |
529 | enum wmi_phy_cap cap) |
530 | { |
531 | struct ath6kl *ar = devt; |
532 | |
533 | memcpy(ar->mac_addr, datap, ETH_ALEN); |
534 | |
535 | ath6kl_dbg(mask: ATH6KL_DBG_BOOT, |
536 | fmt: "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n" , |
537 | ar->mac_addr, sw_ver, abi_ver, cap); |
538 | |
539 | ar->version.wlan_ver = sw_ver; |
540 | ar->version.abi_ver = abi_ver; |
541 | ar->hw.cap = cap; |
542 | |
543 | if (strlen(ar->wiphy->fw_version) == 0) { |
544 | snprintf(buf: ar->wiphy->fw_version, |
545 | size: sizeof(ar->wiphy->fw_version), |
546 | fmt: "%u.%u.%u.%u" , |
547 | (ar->version.wlan_ver & 0xf0000000) >> 28, |
548 | (ar->version.wlan_ver & 0x0f000000) >> 24, |
549 | (ar->version.wlan_ver & 0x00ff0000) >> 16, |
550 | (ar->version.wlan_ver & 0x0000ffff)); |
551 | } |
552 | |
553 | /* indicate to the waiting thread that the ready event was received */ |
554 | set_bit(nr: WMI_READY, addr: &ar->flag); |
555 | wake_up(&ar->event_wq); |
556 | } |
557 | |
558 | void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) |
559 | { |
560 | struct ath6kl *ar = vif->ar; |
561 | bool aborted = false; |
562 | |
563 | if (status != WMI_SCAN_STATUS_SUCCESS) |
564 | aborted = true; |
565 | |
566 | ath6kl_cfg80211_scan_complete_event(vif, aborted); |
567 | |
568 | if (!ar->usr_bss_filter) { |
569 | clear_bit(nr: CLEAR_BSSFILTER_ON_BEACON, addr: &vif->flags); |
570 | ath6kl_wmi_bssfilter_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
571 | filter: NONE_BSS_FILTER, ie_mask: 0); |
572 | } |
573 | |
574 | ath6kl_dbg(mask: ATH6KL_DBG_WLAN_CFG, fmt: "scan complete: %d\n" , status); |
575 | } |
576 | |
577 | static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel) |
578 | { |
579 | struct ath6kl *ar = vif->ar; |
580 | |
581 | vif->profile.ch = cpu_to_le16(channel); |
582 | |
583 | switch (vif->nw_type) { |
584 | case AP_NETWORK: |
585 | /* |
586 | * reconfigure any saved RSN IE capabilites in the beacon / |
587 | * probe response to stay in sync with the supplicant. |
588 | */ |
589 | if (vif->rsn_capab && |
590 | test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, |
591 | ar->fw_capabilities)) |
592 | ath6kl_wmi_set_ie_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
593 | ie_id: WLAN_EID_RSN, ie_field: WMI_RSN_IE_CAPB, |
594 | ie_info: (const u8 *) &vif->rsn_capab, |
595 | ie_len: sizeof(vif->rsn_capab)); |
596 | |
597 | return ath6kl_wmi_ap_profile_commit(wmip: ar->wmi, if_idx: vif->fw_vif_idx, |
598 | p: &vif->profile); |
599 | default: |
600 | ath6kl_err(fmt: "won't switch channels nw_type=%d\n" , vif->nw_type); |
601 | return -ENOTSUPP; |
602 | } |
603 | } |
604 | |
605 | static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel) |
606 | { |
607 | struct ath6kl_vif *vif; |
608 | int res = 0; |
609 | |
610 | if (!ar->want_ch_switch) |
611 | return; |
612 | |
613 | spin_lock_bh(lock: &ar->list_lock); |
614 | list_for_each_entry(vif, &ar->vif_list, list) { |
615 | if (ar->want_ch_switch & (1 << vif->fw_vif_idx)) |
616 | res = ath6kl_commit_ch_switch(vif, channel); |
617 | |
618 | /* if channel switch failed, oh well we tried */ |
619 | ar->want_ch_switch &= ~(1 << vif->fw_vif_idx); |
620 | |
621 | if (res) |
622 | ath6kl_err(fmt: "channel switch failed nw_type %d res %d\n" , |
623 | vif->nw_type, res); |
624 | } |
625 | spin_unlock_bh(lock: &ar->list_lock); |
626 | } |
627 | |
628 | void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, |
629 | u16 listen_int, u16 beacon_int, |
630 | enum network_type net_type, u8 beacon_ie_len, |
631 | u8 assoc_req_len, u8 assoc_resp_len, |
632 | u8 *assoc_info) |
633 | { |
634 | struct ath6kl *ar = vif->ar; |
635 | |
636 | ath6kl_cfg80211_connect_event(vif, channel, bssid, |
637 | listen_intvl: listen_int, beacon_intvl: beacon_int, |
638 | nw_type: net_type, beacon_ie_len, |
639 | assoc_req_len, assoc_resp_len, |
640 | assoc_info); |
641 | |
642 | memcpy(vif->bssid, bssid, sizeof(vif->bssid)); |
643 | vif->bss_ch = channel; |
644 | |
645 | if (vif->nw_type == INFRA_NETWORK) { |
646 | ath6kl_wmi_listeninterval_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
647 | listen_interval: vif->listen_intvl_t, listen_beacons: 0); |
648 | ath6kl_check_ch_switch(ar, channel); |
649 | } |
650 | |
651 | netif_wake_queue(dev: vif->ndev); |
652 | |
653 | /* Update connect & link status atomically */ |
654 | spin_lock_bh(lock: &vif->if_lock); |
655 | set_bit(nr: CONNECTED, addr: &vif->flags); |
656 | clear_bit(nr: CONNECT_PEND, addr: &vif->flags); |
657 | netif_carrier_on(dev: vif->ndev); |
658 | spin_unlock_bh(lock: &vif->if_lock); |
659 | |
660 | aggr_reset_state(aggr_conn: vif->aggr_cntxt->aggr_conn); |
661 | vif->reconnect_flag = 0; |
662 | |
663 | if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { |
664 | memset(ar->node_map, 0, sizeof(ar->node_map)); |
665 | ar->node_num = 0; |
666 | ar->next_ep_id = ENDPOINT_2; |
667 | } |
668 | |
669 | if (!ar->usr_bss_filter) { |
670 | set_bit(nr: CLEAR_BSSFILTER_ON_BEACON, addr: &vif->flags); |
671 | ath6kl_wmi_bssfilter_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
672 | filter: CURRENT_BSS_FILTER, ie_mask: 0); |
673 | } |
674 | } |
675 | |
676 | void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) |
677 | { |
678 | struct ath6kl_sta *sta; |
679 | struct ath6kl *ar = vif->ar; |
680 | u8 tsc[6]; |
681 | |
682 | /* |
683 | * For AP case, keyid will have aid of STA which sent pkt with |
684 | * MIC error. Use this aid to get MAC & send it to hostapd. |
685 | */ |
686 | if (vif->nw_type == AP_NETWORK) { |
687 | sta = ath6kl_find_sta_by_aid(ar, aid: (keyid >> 2)); |
688 | if (!sta) |
689 | return; |
690 | |
691 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, |
692 | fmt: "ap tkip mic error received from aid=%d\n" , keyid); |
693 | |
694 | memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ |
695 | cfg80211_michael_mic_failure(dev: vif->ndev, addr: sta->mac, |
696 | key_type: NL80211_KEYTYPE_PAIRWISE, key_id: keyid, |
697 | tsc, GFP_KERNEL); |
698 | } else { |
699 | ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); |
700 | } |
701 | } |
702 | |
703 | static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
704 | { |
705 | struct wmi_target_stats *tgt_stats = |
706 | (struct wmi_target_stats *) ptr; |
707 | struct ath6kl *ar = vif->ar; |
708 | struct target_stats *stats = &vif->target_stats; |
709 | struct tkip_ccmp_stats *ccmp_stats; |
710 | s32 rate; |
711 | u8 ac; |
712 | |
713 | if (len < sizeof(*tgt_stats)) |
714 | return; |
715 | |
716 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, fmt: "updating target stats\n" ); |
717 | |
718 | stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); |
719 | stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); |
720 | stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); |
721 | stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); |
722 | stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); |
723 | stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); |
724 | stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); |
725 | stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); |
726 | stats->tx_rts_success_cnt += |
727 | le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); |
728 | |
729 | for (ac = 0; ac < WMM_NUM_AC; ac++) |
730 | stats->tx_pkt_per_ac[ac] += |
731 | le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); |
732 | |
733 | stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); |
734 | stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); |
735 | stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); |
736 | stats->tx_mult_retry_cnt += |
737 | le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); |
738 | stats->tx_rts_fail_cnt += |
739 | le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); |
740 | |
741 | rate = a_sle32_to_cpu(val: tgt_stats->stats.tx.ucast_rate); |
742 | stats->tx_ucast_rate = ath6kl_wmi_get_rate(wmi: ar->wmi, rate_index: rate); |
743 | |
744 | stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); |
745 | stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); |
746 | stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); |
747 | stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); |
748 | stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); |
749 | stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); |
750 | stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); |
751 | stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); |
752 | stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); |
753 | stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); |
754 | stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); |
755 | stats->rx_key_cache_miss += |
756 | le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); |
757 | stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); |
758 | stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); |
759 | |
760 | rate = a_sle32_to_cpu(val: tgt_stats->stats.rx.ucast_rate); |
761 | stats->rx_ucast_rate = ath6kl_wmi_get_rate(wmi: ar->wmi, rate_index: rate); |
762 | |
763 | ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; |
764 | |
765 | stats->tkip_local_mic_fail += |
766 | le32_to_cpu(ccmp_stats->tkip_local_mic_fail); |
767 | stats->tkip_cnter_measures_invoked += |
768 | le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); |
769 | stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); |
770 | |
771 | stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); |
772 | stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); |
773 | |
774 | stats->pwr_save_fail_cnt += |
775 | le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); |
776 | stats->noise_floor_calib = |
777 | a_sle32_to_cpu(val: tgt_stats->noise_floor_calib); |
778 | |
779 | stats->cs_bmiss_cnt += |
780 | le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); |
781 | stats->cs_low_rssi_cnt += |
782 | le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); |
783 | stats->cs_connect_cnt += |
784 | le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); |
785 | stats->cs_discon_cnt += |
786 | le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); |
787 | |
788 | stats->cs_ave_beacon_rssi = |
789 | a_sle16_to_cpu(val: tgt_stats->cserv_stats.cs_ave_beacon_rssi); |
790 | |
791 | stats->cs_last_roam_msec = |
792 | tgt_stats->cserv_stats.cs_last_roam_msec; |
793 | stats->cs_snr = tgt_stats->cserv_stats.cs_snr; |
794 | stats->cs_rssi = a_sle16_to_cpu(val: tgt_stats->cserv_stats.cs_rssi); |
795 | |
796 | stats->lq_val = le32_to_cpu(tgt_stats->lq_val); |
797 | |
798 | stats->wow_pkt_dropped += |
799 | le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); |
800 | stats->wow_host_pkt_wakeups += |
801 | tgt_stats->wow_stats.wow_host_pkt_wakeups; |
802 | stats->wow_host_evt_wakeups += |
803 | tgt_stats->wow_stats.wow_host_evt_wakeups; |
804 | stats->wow_evt_discarded += |
805 | le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); |
806 | |
807 | stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received); |
808 | stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied); |
809 | stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched); |
810 | |
811 | if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { |
812 | clear_bit(nr: STATS_UPDATE_PEND, addr: &vif->flags); |
813 | wake_up(&ar->event_wq); |
814 | } |
815 | } |
816 | |
817 | static void ath6kl_add_le32(__le32 *var, __le32 val) |
818 | { |
819 | *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); |
820 | } |
821 | |
822 | void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
823 | { |
824 | struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; |
825 | struct ath6kl *ar = vif->ar; |
826 | struct wmi_ap_mode_stat *ap = &ar->ap_stats; |
827 | struct wmi_per_sta_stat *st_ap, *st_p; |
828 | u8 ac; |
829 | |
830 | if (vif->nw_type == AP_NETWORK) { |
831 | if (len < sizeof(*p)) |
832 | return; |
833 | |
834 | for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { |
835 | st_ap = &ap->sta[ac]; |
836 | st_p = &p->sta[ac]; |
837 | |
838 | ath6kl_add_le32(var: &st_ap->tx_bytes, val: st_p->tx_bytes); |
839 | ath6kl_add_le32(var: &st_ap->tx_pkts, val: st_p->tx_pkts); |
840 | ath6kl_add_le32(var: &st_ap->tx_error, val: st_p->tx_error); |
841 | ath6kl_add_le32(var: &st_ap->tx_discard, val: st_p->tx_discard); |
842 | ath6kl_add_le32(var: &st_ap->rx_bytes, val: st_p->rx_bytes); |
843 | ath6kl_add_le32(var: &st_ap->rx_pkts, val: st_p->rx_pkts); |
844 | ath6kl_add_le32(var: &st_ap->rx_error, val: st_p->rx_error); |
845 | ath6kl_add_le32(var: &st_ap->rx_discard, val: st_p->rx_discard); |
846 | } |
847 | |
848 | } else { |
849 | ath6kl_update_target_stats(vif, ptr, len); |
850 | } |
851 | } |
852 | |
853 | void ath6kl_wakeup_event(void *dev) |
854 | { |
855 | struct ath6kl *ar = dev; |
856 | |
857 | wake_up(&ar->event_wq); |
858 | } |
859 | |
860 | void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) |
861 | { |
862 | struct ath6kl *ar = devt; |
863 | |
864 | ar->tx_pwr = tx_pwr; |
865 | wake_up(&ar->event_wq); |
866 | } |
867 | |
868 | void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) |
869 | { |
870 | struct ath6kl_sta *conn; |
871 | struct sk_buff *skb; |
872 | bool psq_empty = false; |
873 | struct ath6kl *ar = vif->ar; |
874 | struct ath6kl_mgmt_buff *mgmt_buf; |
875 | |
876 | conn = ath6kl_find_sta_by_aid(ar, aid); |
877 | |
878 | if (!conn) |
879 | return; |
880 | /* |
881 | * Send out a packet queued on ps queue. When the ps queue |
882 | * becomes empty update the PVB for this station. |
883 | */ |
884 | spin_lock_bh(lock: &conn->psq_lock); |
885 | psq_empty = skb_queue_empty(list: &conn->psq) && (conn->mgmt_psq_len == 0); |
886 | spin_unlock_bh(lock: &conn->psq_lock); |
887 | |
888 | if (psq_empty) |
889 | /* TODO: Send out a NULL data frame */ |
890 | return; |
891 | |
892 | spin_lock_bh(lock: &conn->psq_lock); |
893 | if (conn->mgmt_psq_len > 0) { |
894 | mgmt_buf = list_first_entry(&conn->mgmt_psq, |
895 | struct ath6kl_mgmt_buff, list); |
896 | list_del(entry: &mgmt_buf->list); |
897 | conn->mgmt_psq_len--; |
898 | spin_unlock_bh(lock: &conn->psq_lock); |
899 | |
900 | conn->sta_flags |= STA_PS_POLLED; |
901 | ath6kl_wmi_send_mgmt_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
902 | id: mgmt_buf->id, freq: mgmt_buf->freq, |
903 | wait: mgmt_buf->wait, data: mgmt_buf->buf, |
904 | data_len: mgmt_buf->len, no_cck: mgmt_buf->no_cck); |
905 | conn->sta_flags &= ~STA_PS_POLLED; |
906 | kfree(objp: mgmt_buf); |
907 | } else { |
908 | skb = skb_dequeue(list: &conn->psq); |
909 | spin_unlock_bh(lock: &conn->psq_lock); |
910 | |
911 | conn->sta_flags |= STA_PS_POLLED; |
912 | ath6kl_data_tx(skb, dev: vif->ndev); |
913 | conn->sta_flags &= ~STA_PS_POLLED; |
914 | } |
915 | |
916 | spin_lock_bh(lock: &conn->psq_lock); |
917 | psq_empty = skb_queue_empty(list: &conn->psq) && (conn->mgmt_psq_len == 0); |
918 | spin_unlock_bh(lock: &conn->psq_lock); |
919 | |
920 | if (psq_empty) |
921 | ath6kl_wmi_set_pvb_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, aid: conn->aid, flag: 0); |
922 | } |
923 | |
924 | void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) |
925 | { |
926 | bool mcastq_empty = false; |
927 | struct sk_buff *skb; |
928 | struct ath6kl *ar = vif->ar; |
929 | |
930 | /* |
931 | * If there are no associated STAs, ignore the DTIM expiry event. |
932 | * There can be potential race conditions where the last associated |
933 | * STA may disconnect & before the host could clear the 'Indicate |
934 | * DTIM' request to the firmware, the firmware would have just |
935 | * indicated a DTIM expiry event. The race is between 'clear DTIM |
936 | * expiry cmd' going from the host to the firmware & the DTIM |
937 | * expiry event happening from the firmware to the host. |
938 | */ |
939 | if (!ar->sta_list_index) |
940 | return; |
941 | |
942 | spin_lock_bh(lock: &ar->mcastpsq_lock); |
943 | mcastq_empty = skb_queue_empty(list: &ar->mcastpsq); |
944 | spin_unlock_bh(lock: &ar->mcastpsq_lock); |
945 | |
946 | if (mcastq_empty) |
947 | return; |
948 | |
949 | /* set the STA flag to dtim_expired for the frame to go out */ |
950 | set_bit(nr: DTIM_EXPIRED, addr: &vif->flags); |
951 | |
952 | spin_lock_bh(lock: &ar->mcastpsq_lock); |
953 | while ((skb = skb_dequeue(list: &ar->mcastpsq)) != NULL) { |
954 | spin_unlock_bh(lock: &ar->mcastpsq_lock); |
955 | |
956 | ath6kl_data_tx(skb, dev: vif->ndev); |
957 | |
958 | spin_lock_bh(lock: &ar->mcastpsq_lock); |
959 | } |
960 | spin_unlock_bh(lock: &ar->mcastpsq_lock); |
961 | |
962 | clear_bit(nr: DTIM_EXPIRED, addr: &vif->flags); |
963 | |
964 | /* clear the LSB of the BitMapCtl field of the TIM IE */ |
965 | ath6kl_wmi_set_pvb_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, MCAST_AID, flag: 0); |
966 | } |
967 | |
968 | void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, |
969 | u8 assoc_resp_len, u8 *assoc_info, |
970 | u16 prot_reason_status) |
971 | { |
972 | struct ath6kl *ar = vif->ar; |
973 | |
974 | if (vif->nw_type == AP_NETWORK) { |
975 | /* disconnect due to other STA vif switching channels */ |
976 | if (reason == BSS_DISCONNECTED && |
977 | prot_reason_status == WMI_AP_REASON_STA_ROAM) { |
978 | ar->want_ch_switch |= 1 << vif->fw_vif_idx; |
979 | /* bail back to this channel if STA vif fails connect */ |
980 | ar->last_ch = le16_to_cpu(vif->profile.ch); |
981 | } |
982 | |
983 | if (prot_reason_status == WMI_AP_REASON_MAX_STA) { |
984 | /* send max client reached notification to user space */ |
985 | cfg80211_conn_failed(dev: vif->ndev, mac_addr: bssid, |
986 | reason: NL80211_CONN_FAIL_MAX_CLIENTS, |
987 | GFP_KERNEL); |
988 | } |
989 | |
990 | if (prot_reason_status == WMI_AP_REASON_ACL) { |
991 | /* send blocked client notification to user space */ |
992 | cfg80211_conn_failed(dev: vif->ndev, mac_addr: bssid, |
993 | reason: NL80211_CONN_FAIL_BLOCKED_CLIENT, |
994 | GFP_KERNEL); |
995 | } |
996 | |
997 | if (!ath6kl_remove_sta(ar, mac: bssid, reason: prot_reason_status)) |
998 | return; |
999 | |
1000 | /* if no more associated STAs, empty the mcast PS q */ |
1001 | if (ar->sta_list_index == 0) { |
1002 | spin_lock_bh(lock: &ar->mcastpsq_lock); |
1003 | skb_queue_purge(list: &ar->mcastpsq); |
1004 | spin_unlock_bh(lock: &ar->mcastpsq_lock); |
1005 | |
1006 | /* clear the LSB of the TIM IE's BitMapCtl field */ |
1007 | if (test_bit(WMI_READY, &ar->flag)) |
1008 | ath6kl_wmi_set_pvb_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
1009 | MCAST_AID, flag: 0); |
1010 | } |
1011 | |
1012 | if (!is_broadcast_ether_addr(addr: bssid)) { |
1013 | /* send event to application */ |
1014 | cfg80211_del_sta(dev: vif->ndev, mac_addr: bssid, GFP_KERNEL); |
1015 | } |
1016 | |
1017 | if (memcmp(p: vif->ndev->dev_addr, q: bssid, ETH_ALEN) == 0) { |
1018 | memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); |
1019 | clear_bit(nr: CONNECTED, addr: &vif->flags); |
1020 | } |
1021 | return; |
1022 | } |
1023 | |
1024 | ath6kl_cfg80211_disconnect_event(vif, reason, bssid, |
1025 | assoc_resp_len, assoc_info, |
1026 | proto_reason: prot_reason_status); |
1027 | |
1028 | aggr_reset_state(aggr_conn: vif->aggr_cntxt->aggr_conn); |
1029 | |
1030 | del_timer(timer: &vif->disconnect_timer); |
1031 | |
1032 | ath6kl_dbg(mask: ATH6KL_DBG_WLAN_CFG, fmt: "disconnect reason is %d\n" , reason); |
1033 | |
1034 | /* |
1035 | * If the event is due to disconnect cmd from the host, only they |
1036 | * the target would stop trying to connect. Under any other |
1037 | * condition, target would keep trying to connect. |
1038 | */ |
1039 | if (reason == DISCONNECT_CMD) { |
1040 | if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) |
1041 | ath6kl_wmi_bssfilter_cmd(wmi: ar->wmi, if_idx: vif->fw_vif_idx, |
1042 | filter: NONE_BSS_FILTER, ie_mask: 0); |
1043 | } else { |
1044 | set_bit(nr: CONNECT_PEND, addr: &vif->flags); |
1045 | if (((reason == ASSOC_FAILED) && |
1046 | (prot_reason_status == 0x11)) || |
1047 | ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) && |
1048 | (vif->reconnect_flag == 1))) { |
1049 | set_bit(nr: CONNECTED, addr: &vif->flags); |
1050 | return; |
1051 | } |
1052 | } |
1053 | |
1054 | /* restart disconnected concurrent vifs waiting for new channel */ |
1055 | ath6kl_check_ch_switch(ar, channel: ar->last_ch); |
1056 | |
1057 | /* update connect & link status atomically */ |
1058 | spin_lock_bh(lock: &vif->if_lock); |
1059 | clear_bit(nr: CONNECTED, addr: &vif->flags); |
1060 | netif_carrier_off(dev: vif->ndev); |
1061 | spin_unlock_bh(lock: &vif->if_lock); |
1062 | |
1063 | if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) |
1064 | vif->reconnect_flag = 0; |
1065 | |
1066 | if (reason != CSERV_DISCONNECT) |
1067 | ar->user_key_ctrl = 0; |
1068 | |
1069 | netif_stop_queue(dev: vif->ndev); |
1070 | memset(vif->bssid, 0, sizeof(vif->bssid)); |
1071 | vif->bss_ch = 0; |
1072 | |
1073 | ath6kl_tx_data_cleanup(ar); |
1074 | } |
1075 | |
1076 | struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) |
1077 | { |
1078 | struct ath6kl_vif *vif; |
1079 | |
1080 | spin_lock_bh(lock: &ar->list_lock); |
1081 | if (list_empty(head: &ar->vif_list)) { |
1082 | spin_unlock_bh(lock: &ar->list_lock); |
1083 | return NULL; |
1084 | } |
1085 | |
1086 | vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); |
1087 | |
1088 | spin_unlock_bh(lock: &ar->list_lock); |
1089 | |
1090 | return vif; |
1091 | } |
1092 | |
1093 | static int ath6kl_open(struct net_device *dev) |
1094 | { |
1095 | struct ath6kl_vif *vif = netdev_priv(dev); |
1096 | |
1097 | set_bit(nr: WLAN_ENABLED, addr: &vif->flags); |
1098 | |
1099 | if (test_bit(CONNECTED, &vif->flags)) { |
1100 | netif_carrier_on(dev); |
1101 | netif_wake_queue(dev); |
1102 | } else { |
1103 | netif_carrier_off(dev); |
1104 | } |
1105 | |
1106 | return 0; |
1107 | } |
1108 | |
1109 | static int ath6kl_close(struct net_device *dev) |
1110 | { |
1111 | struct ath6kl_vif *vif = netdev_priv(dev); |
1112 | |
1113 | netif_stop_queue(dev); |
1114 | |
1115 | ath6kl_cfg80211_stop(vif); |
1116 | |
1117 | clear_bit(nr: WLAN_ENABLED, addr: &vif->flags); |
1118 | |
1119 | return 0; |
1120 | } |
1121 | |
1122 | static int ath6kl_set_features(struct net_device *dev, |
1123 | netdev_features_t features) |
1124 | { |
1125 | struct ath6kl_vif *vif = netdev_priv(dev); |
1126 | struct ath6kl *ar = vif->ar; |
1127 | int err = 0; |
1128 | |
1129 | if ((features & NETIF_F_RXCSUM) && |
1130 | (ar->rx_meta_ver != WMI_META_VERSION_2)) { |
1131 | ar->rx_meta_ver = WMI_META_VERSION_2; |
1132 | err = ath6kl_wmi_set_rx_frame_format_cmd(wmi: ar->wmi, |
1133 | if_idx: vif->fw_vif_idx, |
1134 | rx_meta_version: ar->rx_meta_ver, rx_dot11_hdr: 0, defrag_on_host: 0); |
1135 | if (err) { |
1136 | dev->features = features & ~NETIF_F_RXCSUM; |
1137 | return err; |
1138 | } |
1139 | } else if (!(features & NETIF_F_RXCSUM) && |
1140 | (ar->rx_meta_ver == WMI_META_VERSION_2)) { |
1141 | ar->rx_meta_ver = 0; |
1142 | err = ath6kl_wmi_set_rx_frame_format_cmd(wmi: ar->wmi, |
1143 | if_idx: vif->fw_vif_idx, |
1144 | rx_meta_version: ar->rx_meta_ver, rx_dot11_hdr: 0, defrag_on_host: 0); |
1145 | if (err) { |
1146 | dev->features = features | NETIF_F_RXCSUM; |
1147 | return err; |
1148 | } |
1149 | } |
1150 | |
1151 | return err; |
1152 | } |
1153 | |
1154 | static void ath6kl_set_multicast_list(struct net_device *ndev) |
1155 | { |
1156 | struct ath6kl_vif *vif = netdev_priv(dev: ndev); |
1157 | bool mc_all_on = false; |
1158 | int mc_count = netdev_mc_count(ndev); |
1159 | struct netdev_hw_addr *ha; |
1160 | bool found; |
1161 | struct ath6kl_mc_filter *mc_filter, *tmp; |
1162 | struct list_head mc_filter_new; |
1163 | int ret; |
1164 | |
1165 | if (!test_bit(WMI_READY, &vif->ar->flag) || |
1166 | !test_bit(WLAN_ENABLED, &vif->flags)) |
1167 | return; |
1168 | |
1169 | /* Enable multicast-all filter. */ |
1170 | mc_all_on = !!(ndev->flags & IFF_PROMISC) || |
1171 | !!(ndev->flags & IFF_ALLMULTI) || |
1172 | !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST); |
1173 | |
1174 | if (mc_all_on) |
1175 | set_bit(nr: NETDEV_MCAST_ALL_ON, addr: &vif->flags); |
1176 | else |
1177 | clear_bit(nr: NETDEV_MCAST_ALL_ON, addr: &vif->flags); |
1178 | |
1179 | if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, |
1180 | vif->ar->fw_capabilities)) { |
1181 | mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON); |
1182 | } |
1183 | |
1184 | if (!(ndev->flags & IFF_MULTICAST)) { |
1185 | mc_all_on = false; |
1186 | set_bit(nr: NETDEV_MCAST_ALL_OFF, addr: &vif->flags); |
1187 | } else { |
1188 | clear_bit(nr: NETDEV_MCAST_ALL_OFF, addr: &vif->flags); |
1189 | } |
1190 | |
1191 | /* Enable/disable "multicast-all" filter*/ |
1192 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, fmt: "%s multicast-all filter\n" , |
1193 | mc_all_on ? "enabling" : "disabling" ); |
1194 | |
1195 | ret = ath6kl_wmi_mcast_filter_cmd(wmi: vif->ar->wmi, if_idx: vif->fw_vif_idx, |
1196 | mc_all_on); |
1197 | if (ret) { |
1198 | ath6kl_warn(fmt: "Failed to %s multicast-all receive\n" , |
1199 | mc_all_on ? "enable" : "disable" ); |
1200 | return; |
1201 | } |
1202 | |
1203 | if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags)) |
1204 | return; |
1205 | |
1206 | /* Keep the driver and firmware mcast list in sync. */ |
1207 | list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { |
1208 | found = false; |
1209 | netdev_for_each_mc_addr(ha, ndev) { |
1210 | if (memcmp(p: ha->addr, q: mc_filter->hw_addr, |
1211 | ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { |
1212 | found = true; |
1213 | break; |
1214 | } |
1215 | } |
1216 | |
1217 | if (!found) { |
1218 | /* |
1219 | * Delete the filter which was previously set |
1220 | * but not in the new request. |
1221 | */ |
1222 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, |
1223 | fmt: "Removing %pM from multicast filter\n" , |
1224 | mc_filter->hw_addr); |
1225 | ret = ath6kl_wmi_add_del_mcast_filter_cmd(wmi: vif->ar->wmi, |
1226 | if_idx: vif->fw_vif_idx, filter: mc_filter->hw_addr, |
1227 | add_filter: false); |
1228 | if (ret) { |
1229 | ath6kl_warn(fmt: "Failed to remove multicast filter:%pM\n" , |
1230 | mc_filter->hw_addr); |
1231 | return; |
1232 | } |
1233 | |
1234 | list_del(entry: &mc_filter->list); |
1235 | kfree(objp: mc_filter); |
1236 | } |
1237 | } |
1238 | |
1239 | INIT_LIST_HEAD(list: &mc_filter_new); |
1240 | |
1241 | netdev_for_each_mc_addr(ha, ndev) { |
1242 | found = false; |
1243 | list_for_each_entry(mc_filter, &vif->mc_filter, list) { |
1244 | if (memcmp(p: ha->addr, q: mc_filter->hw_addr, |
1245 | ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { |
1246 | found = true; |
1247 | break; |
1248 | } |
1249 | } |
1250 | |
1251 | if (!found) { |
1252 | mc_filter = kzalloc(size: sizeof(struct ath6kl_mc_filter), |
1253 | GFP_ATOMIC); |
1254 | if (!mc_filter) { |
1255 | WARN_ON(1); |
1256 | goto out; |
1257 | } |
1258 | |
1259 | memcpy(mc_filter->hw_addr, ha->addr, |
1260 | ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE); |
1261 | /* Set the multicast filter */ |
1262 | ath6kl_dbg(mask: ATH6KL_DBG_TRC, |
1263 | fmt: "Adding %pM to multicast filter list\n" , |
1264 | mc_filter->hw_addr); |
1265 | ret = ath6kl_wmi_add_del_mcast_filter_cmd(wmi: vif->ar->wmi, |
1266 | if_idx: vif->fw_vif_idx, filter: mc_filter->hw_addr, |
1267 | add_filter: true); |
1268 | if (ret) { |
1269 | ath6kl_warn(fmt: "Failed to add multicast filter :%pM\n" , |
1270 | mc_filter->hw_addr); |
1271 | kfree(objp: mc_filter); |
1272 | goto out; |
1273 | } |
1274 | |
1275 | list_add_tail(new: &mc_filter->list, head: &mc_filter_new); |
1276 | } |
1277 | } |
1278 | |
1279 | out: |
1280 | list_splice_tail(list: &mc_filter_new, head: &vif->mc_filter); |
1281 | } |
1282 | |
1283 | static const struct net_device_ops ath6kl_netdev_ops = { |
1284 | .ndo_open = ath6kl_open, |
1285 | .ndo_stop = ath6kl_close, |
1286 | .ndo_start_xmit = ath6kl_data_tx, |
1287 | .ndo_set_features = ath6kl_set_features, |
1288 | .ndo_set_rx_mode = ath6kl_set_multicast_list, |
1289 | }; |
1290 | |
1291 | void init_netdev(struct net_device *dev) |
1292 | { |
1293 | struct ath6kl *ar = ath6kl_priv(dev); |
1294 | |
1295 | dev->netdev_ops = &ath6kl_netdev_ops; |
1296 | dev->needs_free_netdev = true; |
1297 | dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; |
1298 | |
1299 | dev->needed_headroom = ETH_HLEN; |
1300 | dev->needed_headroom += roundup(sizeof(struct ath6kl_llc_snap_hdr) + |
1301 | sizeof(struct wmi_data_hdr) + |
1302 | HTC_HDR_LENGTH + |
1303 | WMI_MAX_TX_META_SZ + |
1304 | ATH6KL_HTC_ALIGN_BYTES, 4); |
1305 | |
1306 | if (!test_bit(ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM, |
1307 | ar->fw_capabilities)) |
1308 | dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; |
1309 | |
1310 | return; |
1311 | } |
1312 | |