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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
26struct 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(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(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) {
39 conn = &ar->sta_list[i];
40 break;
41 }
42 }
43
44 return conn;
45}
46
47struct 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
61static 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, vif->aggr_cntxt, sta->aggr_conn);
84}
85
86static 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(&sta->psq_lock);
93 skb_queue_purge(&sta->psq);
94 skb_queue_purge(&sta->apsdq);
95
96 if (sta->mgmt_psq_len != 0) {
97 list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) {
98 kfree(entry);
99 }
100 INIT_LIST_HEAD(&sta->mgmt_psq);
101 sta->mgmt_psq_len = 0;
102 }
103
104 spin_unlock_bh(&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(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(sta->aggr_conn);
115}
116
117static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason)
118{
119 u8 i, removed = 0;
120
121 if (is_zero_ether_addr(mac))
122 return removed;
123
124 if (is_broadcast_ether_addr(mac)) {
125 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n");
126
127 for (i = 0; i < AP_MAX_NUM_STA; i++) {
128 if (!is_zero_ether_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(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) {
136 ath6kl_dbg(ATH6KL_DBG_TRC,
137 "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
149enum 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
155struct 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
168void 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, &ar->cookie_mem[i]);
179}
180
181void ath6kl_cookie_cleanup(struct ath6kl *ar)
182{
183 ar->cookie_list = NULL;
184 ar->cookie_count = 0;
185}
186
187void 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 */
203int 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("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 */
221int 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("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
236int 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, &buf[count]);
246 if (ret)
247 return ret;
248 }
249
250 return 0;
251}
252
253int 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, buf[count]);
264 if (ret)
265 return ret;
266 }
267
268 return 0;
269}
270
271int 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, &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("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, &debug_hdr, 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, &debug_buf, 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 buf, length);
323 if (ret)
324 goto out;
325
326 ath6kl_debug_fwlog_event(ar, buf, length);
327 }
328
329 address = TARG_VTOP(ar->target_type,
330 le32_to_cpu(debug_buf.next));
331 ret = ath6kl_diag_read(ar, address, &debug_buf,
332 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
344out:
345 kfree(buf);
346
347 return ret;
348}
349
350static 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(vif->ar->wmi, vif->fw_vif_idx,
362 index,
363 WEP_CRYPT,
364 keyusage,
365 vif->wep_key_list[index].key_len,
366 NULL, 0,
367 vif->wep_key_list[index].key,
368 KEY_OP_INIT_VAL, NULL,
369 NO_SYNC_WMIFLAG);
370 }
371 }
372}
373
374void 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(ATH6KL_DBG_WLAN_CFG, "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 /* fall through */
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(ATH6KL_DBG_WLAN_CFG,
400 "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 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type,
404 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN,
405 ik->key,
406 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG);
407 if (res) {
408 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG,
409 "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, channel, WMI_11G_HT20);
417
418 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0);
419 set_bit(CONNECTED, &vif->flags);
420 netif_carrier_on(vif->ndev);
421}
422
423void 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(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid);
432
433 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) {
434 struct ieee80211_mgmt *mgmt =
435 (struct ieee80211_mgmt *) assoc_info;
436 if (ieee80211_is_assoc_req(mgmt->frame_control) &&
437 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) +
438 sizeof(mgmt->u.assoc_req)) {
439 ies = mgmt->u.assoc_req.variable;
440 ies_len = assoc_info + assoc_req_len - ies;
441 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) &&
442 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr)
443 + sizeof(mgmt->u.reassoc_req)) {
444 ies = mgmt->u.reassoc_req.variable;
445 ies_len = assoc_info + assoc_req_len - ies;
446 }
447 }
448
449 pos = ies;
450 while (pos && pos + 1 < ies + ies_len) {
451 if (pos + 2 + pos[1] > ies + ies_len)
452 break;
453 if (pos[0] == WLAN_EID_RSN)
454 wpa_ie = pos; /* RSN IE */
455 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC &&
456 pos[1] >= 4 &&
457 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) {
458 if (pos[5] == 0x01)
459 wpa_ie = pos; /* WPA IE */
460 else if (pos[5] == 0x04) {
461 wpa_ie = pos; /* WPS IE */
462 break; /* overrides WPA/RSN IE */
463 }
464 } else if (pos[0] == 0x44 && wpa_ie == NULL) {
465 /*
466 * Note: WAPI Parameter Set IE re-uses Element ID that
467 * was officially allocated for BSS AC Access Delay. As
468 * such, we need to be a bit more careful on when
469 * parsing the frame. However, BSS AC Access Delay
470 * element is not supposed to be included in
471 * (Re)Association Request frames, so this should not
472 * cause problems.
473 */
474 wpa_ie = pos; /* WAPI IE */
475 break;
476 }
477 pos += 2 + pos[1];
478 }
479
480 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie,
481 wpa_ie ? 2 + wpa_ie[1] : 0,
482 keymgmt, ucipher, auth, apsd_info);
483
484 /* send event to application */
485 sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL);
486 if (!sinfo)
487 return;
488
489 /* TODO: sinfo.generation */
490
491 sinfo->assoc_req_ies = ies;
492 sinfo->assoc_req_ies_len = ies_len;
493
494 cfg80211_new_sta(vif->ndev, mac_addr, sinfo, GFP_KERNEL);
495
496 netif_wake_queue(vif->ndev);
497
498 kfree(sinfo);
499}
500
501void disconnect_timer_handler(struct timer_list *t)
502{
503 struct ath6kl_vif *vif = from_timer(vif, t, disconnect_timer);
504
505 ath6kl_init_profile_info(vif);
506 ath6kl_disconnect(vif);
507}
508
509void ath6kl_disconnect(struct ath6kl_vif *vif)
510{
511 if (test_bit(CONNECTED, &vif->flags) ||
512 test_bit(CONNECT_PEND, &vif->flags)) {
513 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx);
514 /*
515 * Disconnect command is issued, clear the connect pending
516 * flag. The connected flag will be cleared in
517 * disconnect event notification.
518 */
519 clear_bit(CONNECT_PEND, &vif->flags);
520 }
521}
522
523/* WMI Event handlers */
524
525void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver,
526 enum wmi_phy_cap cap)
527{
528 struct ath6kl *ar = devt;
529
530 memcpy(ar->mac_addr, datap, ETH_ALEN);
531
532 ath6kl_dbg(ATH6KL_DBG_BOOT,
533 "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n",
534 ar->mac_addr, sw_ver, abi_ver, cap);
535
536 ar->version.wlan_ver = sw_ver;
537 ar->version.abi_ver = abi_ver;
538 ar->hw.cap = cap;
539
540 if (strlen(ar->wiphy->fw_version) == 0) {
541 snprintf(ar->wiphy->fw_version,
542 sizeof(ar->wiphy->fw_version),
543 "%u.%u.%u.%u",
544 (ar->version.wlan_ver & 0xf0000000) >> 28,
545 (ar->version.wlan_ver & 0x0f000000) >> 24,
546 (ar->version.wlan_ver & 0x00ff0000) >> 16,
547 (ar->version.wlan_ver & 0x0000ffff));
548 }
549
550 /* indicate to the waiting thread that the ready event was received */
551 set_bit(WMI_READY, &ar->flag);
552 wake_up(&ar->event_wq);
553}
554
555void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status)
556{
557 struct ath6kl *ar = vif->ar;
558 bool aborted = false;
559
560 if (status != WMI_SCAN_STATUS_SUCCESS)
561 aborted = true;
562
563 ath6kl_cfg80211_scan_complete_event(vif, aborted);
564
565 if (!ar->usr_bss_filter) {
566 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
567 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
568 NONE_BSS_FILTER, 0);
569 }
570
571 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);
572}
573
574static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel)
575{
576 struct ath6kl *ar = vif->ar;
577
578 vif->profile.ch = cpu_to_le16(channel);
579
580 switch (vif->nw_type) {
581 case AP_NETWORK:
582 /*
583 * reconfigure any saved RSN IE capabilites in the beacon /
584 * probe response to stay in sync with the supplicant.
585 */
586 if (vif->rsn_capab &&
587 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE,
588 ar->fw_capabilities))
589 ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx,
590 WLAN_EID_RSN, WMI_RSN_IE_CAPB,
591 (const u8 *) &vif->rsn_capab,
592 sizeof(vif->rsn_capab));
593
594 return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx,
595 &vif->profile);
596 default:
597 ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type);
598 return -ENOTSUPP;
599 }
600}
601
602static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel)
603{
604 struct ath6kl_vif *vif;
605 int res = 0;
606
607 if (!ar->want_ch_switch)
608 return;
609
610 spin_lock_bh(&ar->list_lock);
611 list_for_each_entry(vif, &ar->vif_list, list) {
612 if (ar->want_ch_switch & (1 << vif->fw_vif_idx))
613 res = ath6kl_commit_ch_switch(vif, channel);
614
615 /* if channel switch failed, oh well we tried */
616 ar->want_ch_switch &= ~(1 << vif->fw_vif_idx);
617
618 if (res)
619 ath6kl_err("channel switch failed nw_type %d res %d\n",
620 vif->nw_type, res);
621 }
622 spin_unlock_bh(&ar->list_lock);
623}
624
625void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid,
626 u16 listen_int, u16 beacon_int,
627 enum network_type net_type, u8 beacon_ie_len,
628 u8 assoc_req_len, u8 assoc_resp_len,
629 u8 *assoc_info)
630{
631 struct ath6kl *ar = vif->ar;
632
633 ath6kl_cfg80211_connect_event(vif, channel, bssid,
634 listen_int, beacon_int,
635 net_type, beacon_ie_len,
636 assoc_req_len, assoc_resp_len,
637 assoc_info);
638
639 memcpy(vif->bssid, bssid, sizeof(vif->bssid));
640 vif->bss_ch = channel;
641
642 if (vif->nw_type == INFRA_NETWORK) {
643 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx,
644 vif->listen_intvl_t, 0);
645 ath6kl_check_ch_switch(ar, channel);
646 }
647
648 netif_wake_queue(vif->ndev);
649
650 /* Update connect & link status atomically */
651 spin_lock_bh(&vif->if_lock);
652 set_bit(CONNECTED, &vif->flags);
653 clear_bit(CONNECT_PEND, &vif->flags);
654 netif_carrier_on(vif->ndev);
655 spin_unlock_bh(&vif->if_lock);
656
657 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
658 vif->reconnect_flag = 0;
659
660 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) {
661 memset(ar->node_map, 0, sizeof(ar->node_map));
662 ar->node_num = 0;
663 ar->next_ep_id = ENDPOINT_2;
664 }
665
666 if (!ar->usr_bss_filter) {
667 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);
668 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
669 CURRENT_BSS_FILTER, 0);
670 }
671}
672
673void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast)
674{
675 struct ath6kl_sta *sta;
676 struct ath6kl *ar = vif->ar;
677 u8 tsc[6];
678
679 /*
680 * For AP case, keyid will have aid of STA which sent pkt with
681 * MIC error. Use this aid to get MAC & send it to hostapd.
682 */
683 if (vif->nw_type == AP_NETWORK) {
684 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2));
685 if (!sta)
686 return;
687
688 ath6kl_dbg(ATH6KL_DBG_TRC,
689 "ap tkip mic error received from aid=%d\n", keyid);
690
691 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */
692 cfg80211_michael_mic_failure(vif->ndev, sta->mac,
693 NL80211_KEYTYPE_PAIRWISE, keyid,
694 tsc, GFP_KERNEL);
695 } else {
696 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);
697 }
698}
699
700static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len)
701{
702 struct wmi_target_stats *tgt_stats =
703 (struct wmi_target_stats *) ptr;
704 struct ath6kl *ar = vif->ar;
705 struct target_stats *stats = &vif->target_stats;
706 struct tkip_ccmp_stats *ccmp_stats;
707 s32 rate;
708 u8 ac;
709
710 if (len < sizeof(*tgt_stats))
711 return;
712
713 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n");
714
715 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt);
716 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte);
717 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt);
718 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte);
719 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt);
720 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte);
721 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt);
722 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte);
723 stats->tx_rts_success_cnt +=
724 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt);
725
726 for (ac = 0; ac < WMM_NUM_AC; ac++)
727 stats->tx_pkt_per_ac[ac] +=
728 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]);
729
730 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err);
731 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt);
732 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt);
733 stats->tx_mult_retry_cnt +=
734 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt);
735 stats->tx_rts_fail_cnt +=
736 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt);
737
738 rate = a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate);
739 stats->tx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate);
740
741 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt);
742 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte);
743 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt);
744 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte);
745 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt);
746 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte);
747 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt);
748 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte);
749 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt);
750 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err);
751 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err);
752 stats->rx_key_cache_miss +=
753 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss);
754 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err);
755 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame);
756
757 rate = a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate);
758 stats->rx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate);
759
760 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats;
761
762 stats->tkip_local_mic_fail +=
763 le32_to_cpu(ccmp_stats->tkip_local_mic_fail);
764 stats->tkip_cnter_measures_invoked +=
765 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked);
766 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err);
767
768 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err);
769 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays);
770
771 stats->pwr_save_fail_cnt +=
772 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt);
773 stats->noise_floor_calib =
774 a_sle32_to_cpu(tgt_stats->noise_floor_calib);
775
776 stats->cs_bmiss_cnt +=
777 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt);
778 stats->cs_low_rssi_cnt +=
779 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt);
780 stats->cs_connect_cnt +=
781 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt);
782 stats->cs_discon_cnt +=
783 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt);
784
785 stats->cs_ave_beacon_rssi =
786 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi);
787
788 stats->cs_last_roam_msec =
789 tgt_stats->cserv_stats.cs_last_roam_msec;
790 stats->cs_snr = tgt_stats->cserv_stats.cs_snr;
791 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi);
792
793 stats->lq_val = le32_to_cpu(tgt_stats->lq_val);
794
795 stats->wow_pkt_dropped +=
796 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped);
797 stats->wow_host_pkt_wakeups +=
798 tgt_stats->wow_stats.wow_host_pkt_wakeups;
799 stats->wow_host_evt_wakeups +=
800 tgt_stats->wow_stats.wow_host_evt_wakeups;
801 stats->wow_evt_discarded +=
802 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded);
803
804 stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received);
805 stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied);
806 stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched);
807
808 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) {
809 clear_bit(STATS_UPDATE_PEND, &vif->flags);
810 wake_up(&ar->event_wq);
811 }
812}
813
814static void ath6kl_add_le32(__le32 *var, __le32 val)
815{
816 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));
817}
818
819void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len)
820{
821 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr;
822 struct ath6kl *ar = vif->ar;
823 struct wmi_ap_mode_stat *ap = &ar->ap_stats;
824 struct wmi_per_sta_stat *st_ap, *st_p;
825 u8 ac;
826
827 if (vif->nw_type == AP_NETWORK) {
828 if (len < sizeof(*p))
829 return;
830
831 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) {
832 st_ap = &ap->sta[ac];
833 st_p = &p->sta[ac];
834
835 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes);
836 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);
837 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);
838 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);
839 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);
840 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);
841 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);
842 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);
843 }
844
845 } else {
846 ath6kl_update_target_stats(vif, ptr, len);
847 }
848}
849
850void ath6kl_wakeup_event(void *dev)
851{
852 struct ath6kl *ar = (struct ath6kl *) dev;
853
854 wake_up(&ar->event_wq);
855}
856
857void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr)
858{
859 struct ath6kl *ar = (struct ath6kl *) devt;
860
861 ar->tx_pwr = tx_pwr;
862 wake_up(&ar->event_wq);
863}
864
865void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid)
866{
867 struct ath6kl_sta *conn;
868 struct sk_buff *skb;
869 bool psq_empty = false;
870 struct ath6kl *ar = vif->ar;
871 struct ath6kl_mgmt_buff *mgmt_buf;
872
873 conn = ath6kl_find_sta_by_aid(ar, aid);
874
875 if (!conn)
876 return;
877 /*
878 * Send out a packet queued on ps queue. When the ps queue
879 * becomes empty update the PVB for this station.
880 */
881 spin_lock_bh(&conn->psq_lock);
882 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
883 spin_unlock_bh(&conn->psq_lock);
884
885 if (psq_empty)
886 /* TODO: Send out a NULL data frame */
887 return;
888
889 spin_lock_bh(&conn->psq_lock);
890 if (conn->mgmt_psq_len > 0) {
891 mgmt_buf = list_first_entry(&conn->mgmt_psq,
892 struct ath6kl_mgmt_buff, list);
893 list_del(&mgmt_buf->list);
894 conn->mgmt_psq_len--;
895 spin_unlock_bh(&conn->psq_lock);
896
897 conn->sta_flags |= STA_PS_POLLED;
898 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,
899 mgmt_buf->id, mgmt_buf->freq,
900 mgmt_buf->wait, mgmt_buf->buf,
901 mgmt_buf->len, mgmt_buf->no_cck);
902 conn->sta_flags &= ~STA_PS_POLLED;
903 kfree(mgmt_buf);
904 } else {
905 skb = skb_dequeue(&conn->psq);
906 spin_unlock_bh(&conn->psq_lock);
907
908 conn->sta_flags |= STA_PS_POLLED;
909 ath6kl_data_tx(skb, vif->ndev);
910 conn->sta_flags &= ~STA_PS_POLLED;
911 }
912
913 spin_lock_bh(&conn->psq_lock);
914 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);
915 spin_unlock_bh(&conn->psq_lock);
916
917 if (psq_empty)
918 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);
919}
920
921void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif)
922{
923 bool mcastq_empty = false;
924 struct sk_buff *skb;
925 struct ath6kl *ar = vif->ar;
926
927 /*
928 * If there are no associated STAs, ignore the DTIM expiry event.
929 * There can be potential race conditions where the last associated
930 * STA may disconnect & before the host could clear the 'Indicate
931 * DTIM' request to the firmware, the firmware would have just
932 * indicated a DTIM expiry event. The race is between 'clear DTIM
933 * expiry cmd' going from the host to the firmware & the DTIM
934 * expiry event happening from the firmware to the host.
935 */
936 if (!ar->sta_list_index)
937 return;
938
939 spin_lock_bh(&ar->mcastpsq_lock);
940 mcastq_empty = skb_queue_empty(&ar->mcastpsq);
941 spin_unlock_bh(&ar->mcastpsq_lock);
942
943 if (mcastq_empty)
944 return;
945
946 /* set the STA flag to dtim_expired for the frame to go out */
947 set_bit(DTIM_EXPIRED, &vif->flags);
948
949 spin_lock_bh(&ar->mcastpsq_lock);
950 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {
951 spin_unlock_bh(&ar->mcastpsq_lock);
952
953 ath6kl_data_tx(skb, vif->ndev);
954
955 spin_lock_bh(&ar->mcastpsq_lock);
956 }
957 spin_unlock_bh(&ar->mcastpsq_lock);
958
959 clear_bit(DTIM_EXPIRED, &vif->flags);
960
961 /* clear the LSB of the BitMapCtl field of the TIM IE */
962 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);
963}
964
965void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid,
966 u8 assoc_resp_len, u8 *assoc_info,
967 u16 prot_reason_status)
968{
969 struct ath6kl *ar = vif->ar;
970
971 if (vif->nw_type == AP_NETWORK) {
972 /* disconnect due to other STA vif switching channels */
973 if (reason == BSS_DISCONNECTED &&
974 prot_reason_status == WMI_AP_REASON_STA_ROAM) {
975 ar->want_ch_switch |= 1 << vif->fw_vif_idx;
976 /* bail back to this channel if STA vif fails connect */
977 ar->last_ch = le16_to_cpu(vif->profile.ch);
978 }
979
980 if (prot_reason_status == WMI_AP_REASON_MAX_STA) {
981 /* send max client reached notification to user space */
982 cfg80211_conn_failed(vif->ndev, bssid,
983 NL80211_CONN_FAIL_MAX_CLIENTS,
984 GFP_KERNEL);
985 }
986
987 if (prot_reason_status == WMI_AP_REASON_ACL) {
988 /* send blocked client notification to user space */
989 cfg80211_conn_failed(vif->ndev, bssid,
990 NL80211_CONN_FAIL_BLOCKED_CLIENT,
991 GFP_KERNEL);
992 }
993
994 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status))
995 return;
996
997 /* if no more associated STAs, empty the mcast PS q */
998 if (ar->sta_list_index == 0) {
999 spin_lock_bh(&ar->mcastpsq_lock);
1000 skb_queue_purge(&ar->mcastpsq);
1001 spin_unlock_bh(&ar->mcastpsq_lock);
1002
1003 /* clear the LSB of the TIM IE's BitMapCtl field */
1004 if (test_bit(WMI_READY, &ar->flag))
1005 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx,
1006 MCAST_AID, 0);
1007 }
1008
1009 if (!is_broadcast_ether_addr(bssid)) {
1010 /* send event to application */
1011 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);
1012 }
1013
1014 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {
1015 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));
1016 clear_bit(CONNECTED, &vif->flags);
1017 }
1018 return;
1019 }
1020
1021 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,
1022 assoc_resp_len, assoc_info,
1023 prot_reason_status);
1024
1025 aggr_reset_state(vif->aggr_cntxt->aggr_conn);
1026
1027 del_timer(&vif->disconnect_timer);
1028
1029 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);
1030
1031 /*
1032 * If the event is due to disconnect cmd from the host, only they
1033 * the target would stop trying to connect. Under any other
1034 * condition, target would keep trying to connect.
1035 */
1036 if (reason == DISCONNECT_CMD) {
1037 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag))
1038 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,
1039 NONE_BSS_FILTER, 0);
1040 } else {
1041 set_bit(CONNECT_PEND, &vif->flags);
1042 if (((reason == ASSOC_FAILED) &&
1043 (prot_reason_status == 0x11)) ||
1044 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) &&
1045 (vif->reconnect_flag == 1))) {
1046 set_bit(CONNECTED, &vif->flags);
1047 return;
1048 }
1049 }
1050
1051 /* restart disconnected concurrent vifs waiting for new channel */
1052 ath6kl_check_ch_switch(ar, ar->last_ch);
1053
1054 /* update connect & link status atomically */
1055 spin_lock_bh(&vif->if_lock);
1056 clear_bit(CONNECTED, &vif->flags);
1057 netif_carrier_off(vif->ndev);
1058 spin_unlock_bh(&vif->if_lock);
1059
1060 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1))
1061 vif->reconnect_flag = 0;
1062
1063 if (reason != CSERV_DISCONNECT)
1064 ar->user_key_ctrl = 0;
1065
1066 netif_stop_queue(vif->ndev);
1067 memset(vif->bssid, 0, sizeof(vif->bssid));
1068 vif->bss_ch = 0;
1069
1070 ath6kl_tx_data_cleanup(ar);
1071}
1072
1073struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)
1074{
1075 struct ath6kl_vif *vif;
1076
1077 spin_lock_bh(&ar->list_lock);
1078 if (list_empty(&ar->vif_list)) {
1079 spin_unlock_bh(&ar->list_lock);
1080 return NULL;
1081 }
1082
1083 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list);
1084
1085 spin_unlock_bh(&ar->list_lock);
1086
1087 return vif;
1088}
1089
1090static int ath6kl_open(struct net_device *dev)
1091{
1092 struct ath6kl_vif *vif = netdev_priv(dev);
1093
1094 set_bit(WLAN_ENABLED, &vif->flags);
1095
1096 if (test_bit(CONNECTED, &vif->flags)) {
1097 netif_carrier_on(dev);
1098 netif_wake_queue(dev);
1099 } else {
1100 netif_carrier_off(dev);
1101 }
1102
1103 return 0;
1104}
1105
1106static int ath6kl_close(struct net_device *dev)
1107{
1108 struct ath6kl_vif *vif = netdev_priv(dev);
1109
1110 netif_stop_queue(dev);
1111
1112 ath6kl_cfg80211_stop(vif);
1113
1114 clear_bit(WLAN_ENABLED, &vif->flags);
1115
1116 return 0;
1117}
1118
1119static int ath6kl_set_features(struct net_device *dev,
1120 netdev_features_t features)
1121{
1122 struct ath6kl_vif *vif = netdev_priv(dev);
1123 struct ath6kl *ar = vif->ar;
1124 int err = 0;
1125
1126 if ((features & NETIF_F_RXCSUM) &&
1127 (ar->rx_meta_ver != WMI_META_VERSION_2)) {
1128 ar->rx_meta_ver = WMI_META_VERSION_2;
1129 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1130 vif->fw_vif_idx,
1131 ar->rx_meta_ver, 0, 0);
1132 if (err) {
1133 dev->features = features & ~NETIF_F_RXCSUM;
1134 return err;
1135 }
1136 } else if (!(features & NETIF_F_RXCSUM) &&
1137 (ar->rx_meta_ver == WMI_META_VERSION_2)) {
1138 ar->rx_meta_ver = 0;
1139 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi,
1140 vif->fw_vif_idx,
1141 ar->rx_meta_ver, 0, 0);
1142 if (err) {
1143 dev->features = features | NETIF_F_RXCSUM;
1144 return err;
1145 }
1146 }
1147
1148 return err;
1149}
1150
1151static void ath6kl_set_multicast_list(struct net_device *ndev)
1152{
1153 struct ath6kl_vif *vif = netdev_priv(ndev);
1154 bool mc_all_on = false;
1155 int mc_count = netdev_mc_count(ndev);
1156 struct netdev_hw_addr *ha;
1157 bool found;
1158 struct ath6kl_mc_filter *mc_filter, *tmp;
1159 struct list_head mc_filter_new;
1160 int ret;
1161
1162 if (!test_bit(WMI_READY, &vif->ar->flag) ||
1163 !test_bit(WLAN_ENABLED, &vif->flags))
1164 return;
1165
1166 /* Enable multicast-all filter. */
1167 mc_all_on = !!(ndev->flags & IFF_PROMISC) ||
1168 !!(ndev->flags & IFF_ALLMULTI) ||
1169 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST);
1170
1171 if (mc_all_on)
1172 set_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
1173 else
1174 clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags);
1175
1176 if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER,
1177 vif->ar->fw_capabilities)) {
1178 mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON);
1179 }
1180
1181 if (!(ndev->flags & IFF_MULTICAST)) {
1182 mc_all_on = false;
1183 set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
1184 } else {
1185 clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);
1186 }
1187
1188 /* Enable/disable "multicast-all" filter*/
1189 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n",
1190 mc_all_on ? "enabling" : "disabling");
1191
1192 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,
1193 mc_all_on);
1194 if (ret) {
1195 ath6kl_warn("Failed to %s multicast-all receive\n",
1196 mc_all_on ? "enable" : "disable");
1197 return;
1198 }
1199
1200 if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags))
1201 return;
1202
1203 /* Keep the driver and firmware mcast list in sync. */
1204 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) {
1205 found = false;
1206 netdev_for_each_mc_addr(ha, ndev) {
1207 if (memcmp(ha->addr, mc_filter->hw_addr,
1208 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1209 found = true;
1210 break;
1211 }
1212 }
1213
1214 if (!found) {
1215 /*
1216 * Delete the filter which was previously set
1217 * but not in the new request.
1218 */
1219 ath6kl_dbg(ATH6KL_DBG_TRC,
1220 "Removing %pM from multicast filter\n",
1221 mc_filter->hw_addr);
1222 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1223 vif->fw_vif_idx, mc_filter->hw_addr,
1224 false);
1225 if (ret) {
1226 ath6kl_warn("Failed to remove multicast filter:%pM\n",
1227 mc_filter->hw_addr);
1228 return;
1229 }
1230
1231 list_del(&mc_filter->list);
1232 kfree(mc_filter);
1233 }
1234 }
1235
1236 INIT_LIST_HEAD(&mc_filter_new);
1237
1238 netdev_for_each_mc_addr(ha, ndev) {
1239 found = false;
1240 list_for_each_entry(mc_filter, &vif->mc_filter, list) {
1241 if (memcmp(ha->addr, mc_filter->hw_addr,
1242 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) {
1243 found = true;
1244 break;
1245 }
1246 }
1247
1248 if (!found) {
1249 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter),
1250 GFP_ATOMIC);
1251 if (!mc_filter) {
1252 WARN_ON(1);
1253 goto out;
1254 }
1255
1256 memcpy(mc_filter->hw_addr, ha->addr,
1257 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE);
1258 /* Set the multicast filter */
1259 ath6kl_dbg(ATH6KL_DBG_TRC,
1260 "Adding %pM to multicast filter list\n",
1261 mc_filter->hw_addr);
1262 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,
1263 vif->fw_vif_idx, mc_filter->hw_addr,
1264 true);
1265 if (ret) {
1266 ath6kl_warn("Failed to add multicast filter :%pM\n",
1267 mc_filter->hw_addr);
1268 kfree(mc_filter);
1269 goto out;
1270 }
1271
1272 list_add_tail(&mc_filter->list, &mc_filter_new);
1273 }
1274 }
1275
1276out:
1277 list_splice_tail(&mc_filter_new, &vif->mc_filter);
1278}
1279
1280static const struct net_device_ops ath6kl_netdev_ops = {
1281 .ndo_open = ath6kl_open,
1282 .ndo_stop = ath6kl_close,
1283 .ndo_start_xmit = ath6kl_data_tx,
1284 .ndo_set_features = ath6kl_set_features,
1285 .ndo_set_rx_mode = ath6kl_set_multicast_list,
1286};
1287
1288void init_netdev(struct net_device *dev)
1289{
1290 struct ath6kl *ar = ath6kl_priv(dev);
1291
1292 dev->netdev_ops = &ath6kl_netdev_ops;
1293 dev->needs_free_netdev = true;
1294 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT;
1295
1296 dev->needed_headroom = ETH_HLEN;
1297 dev->needed_headroom += roundup(sizeof(struct ath6kl_llc_snap_hdr) +
1298 sizeof(struct wmi_data_hdr) +
1299 HTC_HDR_LENGTH +
1300 WMI_MAX_TX_META_SZ +
1301 ATH6KL_HTC_ALIGN_BYTES, 4);
1302
1303 if (!test_bit(ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM,
1304 ar->fw_capabilities))
1305 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM;
1306
1307 return;
1308}