1312 lines · c
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 any6 * purpose with or without fee is hereby granted, provided that the above7 * copyright notice and this permission notice appear in all copies.8 *9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.16 */17 18#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt19 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 cooperation201 * 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 from219 * 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 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(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 (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(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(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 that470 * was officially allocated for BSS AC Access Delay. As471 * such, we need to be a bit more careful on when472 * parsing the frame. However, BSS AC Access Delay473 * element is not supposed to be included in474 * (Re)Association Request frames, so this should not475 * 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_addr, aid, wpa_ie,484 wpa_ie ? 2 + wpa_ie[1] : 0,485 keymgmt, ucipher, auth, apsd_info);486 487 /* send event to application */488 sinfo = kzalloc(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(vif->ndev, mac_addr, sinfo, GFP_KERNEL);498 499 netif_wake_queue(vif->ndev);500 501 kfree(sinfo);502}503 504void 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 512void 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(vif->ar->wmi, vif->fw_vif_idx);517 /*518 * Disconnect command is issued, clear the connect pending519 * flag. The connected flag will be cleared in520 * disconnect event notification.521 */522 clear_bit(CONNECT_PEND, &vif->flags);523 }524}525 526/* WMI Event handlers */527 528void 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(ATH6KL_DBG_BOOT,536 "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(ar->wiphy->fw_version,545 sizeof(ar->wiphy->fw_version),546 "%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(WMI_READY, &ar->flag);555 wake_up(&ar->event_wq);556}557 558void 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(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);570 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,571 NONE_BSS_FILTER, 0);572 }573 574 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status);575}576 577static 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(ar->wmi, vif->fw_vif_idx,593 WLAN_EID_RSN, WMI_RSN_IE_CAPB,594 (const u8 *) &vif->rsn_capab,595 sizeof(vif->rsn_capab));596 597 return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx,598 &vif->profile);599 default:600 ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type);601 return -ENOTSUPP;602 }603}604 605static 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(&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("channel switch failed nw_type %d res %d\n",623 vif->nw_type, res);624 }625 spin_unlock_bh(&ar->list_lock);626}627 628void 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_int, beacon_int,638 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(ar->wmi, vif->fw_vif_idx,647 vif->listen_intvl_t, 0);648 ath6kl_check_ch_switch(ar, channel);649 }650 651 netif_wake_queue(vif->ndev);652 653 /* Update connect & link status atomically */654 spin_lock_bh(&vif->if_lock);655 set_bit(CONNECTED, &vif->flags);656 clear_bit(CONNECT_PEND, &vif->flags);657 netif_carrier_on(vif->ndev);658 spin_unlock_bh(&vif->if_lock);659 660 aggr_reset_state(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(CLEAR_BSSFILTER_ON_BEACON, &vif->flags);671 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx,672 CURRENT_BSS_FILTER, 0);673 }674}675 676void 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 with684 * 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, (keyid >> 2));688 if (!sta)689 return;690 691 ath6kl_dbg(ATH6KL_DBG_TRC,692 "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(vif->ndev, sta->mac,696 NL80211_KEYTYPE_PAIRWISE, keyid,697 tsc, GFP_KERNEL);698 } else {699 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast);700 }701}702 703static 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(ATH6KL_DBG_TRC, "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(tgt_stats->stats.tx.ucast_rate);742 stats->tx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, 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(tgt_stats->stats.rx.ucast_rate);761 stats->rx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, 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(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(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(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(STATS_UPDATE_PEND, &vif->flags);813 wake_up(&ar->event_wq);814 }815}816 817static void ath6kl_add_le32(__le32 *var, __le32 val)818{819 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val));820}821 822void 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(&st_ap->tx_bytes, st_p->tx_bytes);839 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts);840 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error);841 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard);842 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes);843 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts);844 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error);845 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard);846 }847 848 } else {849 ath6kl_update_target_stats(vif, ptr, len);850 }851}852 853void ath6kl_wakeup_event(void *dev)854{855 struct ath6kl *ar = dev;856 857 wake_up(&ar->event_wq);858}859 860void 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 868void 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 queue882 * becomes empty update the PVB for this station.883 */884 spin_lock_bh(&conn->psq_lock);885 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);886 spin_unlock_bh(&conn->psq_lock);887 888 if (psq_empty)889 /* TODO: Send out a NULL data frame */890 return;891 892 spin_lock_bh(&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(&mgmt_buf->list);897 conn->mgmt_psq_len--;898 spin_unlock_bh(&conn->psq_lock);899 900 conn->sta_flags |= STA_PS_POLLED;901 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx,902 mgmt_buf->id, mgmt_buf->freq,903 mgmt_buf->wait, mgmt_buf->buf,904 mgmt_buf->len, mgmt_buf->no_cck);905 conn->sta_flags &= ~STA_PS_POLLED;906 kfree(mgmt_buf);907 } else {908 skb = skb_dequeue(&conn->psq);909 spin_unlock_bh(&conn->psq_lock);910 911 conn->sta_flags |= STA_PS_POLLED;912 ath6kl_data_tx(skb, vif->ndev);913 conn->sta_flags &= ~STA_PS_POLLED;914 }915 916 spin_lock_bh(&conn->psq_lock);917 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0);918 spin_unlock_bh(&conn->psq_lock);919 920 if (psq_empty)921 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0);922}923 924void 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 associated933 * STA may disconnect & before the host could clear the 'Indicate934 * DTIM' request to the firmware, the firmware would have just935 * indicated a DTIM expiry event. The race is between 'clear DTIM936 * expiry cmd' going from the host to the firmware & the DTIM937 * expiry event happening from the firmware to the host.938 */939 if (!ar->sta_list_index)940 return;941 942 spin_lock_bh(&ar->mcastpsq_lock);943 mcastq_empty = skb_queue_empty(&ar->mcastpsq);944 spin_unlock_bh(&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(DTIM_EXPIRED, &vif->flags);951 952 spin_lock_bh(&ar->mcastpsq_lock);953 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) {954 spin_unlock_bh(&ar->mcastpsq_lock);955 956 ath6kl_data_tx(skb, vif->ndev);957 958 spin_lock_bh(&ar->mcastpsq_lock);959 }960 spin_unlock_bh(&ar->mcastpsq_lock);961 962 clear_bit(DTIM_EXPIRED, &vif->flags);963 964 /* clear the LSB of the BitMapCtl field of the TIM IE */965 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0);966}967 968void 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(vif->ndev, bssid,986 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(vif->ndev, bssid,993 NL80211_CONN_FAIL_BLOCKED_CLIENT,994 GFP_KERNEL);995 }996 997 if (!ath6kl_remove_sta(ar, bssid, 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(&ar->mcastpsq_lock);1003 skb_queue_purge(&ar->mcastpsq);1004 spin_unlock_bh(&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(ar->wmi, vif->fw_vif_idx,1009 MCAST_AID, 0);1010 }1011 1012 if (!is_broadcast_ether_addr(bssid)) {1013 /* send event to application */1014 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL);1015 }1016 1017 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) {1018 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list));1019 clear_bit(CONNECTED, &vif->flags);1020 }1021 return;1022 }1023 1024 ath6kl_cfg80211_disconnect_event(vif, reason, bssid,1025 assoc_resp_len, assoc_info,1026 prot_reason_status);1027 1028 aggr_reset_state(vif->aggr_cntxt->aggr_conn);1029 1030 del_timer(&vif->disconnect_timer);1031 1032 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason);1033 1034 /*1035 * If the event is due to disconnect cmd from the host, only they1036 * the target would stop trying to connect. Under any other1037 * 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(ar->wmi, vif->fw_vif_idx,1042 NONE_BSS_FILTER, 0);1043 } else {1044 set_bit(CONNECT_PEND, &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(CONNECTED, &vif->flags);1050 return;1051 }1052 }1053 1054 /* restart disconnected concurrent vifs waiting for new channel */1055 ath6kl_check_ch_switch(ar, ar->last_ch);1056 1057 /* update connect & link status atomically */1058 spin_lock_bh(&vif->if_lock);1059 clear_bit(CONNECTED, &vif->flags);1060 netif_carrier_off(vif->ndev);1061 spin_unlock_bh(&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(vif->ndev);1070 memset(vif->bssid, 0, sizeof(vif->bssid));1071 vif->bss_ch = 0;1072 1073 ath6kl_tx_data_cleanup(ar);1074}1075 1076struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar)1077{1078 struct ath6kl_vif *vif;1079 1080 spin_lock_bh(&ar->list_lock);1081 if (list_empty(&ar->vif_list)) {1082 spin_unlock_bh(&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(&ar->list_lock);1089 1090 return vif;1091}1092 1093static int ath6kl_open(struct net_device *dev)1094{1095 struct ath6kl_vif *vif = netdev_priv(dev);1096 1097 set_bit(WLAN_ENABLED, &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 1109static 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(WLAN_ENABLED, &vif->flags);1118 1119 return 0;1120}1121 1122static 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(ar->wmi,1133 vif->fw_vif_idx,1134 ar->rx_meta_ver, 0, 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(ar->wmi,1143 vif->fw_vif_idx,1144 ar->rx_meta_ver, 0, 0);1145 if (err) {1146 dev->features = features | NETIF_F_RXCSUM;1147 return err;1148 }1149 }1150 1151 return err;1152}1153 1154static void ath6kl_set_multicast_list(struct net_device *ndev)1155{1156 struct ath6kl_vif *vif = netdev_priv(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(NETDEV_MCAST_ALL_ON, &vif->flags);1176 else1177 clear_bit(NETDEV_MCAST_ALL_ON, &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(NETDEV_MCAST_ALL_OFF, &vif->flags);1187 } else {1188 clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags);1189 }1190 1191 /* Enable/disable "multicast-all" filter*/1192 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n",1193 mc_all_on ? "enabling" : "disabling");1194 1195 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx,1196 mc_all_on);1197 if (ret) {1198 ath6kl_warn("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(ha->addr, 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 set1220 * but not in the new request.1221 */1222 ath6kl_dbg(ATH6KL_DBG_TRC,1223 "Removing %pM from multicast filter\n",1224 mc_filter->hw_addr);1225 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,1226 vif->fw_vif_idx, mc_filter->hw_addr,1227 false);1228 if (ret) {1229 ath6kl_warn("Failed to remove multicast filter:%pM\n",1230 mc_filter->hw_addr);1231 return;1232 }1233 1234 list_del(&mc_filter->list);1235 kfree(mc_filter);1236 }1237 }1238 1239 INIT_LIST_HEAD(&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(ha->addr, 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(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(ATH6KL_DBG_TRC,1263 "Adding %pM to multicast filter list\n",1264 mc_filter->hw_addr);1265 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi,1266 vif->fw_vif_idx, mc_filter->hw_addr,1267 true);1268 if (ret) {1269 ath6kl_warn("Failed to add multicast filter :%pM\n",1270 mc_filter->hw_addr);1271 kfree(mc_filter);1272 goto out;1273 }1274 1275 list_add_tail(&mc_filter->list, &mc_filter_new);1276 }1277 }1278 1279out:1280 list_splice_tail(&mc_filter_new, &vif->mc_filter);1281}1282 1283static 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 1291void 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