main.c revision b5b6f6a9a07ac230d54a85a9fb9e691c85f2eb0a
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 max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; 33 34 for (i = 0; i < max_conn; i++) { 35 if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { 36 conn = &ar->sta_list[i]; 37 break; 38 } 39 } 40 41 return conn; 42} 43 44struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) 45{ 46 struct ath6kl_sta *conn = NULL; 47 u8 ctr; 48 49 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 50 if (ar->sta_list[ctr].aid == aid) { 51 conn = &ar->sta_list[ctr]; 52 break; 53 } 54 } 55 return conn; 56} 57 58static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid, 59 u8 *wpaie, size_t ielen, u8 keymgmt, 60 u8 ucipher, u8 auth, u8 apsd_info) 61{ 62 struct ath6kl *ar = vif->ar; 63 struct ath6kl_sta *sta; 64 u8 free_slot; 65 66 free_slot = aid - 1; 67 68 sta = &ar->sta_list[free_slot]; 69 memcpy(sta->mac, mac, ETH_ALEN); 70 if (ielen <= ATH6KL_MAX_IE) 71 memcpy(sta->wpa_ie, wpaie, ielen); 72 sta->aid = aid; 73 sta->keymgmt = keymgmt; 74 sta->ucipher = ucipher; 75 sta->auth = auth; 76 sta->apsd_info = apsd_info; 77 78 ar->sta_list_index = ar->sta_list_index | (1 << free_slot); 79 ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); 80 aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn); 81} 82 83static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) 84{ 85 struct ath6kl_sta *sta = &ar->sta_list[i]; 86 struct ath6kl_mgmt_buff *entry, *tmp; 87 88 /* empty the queued pkts in the PS queue if any */ 89 spin_lock_bh(&sta->psq_lock); 90 skb_queue_purge(&sta->psq); 91 skb_queue_purge(&sta->apsdq); 92 93 if (sta->mgmt_psq_len != 0) { 94 list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) { 95 kfree(entry); 96 } 97 INIT_LIST_HEAD(&sta->mgmt_psq); 98 sta->mgmt_psq_len = 0; 99 } 100 101 spin_unlock_bh(&sta->psq_lock); 102 103 memset(&ar->ap_stats.sta[sta->aid - 1], 0, 104 sizeof(struct wmi_per_sta_stat)); 105 memset(sta->mac, 0, ETH_ALEN); 106 memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); 107 sta->aid = 0; 108 sta->sta_flags = 0; 109 110 ar->sta_list_index = ar->sta_list_index & ~(1 << i); 111 aggr_reset_state(sta->aggr_conn); 112} 113 114static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) 115{ 116 u8 i, removed = 0; 117 118 if (is_zero_ether_addr(mac)) 119 return removed; 120 121 if (is_broadcast_ether_addr(mac)) { 122 ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); 123 124 for (i = 0; i < AP_MAX_NUM_STA; i++) { 125 if (!is_zero_ether_addr(ar->sta_list[i].mac)) { 126 ath6kl_sta_cleanup(ar, i); 127 removed = 1; 128 } 129 } 130 } else { 131 for (i = 0; i < AP_MAX_NUM_STA; i++) { 132 if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { 133 ath6kl_dbg(ATH6KL_DBG_TRC, 134 "deleting station %pM aid=%d reason=%d\n", 135 mac, ar->sta_list[i].aid, reason); 136 ath6kl_sta_cleanup(ar, i); 137 removed = 1; 138 break; 139 } 140 } 141 } 142 143 return removed; 144} 145 146enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) 147{ 148 struct ath6kl *ar = devt; 149 return ar->ac2ep_map[ac]; 150} 151 152struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) 153{ 154 struct ath6kl_cookie *cookie; 155 156 cookie = ar->cookie_list; 157 if (cookie != NULL) { 158 ar->cookie_list = cookie->arc_list_next; 159 ar->cookie_count--; 160 } 161 162 return cookie; 163} 164 165void ath6kl_cookie_init(struct ath6kl *ar) 166{ 167 u32 i; 168 169 ar->cookie_list = NULL; 170 ar->cookie_count = 0; 171 172 memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); 173 174 for (i = 0; i < MAX_COOKIE_NUM; i++) 175 ath6kl_free_cookie(ar, &ar->cookie_mem[i]); 176} 177 178void ath6kl_cookie_cleanup(struct ath6kl *ar) 179{ 180 ar->cookie_list = NULL; 181 ar->cookie_count = 0; 182} 183 184void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) 185{ 186 /* Insert first */ 187 188 if (!ar || !cookie) 189 return; 190 191 cookie->arc_list_next = ar->cookie_list; 192 ar->cookie_list = cookie; 193 ar->cookie_count++; 194} 195 196/* 197 * Read from the hardware through its diagnostic window. No cooperation 198 * from the firmware is required for this. 199 */ 200int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) 201{ 202 int ret; 203 204 ret = ath6kl_hif_diag_read32(ar, address, value); 205 if (ret) { 206 ath6kl_warn("failed to read32 through diagnose window: %d\n", 207 ret); 208 return ret; 209 } 210 211 return 0; 212} 213 214/* 215 * Write to the ATH6KL through its diagnostic window. No cooperation from 216 * the Target is required for this. 217 */ 218int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) 219{ 220 int ret; 221 222 ret = ath6kl_hif_diag_write32(ar, address, value); 223 224 if (ret) { 225 ath6kl_err("failed to write 0x%x during diagnose window to 0x%d\n", 226 address, value); 227 return ret; 228 } 229 230 return 0; 231} 232 233int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) 234{ 235 u32 count, *buf = data; 236 int ret; 237 238 if (WARN_ON(length % 4)) 239 return -EINVAL; 240 241 for (count = 0; count < length / 4; count++, address += 4) { 242 ret = ath6kl_diag_read32(ar, address, &buf[count]); 243 if (ret) 244 return ret; 245 } 246 247 return 0; 248} 249 250int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) 251{ 252 u32 count; 253 __le32 *buf = data; 254 int ret; 255 256 if (WARN_ON(length % 4)) 257 return -EINVAL; 258 259 for (count = 0; count < length / 4; count++, address += 4) { 260 ret = ath6kl_diag_write32(ar, address, buf[count]); 261 if (ret) 262 return ret; 263 } 264 265 return 0; 266} 267 268int ath6kl_read_fwlogs(struct ath6kl *ar) 269{ 270 struct ath6kl_dbglog_hdr debug_hdr; 271 struct ath6kl_dbglog_buf debug_buf; 272 u32 address, length, dropped, firstbuf, debug_hdr_addr; 273 int ret, loop; 274 u8 *buf; 275 276 buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); 277 if (!buf) 278 return -ENOMEM; 279 280 address = TARG_VTOP(ar->target_type, 281 ath6kl_get_hi_item_addr(ar, 282 HI_ITEM(hi_dbglog_hdr))); 283 284 ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); 285 if (ret) 286 goto out; 287 288 /* Get the contents of the ring buffer */ 289 if (debug_hdr_addr == 0) { 290 ath6kl_warn("Invalid address for debug_hdr_addr\n"); 291 ret = -EINVAL; 292 goto out; 293 } 294 295 address = TARG_VTOP(ar->target_type, debug_hdr_addr); 296 ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); 297 298 address = TARG_VTOP(ar->target_type, 299 le32_to_cpu(debug_hdr.dbuf_addr)); 300 firstbuf = address; 301 dropped = le32_to_cpu(debug_hdr.dropped); 302 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 303 304 loop = 100; 305 306 do { 307 address = TARG_VTOP(ar->target_type, 308 le32_to_cpu(debug_buf.buffer_addr)); 309 length = le32_to_cpu(debug_buf.length); 310 311 if (length != 0 && (le32_to_cpu(debug_buf.length) <= 312 le32_to_cpu(debug_buf.bufsize))) { 313 length = ALIGN(length, 4); 314 315 ret = ath6kl_diag_read(ar, address, 316 buf, length); 317 if (ret) 318 goto out; 319 320 ath6kl_debug_fwlog_event(ar, buf, length); 321 } 322 323 address = TARG_VTOP(ar->target_type, 324 le32_to_cpu(debug_buf.next)); 325 ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 326 if (ret) 327 goto out; 328 329 loop--; 330 331 if (WARN_ON(loop == 0)) { 332 ret = -ETIMEDOUT; 333 goto out; 334 } 335 } while (address != firstbuf); 336 337out: 338 kfree(buf); 339 340 return ret; 341} 342 343/* FIXME: move to a better place, target.h? */ 344#define AR6003_RESET_CONTROL_ADDRESS 0x00004000 345#define AR6004_RESET_CONTROL_ADDRESS 0x00004000 346 347void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, 348 bool wait_fot_compltn, bool cold_reset) 349{ 350 int status = 0; 351 u32 address; 352 __le32 data; 353 354 if (target_type != TARGET_TYPE_AR6003 && 355 target_type != TARGET_TYPE_AR6004) 356 return; 357 358 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : 359 cpu_to_le32(RESET_CONTROL_MBOX_RST); 360 361 switch (target_type) { 362 case TARGET_TYPE_AR6003: 363 address = AR6003_RESET_CONTROL_ADDRESS; 364 break; 365 case TARGET_TYPE_AR6004: 366 address = AR6004_RESET_CONTROL_ADDRESS; 367 break; 368 } 369 370 status = ath6kl_diag_write32(ar, address, data); 371 372 if (status) 373 ath6kl_err("failed to reset target\n"); 374} 375 376static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) 377{ 378 u8 index; 379 u8 keyusage; 380 381 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) { 382 if (vif->wep_key_list[index].key_len) { 383 keyusage = GROUP_USAGE; 384 if (index == vif->def_txkey_index) 385 keyusage |= TX_USAGE; 386 387 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, 388 index, 389 WEP_CRYPT, 390 keyusage, 391 vif->wep_key_list[index].key_len, 392 NULL, 0, 393 vif->wep_key_list[index].key, 394 KEY_OP_INIT_VAL, NULL, 395 NO_SYNC_WMIFLAG); 396 } 397 } 398} 399 400void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) 401{ 402 struct ath6kl *ar = vif->ar; 403 struct ath6kl_req_key *ik; 404 int res; 405 u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; 406 407 ik = &ar->ap_mode_bkey; 408 409 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); 410 411 switch (vif->auth_mode) { 412 case NONE_AUTH: 413 if (vif->prwise_crypto == WEP_CRYPT) 414 ath6kl_install_static_wep_keys(vif); 415 if (!ik->valid || ik->key_type != WAPI_CRYPT) 416 break; 417 /* for WAPI, we need to set the delayed group key, continue: */ 418 case WPA_PSK_AUTH: 419 case WPA2_PSK_AUTH: 420 case (WPA_PSK_AUTH | WPA2_PSK_AUTH): 421 if (!ik->valid) 422 break; 423 424 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 425 "Delayed addkey for the initial group key for AP mode\n"); 426 memset(key_rsc, 0, sizeof(key_rsc)); 427 res = ath6kl_wmi_addkey_cmd( 428 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, 429 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, 430 ik->key, 431 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); 432 if (res) { 433 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 434 "Delayed addkey failed: %d\n", res); 435 } 436 break; 437 } 438 439 if (ar->want_ch_switch & (1 << vif->fw_vif_idx)) { 440 ar->want_ch_switch &= ~(1 << vif->fw_vif_idx); 441 /* we actually don't know the phymode, default to HT20 */ 442 ath6kl_cfg80211_ch_switch_notify(vif, channel, 443 WMI_11G_HT20); 444 } 445 446 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); 447 set_bit(CONNECTED, &vif->flags); 448 netif_carrier_on(vif->ndev); 449} 450 451void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, 452 u8 keymgmt, u8 ucipher, u8 auth, 453 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info) 454{ 455 u8 *ies = NULL, *wpa_ie = NULL, *pos; 456 size_t ies_len = 0; 457 struct station_info sinfo; 458 459 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); 460 461 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { 462 struct ieee80211_mgmt *mgmt = 463 (struct ieee80211_mgmt *) assoc_info; 464 if (ieee80211_is_assoc_req(mgmt->frame_control) && 465 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + 466 sizeof(mgmt->u.assoc_req)) { 467 ies = mgmt->u.assoc_req.variable; 468 ies_len = assoc_info + assoc_req_len - ies; 469 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && 470 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) 471 + sizeof(mgmt->u.reassoc_req)) { 472 ies = mgmt->u.reassoc_req.variable; 473 ies_len = assoc_info + assoc_req_len - ies; 474 } 475 } 476 477 pos = ies; 478 while (pos && pos + 1 < ies + ies_len) { 479 if (pos + 2 + pos[1] > ies + ies_len) 480 break; 481 if (pos[0] == WLAN_EID_RSN) 482 wpa_ie = pos; /* RSN IE */ 483 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 484 pos[1] >= 4 && 485 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { 486 if (pos[5] == 0x01) 487 wpa_ie = pos; /* WPA IE */ 488 else if (pos[5] == 0x04) { 489 wpa_ie = pos; /* WPS IE */ 490 break; /* overrides WPA/RSN IE */ 491 } 492 } else if (pos[0] == 0x44 && wpa_ie == NULL) { 493 /* 494 * Note: WAPI Parameter Set IE re-uses Element ID that 495 * was officially allocated for BSS AC Access Delay. As 496 * such, we need to be a bit more careful on when 497 * parsing the frame. However, BSS AC Access Delay 498 * element is not supposed to be included in 499 * (Re)Association Request frames, so this should not 500 * cause problems. 501 */ 502 wpa_ie = pos; /* WAPI IE */ 503 break; 504 } 505 pos += 2 + pos[1]; 506 } 507 508 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie, 509 wpa_ie ? 2 + wpa_ie[1] : 0, 510 keymgmt, ucipher, auth, apsd_info); 511 512 /* send event to application */ 513 memset(&sinfo, 0, sizeof(sinfo)); 514 515 /* TODO: sinfo.generation */ 516 517 sinfo.assoc_req_ies = ies; 518 sinfo.assoc_req_ies_len = ies_len; 519 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; 520 521 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); 522 523 netif_wake_queue(vif->ndev); 524} 525 526void disconnect_timer_handler(unsigned long ptr) 527{ 528 struct net_device *dev = (struct net_device *)ptr; 529 struct ath6kl_vif *vif = netdev_priv(dev); 530 531 ath6kl_init_profile_info(vif); 532 ath6kl_disconnect(vif); 533} 534 535void ath6kl_disconnect(struct ath6kl_vif *vif) 536{ 537 if (test_bit(CONNECTED, &vif->flags) || 538 test_bit(CONNECT_PEND, &vif->flags)) { 539 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 540 /* 541 * Disconnect command is issued, clear the connect pending 542 * flag. The connected flag will be cleared in 543 * disconnect event notification. 544 */ 545 clear_bit(CONNECT_PEND, &vif->flags); 546 } 547} 548 549/* WMI Event handlers */ 550 551void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver, 552 enum wmi_phy_cap cap) 553{ 554 struct ath6kl *ar = devt; 555 556 memcpy(ar->mac_addr, datap, ETH_ALEN); 557 558 ath6kl_dbg(ATH6KL_DBG_BOOT, 559 "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n", 560 ar->mac_addr, sw_ver, abi_ver, cap); 561 562 ar->version.wlan_ver = sw_ver; 563 ar->version.abi_ver = abi_ver; 564 ar->hw.cap = cap; 565 566 if (strlen(ar->wiphy->fw_version) == 0) { 567 snprintf(ar->wiphy->fw_version, 568 sizeof(ar->wiphy->fw_version), 569 "%u.%u.%u.%u", 570 (ar->version.wlan_ver & 0xf0000000) >> 28, 571 (ar->version.wlan_ver & 0x0f000000) >> 24, 572 (ar->version.wlan_ver & 0x00ff0000) >> 16, 573 (ar->version.wlan_ver & 0x0000ffff)); 574 } 575 576 /* indicate to the waiting thread that the ready event was received */ 577 set_bit(WMI_READY, &ar->flag); 578 wake_up(&ar->event_wq); 579} 580 581void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) 582{ 583 struct ath6kl *ar = vif->ar; 584 bool aborted = false; 585 586 if (status != WMI_SCAN_STATUS_SUCCESS) 587 aborted = true; 588 589 ath6kl_cfg80211_scan_complete_event(vif, aborted); 590 591 if (!ar->usr_bss_filter) { 592 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 593 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 594 NONE_BSS_FILTER, 0); 595 } 596 597 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status); 598} 599 600static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel) 601{ 602 603 struct ath6kl *ar = vif->ar; 604 605 vif->next_chan = channel; 606 vif->profile.ch = cpu_to_le16(channel); 607 608 switch (vif->nw_type) { 609 case AP_NETWORK: 610 return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, 611 &vif->profile); 612 default: 613 ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type); 614 return -ENOTSUPP; 615 } 616} 617 618static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel) 619{ 620 621 struct ath6kl_vif *vif; 622 int res = 0; 623 624 if (!ar->want_ch_switch) 625 return; 626 627 spin_lock_bh(&ar->list_lock); 628 list_for_each_entry(vif, &ar->vif_list, list) { 629 if (ar->want_ch_switch & (1 << vif->fw_vif_idx)) 630 res = ath6kl_commit_ch_switch(vif, channel); 631 632 if (res) 633 ath6kl_err("channel switch failed nw_type %d res %d\n", 634 vif->nw_type, res); 635 } 636 spin_unlock_bh(&ar->list_lock); 637} 638 639void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, 640 u16 listen_int, u16 beacon_int, 641 enum network_type net_type, u8 beacon_ie_len, 642 u8 assoc_req_len, u8 assoc_resp_len, 643 u8 *assoc_info) 644{ 645 struct ath6kl *ar = vif->ar; 646 647 ath6kl_cfg80211_connect_event(vif, channel, bssid, 648 listen_int, beacon_int, 649 net_type, beacon_ie_len, 650 assoc_req_len, assoc_resp_len, 651 assoc_info); 652 653 memcpy(vif->bssid, bssid, sizeof(vif->bssid)); 654 vif->bss_ch = channel; 655 656 if ((vif->nw_type == INFRA_NETWORK)) { 657 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 658 vif->listen_intvl_t, 0); 659 ath6kl_check_ch_switch(ar, channel); 660 } 661 662 netif_wake_queue(vif->ndev); 663 664 /* Update connect & link status atomically */ 665 spin_lock_bh(&vif->if_lock); 666 set_bit(CONNECTED, &vif->flags); 667 clear_bit(CONNECT_PEND, &vif->flags); 668 netif_carrier_on(vif->ndev); 669 spin_unlock_bh(&vif->if_lock); 670 671 aggr_reset_state(vif->aggr_cntxt->aggr_conn); 672 vif->reconnect_flag = 0; 673 674 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { 675 memset(ar->node_map, 0, sizeof(ar->node_map)); 676 ar->node_num = 0; 677 ar->next_ep_id = ENDPOINT_2; 678 } 679 680 if (!ar->usr_bss_filter) { 681 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 682 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 683 CURRENT_BSS_FILTER, 0); 684 } 685} 686 687void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) 688{ 689 struct ath6kl_sta *sta; 690 struct ath6kl *ar = vif->ar; 691 u8 tsc[6]; 692 693 /* 694 * For AP case, keyid will have aid of STA which sent pkt with 695 * MIC error. Use this aid to get MAC & send it to hostapd. 696 */ 697 if (vif->nw_type == AP_NETWORK) { 698 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); 699 if (!sta) 700 return; 701 702 ath6kl_dbg(ATH6KL_DBG_TRC, 703 "ap tkip mic error received from aid=%d\n", keyid); 704 705 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ 706 cfg80211_michael_mic_failure(vif->ndev, sta->mac, 707 NL80211_KEYTYPE_PAIRWISE, keyid, 708 tsc, GFP_KERNEL); 709 } else 710 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); 711 712} 713 714static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) 715{ 716 struct wmi_target_stats *tgt_stats = 717 (struct wmi_target_stats *) ptr; 718 struct ath6kl *ar = vif->ar; 719 struct target_stats *stats = &vif->target_stats; 720 struct tkip_ccmp_stats *ccmp_stats; 721 u8 ac; 722 723 if (len < sizeof(*tgt_stats)) 724 return; 725 726 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); 727 728 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); 729 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); 730 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); 731 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); 732 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); 733 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); 734 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); 735 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); 736 stats->tx_rts_success_cnt += 737 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); 738 739 for (ac = 0; ac < WMM_NUM_AC; ac++) 740 stats->tx_pkt_per_ac[ac] += 741 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); 742 743 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); 744 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); 745 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); 746 stats->tx_mult_retry_cnt += 747 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); 748 stats->tx_rts_fail_cnt += 749 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); 750 stats->tx_ucast_rate = 751 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); 752 753 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); 754 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); 755 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); 756 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); 757 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); 758 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); 759 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); 760 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); 761 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); 762 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); 763 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); 764 stats->rx_key_cache_miss += 765 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); 766 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); 767 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); 768 stats->rx_ucast_rate = 769 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); 770 771 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; 772 773 stats->tkip_local_mic_fail += 774 le32_to_cpu(ccmp_stats->tkip_local_mic_fail); 775 stats->tkip_cnter_measures_invoked += 776 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); 777 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); 778 779 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); 780 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); 781 782 stats->pwr_save_fail_cnt += 783 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); 784 stats->noise_floor_calib = 785 a_sle32_to_cpu(tgt_stats->noise_floor_calib); 786 787 stats->cs_bmiss_cnt += 788 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); 789 stats->cs_low_rssi_cnt += 790 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); 791 stats->cs_connect_cnt += 792 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); 793 stats->cs_discon_cnt += 794 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); 795 796 stats->cs_ave_beacon_rssi = 797 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); 798 799 stats->cs_last_roam_msec = 800 tgt_stats->cserv_stats.cs_last_roam_msec; 801 stats->cs_snr = tgt_stats->cserv_stats.cs_snr; 802 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); 803 804 stats->lq_val = le32_to_cpu(tgt_stats->lq_val); 805 806 stats->wow_pkt_dropped += 807 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); 808 stats->wow_host_pkt_wakeups += 809 tgt_stats->wow_stats.wow_host_pkt_wakeups; 810 stats->wow_host_evt_wakeups += 811 tgt_stats->wow_stats.wow_host_evt_wakeups; 812 stats->wow_evt_discarded += 813 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); 814 815 stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received); 816 stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied); 817 stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched); 818 819 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { 820 clear_bit(STATS_UPDATE_PEND, &vif->flags); 821 wake_up(&ar->event_wq); 822 } 823} 824 825static void ath6kl_add_le32(__le32 *var, __le32 val) 826{ 827 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); 828} 829 830void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) 831{ 832 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; 833 struct ath6kl *ar = vif->ar; 834 struct wmi_ap_mode_stat *ap = &ar->ap_stats; 835 struct wmi_per_sta_stat *st_ap, *st_p; 836 u8 ac; 837 838 if (vif->nw_type == AP_NETWORK) { 839 if (len < sizeof(*p)) 840 return; 841 842 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { 843 st_ap = &ap->sta[ac]; 844 st_p = &p->sta[ac]; 845 846 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); 847 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); 848 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); 849 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); 850 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); 851 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); 852 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); 853 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); 854 } 855 856 } else { 857 ath6kl_update_target_stats(vif, ptr, len); 858 } 859} 860 861void ath6kl_wakeup_event(void *dev) 862{ 863 struct ath6kl *ar = (struct ath6kl *) dev; 864 865 wake_up(&ar->event_wq); 866} 867 868void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) 869{ 870 struct ath6kl *ar = (struct ath6kl *) devt; 871 872 ar->tx_pwr = tx_pwr; 873 wake_up(&ar->event_wq); 874} 875 876void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) 877{ 878 struct ath6kl_sta *conn; 879 struct sk_buff *skb; 880 bool psq_empty = false; 881 struct ath6kl *ar = vif->ar; 882 struct ath6kl_mgmt_buff *mgmt_buf; 883 884 conn = ath6kl_find_sta_by_aid(ar, aid); 885 886 if (!conn) 887 return; 888 /* 889 * Send out a packet queued on ps queue. When the ps queue 890 * becomes empty update the PVB for this station. 891 */ 892 spin_lock_bh(&conn->psq_lock); 893 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0); 894 spin_unlock_bh(&conn->psq_lock); 895 896 if (psq_empty) 897 /* TODO: Send out a NULL data frame */ 898 return; 899 900 spin_lock_bh(&conn->psq_lock); 901 if (conn->mgmt_psq_len > 0) { 902 mgmt_buf = list_first_entry(&conn->mgmt_psq, 903 struct ath6kl_mgmt_buff, list); 904 list_del(&mgmt_buf->list); 905 conn->mgmt_psq_len--; 906 spin_unlock_bh(&conn->psq_lock); 907 908 conn->sta_flags |= STA_PS_POLLED; 909 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, 910 mgmt_buf->id, mgmt_buf->freq, 911 mgmt_buf->wait, mgmt_buf->buf, 912 mgmt_buf->len, mgmt_buf->no_cck); 913 conn->sta_flags &= ~STA_PS_POLLED; 914 kfree(mgmt_buf); 915 } else { 916 skb = skb_dequeue(&conn->psq); 917 spin_unlock_bh(&conn->psq_lock); 918 919 conn->sta_flags |= STA_PS_POLLED; 920 ath6kl_data_tx(skb, vif->ndev); 921 conn->sta_flags &= ~STA_PS_POLLED; 922 } 923 924 spin_lock_bh(&conn->psq_lock); 925 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0); 926 spin_unlock_bh(&conn->psq_lock); 927 928 if (psq_empty) 929 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); 930} 931 932void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) 933{ 934 bool mcastq_empty = false; 935 struct sk_buff *skb; 936 struct ath6kl *ar = vif->ar; 937 938 /* 939 * If there are no associated STAs, ignore the DTIM expiry event. 940 * There can be potential race conditions where the last associated 941 * STA may disconnect & before the host could clear the 'Indicate 942 * DTIM' request to the firmware, the firmware would have just 943 * indicated a DTIM expiry event. The race is between 'clear DTIM 944 * expiry cmd' going from the host to the firmware & the DTIM 945 * expiry event happening from the firmware to the host. 946 */ 947 if (!ar->sta_list_index) 948 return; 949 950 spin_lock_bh(&ar->mcastpsq_lock); 951 mcastq_empty = skb_queue_empty(&ar->mcastpsq); 952 spin_unlock_bh(&ar->mcastpsq_lock); 953 954 if (mcastq_empty) 955 return; 956 957 /* set the STA flag to dtim_expired for the frame to go out */ 958 set_bit(DTIM_EXPIRED, &vif->flags); 959 960 spin_lock_bh(&ar->mcastpsq_lock); 961 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { 962 spin_unlock_bh(&ar->mcastpsq_lock); 963 964 ath6kl_data_tx(skb, vif->ndev); 965 966 spin_lock_bh(&ar->mcastpsq_lock); 967 } 968 spin_unlock_bh(&ar->mcastpsq_lock); 969 970 clear_bit(DTIM_EXPIRED, &vif->flags); 971 972 /* clear the LSB of the BitMapCtl field of the TIM IE */ 973 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); 974} 975 976void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, 977 u8 assoc_resp_len, u8 *assoc_info, 978 u16 prot_reason_status) 979{ 980 struct ath6kl *ar = vif->ar; 981 982 if (vif->nw_type == AP_NETWORK) { 983 /* disconnect due to other STA vif switching channels */ 984 if (reason == BSS_DISCONNECTED && 985 prot_reason_status == WMI_AP_REASON_STA_ROAM) 986 ar->want_ch_switch |= 1 << vif->fw_vif_idx; 987 988 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) 989 return; 990 991 /* if no more associated STAs, empty the mcast PS q */ 992 if (ar->sta_list_index == 0) { 993 spin_lock_bh(&ar->mcastpsq_lock); 994 skb_queue_purge(&ar->mcastpsq); 995 spin_unlock_bh(&ar->mcastpsq_lock); 996 997 /* clear the LSB of the TIM IE's BitMapCtl field */ 998 if (test_bit(WMI_READY, &ar->flag)) 999 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 1000 MCAST_AID, 0); 1001 } 1002 1003 if (!is_broadcast_ether_addr(bssid)) { 1004 /* send event to application */ 1005 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); 1006 } 1007 1008 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { 1009 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); 1010 clear_bit(CONNECTED, &vif->flags); 1011 } 1012 return; 1013 } 1014 1015 ath6kl_cfg80211_disconnect_event(vif, reason, bssid, 1016 assoc_resp_len, assoc_info, 1017 prot_reason_status); 1018 1019 aggr_reset_state(vif->aggr_cntxt->aggr_conn); 1020 1021 del_timer(&vif->disconnect_timer); 1022 1023 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason); 1024 1025 /* 1026 * If the event is due to disconnect cmd from the host, only they 1027 * the target would stop trying to connect. Under any other 1028 * condition, target would keep trying to connect. 1029 */ 1030 if (reason == DISCONNECT_CMD) { 1031 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) 1032 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1033 NONE_BSS_FILTER, 0); 1034 } else { 1035 set_bit(CONNECT_PEND, &vif->flags); 1036 if (((reason == ASSOC_FAILED) && 1037 (prot_reason_status == 0x11)) || 1038 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) && 1039 (vif->reconnect_flag == 1))) { 1040 set_bit(CONNECTED, &vif->flags); 1041 return; 1042 } 1043 } 1044 1045 /* update connect & link status atomically */ 1046 spin_lock_bh(&vif->if_lock); 1047 clear_bit(CONNECTED, &vif->flags); 1048 netif_carrier_off(vif->ndev); 1049 spin_unlock_bh(&vif->if_lock); 1050 1051 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) 1052 vif->reconnect_flag = 0; 1053 1054 if (reason != CSERV_DISCONNECT) 1055 ar->user_key_ctrl = 0; 1056 1057 netif_stop_queue(vif->ndev); 1058 memset(vif->bssid, 0, sizeof(vif->bssid)); 1059 vif->bss_ch = 0; 1060 1061 ath6kl_tx_data_cleanup(ar); 1062} 1063 1064struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) 1065{ 1066 struct ath6kl_vif *vif; 1067 1068 spin_lock_bh(&ar->list_lock); 1069 if (list_empty(&ar->vif_list)) { 1070 spin_unlock_bh(&ar->list_lock); 1071 return NULL; 1072 } 1073 1074 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); 1075 1076 spin_unlock_bh(&ar->list_lock); 1077 1078 return vif; 1079} 1080 1081static int ath6kl_open(struct net_device *dev) 1082{ 1083 struct ath6kl_vif *vif = netdev_priv(dev); 1084 1085 set_bit(WLAN_ENABLED, &vif->flags); 1086 1087 if (test_bit(CONNECTED, &vif->flags)) { 1088 netif_carrier_on(dev); 1089 netif_wake_queue(dev); 1090 } else 1091 netif_carrier_off(dev); 1092 1093 return 0; 1094} 1095 1096static int ath6kl_close(struct net_device *dev) 1097{ 1098 struct ath6kl_vif *vif = netdev_priv(dev); 1099 1100 netif_stop_queue(dev); 1101 1102 ath6kl_cfg80211_stop(vif); 1103 1104 clear_bit(WLAN_ENABLED, &vif->flags); 1105 1106 return 0; 1107} 1108 1109static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) 1110{ 1111 struct ath6kl_vif *vif = netdev_priv(dev); 1112 1113 return &vif->net_stats; 1114} 1115 1116static int ath6kl_set_features(struct net_device *dev, 1117 netdev_features_t features) 1118{ 1119 struct ath6kl_vif *vif = netdev_priv(dev); 1120 struct ath6kl *ar = vif->ar; 1121 int err = 0; 1122 1123 if ((features & NETIF_F_RXCSUM) && 1124 (ar->rx_meta_ver != WMI_META_VERSION_2)) { 1125 ar->rx_meta_ver = WMI_META_VERSION_2; 1126 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, 1127 vif->fw_vif_idx, 1128 ar->rx_meta_ver, 0, 0); 1129 if (err) { 1130 dev->features = features & ~NETIF_F_RXCSUM; 1131 return err; 1132 } 1133 } else if (!(features & NETIF_F_RXCSUM) && 1134 (ar->rx_meta_ver == WMI_META_VERSION_2)) { 1135 ar->rx_meta_ver = 0; 1136 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, 1137 vif->fw_vif_idx, 1138 ar->rx_meta_ver, 0, 0); 1139 if (err) { 1140 dev->features = features | NETIF_F_RXCSUM; 1141 return err; 1142 } 1143 1144 } 1145 1146 return err; 1147} 1148 1149static void ath6kl_set_multicast_list(struct net_device *ndev) 1150{ 1151 struct ath6kl_vif *vif = netdev_priv(ndev); 1152 bool mc_all_on = false; 1153 int mc_count = netdev_mc_count(ndev); 1154 struct netdev_hw_addr *ha; 1155 bool found; 1156 struct ath6kl_mc_filter *mc_filter, *tmp; 1157 struct list_head mc_filter_new; 1158 int ret; 1159 1160 if (!test_bit(WMI_READY, &vif->ar->flag) || 1161 !test_bit(WLAN_ENABLED, &vif->flags)) 1162 return; 1163 1164 /* Enable multicast-all filter. */ 1165 mc_all_on = !!(ndev->flags & IFF_PROMISC) || 1166 !!(ndev->flags & IFF_ALLMULTI) || 1167 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST); 1168 1169 if (mc_all_on) 1170 set_bit(NETDEV_MCAST_ALL_ON, &vif->flags); 1171 else 1172 clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags); 1173 1174 if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 1175 vif->ar->fw_capabilities)) { 1176 mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON); 1177 } 1178 1179 if (!(ndev->flags & IFF_MULTICAST)) { 1180 mc_all_on = false; 1181 set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags); 1182 } else { 1183 clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags); 1184 } 1185 1186 /* Enable/disable "multicast-all" filter*/ 1187 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n", 1188 mc_all_on ? "enabling" : "disabling"); 1189 1190 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx, 1191 mc_all_on); 1192 if (ret) { 1193 ath6kl_warn("Failed to %s multicast-all receive\n", 1194 mc_all_on ? "enable" : "disable"); 1195 return; 1196 } 1197 1198 if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags)) 1199 return; 1200 1201 /* Keep the driver and firmware mcast list in sync. */ 1202 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 1203 found = false; 1204 netdev_for_each_mc_addr(ha, ndev) { 1205 if (memcmp(ha->addr, mc_filter->hw_addr, 1206 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { 1207 found = true; 1208 break; 1209 } 1210 } 1211 1212 if (!found) { 1213 /* 1214 * Delete the filter which was previously set 1215 * but not in the new request. 1216 */ 1217 ath6kl_dbg(ATH6KL_DBG_TRC, 1218 "Removing %pM from multicast filter\n", 1219 mc_filter->hw_addr); 1220 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, 1221 vif->fw_vif_idx, mc_filter->hw_addr, 1222 false); 1223 if (ret) { 1224 ath6kl_warn("Failed to remove multicast filter:%pM\n", 1225 mc_filter->hw_addr); 1226 return; 1227 } 1228 1229 list_del(&mc_filter->list); 1230 kfree(mc_filter); 1231 } 1232 } 1233 1234 INIT_LIST_HEAD(&mc_filter_new); 1235 1236 netdev_for_each_mc_addr(ha, ndev) { 1237 found = false; 1238 list_for_each_entry(mc_filter, &vif->mc_filter, list) { 1239 if (memcmp(ha->addr, mc_filter->hw_addr, 1240 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { 1241 found = true; 1242 break; 1243 } 1244 } 1245 1246 if (!found) { 1247 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter), 1248 GFP_ATOMIC); 1249 if (!mc_filter) { 1250 WARN_ON(1); 1251 goto out; 1252 } 1253 1254 memcpy(mc_filter->hw_addr, ha->addr, 1255 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE); 1256 /* Set the multicast filter */ 1257 ath6kl_dbg(ATH6KL_DBG_TRC, 1258 "Adding %pM to multicast filter list\n", 1259 mc_filter->hw_addr); 1260 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, 1261 vif->fw_vif_idx, mc_filter->hw_addr, 1262 true); 1263 if (ret) { 1264 ath6kl_warn("Failed to add multicast filter :%pM\n", 1265 mc_filter->hw_addr); 1266 kfree(mc_filter); 1267 goto out; 1268 } 1269 1270 list_add_tail(&mc_filter->list, &mc_filter_new); 1271 } 1272 } 1273 1274out: 1275 list_splice_tail(&mc_filter_new, &vif->mc_filter); 1276} 1277 1278static const struct net_device_ops ath6kl_netdev_ops = { 1279 .ndo_open = ath6kl_open, 1280 .ndo_stop = ath6kl_close, 1281 .ndo_start_xmit = ath6kl_data_tx, 1282 .ndo_get_stats = ath6kl_get_stats, 1283 .ndo_set_features = ath6kl_set_features, 1284 .ndo_set_rx_mode = ath6kl_set_multicast_list, 1285}; 1286 1287void init_netdev(struct net_device *dev) 1288{ 1289 dev->netdev_ops = &ath6kl_netdev_ops; 1290 dev->destructor = free_netdev; 1291 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; 1292 1293 dev->needed_headroom = ETH_HLEN; 1294 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + 1295 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH 1296 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; 1297 1298 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; 1299 1300 return; 1301} 1302