main.c revision 07033ce2fbfb8d27663d1cd1e9ce36b9661007e0
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 ret = ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); 297 if (ret) 298 goto out; 299 300 address = TARG_VTOP(ar->target_type, 301 le32_to_cpu(debug_hdr.dbuf_addr)); 302 firstbuf = address; 303 dropped = le32_to_cpu(debug_hdr.dropped); 304 ret = ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); 305 if (ret) 306 goto out; 307 308 loop = 100; 309 310 do { 311 address = TARG_VTOP(ar->target_type, 312 le32_to_cpu(debug_buf.buffer_addr)); 313 length = le32_to_cpu(debug_buf.length); 314 315 if (length != 0 && (le32_to_cpu(debug_buf.length) <= 316 le32_to_cpu(debug_buf.bufsize))) { 317 length = ALIGN(length, 4); 318 319 ret = ath6kl_diag_read(ar, address, 320 buf, length); 321 if (ret) 322 goto out; 323 324 ath6kl_debug_fwlog_event(ar, buf, length); 325 } 326 327 address = TARG_VTOP(ar->target_type, 328 le32_to_cpu(debug_buf.next)); 329 ret = ath6kl_diag_read(ar, address, &debug_buf, 330 sizeof(debug_buf)); 331 if (ret) 332 goto out; 333 334 loop--; 335 336 if (WARN_ON(loop == 0)) { 337 ret = -ETIMEDOUT; 338 goto out; 339 } 340 } while (address != firstbuf); 341 342out: 343 kfree(buf); 344 345 return ret; 346} 347 348/* FIXME: move to a better place, target.h? */ 349#define AR6003_RESET_CONTROL_ADDRESS 0x00004000 350#define AR6004_RESET_CONTROL_ADDRESS 0x00004000 351 352void ath6kl_reset_device(struct ath6kl *ar, u32 target_type, 353 bool wait_fot_compltn, bool cold_reset) 354{ 355 int status = 0; 356 u32 address; 357 __le32 data; 358 359 if (target_type != TARGET_TYPE_AR6003 && 360 target_type != TARGET_TYPE_AR6004) 361 return; 362 363 data = cold_reset ? cpu_to_le32(RESET_CONTROL_COLD_RST) : 364 cpu_to_le32(RESET_CONTROL_MBOX_RST); 365 366 switch (target_type) { 367 case TARGET_TYPE_AR6003: 368 address = AR6003_RESET_CONTROL_ADDRESS; 369 break; 370 case TARGET_TYPE_AR6004: 371 address = AR6004_RESET_CONTROL_ADDRESS; 372 break; 373 } 374 375 status = ath6kl_diag_write32(ar, address, data); 376 377 if (status) 378 ath6kl_err("failed to reset target\n"); 379} 380 381static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) 382{ 383 u8 index; 384 u8 keyusage; 385 386 for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) { 387 if (vif->wep_key_list[index].key_len) { 388 keyusage = GROUP_USAGE; 389 if (index == vif->def_txkey_index) 390 keyusage |= TX_USAGE; 391 392 ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, 393 index, 394 WEP_CRYPT, 395 keyusage, 396 vif->wep_key_list[index].key_len, 397 NULL, 0, 398 vif->wep_key_list[index].key, 399 KEY_OP_INIT_VAL, NULL, 400 NO_SYNC_WMIFLAG); 401 } 402 } 403} 404 405void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) 406{ 407 struct ath6kl *ar = vif->ar; 408 struct ath6kl_req_key *ik; 409 int res; 410 u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; 411 412 ik = &ar->ap_mode_bkey; 413 414 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); 415 416 switch (vif->auth_mode) { 417 case NONE_AUTH: 418 if (vif->prwise_crypto == WEP_CRYPT) 419 ath6kl_install_static_wep_keys(vif); 420 if (!ik->valid || ik->key_type != WAPI_CRYPT) 421 break; 422 /* for WAPI, we need to set the delayed group key, continue: */ 423 case WPA_PSK_AUTH: 424 case WPA2_PSK_AUTH: 425 case (WPA_PSK_AUTH | WPA2_PSK_AUTH): 426 if (!ik->valid) 427 break; 428 429 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 430 "Delayed addkey for the initial group key for AP mode\n"); 431 memset(key_rsc, 0, sizeof(key_rsc)); 432 res = ath6kl_wmi_addkey_cmd( 433 ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, 434 GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, 435 ik->key, 436 KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); 437 if (res) { 438 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, 439 "Delayed addkey failed: %d\n", res); 440 } 441 break; 442 } 443 444 if (ar->last_ch != channel) 445 /* we actually don't know the phymode, default to HT20 */ 446 ath6kl_cfg80211_ch_switch_notify(vif, channel, WMI_11G_HT20); 447 448 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); 449 set_bit(CONNECTED, &vif->flags); 450 netif_carrier_on(vif->ndev); 451} 452 453void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, 454 u8 keymgmt, u8 ucipher, u8 auth, 455 u8 assoc_req_len, u8 *assoc_info, u8 apsd_info) 456{ 457 u8 *ies = NULL, *wpa_ie = NULL, *pos; 458 size_t ies_len = 0; 459 struct station_info sinfo; 460 461 ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); 462 463 if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { 464 struct ieee80211_mgmt *mgmt = 465 (struct ieee80211_mgmt *) assoc_info; 466 if (ieee80211_is_assoc_req(mgmt->frame_control) && 467 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + 468 sizeof(mgmt->u.assoc_req)) { 469 ies = mgmt->u.assoc_req.variable; 470 ies_len = assoc_info + assoc_req_len - ies; 471 } else if (ieee80211_is_reassoc_req(mgmt->frame_control) && 472 assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) 473 + sizeof(mgmt->u.reassoc_req)) { 474 ies = mgmt->u.reassoc_req.variable; 475 ies_len = assoc_info + assoc_req_len - ies; 476 } 477 } 478 479 pos = ies; 480 while (pos && pos + 1 < ies + ies_len) { 481 if (pos + 2 + pos[1] > ies + ies_len) 482 break; 483 if (pos[0] == WLAN_EID_RSN) 484 wpa_ie = pos; /* RSN IE */ 485 else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && 486 pos[1] >= 4 && 487 pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { 488 if (pos[5] == 0x01) 489 wpa_ie = pos; /* WPA IE */ 490 else if (pos[5] == 0x04) { 491 wpa_ie = pos; /* WPS IE */ 492 break; /* overrides WPA/RSN IE */ 493 } 494 } else if (pos[0] == 0x44 && wpa_ie == NULL) { 495 /* 496 * Note: WAPI Parameter Set IE re-uses Element ID that 497 * was officially allocated for BSS AC Access Delay. As 498 * such, we need to be a bit more careful on when 499 * parsing the frame. However, BSS AC Access Delay 500 * element is not supposed to be included in 501 * (Re)Association Request frames, so this should not 502 * cause problems. 503 */ 504 wpa_ie = pos; /* WAPI IE */ 505 break; 506 } 507 pos += 2 + pos[1]; 508 } 509 510 ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie, 511 wpa_ie ? 2 + wpa_ie[1] : 0, 512 keymgmt, ucipher, auth, apsd_info); 513 514 /* send event to application */ 515 memset(&sinfo, 0, sizeof(sinfo)); 516 517 /* TODO: sinfo.generation */ 518 519 sinfo.assoc_req_ies = ies; 520 sinfo.assoc_req_ies_len = ies_len; 521 sinfo.filled |= STATION_INFO_ASSOC_REQ_IES; 522 523 cfg80211_new_sta(vif->ndev, mac_addr, &sinfo, GFP_KERNEL); 524 525 netif_wake_queue(vif->ndev); 526} 527 528void disconnect_timer_handler(unsigned long ptr) 529{ 530 struct net_device *dev = (struct net_device *)ptr; 531 struct ath6kl_vif *vif = netdev_priv(dev); 532 533 ath6kl_init_profile_info(vif); 534 ath6kl_disconnect(vif); 535} 536 537void ath6kl_disconnect(struct ath6kl_vif *vif) 538{ 539 if (test_bit(CONNECTED, &vif->flags) || 540 test_bit(CONNECT_PEND, &vif->flags)) { 541 ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); 542 /* 543 * Disconnect command is issued, clear the connect pending 544 * flag. The connected flag will be cleared in 545 * disconnect event notification. 546 */ 547 clear_bit(CONNECT_PEND, &vif->flags); 548 } 549} 550 551/* WMI Event handlers */ 552 553void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver, 554 enum wmi_phy_cap cap) 555{ 556 struct ath6kl *ar = devt; 557 558 memcpy(ar->mac_addr, datap, ETH_ALEN); 559 560 ath6kl_dbg(ATH6KL_DBG_BOOT, 561 "ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n", 562 ar->mac_addr, sw_ver, abi_ver, cap); 563 564 ar->version.wlan_ver = sw_ver; 565 ar->version.abi_ver = abi_ver; 566 ar->hw.cap = cap; 567 568 if (strlen(ar->wiphy->fw_version) == 0) { 569 snprintf(ar->wiphy->fw_version, 570 sizeof(ar->wiphy->fw_version), 571 "%u.%u.%u.%u", 572 (ar->version.wlan_ver & 0xf0000000) >> 28, 573 (ar->version.wlan_ver & 0x0f000000) >> 24, 574 (ar->version.wlan_ver & 0x00ff0000) >> 16, 575 (ar->version.wlan_ver & 0x0000ffff)); 576 } 577 578 /* indicate to the waiting thread that the ready event was received */ 579 set_bit(WMI_READY, &ar->flag); 580 wake_up(&ar->event_wq); 581} 582 583void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) 584{ 585 struct ath6kl *ar = vif->ar; 586 bool aborted = false; 587 588 if (status != WMI_SCAN_STATUS_SUCCESS) 589 aborted = true; 590 591 ath6kl_cfg80211_scan_complete_event(vif, aborted); 592 593 if (!ar->usr_bss_filter) { 594 clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 595 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 596 NONE_BSS_FILTER, 0); 597 } 598 599 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status); 600} 601 602static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel) 603{ 604 605 struct ath6kl *ar = vif->ar; 606 607 vif->profile.ch = cpu_to_le16(channel); 608 609 switch (vif->nw_type) { 610 case AP_NETWORK: 611 /* 612 * reconfigure any saved RSN IE capabilites in the beacon / 613 * probe response to stay in sync with the supplicant. 614 */ 615 if (vif->rsn_capab && 616 test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, 617 ar->fw_capabilities)) 618 ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, 619 WLAN_EID_RSN, WMI_RSN_IE_CAPB, 620 (const u8 *) &vif->rsn_capab, 621 sizeof(vif->rsn_capab)); 622 623 return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, 624 &vif->profile); 625 default: 626 ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type); 627 return -ENOTSUPP; 628 } 629} 630 631static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel) 632{ 633 634 struct ath6kl_vif *vif; 635 int res = 0; 636 637 if (!ar->want_ch_switch) 638 return; 639 640 spin_lock_bh(&ar->list_lock); 641 list_for_each_entry(vif, &ar->vif_list, list) { 642 if (ar->want_ch_switch & (1 << vif->fw_vif_idx)) 643 res = ath6kl_commit_ch_switch(vif, channel); 644 645 /* if channel switch failed, oh well we tried */ 646 ar->want_ch_switch &= ~(1 << vif->fw_vif_idx); 647 648 if (res) 649 ath6kl_err("channel switch failed nw_type %d res %d\n", 650 vif->nw_type, res); 651 } 652 spin_unlock_bh(&ar->list_lock); 653} 654 655void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, 656 u16 listen_int, u16 beacon_int, 657 enum network_type net_type, u8 beacon_ie_len, 658 u8 assoc_req_len, u8 assoc_resp_len, 659 u8 *assoc_info) 660{ 661 struct ath6kl *ar = vif->ar; 662 663 ath6kl_cfg80211_connect_event(vif, channel, bssid, 664 listen_int, beacon_int, 665 net_type, beacon_ie_len, 666 assoc_req_len, assoc_resp_len, 667 assoc_info); 668 669 memcpy(vif->bssid, bssid, sizeof(vif->bssid)); 670 vif->bss_ch = channel; 671 672 if ((vif->nw_type == INFRA_NETWORK)) { 673 ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, 674 vif->listen_intvl_t, 0); 675 ath6kl_check_ch_switch(ar, channel); 676 } 677 678 netif_wake_queue(vif->ndev); 679 680 /* Update connect & link status atomically */ 681 spin_lock_bh(&vif->if_lock); 682 set_bit(CONNECTED, &vif->flags); 683 clear_bit(CONNECT_PEND, &vif->flags); 684 netif_carrier_on(vif->ndev); 685 spin_unlock_bh(&vif->if_lock); 686 687 aggr_reset_state(vif->aggr_cntxt->aggr_conn); 688 vif->reconnect_flag = 0; 689 690 if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { 691 memset(ar->node_map, 0, sizeof(ar->node_map)); 692 ar->node_num = 0; 693 ar->next_ep_id = ENDPOINT_2; 694 } 695 696 if (!ar->usr_bss_filter) { 697 set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); 698 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 699 CURRENT_BSS_FILTER, 0); 700 } 701} 702 703void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) 704{ 705 struct ath6kl_sta *sta; 706 struct ath6kl *ar = vif->ar; 707 u8 tsc[6]; 708 709 /* 710 * For AP case, keyid will have aid of STA which sent pkt with 711 * MIC error. Use this aid to get MAC & send it to hostapd. 712 */ 713 if (vif->nw_type == AP_NETWORK) { 714 sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); 715 if (!sta) 716 return; 717 718 ath6kl_dbg(ATH6KL_DBG_TRC, 719 "ap tkip mic error received from aid=%d\n", keyid); 720 721 memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ 722 cfg80211_michael_mic_failure(vif->ndev, sta->mac, 723 NL80211_KEYTYPE_PAIRWISE, keyid, 724 tsc, GFP_KERNEL); 725 } else 726 ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); 727 728} 729 730static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) 731{ 732 struct wmi_target_stats *tgt_stats = 733 (struct wmi_target_stats *) ptr; 734 struct ath6kl *ar = vif->ar; 735 struct target_stats *stats = &vif->target_stats; 736 struct tkip_ccmp_stats *ccmp_stats; 737 u8 ac; 738 739 if (len < sizeof(*tgt_stats)) 740 return; 741 742 ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); 743 744 stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); 745 stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); 746 stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); 747 stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); 748 stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); 749 stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); 750 stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); 751 stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); 752 stats->tx_rts_success_cnt += 753 le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); 754 755 for (ac = 0; ac < WMM_NUM_AC; ac++) 756 stats->tx_pkt_per_ac[ac] += 757 le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); 758 759 stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); 760 stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); 761 stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); 762 stats->tx_mult_retry_cnt += 763 le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); 764 stats->tx_rts_fail_cnt += 765 le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); 766 stats->tx_ucast_rate = 767 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate)); 768 769 stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); 770 stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); 771 stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); 772 stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); 773 stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); 774 stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); 775 stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); 776 stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); 777 stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); 778 stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); 779 stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); 780 stats->rx_key_cache_miss += 781 le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); 782 stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); 783 stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); 784 stats->rx_ucast_rate = 785 ath6kl_wmi_get_rate(a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate)); 786 787 ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; 788 789 stats->tkip_local_mic_fail += 790 le32_to_cpu(ccmp_stats->tkip_local_mic_fail); 791 stats->tkip_cnter_measures_invoked += 792 le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); 793 stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); 794 795 stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); 796 stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); 797 798 stats->pwr_save_fail_cnt += 799 le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); 800 stats->noise_floor_calib = 801 a_sle32_to_cpu(tgt_stats->noise_floor_calib); 802 803 stats->cs_bmiss_cnt += 804 le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); 805 stats->cs_low_rssi_cnt += 806 le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); 807 stats->cs_connect_cnt += 808 le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); 809 stats->cs_discon_cnt += 810 le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); 811 812 stats->cs_ave_beacon_rssi = 813 a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); 814 815 stats->cs_last_roam_msec = 816 tgt_stats->cserv_stats.cs_last_roam_msec; 817 stats->cs_snr = tgt_stats->cserv_stats.cs_snr; 818 stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); 819 820 stats->lq_val = le32_to_cpu(tgt_stats->lq_val); 821 822 stats->wow_pkt_dropped += 823 le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); 824 stats->wow_host_pkt_wakeups += 825 tgt_stats->wow_stats.wow_host_pkt_wakeups; 826 stats->wow_host_evt_wakeups += 827 tgt_stats->wow_stats.wow_host_evt_wakeups; 828 stats->wow_evt_discarded += 829 le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); 830 831 stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received); 832 stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied); 833 stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched); 834 835 if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { 836 clear_bit(STATS_UPDATE_PEND, &vif->flags); 837 wake_up(&ar->event_wq); 838 } 839} 840 841static void ath6kl_add_le32(__le32 *var, __le32 val) 842{ 843 *var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); 844} 845 846void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) 847{ 848 struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; 849 struct ath6kl *ar = vif->ar; 850 struct wmi_ap_mode_stat *ap = &ar->ap_stats; 851 struct wmi_per_sta_stat *st_ap, *st_p; 852 u8 ac; 853 854 if (vif->nw_type == AP_NETWORK) { 855 if (len < sizeof(*p)) 856 return; 857 858 for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { 859 st_ap = &ap->sta[ac]; 860 st_p = &p->sta[ac]; 861 862 ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); 863 ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); 864 ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); 865 ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); 866 ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); 867 ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); 868 ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); 869 ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); 870 } 871 872 } else { 873 ath6kl_update_target_stats(vif, ptr, len); 874 } 875} 876 877void ath6kl_wakeup_event(void *dev) 878{ 879 struct ath6kl *ar = (struct ath6kl *) dev; 880 881 wake_up(&ar->event_wq); 882} 883 884void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) 885{ 886 struct ath6kl *ar = (struct ath6kl *) devt; 887 888 ar->tx_pwr = tx_pwr; 889 wake_up(&ar->event_wq); 890} 891 892void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) 893{ 894 struct ath6kl_sta *conn; 895 struct sk_buff *skb; 896 bool psq_empty = false; 897 struct ath6kl *ar = vif->ar; 898 struct ath6kl_mgmt_buff *mgmt_buf; 899 900 conn = ath6kl_find_sta_by_aid(ar, aid); 901 902 if (!conn) 903 return; 904 /* 905 * Send out a packet queued on ps queue. When the ps queue 906 * becomes empty update the PVB for this station. 907 */ 908 spin_lock_bh(&conn->psq_lock); 909 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0); 910 spin_unlock_bh(&conn->psq_lock); 911 912 if (psq_empty) 913 /* TODO: Send out a NULL data frame */ 914 return; 915 916 spin_lock_bh(&conn->psq_lock); 917 if (conn->mgmt_psq_len > 0) { 918 mgmt_buf = list_first_entry(&conn->mgmt_psq, 919 struct ath6kl_mgmt_buff, list); 920 list_del(&mgmt_buf->list); 921 conn->mgmt_psq_len--; 922 spin_unlock_bh(&conn->psq_lock); 923 924 conn->sta_flags |= STA_PS_POLLED; 925 ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, 926 mgmt_buf->id, mgmt_buf->freq, 927 mgmt_buf->wait, mgmt_buf->buf, 928 mgmt_buf->len, mgmt_buf->no_cck); 929 conn->sta_flags &= ~STA_PS_POLLED; 930 kfree(mgmt_buf); 931 } else { 932 skb = skb_dequeue(&conn->psq); 933 spin_unlock_bh(&conn->psq_lock); 934 935 conn->sta_flags |= STA_PS_POLLED; 936 ath6kl_data_tx(skb, vif->ndev); 937 conn->sta_flags &= ~STA_PS_POLLED; 938 } 939 940 spin_lock_bh(&conn->psq_lock); 941 psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0); 942 spin_unlock_bh(&conn->psq_lock); 943 944 if (psq_empty) 945 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); 946} 947 948void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) 949{ 950 bool mcastq_empty = false; 951 struct sk_buff *skb; 952 struct ath6kl *ar = vif->ar; 953 954 /* 955 * If there are no associated STAs, ignore the DTIM expiry event. 956 * There can be potential race conditions where the last associated 957 * STA may disconnect & before the host could clear the 'Indicate 958 * DTIM' request to the firmware, the firmware would have just 959 * indicated a DTIM expiry event. The race is between 'clear DTIM 960 * expiry cmd' going from the host to the firmware & the DTIM 961 * expiry event happening from the firmware to the host. 962 */ 963 if (!ar->sta_list_index) 964 return; 965 966 spin_lock_bh(&ar->mcastpsq_lock); 967 mcastq_empty = skb_queue_empty(&ar->mcastpsq); 968 spin_unlock_bh(&ar->mcastpsq_lock); 969 970 if (mcastq_empty) 971 return; 972 973 /* set the STA flag to dtim_expired for the frame to go out */ 974 set_bit(DTIM_EXPIRED, &vif->flags); 975 976 spin_lock_bh(&ar->mcastpsq_lock); 977 while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { 978 spin_unlock_bh(&ar->mcastpsq_lock); 979 980 ath6kl_data_tx(skb, vif->ndev); 981 982 spin_lock_bh(&ar->mcastpsq_lock); 983 } 984 spin_unlock_bh(&ar->mcastpsq_lock); 985 986 clear_bit(DTIM_EXPIRED, &vif->flags); 987 988 /* clear the LSB of the BitMapCtl field of the TIM IE */ 989 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); 990} 991 992void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, 993 u8 assoc_resp_len, u8 *assoc_info, 994 u16 prot_reason_status) 995{ 996 struct ath6kl *ar = vif->ar; 997 998 if (vif->nw_type == AP_NETWORK) { 999 /* disconnect due to other STA vif switching channels */ 1000 if (reason == BSS_DISCONNECTED && 1001 prot_reason_status == WMI_AP_REASON_STA_ROAM) { 1002 ar->want_ch_switch |= 1 << vif->fw_vif_idx; 1003 /* bail back to this channel if STA vif fails connect */ 1004 ar->last_ch = le16_to_cpu(vif->profile.ch); 1005 } 1006 1007 if (prot_reason_status == WMI_AP_REASON_MAX_STA) { 1008 /* send max client reached notification to user space */ 1009 cfg80211_conn_failed(vif->ndev, bssid, 1010 NL80211_CONN_FAIL_MAX_CLIENTS, 1011 GFP_KERNEL); 1012 } 1013 1014 if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) 1015 return; 1016 1017 /* if no more associated STAs, empty the mcast PS q */ 1018 if (ar->sta_list_index == 0) { 1019 spin_lock_bh(&ar->mcastpsq_lock); 1020 skb_queue_purge(&ar->mcastpsq); 1021 spin_unlock_bh(&ar->mcastpsq_lock); 1022 1023 /* clear the LSB of the TIM IE's BitMapCtl field */ 1024 if (test_bit(WMI_READY, &ar->flag)) 1025 ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, 1026 MCAST_AID, 0); 1027 } 1028 1029 if (!is_broadcast_ether_addr(bssid)) { 1030 /* send event to application */ 1031 cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); 1032 } 1033 1034 if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { 1035 memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); 1036 clear_bit(CONNECTED, &vif->flags); 1037 } 1038 return; 1039 } 1040 1041 ath6kl_cfg80211_disconnect_event(vif, reason, bssid, 1042 assoc_resp_len, assoc_info, 1043 prot_reason_status); 1044 1045 aggr_reset_state(vif->aggr_cntxt->aggr_conn); 1046 1047 del_timer(&vif->disconnect_timer); 1048 1049 ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason); 1050 1051 /* 1052 * If the event is due to disconnect cmd from the host, only they 1053 * the target would stop trying to connect. Under any other 1054 * condition, target would keep trying to connect. 1055 */ 1056 if (reason == DISCONNECT_CMD) { 1057 if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) 1058 ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, 1059 NONE_BSS_FILTER, 0); 1060 } else { 1061 set_bit(CONNECT_PEND, &vif->flags); 1062 if (((reason == ASSOC_FAILED) && 1063 (prot_reason_status == 0x11)) || 1064 ((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) && 1065 (vif->reconnect_flag == 1))) { 1066 set_bit(CONNECTED, &vif->flags); 1067 return; 1068 } 1069 } 1070 1071 /* restart disconnected concurrent vifs waiting for new channel */ 1072 ath6kl_check_ch_switch(ar, ar->last_ch); 1073 1074 /* update connect & link status atomically */ 1075 spin_lock_bh(&vif->if_lock); 1076 clear_bit(CONNECTED, &vif->flags); 1077 netif_carrier_off(vif->ndev); 1078 spin_unlock_bh(&vif->if_lock); 1079 1080 if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) 1081 vif->reconnect_flag = 0; 1082 1083 if (reason != CSERV_DISCONNECT) 1084 ar->user_key_ctrl = 0; 1085 1086 netif_stop_queue(vif->ndev); 1087 memset(vif->bssid, 0, sizeof(vif->bssid)); 1088 vif->bss_ch = 0; 1089 1090 ath6kl_tx_data_cleanup(ar); 1091} 1092 1093struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) 1094{ 1095 struct ath6kl_vif *vif; 1096 1097 spin_lock_bh(&ar->list_lock); 1098 if (list_empty(&ar->vif_list)) { 1099 spin_unlock_bh(&ar->list_lock); 1100 return NULL; 1101 } 1102 1103 vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); 1104 1105 spin_unlock_bh(&ar->list_lock); 1106 1107 return vif; 1108} 1109 1110static int ath6kl_open(struct net_device *dev) 1111{ 1112 struct ath6kl_vif *vif = netdev_priv(dev); 1113 1114 set_bit(WLAN_ENABLED, &vif->flags); 1115 1116 if (test_bit(CONNECTED, &vif->flags)) { 1117 netif_carrier_on(dev); 1118 netif_wake_queue(dev); 1119 } else 1120 netif_carrier_off(dev); 1121 1122 return 0; 1123} 1124 1125static int ath6kl_close(struct net_device *dev) 1126{ 1127 struct ath6kl_vif *vif = netdev_priv(dev); 1128 1129 netif_stop_queue(dev); 1130 1131 ath6kl_cfg80211_stop(vif); 1132 1133 clear_bit(WLAN_ENABLED, &vif->flags); 1134 1135 return 0; 1136} 1137 1138static struct net_device_stats *ath6kl_get_stats(struct net_device *dev) 1139{ 1140 struct ath6kl_vif *vif = netdev_priv(dev); 1141 1142 return &vif->net_stats; 1143} 1144 1145static int ath6kl_set_features(struct net_device *dev, 1146 netdev_features_t features) 1147{ 1148 struct ath6kl_vif *vif = netdev_priv(dev); 1149 struct ath6kl *ar = vif->ar; 1150 int err = 0; 1151 1152 if ((features & NETIF_F_RXCSUM) && 1153 (ar->rx_meta_ver != WMI_META_VERSION_2)) { 1154 ar->rx_meta_ver = WMI_META_VERSION_2; 1155 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, 1156 vif->fw_vif_idx, 1157 ar->rx_meta_ver, 0, 0); 1158 if (err) { 1159 dev->features = features & ~NETIF_F_RXCSUM; 1160 return err; 1161 } 1162 } else if (!(features & NETIF_F_RXCSUM) && 1163 (ar->rx_meta_ver == WMI_META_VERSION_2)) { 1164 ar->rx_meta_ver = 0; 1165 err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, 1166 vif->fw_vif_idx, 1167 ar->rx_meta_ver, 0, 0); 1168 if (err) { 1169 dev->features = features | NETIF_F_RXCSUM; 1170 return err; 1171 } 1172 1173 } 1174 1175 return err; 1176} 1177 1178static void ath6kl_set_multicast_list(struct net_device *ndev) 1179{ 1180 struct ath6kl_vif *vif = netdev_priv(ndev); 1181 bool mc_all_on = false; 1182 int mc_count = netdev_mc_count(ndev); 1183 struct netdev_hw_addr *ha; 1184 bool found; 1185 struct ath6kl_mc_filter *mc_filter, *tmp; 1186 struct list_head mc_filter_new; 1187 int ret; 1188 1189 if (!test_bit(WMI_READY, &vif->ar->flag) || 1190 !test_bit(WLAN_ENABLED, &vif->flags)) 1191 return; 1192 1193 /* Enable multicast-all filter. */ 1194 mc_all_on = !!(ndev->flags & IFF_PROMISC) || 1195 !!(ndev->flags & IFF_ALLMULTI) || 1196 !!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST); 1197 1198 if (mc_all_on) 1199 set_bit(NETDEV_MCAST_ALL_ON, &vif->flags); 1200 else 1201 clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags); 1202 1203 if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, 1204 vif->ar->fw_capabilities)) { 1205 mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON); 1206 } 1207 1208 if (!(ndev->flags & IFF_MULTICAST)) { 1209 mc_all_on = false; 1210 set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags); 1211 } else { 1212 clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags); 1213 } 1214 1215 /* Enable/disable "multicast-all" filter*/ 1216 ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n", 1217 mc_all_on ? "enabling" : "disabling"); 1218 1219 ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx, 1220 mc_all_on); 1221 if (ret) { 1222 ath6kl_warn("Failed to %s multicast-all receive\n", 1223 mc_all_on ? "enable" : "disable"); 1224 return; 1225 } 1226 1227 if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags)) 1228 return; 1229 1230 /* Keep the driver and firmware mcast list in sync. */ 1231 list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { 1232 found = false; 1233 netdev_for_each_mc_addr(ha, ndev) { 1234 if (memcmp(ha->addr, mc_filter->hw_addr, 1235 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { 1236 found = true; 1237 break; 1238 } 1239 } 1240 1241 if (!found) { 1242 /* 1243 * Delete the filter which was previously set 1244 * but not in the new request. 1245 */ 1246 ath6kl_dbg(ATH6KL_DBG_TRC, 1247 "Removing %pM from multicast filter\n", 1248 mc_filter->hw_addr); 1249 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, 1250 vif->fw_vif_idx, mc_filter->hw_addr, 1251 false); 1252 if (ret) { 1253 ath6kl_warn("Failed to remove multicast filter:%pM\n", 1254 mc_filter->hw_addr); 1255 return; 1256 } 1257 1258 list_del(&mc_filter->list); 1259 kfree(mc_filter); 1260 } 1261 } 1262 1263 INIT_LIST_HEAD(&mc_filter_new); 1264 1265 netdev_for_each_mc_addr(ha, ndev) { 1266 found = false; 1267 list_for_each_entry(mc_filter, &vif->mc_filter, list) { 1268 if (memcmp(ha->addr, mc_filter->hw_addr, 1269 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { 1270 found = true; 1271 break; 1272 } 1273 } 1274 1275 if (!found) { 1276 mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter), 1277 GFP_ATOMIC); 1278 if (!mc_filter) { 1279 WARN_ON(1); 1280 goto out; 1281 } 1282 1283 memcpy(mc_filter->hw_addr, ha->addr, 1284 ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE); 1285 /* Set the multicast filter */ 1286 ath6kl_dbg(ATH6KL_DBG_TRC, 1287 "Adding %pM to multicast filter list\n", 1288 mc_filter->hw_addr); 1289 ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, 1290 vif->fw_vif_idx, mc_filter->hw_addr, 1291 true); 1292 if (ret) { 1293 ath6kl_warn("Failed to add multicast filter :%pM\n", 1294 mc_filter->hw_addr); 1295 kfree(mc_filter); 1296 goto out; 1297 } 1298 1299 list_add_tail(&mc_filter->list, &mc_filter_new); 1300 } 1301 } 1302 1303out: 1304 list_splice_tail(&mc_filter_new, &vif->mc_filter); 1305} 1306 1307static const struct net_device_ops ath6kl_netdev_ops = { 1308 .ndo_open = ath6kl_open, 1309 .ndo_stop = ath6kl_close, 1310 .ndo_start_xmit = ath6kl_data_tx, 1311 .ndo_get_stats = ath6kl_get_stats, 1312 .ndo_set_features = ath6kl_set_features, 1313 .ndo_set_rx_mode = ath6kl_set_multicast_list, 1314}; 1315 1316void init_netdev(struct net_device *dev) 1317{ 1318 dev->netdev_ops = &ath6kl_netdev_ops; 1319 dev->destructor = free_netdev; 1320 dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; 1321 1322 dev->needed_headroom = ETH_HLEN; 1323 dev->needed_headroom += sizeof(struct ath6kl_llc_snap_hdr) + 1324 sizeof(struct wmi_data_hdr) + HTC_HDR_LENGTH 1325 + WMI_MAX_TX_META_SZ + ATH6KL_HTC_ALIGN_BYTES; 1326 1327 dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; 1328 1329 return; 1330} 1331