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