mac.c 122 KB

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  1. /*
  2. * Copyright (c) 2005-2011 Atheros Communications Inc.
  3. * Copyright (c) 2011-2013 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. #include "mac.h"
  18. #include <net/mac80211.h>
  19. #include <linux/etherdevice.h>
  20. #include "hif.h"
  21. #include "core.h"
  22. #include "debug.h"
  23. #include "wmi.h"
  24. #include "htt.h"
  25. #include "txrx.h"
  26. #include "testmode.h"
  27. /**********/
  28. /* Crypto */
  29. /**********/
  30. static int ath10k_send_key(struct ath10k_vif *arvif,
  31. struct ieee80211_key_conf *key,
  32. enum set_key_cmd cmd,
  33. const u8 *macaddr)
  34. {
  35. struct ath10k *ar = arvif->ar;
  36. struct wmi_vdev_install_key_arg arg = {
  37. .vdev_id = arvif->vdev_id,
  38. .key_idx = key->keyidx,
  39. .key_len = key->keylen,
  40. .key_data = key->key,
  41. .macaddr = macaddr,
  42. };
  43. lockdep_assert_held(&arvif->ar->conf_mutex);
  44. if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
  45. arg.key_flags = WMI_KEY_PAIRWISE;
  46. else
  47. arg.key_flags = WMI_KEY_GROUP;
  48. switch (key->cipher) {
  49. case WLAN_CIPHER_SUITE_CCMP:
  50. arg.key_cipher = WMI_CIPHER_AES_CCM;
  51. if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
  52. key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
  53. else
  54. key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
  55. break;
  56. case WLAN_CIPHER_SUITE_TKIP:
  57. arg.key_cipher = WMI_CIPHER_TKIP;
  58. arg.key_txmic_len = 8;
  59. arg.key_rxmic_len = 8;
  60. break;
  61. case WLAN_CIPHER_SUITE_WEP40:
  62. case WLAN_CIPHER_SUITE_WEP104:
  63. arg.key_cipher = WMI_CIPHER_WEP;
  64. /* AP/IBSS mode requires self-key to be groupwise
  65. * Otherwise pairwise key must be set */
  66. if (memcmp(macaddr, arvif->vif->addr, ETH_ALEN))
  67. arg.key_flags = WMI_KEY_PAIRWISE;
  68. break;
  69. default:
  70. ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
  71. return -EOPNOTSUPP;
  72. }
  73. if (cmd == DISABLE_KEY) {
  74. arg.key_cipher = WMI_CIPHER_NONE;
  75. arg.key_data = NULL;
  76. }
  77. return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
  78. }
  79. static int ath10k_install_key(struct ath10k_vif *arvif,
  80. struct ieee80211_key_conf *key,
  81. enum set_key_cmd cmd,
  82. const u8 *macaddr)
  83. {
  84. struct ath10k *ar = arvif->ar;
  85. int ret;
  86. lockdep_assert_held(&ar->conf_mutex);
  87. reinit_completion(&ar->install_key_done);
  88. ret = ath10k_send_key(arvif, key, cmd, macaddr);
  89. if (ret)
  90. return ret;
  91. ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
  92. if (ret == 0)
  93. return -ETIMEDOUT;
  94. return 0;
  95. }
  96. static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
  97. const u8 *addr)
  98. {
  99. struct ath10k *ar = arvif->ar;
  100. struct ath10k_peer *peer;
  101. int ret;
  102. int i;
  103. lockdep_assert_held(&ar->conf_mutex);
  104. spin_lock_bh(&ar->data_lock);
  105. peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
  106. spin_unlock_bh(&ar->data_lock);
  107. if (!peer)
  108. return -ENOENT;
  109. for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
  110. if (arvif->wep_keys[i] == NULL)
  111. continue;
  112. ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
  113. addr);
  114. if (ret)
  115. return ret;
  116. peer->keys[i] = arvif->wep_keys[i];
  117. }
  118. return 0;
  119. }
  120. static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
  121. const u8 *addr)
  122. {
  123. struct ath10k *ar = arvif->ar;
  124. struct ath10k_peer *peer;
  125. int first_errno = 0;
  126. int ret;
  127. int i;
  128. lockdep_assert_held(&ar->conf_mutex);
  129. spin_lock_bh(&ar->data_lock);
  130. peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
  131. spin_unlock_bh(&ar->data_lock);
  132. if (!peer)
  133. return -ENOENT;
  134. for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
  135. if (peer->keys[i] == NULL)
  136. continue;
  137. ret = ath10k_install_key(arvif, peer->keys[i],
  138. DISABLE_KEY, addr);
  139. if (ret && first_errno == 0)
  140. first_errno = ret;
  141. if (ret)
  142. ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
  143. i, ret);
  144. peer->keys[i] = NULL;
  145. }
  146. return first_errno;
  147. }
  148. static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
  149. struct ieee80211_key_conf *key)
  150. {
  151. struct ath10k *ar = arvif->ar;
  152. struct ath10k_peer *peer;
  153. u8 addr[ETH_ALEN];
  154. int first_errno = 0;
  155. int ret;
  156. int i;
  157. lockdep_assert_held(&ar->conf_mutex);
  158. for (;;) {
  159. /* since ath10k_install_key we can't hold data_lock all the
  160. * time, so we try to remove the keys incrementally */
  161. spin_lock_bh(&ar->data_lock);
  162. i = 0;
  163. list_for_each_entry(peer, &ar->peers, list) {
  164. for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
  165. if (peer->keys[i] == key) {
  166. ether_addr_copy(addr, peer->addr);
  167. peer->keys[i] = NULL;
  168. break;
  169. }
  170. }
  171. if (i < ARRAY_SIZE(peer->keys))
  172. break;
  173. }
  174. spin_unlock_bh(&ar->data_lock);
  175. if (i == ARRAY_SIZE(peer->keys))
  176. break;
  177. ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr);
  178. if (ret && first_errno == 0)
  179. first_errno = ret;
  180. if (ret)
  181. ath10k_warn(ar, "failed to remove key for %pM: %d\n",
  182. addr, ret);
  183. }
  184. return first_errno;
  185. }
  186. /*********************/
  187. /* General utilities */
  188. /*********************/
  189. static inline enum wmi_phy_mode
  190. chan_to_phymode(const struct cfg80211_chan_def *chandef)
  191. {
  192. enum wmi_phy_mode phymode = MODE_UNKNOWN;
  193. switch (chandef->chan->band) {
  194. case IEEE80211_BAND_2GHZ:
  195. switch (chandef->width) {
  196. case NL80211_CHAN_WIDTH_20_NOHT:
  197. phymode = MODE_11G;
  198. break;
  199. case NL80211_CHAN_WIDTH_20:
  200. phymode = MODE_11NG_HT20;
  201. break;
  202. case NL80211_CHAN_WIDTH_40:
  203. phymode = MODE_11NG_HT40;
  204. break;
  205. case NL80211_CHAN_WIDTH_5:
  206. case NL80211_CHAN_WIDTH_10:
  207. case NL80211_CHAN_WIDTH_80:
  208. case NL80211_CHAN_WIDTH_80P80:
  209. case NL80211_CHAN_WIDTH_160:
  210. phymode = MODE_UNKNOWN;
  211. break;
  212. }
  213. break;
  214. case IEEE80211_BAND_5GHZ:
  215. switch (chandef->width) {
  216. case NL80211_CHAN_WIDTH_20_NOHT:
  217. phymode = MODE_11A;
  218. break;
  219. case NL80211_CHAN_WIDTH_20:
  220. phymode = MODE_11NA_HT20;
  221. break;
  222. case NL80211_CHAN_WIDTH_40:
  223. phymode = MODE_11NA_HT40;
  224. break;
  225. case NL80211_CHAN_WIDTH_80:
  226. phymode = MODE_11AC_VHT80;
  227. break;
  228. case NL80211_CHAN_WIDTH_5:
  229. case NL80211_CHAN_WIDTH_10:
  230. case NL80211_CHAN_WIDTH_80P80:
  231. case NL80211_CHAN_WIDTH_160:
  232. phymode = MODE_UNKNOWN;
  233. break;
  234. }
  235. break;
  236. default:
  237. break;
  238. }
  239. WARN_ON(phymode == MODE_UNKNOWN);
  240. return phymode;
  241. }
  242. static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
  243. {
  244. /*
  245. * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
  246. * 0 for no restriction
  247. * 1 for 1/4 us
  248. * 2 for 1/2 us
  249. * 3 for 1 us
  250. * 4 for 2 us
  251. * 5 for 4 us
  252. * 6 for 8 us
  253. * 7 for 16 us
  254. */
  255. switch (mpdudensity) {
  256. case 0:
  257. return 0;
  258. case 1:
  259. case 2:
  260. case 3:
  261. /* Our lower layer calculations limit our precision to
  262. 1 microsecond */
  263. return 1;
  264. case 4:
  265. return 2;
  266. case 5:
  267. return 4;
  268. case 6:
  269. return 8;
  270. case 7:
  271. return 16;
  272. default:
  273. return 0;
  274. }
  275. }
  276. static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
  277. {
  278. int ret;
  279. lockdep_assert_held(&ar->conf_mutex);
  280. ret = ath10k_wmi_peer_create(ar, vdev_id, addr);
  281. if (ret) {
  282. ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
  283. addr, vdev_id, ret);
  284. return ret;
  285. }
  286. ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
  287. if (ret) {
  288. ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
  289. addr, vdev_id, ret);
  290. return ret;
  291. }
  292. spin_lock_bh(&ar->data_lock);
  293. ar->num_peers++;
  294. spin_unlock_bh(&ar->data_lock);
  295. return 0;
  296. }
  297. static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
  298. {
  299. struct ath10k *ar = arvif->ar;
  300. u32 param;
  301. int ret;
  302. param = ar->wmi.pdev_param->sta_kickout_th;
  303. ret = ath10k_wmi_pdev_set_param(ar, param,
  304. ATH10K_KICKOUT_THRESHOLD);
  305. if (ret) {
  306. ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
  307. arvif->vdev_id, ret);
  308. return ret;
  309. }
  310. param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
  311. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
  312. ATH10K_KEEPALIVE_MIN_IDLE);
  313. if (ret) {
  314. ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
  315. arvif->vdev_id, ret);
  316. return ret;
  317. }
  318. param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
  319. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
  320. ATH10K_KEEPALIVE_MAX_IDLE);
  321. if (ret) {
  322. ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
  323. arvif->vdev_id, ret);
  324. return ret;
  325. }
  326. param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
  327. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
  328. ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
  329. if (ret) {
  330. ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
  331. arvif->vdev_id, ret);
  332. return ret;
  333. }
  334. return 0;
  335. }
  336. static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
  337. {
  338. struct ath10k *ar = arvif->ar;
  339. u32 vdev_param;
  340. if (value != 0xFFFFFFFF)
  341. value = min_t(u32, arvif->ar->hw->wiphy->rts_threshold,
  342. ATH10K_RTS_MAX);
  343. vdev_param = ar->wmi.vdev_param->rts_threshold;
  344. return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
  345. }
  346. static int ath10k_mac_set_frag(struct ath10k_vif *arvif, u32 value)
  347. {
  348. struct ath10k *ar = arvif->ar;
  349. u32 vdev_param;
  350. if (value != 0xFFFFFFFF)
  351. value = clamp_t(u32, arvif->ar->hw->wiphy->frag_threshold,
  352. ATH10K_FRAGMT_THRESHOLD_MIN,
  353. ATH10K_FRAGMT_THRESHOLD_MAX);
  354. vdev_param = ar->wmi.vdev_param->fragmentation_threshold;
  355. return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
  356. }
  357. static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
  358. {
  359. int ret;
  360. lockdep_assert_held(&ar->conf_mutex);
  361. ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
  362. if (ret)
  363. return ret;
  364. ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
  365. if (ret)
  366. return ret;
  367. spin_lock_bh(&ar->data_lock);
  368. ar->num_peers--;
  369. spin_unlock_bh(&ar->data_lock);
  370. return 0;
  371. }
  372. static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
  373. {
  374. struct ath10k_peer *peer, *tmp;
  375. lockdep_assert_held(&ar->conf_mutex);
  376. spin_lock_bh(&ar->data_lock);
  377. list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
  378. if (peer->vdev_id != vdev_id)
  379. continue;
  380. ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
  381. peer->addr, vdev_id);
  382. list_del(&peer->list);
  383. kfree(peer);
  384. ar->num_peers--;
  385. }
  386. spin_unlock_bh(&ar->data_lock);
  387. }
  388. static void ath10k_peer_cleanup_all(struct ath10k *ar)
  389. {
  390. struct ath10k_peer *peer, *tmp;
  391. lockdep_assert_held(&ar->conf_mutex);
  392. spin_lock_bh(&ar->data_lock);
  393. list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
  394. list_del(&peer->list);
  395. kfree(peer);
  396. }
  397. ar->num_peers = 0;
  398. spin_unlock_bh(&ar->data_lock);
  399. }
  400. /************************/
  401. /* Interface management */
  402. /************************/
  403. void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
  404. {
  405. struct ath10k *ar = arvif->ar;
  406. lockdep_assert_held(&ar->data_lock);
  407. if (!arvif->beacon)
  408. return;
  409. if (!arvif->beacon_buf)
  410. dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
  411. arvif->beacon->len, DMA_TO_DEVICE);
  412. dev_kfree_skb_any(arvif->beacon);
  413. arvif->beacon = NULL;
  414. arvif->beacon_sent = false;
  415. }
  416. static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
  417. {
  418. struct ath10k *ar = arvif->ar;
  419. lockdep_assert_held(&ar->data_lock);
  420. ath10k_mac_vif_beacon_free(arvif);
  421. if (arvif->beacon_buf) {
  422. dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
  423. arvif->beacon_buf, arvif->beacon_paddr);
  424. arvif->beacon_buf = NULL;
  425. }
  426. }
  427. static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
  428. {
  429. int ret;
  430. lockdep_assert_held(&ar->conf_mutex);
  431. ret = wait_for_completion_timeout(&ar->vdev_setup_done,
  432. ATH10K_VDEV_SETUP_TIMEOUT_HZ);
  433. if (ret == 0)
  434. return -ETIMEDOUT;
  435. return 0;
  436. }
  437. static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
  438. {
  439. struct cfg80211_chan_def *chandef = &ar->chandef;
  440. struct ieee80211_channel *channel = chandef->chan;
  441. struct wmi_vdev_start_request_arg arg = {};
  442. int ret = 0;
  443. lockdep_assert_held(&ar->conf_mutex);
  444. arg.vdev_id = vdev_id;
  445. arg.channel.freq = channel->center_freq;
  446. arg.channel.band_center_freq1 = chandef->center_freq1;
  447. /* TODO setup this dynamically, what in case we
  448. don't have any vifs? */
  449. arg.channel.mode = chan_to_phymode(chandef);
  450. arg.channel.chan_radar =
  451. !!(channel->flags & IEEE80211_CHAN_RADAR);
  452. arg.channel.min_power = 0;
  453. arg.channel.max_power = channel->max_power * 2;
  454. arg.channel.max_reg_power = channel->max_reg_power * 2;
  455. arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
  456. ret = ath10k_wmi_vdev_start(ar, &arg);
  457. if (ret) {
  458. ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
  459. vdev_id, ret);
  460. return ret;
  461. }
  462. ret = ath10k_vdev_setup_sync(ar);
  463. if (ret) {
  464. ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i: %d\n",
  465. vdev_id, ret);
  466. return ret;
  467. }
  468. ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
  469. if (ret) {
  470. ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
  471. vdev_id, ret);
  472. goto vdev_stop;
  473. }
  474. ar->monitor_vdev_id = vdev_id;
  475. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
  476. ar->monitor_vdev_id);
  477. return 0;
  478. vdev_stop:
  479. ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
  480. if (ret)
  481. ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
  482. ar->monitor_vdev_id, ret);
  483. return ret;
  484. }
  485. static int ath10k_monitor_vdev_stop(struct ath10k *ar)
  486. {
  487. int ret = 0;
  488. lockdep_assert_held(&ar->conf_mutex);
  489. ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
  490. if (ret)
  491. ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
  492. ar->monitor_vdev_id, ret);
  493. ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
  494. if (ret)
  495. ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
  496. ar->monitor_vdev_id, ret);
  497. ret = ath10k_vdev_setup_sync(ar);
  498. if (ret)
  499. ath10k_warn(ar, "failed to synchronise monitor vdev %i: %d\n",
  500. ar->monitor_vdev_id, ret);
  501. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
  502. ar->monitor_vdev_id);
  503. return ret;
  504. }
  505. static int ath10k_monitor_vdev_create(struct ath10k *ar)
  506. {
  507. int bit, ret = 0;
  508. lockdep_assert_held(&ar->conf_mutex);
  509. if (ar->free_vdev_map == 0) {
  510. ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
  511. return -ENOMEM;
  512. }
  513. bit = __ffs64(ar->free_vdev_map);
  514. ar->monitor_vdev_id = bit;
  515. ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
  516. WMI_VDEV_TYPE_MONITOR,
  517. 0, ar->mac_addr);
  518. if (ret) {
  519. ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
  520. ar->monitor_vdev_id, ret);
  521. return ret;
  522. }
  523. ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
  524. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
  525. ar->monitor_vdev_id);
  526. return 0;
  527. }
  528. static int ath10k_monitor_vdev_delete(struct ath10k *ar)
  529. {
  530. int ret = 0;
  531. lockdep_assert_held(&ar->conf_mutex);
  532. ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
  533. if (ret) {
  534. ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
  535. ar->monitor_vdev_id, ret);
  536. return ret;
  537. }
  538. ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
  539. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
  540. ar->monitor_vdev_id);
  541. return ret;
  542. }
  543. static int ath10k_monitor_start(struct ath10k *ar)
  544. {
  545. int ret;
  546. lockdep_assert_held(&ar->conf_mutex);
  547. ret = ath10k_monitor_vdev_create(ar);
  548. if (ret) {
  549. ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
  550. return ret;
  551. }
  552. ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
  553. if (ret) {
  554. ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
  555. ath10k_monitor_vdev_delete(ar);
  556. return ret;
  557. }
  558. ar->monitor_started = true;
  559. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
  560. return 0;
  561. }
  562. static int ath10k_monitor_stop(struct ath10k *ar)
  563. {
  564. int ret;
  565. lockdep_assert_held(&ar->conf_mutex);
  566. ret = ath10k_monitor_vdev_stop(ar);
  567. if (ret) {
  568. ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
  569. return ret;
  570. }
  571. ret = ath10k_monitor_vdev_delete(ar);
  572. if (ret) {
  573. ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
  574. return ret;
  575. }
  576. ar->monitor_started = false;
  577. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
  578. return 0;
  579. }
  580. static int ath10k_monitor_recalc(struct ath10k *ar)
  581. {
  582. bool should_start;
  583. lockdep_assert_held(&ar->conf_mutex);
  584. should_start = ar->monitor ||
  585. ar->filter_flags & FIF_PROMISC_IN_BSS ||
  586. test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
  587. ath10k_dbg(ar, ATH10K_DBG_MAC,
  588. "mac monitor recalc started? %d should? %d\n",
  589. ar->monitor_started, should_start);
  590. if (should_start == ar->monitor_started)
  591. return 0;
  592. if (should_start)
  593. return ath10k_monitor_start(ar);
  594. return ath10k_monitor_stop(ar);
  595. }
  596. static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
  597. {
  598. struct ath10k *ar = arvif->ar;
  599. u32 vdev_param, rts_cts = 0;
  600. lockdep_assert_held(&ar->conf_mutex);
  601. vdev_param = ar->wmi.vdev_param->enable_rtscts;
  602. if (arvif->use_cts_prot || arvif->num_legacy_stations > 0)
  603. rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
  604. if (arvif->num_legacy_stations > 0)
  605. rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
  606. WMI_RTSCTS_PROFILE);
  607. return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  608. rts_cts);
  609. }
  610. static int ath10k_start_cac(struct ath10k *ar)
  611. {
  612. int ret;
  613. lockdep_assert_held(&ar->conf_mutex);
  614. set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
  615. ret = ath10k_monitor_recalc(ar);
  616. if (ret) {
  617. ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
  618. clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
  619. return ret;
  620. }
  621. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
  622. ar->monitor_vdev_id);
  623. return 0;
  624. }
  625. static int ath10k_stop_cac(struct ath10k *ar)
  626. {
  627. lockdep_assert_held(&ar->conf_mutex);
  628. /* CAC is not running - do nothing */
  629. if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
  630. return 0;
  631. clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
  632. ath10k_monitor_stop(ar);
  633. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
  634. return 0;
  635. }
  636. static void ath10k_recalc_radar_detection(struct ath10k *ar)
  637. {
  638. int ret;
  639. lockdep_assert_held(&ar->conf_mutex);
  640. ath10k_stop_cac(ar);
  641. if (!ar->radar_enabled)
  642. return;
  643. if (ar->num_started_vdevs > 0)
  644. return;
  645. ret = ath10k_start_cac(ar);
  646. if (ret) {
  647. /*
  648. * Not possible to start CAC on current channel so starting
  649. * radiation is not allowed, make this channel DFS_UNAVAILABLE
  650. * by indicating that radar was detected.
  651. */
  652. ath10k_warn(ar, "failed to start CAC: %d\n", ret);
  653. ieee80211_radar_detected(ar->hw);
  654. }
  655. }
  656. static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
  657. {
  658. struct ath10k *ar = arvif->ar;
  659. struct cfg80211_chan_def *chandef = &ar->chandef;
  660. struct wmi_vdev_start_request_arg arg = {};
  661. int ret = 0;
  662. lockdep_assert_held(&ar->conf_mutex);
  663. reinit_completion(&ar->vdev_setup_done);
  664. arg.vdev_id = arvif->vdev_id;
  665. arg.dtim_period = arvif->dtim_period;
  666. arg.bcn_intval = arvif->beacon_interval;
  667. arg.channel.freq = chandef->chan->center_freq;
  668. arg.channel.band_center_freq1 = chandef->center_freq1;
  669. arg.channel.mode = chan_to_phymode(chandef);
  670. arg.channel.min_power = 0;
  671. arg.channel.max_power = chandef->chan->max_power * 2;
  672. arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
  673. arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;
  674. if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
  675. arg.ssid = arvif->u.ap.ssid;
  676. arg.ssid_len = arvif->u.ap.ssid_len;
  677. arg.hidden_ssid = arvif->u.ap.hidden_ssid;
  678. /* For now allow DFS for AP mode */
  679. arg.channel.chan_radar =
  680. !!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
  681. } else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
  682. arg.ssid = arvif->vif->bss_conf.ssid;
  683. arg.ssid_len = arvif->vif->bss_conf.ssid_len;
  684. }
  685. ath10k_dbg(ar, ATH10K_DBG_MAC,
  686. "mac vdev %d start center_freq %d phymode %s\n",
  687. arg.vdev_id, arg.channel.freq,
  688. ath10k_wmi_phymode_str(arg.channel.mode));
  689. if (restart)
  690. ret = ath10k_wmi_vdev_restart(ar, &arg);
  691. else
  692. ret = ath10k_wmi_vdev_start(ar, &arg);
  693. if (ret) {
  694. ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
  695. arg.vdev_id, ret);
  696. return ret;
  697. }
  698. ret = ath10k_vdev_setup_sync(ar);
  699. if (ret) {
  700. ath10k_warn(ar, "failed to synchronise setup for vdev %i: %d\n",
  701. arg.vdev_id, ret);
  702. return ret;
  703. }
  704. ar->num_started_vdevs++;
  705. ath10k_recalc_radar_detection(ar);
  706. return ret;
  707. }
  708. static int ath10k_vdev_start(struct ath10k_vif *arvif)
  709. {
  710. return ath10k_vdev_start_restart(arvif, false);
  711. }
  712. static int ath10k_vdev_restart(struct ath10k_vif *arvif)
  713. {
  714. return ath10k_vdev_start_restart(arvif, true);
  715. }
  716. static int ath10k_vdev_stop(struct ath10k_vif *arvif)
  717. {
  718. struct ath10k *ar = arvif->ar;
  719. int ret;
  720. lockdep_assert_held(&ar->conf_mutex);
  721. reinit_completion(&ar->vdev_setup_done);
  722. ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
  723. if (ret) {
  724. ath10k_warn(ar, "failed to stop WMI vdev %i: %d\n",
  725. arvif->vdev_id, ret);
  726. return ret;
  727. }
  728. ret = ath10k_vdev_setup_sync(ar);
  729. if (ret) {
  730. ath10k_warn(ar, "failed to syncronise setup for vdev %i: %d\n",
  731. arvif->vdev_id, ret);
  732. return ret;
  733. }
  734. WARN_ON(ar->num_started_vdevs == 0);
  735. if (ar->num_started_vdevs != 0) {
  736. ar->num_started_vdevs--;
  737. ath10k_recalc_radar_detection(ar);
  738. }
  739. return ret;
  740. }
  741. static void ath10k_control_beaconing(struct ath10k_vif *arvif,
  742. struct ieee80211_bss_conf *info)
  743. {
  744. struct ath10k *ar = arvif->ar;
  745. int ret = 0;
  746. lockdep_assert_held(&arvif->ar->conf_mutex);
  747. if (!info->enable_beacon) {
  748. ath10k_vdev_stop(arvif);
  749. arvif->is_started = false;
  750. arvif->is_up = false;
  751. spin_lock_bh(&arvif->ar->data_lock);
  752. ath10k_mac_vif_beacon_free(arvif);
  753. spin_unlock_bh(&arvif->ar->data_lock);
  754. return;
  755. }
  756. arvif->tx_seq_no = 0x1000;
  757. ret = ath10k_vdev_start(arvif);
  758. if (ret)
  759. return;
  760. arvif->aid = 0;
  761. ether_addr_copy(arvif->bssid, info->bssid);
  762. ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
  763. arvif->bssid);
  764. if (ret) {
  765. ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
  766. arvif->vdev_id, ret);
  767. ath10k_vdev_stop(arvif);
  768. return;
  769. }
  770. arvif->is_started = true;
  771. arvif->is_up = true;
  772. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
  773. }
  774. static void ath10k_control_ibss(struct ath10k_vif *arvif,
  775. struct ieee80211_bss_conf *info,
  776. const u8 self_peer[ETH_ALEN])
  777. {
  778. struct ath10k *ar = arvif->ar;
  779. u32 vdev_param;
  780. int ret = 0;
  781. lockdep_assert_held(&arvif->ar->conf_mutex);
  782. if (!info->ibss_joined) {
  783. ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
  784. if (ret)
  785. ath10k_warn(ar, "failed to delete IBSS self peer %pM for vdev %d: %d\n",
  786. self_peer, arvif->vdev_id, ret);
  787. if (is_zero_ether_addr(arvif->bssid))
  788. return;
  789. memset(arvif->bssid, 0, ETH_ALEN);
  790. return;
  791. }
  792. ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer);
  793. if (ret) {
  794. ath10k_warn(ar, "failed to create IBSS self peer %pM for vdev %d: %d\n",
  795. self_peer, arvif->vdev_id, ret);
  796. return;
  797. }
  798. vdev_param = arvif->ar->wmi.vdev_param->atim_window;
  799. ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
  800. ATH10K_DEFAULT_ATIM);
  801. if (ret)
  802. ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
  803. arvif->vdev_id, ret);
  804. }
  805. /*
  806. * Review this when mac80211 gains per-interface powersave support.
  807. */
  808. static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
  809. {
  810. struct ath10k *ar = arvif->ar;
  811. struct ieee80211_conf *conf = &ar->hw->conf;
  812. enum wmi_sta_powersave_param param;
  813. enum wmi_sta_ps_mode psmode;
  814. int ret;
  815. lockdep_assert_held(&arvif->ar->conf_mutex);
  816. if (arvif->vif->type != NL80211_IFTYPE_STATION)
  817. return 0;
  818. if (conf->flags & IEEE80211_CONF_PS) {
  819. psmode = WMI_STA_PS_MODE_ENABLED;
  820. param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
  821. ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
  822. conf->dynamic_ps_timeout);
  823. if (ret) {
  824. ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
  825. arvif->vdev_id, ret);
  826. return ret;
  827. }
  828. } else {
  829. psmode = WMI_STA_PS_MODE_DISABLED;
  830. }
  831. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
  832. arvif->vdev_id, psmode ? "enable" : "disable");
  833. ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
  834. if (ret) {
  835. ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
  836. psmode, arvif->vdev_id, ret);
  837. return ret;
  838. }
  839. return 0;
  840. }
  841. /**********************/
  842. /* Station management */
  843. /**********************/
  844. static u32 ath10k_peer_assoc_h_listen_intval(struct ath10k *ar,
  845. struct ieee80211_vif *vif)
  846. {
  847. /* Some firmware revisions have unstable STA powersave when listen
  848. * interval is set too high (e.g. 5). The symptoms are firmware doesn't
  849. * generate NullFunc frames properly even if buffered frames have been
  850. * indicated in Beacon TIM. Firmware would seldom wake up to pull
  851. * buffered frames. Often pinging the device from AP would simply fail.
  852. *
  853. * As a workaround set it to 1.
  854. */
  855. if (vif->type == NL80211_IFTYPE_STATION)
  856. return 1;
  857. return ar->hw->conf.listen_interval;
  858. }
  859. static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
  860. struct ieee80211_vif *vif,
  861. struct ieee80211_sta *sta,
  862. struct wmi_peer_assoc_complete_arg *arg)
  863. {
  864. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  865. lockdep_assert_held(&ar->conf_mutex);
  866. ether_addr_copy(arg->addr, sta->addr);
  867. arg->vdev_id = arvif->vdev_id;
  868. arg->peer_aid = sta->aid;
  869. arg->peer_flags |= WMI_PEER_AUTH;
  870. arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
  871. arg->peer_num_spatial_streams = 1;
  872. arg->peer_caps = vif->bss_conf.assoc_capability;
  873. }
  874. static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
  875. struct ieee80211_vif *vif,
  876. struct wmi_peer_assoc_complete_arg *arg)
  877. {
  878. struct ieee80211_bss_conf *info = &vif->bss_conf;
  879. struct cfg80211_bss *bss;
  880. const u8 *rsnie = NULL;
  881. const u8 *wpaie = NULL;
  882. lockdep_assert_held(&ar->conf_mutex);
  883. bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
  884. info->bssid, NULL, 0, 0, 0);
  885. if (bss) {
  886. const struct cfg80211_bss_ies *ies;
  887. rcu_read_lock();
  888. rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
  889. ies = rcu_dereference(bss->ies);
  890. wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
  891. WLAN_OUI_TYPE_MICROSOFT_WPA,
  892. ies->data,
  893. ies->len);
  894. rcu_read_unlock();
  895. cfg80211_put_bss(ar->hw->wiphy, bss);
  896. }
  897. /* FIXME: base on RSN IE/WPA IE is a correct idea? */
  898. if (rsnie || wpaie) {
  899. ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
  900. arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
  901. }
  902. if (wpaie) {
  903. ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
  904. arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
  905. }
  906. }
  907. static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
  908. struct ieee80211_sta *sta,
  909. struct wmi_peer_assoc_complete_arg *arg)
  910. {
  911. struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
  912. const struct ieee80211_supported_band *sband;
  913. const struct ieee80211_rate *rates;
  914. u32 ratemask;
  915. int i;
  916. lockdep_assert_held(&ar->conf_mutex);
  917. sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
  918. ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
  919. rates = sband->bitrates;
  920. rateset->num_rates = 0;
  921. for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
  922. if (!(ratemask & 1))
  923. continue;
  924. rateset->rates[rateset->num_rates] = rates->hw_value;
  925. rateset->num_rates++;
  926. }
  927. }
  928. static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
  929. struct ieee80211_sta *sta,
  930. struct wmi_peer_assoc_complete_arg *arg)
  931. {
  932. const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
  933. int i, n;
  934. u32 stbc;
  935. lockdep_assert_held(&ar->conf_mutex);
  936. if (!ht_cap->ht_supported)
  937. return;
  938. arg->peer_flags |= WMI_PEER_HT;
  939. arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
  940. ht_cap->ampdu_factor)) - 1;
  941. arg->peer_mpdu_density =
  942. ath10k_parse_mpdudensity(ht_cap->ampdu_density);
  943. arg->peer_ht_caps = ht_cap->cap;
  944. arg->peer_rate_caps |= WMI_RC_HT_FLAG;
  945. if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
  946. arg->peer_flags |= WMI_PEER_LDPC;
  947. if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
  948. arg->peer_flags |= WMI_PEER_40MHZ;
  949. arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
  950. }
  951. if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
  952. arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
  953. if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
  954. arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
  955. if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
  956. arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
  957. arg->peer_flags |= WMI_PEER_STBC;
  958. }
  959. if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
  960. stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
  961. stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
  962. stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
  963. arg->peer_rate_caps |= stbc;
  964. arg->peer_flags |= WMI_PEER_STBC;
  965. }
  966. if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
  967. arg->peer_rate_caps |= WMI_RC_TS_FLAG;
  968. else if (ht_cap->mcs.rx_mask[1])
  969. arg->peer_rate_caps |= WMI_RC_DS_FLAG;
  970. for (i = 0, n = 0; i < IEEE80211_HT_MCS_MASK_LEN*8; i++)
  971. if (ht_cap->mcs.rx_mask[i/8] & (1 << i%8))
  972. arg->peer_ht_rates.rates[n++] = i;
  973. /*
  974. * This is a workaround for HT-enabled STAs which break the spec
  975. * and have no HT capabilities RX mask (no HT RX MCS map).
  976. *
  977. * As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
  978. * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
  979. *
  980. * Firmware asserts if such situation occurs.
  981. */
  982. if (n == 0) {
  983. arg->peer_ht_rates.num_rates = 8;
  984. for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
  985. arg->peer_ht_rates.rates[i] = i;
  986. } else {
  987. arg->peer_ht_rates.num_rates = n;
  988. arg->peer_num_spatial_streams = sta->rx_nss;
  989. }
  990. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
  991. arg->addr,
  992. arg->peer_ht_rates.num_rates,
  993. arg->peer_num_spatial_streams);
  994. }
  995. static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
  996. struct ath10k_vif *arvif,
  997. struct ieee80211_sta *sta)
  998. {
  999. u32 uapsd = 0;
  1000. u32 max_sp = 0;
  1001. int ret = 0;
  1002. lockdep_assert_held(&ar->conf_mutex);
  1003. if (sta->wme && sta->uapsd_queues) {
  1004. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
  1005. sta->uapsd_queues, sta->max_sp);
  1006. if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
  1007. uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
  1008. WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
  1009. if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
  1010. uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
  1011. WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
  1012. if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
  1013. uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
  1014. WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
  1015. if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
  1016. uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
  1017. WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
  1018. if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
  1019. max_sp = sta->max_sp;
  1020. ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
  1021. sta->addr,
  1022. WMI_AP_PS_PEER_PARAM_UAPSD,
  1023. uapsd);
  1024. if (ret) {
  1025. ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
  1026. arvif->vdev_id, ret);
  1027. return ret;
  1028. }
  1029. ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
  1030. sta->addr,
  1031. WMI_AP_PS_PEER_PARAM_MAX_SP,
  1032. max_sp);
  1033. if (ret) {
  1034. ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
  1035. arvif->vdev_id, ret);
  1036. return ret;
  1037. }
  1038. /* TODO setup this based on STA listen interval and
  1039. beacon interval. Currently we don't know
  1040. sta->listen_interval - mac80211 patch required.
  1041. Currently use 10 seconds */
  1042. ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
  1043. WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
  1044. 10);
  1045. if (ret) {
  1046. ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
  1047. arvif->vdev_id, ret);
  1048. return ret;
  1049. }
  1050. }
  1051. return 0;
  1052. }
  1053. static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
  1054. struct ieee80211_sta *sta,
  1055. struct wmi_peer_assoc_complete_arg *arg)
  1056. {
  1057. const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
  1058. u8 ampdu_factor;
  1059. if (!vht_cap->vht_supported)
  1060. return;
  1061. arg->peer_flags |= WMI_PEER_VHT;
  1062. arg->peer_vht_caps = vht_cap->cap;
  1063. ampdu_factor = (vht_cap->cap &
  1064. IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
  1065. IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
  1066. /* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
  1067. * zero in VHT IE. Using it would result in degraded throughput.
  1068. * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
  1069. * it if VHT max_mpdu is smaller. */
  1070. arg->peer_max_mpdu = max(arg->peer_max_mpdu,
  1071. (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
  1072. ampdu_factor)) - 1);
  1073. if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
  1074. arg->peer_flags |= WMI_PEER_80MHZ;
  1075. arg->peer_vht_rates.rx_max_rate =
  1076. __le16_to_cpu(vht_cap->vht_mcs.rx_highest);
  1077. arg->peer_vht_rates.rx_mcs_set =
  1078. __le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
  1079. arg->peer_vht_rates.tx_max_rate =
  1080. __le16_to_cpu(vht_cap->vht_mcs.tx_highest);
  1081. arg->peer_vht_rates.tx_mcs_set =
  1082. __le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
  1083. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
  1084. sta->addr, arg->peer_max_mpdu, arg->peer_flags);
  1085. }
  1086. static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
  1087. struct ieee80211_vif *vif,
  1088. struct ieee80211_sta *sta,
  1089. struct wmi_peer_assoc_complete_arg *arg)
  1090. {
  1091. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1092. switch (arvif->vdev_type) {
  1093. case WMI_VDEV_TYPE_AP:
  1094. if (sta->wme)
  1095. arg->peer_flags |= WMI_PEER_QOS;
  1096. if (sta->wme && sta->uapsd_queues) {
  1097. arg->peer_flags |= WMI_PEER_APSD;
  1098. arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
  1099. }
  1100. break;
  1101. case WMI_VDEV_TYPE_STA:
  1102. if (vif->bss_conf.qos)
  1103. arg->peer_flags |= WMI_PEER_QOS;
  1104. break;
  1105. default:
  1106. break;
  1107. }
  1108. }
  1109. static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
  1110. struct ieee80211_vif *vif,
  1111. struct ieee80211_sta *sta,
  1112. struct wmi_peer_assoc_complete_arg *arg)
  1113. {
  1114. enum wmi_phy_mode phymode = MODE_UNKNOWN;
  1115. switch (ar->hw->conf.chandef.chan->band) {
  1116. case IEEE80211_BAND_2GHZ:
  1117. if (sta->ht_cap.ht_supported) {
  1118. if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
  1119. phymode = MODE_11NG_HT40;
  1120. else
  1121. phymode = MODE_11NG_HT20;
  1122. } else {
  1123. phymode = MODE_11G;
  1124. }
  1125. break;
  1126. case IEEE80211_BAND_5GHZ:
  1127. /*
  1128. * Check VHT first.
  1129. */
  1130. if (sta->vht_cap.vht_supported) {
  1131. if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
  1132. phymode = MODE_11AC_VHT80;
  1133. else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
  1134. phymode = MODE_11AC_VHT40;
  1135. else if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
  1136. phymode = MODE_11AC_VHT20;
  1137. } else if (sta->ht_cap.ht_supported) {
  1138. if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
  1139. phymode = MODE_11NA_HT40;
  1140. else
  1141. phymode = MODE_11NA_HT20;
  1142. } else {
  1143. phymode = MODE_11A;
  1144. }
  1145. break;
  1146. default:
  1147. break;
  1148. }
  1149. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
  1150. sta->addr, ath10k_wmi_phymode_str(phymode));
  1151. arg->peer_phymode = phymode;
  1152. WARN_ON(phymode == MODE_UNKNOWN);
  1153. }
  1154. static int ath10k_peer_assoc_prepare(struct ath10k *ar,
  1155. struct ieee80211_vif *vif,
  1156. struct ieee80211_sta *sta,
  1157. struct wmi_peer_assoc_complete_arg *arg)
  1158. {
  1159. lockdep_assert_held(&ar->conf_mutex);
  1160. memset(arg, 0, sizeof(*arg));
  1161. ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
  1162. ath10k_peer_assoc_h_crypto(ar, vif, arg);
  1163. ath10k_peer_assoc_h_rates(ar, sta, arg);
  1164. ath10k_peer_assoc_h_ht(ar, sta, arg);
  1165. ath10k_peer_assoc_h_vht(ar, sta, arg);
  1166. ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
  1167. ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
  1168. return 0;
  1169. }
  1170. static const u32 ath10k_smps_map[] = {
  1171. [WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
  1172. [WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
  1173. [WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
  1174. [WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
  1175. };
  1176. static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
  1177. const u8 *addr,
  1178. const struct ieee80211_sta_ht_cap *ht_cap)
  1179. {
  1180. int smps;
  1181. if (!ht_cap->ht_supported)
  1182. return 0;
  1183. smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
  1184. smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
  1185. if (smps >= ARRAY_SIZE(ath10k_smps_map))
  1186. return -EINVAL;
  1187. return ath10k_wmi_peer_set_param(ar, arvif->vdev_id, addr,
  1188. WMI_PEER_SMPS_STATE,
  1189. ath10k_smps_map[smps]);
  1190. }
  1191. /* can be called only in mac80211 callbacks due to `key_count` usage */
  1192. static void ath10k_bss_assoc(struct ieee80211_hw *hw,
  1193. struct ieee80211_vif *vif,
  1194. struct ieee80211_bss_conf *bss_conf)
  1195. {
  1196. struct ath10k *ar = hw->priv;
  1197. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1198. struct ieee80211_sta_ht_cap ht_cap;
  1199. struct wmi_peer_assoc_complete_arg peer_arg;
  1200. struct ieee80211_sta *ap_sta;
  1201. int ret;
  1202. lockdep_assert_held(&ar->conf_mutex);
  1203. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
  1204. arvif->vdev_id, arvif->bssid, arvif->aid);
  1205. rcu_read_lock();
  1206. ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
  1207. if (!ap_sta) {
  1208. ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
  1209. bss_conf->bssid, arvif->vdev_id);
  1210. rcu_read_unlock();
  1211. return;
  1212. }
  1213. /* ap_sta must be accessed only within rcu section which must be left
  1214. * before calling ath10k_setup_peer_smps() which might sleep. */
  1215. ht_cap = ap_sta->ht_cap;
  1216. ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
  1217. if (ret) {
  1218. ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
  1219. bss_conf->bssid, arvif->vdev_id, ret);
  1220. rcu_read_unlock();
  1221. return;
  1222. }
  1223. rcu_read_unlock();
  1224. ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
  1225. if (ret) {
  1226. ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
  1227. bss_conf->bssid, arvif->vdev_id, ret);
  1228. return;
  1229. }
  1230. ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
  1231. if (ret) {
  1232. ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
  1233. arvif->vdev_id, ret);
  1234. return;
  1235. }
  1236. ath10k_dbg(ar, ATH10K_DBG_MAC,
  1237. "mac vdev %d up (associated) bssid %pM aid %d\n",
  1238. arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
  1239. WARN_ON(arvif->is_up);
  1240. arvif->aid = bss_conf->aid;
  1241. ether_addr_copy(arvif->bssid, bss_conf->bssid);
  1242. ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
  1243. if (ret) {
  1244. ath10k_warn(ar, "failed to set vdev %d up: %d\n",
  1245. arvif->vdev_id, ret);
  1246. return;
  1247. }
  1248. arvif->is_up = true;
  1249. }
  1250. static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
  1251. struct ieee80211_vif *vif)
  1252. {
  1253. struct ath10k *ar = hw->priv;
  1254. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1255. int ret;
  1256. lockdep_assert_held(&ar->conf_mutex);
  1257. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
  1258. arvif->vdev_id, arvif->bssid);
  1259. ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
  1260. if (ret)
  1261. ath10k_warn(ar, "faield to down vdev %i: %d\n",
  1262. arvif->vdev_id, ret);
  1263. arvif->def_wep_key_idx = 0;
  1264. arvif->is_up = false;
  1265. }
  1266. static int ath10k_station_assoc(struct ath10k *ar,
  1267. struct ieee80211_vif *vif,
  1268. struct ieee80211_sta *sta,
  1269. bool reassoc)
  1270. {
  1271. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1272. struct wmi_peer_assoc_complete_arg peer_arg;
  1273. int ret = 0;
  1274. lockdep_assert_held(&ar->conf_mutex);
  1275. ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
  1276. if (ret) {
  1277. ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
  1278. sta->addr, arvif->vdev_id, ret);
  1279. return ret;
  1280. }
  1281. peer_arg.peer_reassoc = reassoc;
  1282. ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
  1283. if (ret) {
  1284. ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
  1285. sta->addr, arvif->vdev_id, ret);
  1286. return ret;
  1287. }
  1288. /* Re-assoc is run only to update supported rates for given station. It
  1289. * doesn't make much sense to reconfigure the peer completely.
  1290. */
  1291. if (!reassoc) {
  1292. ret = ath10k_setup_peer_smps(ar, arvif, sta->addr,
  1293. &sta->ht_cap);
  1294. if (ret) {
  1295. ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
  1296. arvif->vdev_id, ret);
  1297. return ret;
  1298. }
  1299. ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
  1300. if (ret) {
  1301. ath10k_warn(ar, "failed to set qos params for STA %pM for vdev %i: %d\n",
  1302. sta->addr, arvif->vdev_id, ret);
  1303. return ret;
  1304. }
  1305. if (!sta->wme) {
  1306. arvif->num_legacy_stations++;
  1307. ret = ath10k_recalc_rtscts_prot(arvif);
  1308. if (ret) {
  1309. ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
  1310. arvif->vdev_id, ret);
  1311. return ret;
  1312. }
  1313. }
  1314. ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
  1315. if (ret) {
  1316. ath10k_warn(ar, "failed to install peer wep keys for vdev %i: %d\n",
  1317. arvif->vdev_id, ret);
  1318. return ret;
  1319. }
  1320. }
  1321. return ret;
  1322. }
  1323. static int ath10k_station_disassoc(struct ath10k *ar,
  1324. struct ieee80211_vif *vif,
  1325. struct ieee80211_sta *sta)
  1326. {
  1327. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1328. int ret = 0;
  1329. lockdep_assert_held(&ar->conf_mutex);
  1330. if (!sta->wme) {
  1331. arvif->num_legacy_stations--;
  1332. ret = ath10k_recalc_rtscts_prot(arvif);
  1333. if (ret) {
  1334. ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
  1335. arvif->vdev_id, ret);
  1336. return ret;
  1337. }
  1338. }
  1339. ret = ath10k_clear_peer_keys(arvif, sta->addr);
  1340. if (ret) {
  1341. ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
  1342. arvif->vdev_id, ret);
  1343. return ret;
  1344. }
  1345. return ret;
  1346. }
  1347. /**************/
  1348. /* Regulatory */
  1349. /**************/
  1350. static int ath10k_update_channel_list(struct ath10k *ar)
  1351. {
  1352. struct ieee80211_hw *hw = ar->hw;
  1353. struct ieee80211_supported_band **bands;
  1354. enum ieee80211_band band;
  1355. struct ieee80211_channel *channel;
  1356. struct wmi_scan_chan_list_arg arg = {0};
  1357. struct wmi_channel_arg *ch;
  1358. bool passive;
  1359. int len;
  1360. int ret;
  1361. int i;
  1362. lockdep_assert_held(&ar->conf_mutex);
  1363. bands = hw->wiphy->bands;
  1364. for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
  1365. if (!bands[band])
  1366. continue;
  1367. for (i = 0; i < bands[band]->n_channels; i++) {
  1368. if (bands[band]->channels[i].flags &
  1369. IEEE80211_CHAN_DISABLED)
  1370. continue;
  1371. arg.n_channels++;
  1372. }
  1373. }
  1374. len = sizeof(struct wmi_channel_arg) * arg.n_channels;
  1375. arg.channels = kzalloc(len, GFP_KERNEL);
  1376. if (!arg.channels)
  1377. return -ENOMEM;
  1378. ch = arg.channels;
  1379. for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
  1380. if (!bands[band])
  1381. continue;
  1382. for (i = 0; i < bands[band]->n_channels; i++) {
  1383. channel = &bands[band]->channels[i];
  1384. if (channel->flags & IEEE80211_CHAN_DISABLED)
  1385. continue;
  1386. ch->allow_ht = true;
  1387. /* FIXME: when should we really allow VHT? */
  1388. ch->allow_vht = true;
  1389. ch->allow_ibss =
  1390. !(channel->flags & IEEE80211_CHAN_NO_IR);
  1391. ch->ht40plus =
  1392. !(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
  1393. ch->chan_radar =
  1394. !!(channel->flags & IEEE80211_CHAN_RADAR);
  1395. passive = channel->flags & IEEE80211_CHAN_NO_IR;
  1396. ch->passive = passive;
  1397. ch->freq = channel->center_freq;
  1398. ch->band_center_freq1 = channel->center_freq;
  1399. ch->min_power = 0;
  1400. ch->max_power = channel->max_power * 2;
  1401. ch->max_reg_power = channel->max_reg_power * 2;
  1402. ch->max_antenna_gain = channel->max_antenna_gain * 2;
  1403. ch->reg_class_id = 0; /* FIXME */
  1404. /* FIXME: why use only legacy modes, why not any
  1405. * HT/VHT modes? Would that even make any
  1406. * difference? */
  1407. if (channel->band == IEEE80211_BAND_2GHZ)
  1408. ch->mode = MODE_11G;
  1409. else
  1410. ch->mode = MODE_11A;
  1411. if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
  1412. continue;
  1413. ath10k_dbg(ar, ATH10K_DBG_WMI,
  1414. "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
  1415. ch - arg.channels, arg.n_channels,
  1416. ch->freq, ch->max_power, ch->max_reg_power,
  1417. ch->max_antenna_gain, ch->mode);
  1418. ch++;
  1419. }
  1420. }
  1421. ret = ath10k_wmi_scan_chan_list(ar, &arg);
  1422. kfree(arg.channels);
  1423. return ret;
  1424. }
  1425. static enum wmi_dfs_region
  1426. ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
  1427. {
  1428. switch (dfs_region) {
  1429. case NL80211_DFS_UNSET:
  1430. return WMI_UNINIT_DFS_DOMAIN;
  1431. case NL80211_DFS_FCC:
  1432. return WMI_FCC_DFS_DOMAIN;
  1433. case NL80211_DFS_ETSI:
  1434. return WMI_ETSI_DFS_DOMAIN;
  1435. case NL80211_DFS_JP:
  1436. return WMI_MKK4_DFS_DOMAIN;
  1437. }
  1438. return WMI_UNINIT_DFS_DOMAIN;
  1439. }
  1440. static void ath10k_regd_update(struct ath10k *ar)
  1441. {
  1442. struct reg_dmn_pair_mapping *regpair;
  1443. int ret;
  1444. enum wmi_dfs_region wmi_dfs_reg;
  1445. enum nl80211_dfs_regions nl_dfs_reg;
  1446. lockdep_assert_held(&ar->conf_mutex);
  1447. ret = ath10k_update_channel_list(ar);
  1448. if (ret)
  1449. ath10k_warn(ar, "failed to update channel list: %d\n", ret);
  1450. regpair = ar->ath_common.regulatory.regpair;
  1451. if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
  1452. nl_dfs_reg = ar->dfs_detector->region;
  1453. wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
  1454. } else {
  1455. wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
  1456. }
  1457. /* Target allows setting up per-band regdomain but ath_common provides
  1458. * a combined one only */
  1459. ret = ath10k_wmi_pdev_set_regdomain(ar,
  1460. regpair->reg_domain,
  1461. regpair->reg_domain, /* 2ghz */
  1462. regpair->reg_domain, /* 5ghz */
  1463. regpair->reg_2ghz_ctl,
  1464. regpair->reg_5ghz_ctl,
  1465. wmi_dfs_reg);
  1466. if (ret)
  1467. ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
  1468. }
  1469. static void ath10k_reg_notifier(struct wiphy *wiphy,
  1470. struct regulatory_request *request)
  1471. {
  1472. struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
  1473. struct ath10k *ar = hw->priv;
  1474. bool result;
  1475. ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
  1476. if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
  1477. ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
  1478. request->dfs_region);
  1479. result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
  1480. request->dfs_region);
  1481. if (!result)
  1482. ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
  1483. request->dfs_region);
  1484. }
  1485. mutex_lock(&ar->conf_mutex);
  1486. if (ar->state == ATH10K_STATE_ON)
  1487. ath10k_regd_update(ar);
  1488. mutex_unlock(&ar->conf_mutex);
  1489. }
  1490. /***************/
  1491. /* TX handlers */
  1492. /***************/
  1493. static u8 ath10k_tx_h_get_tid(struct ieee80211_hdr *hdr)
  1494. {
  1495. if (ieee80211_is_mgmt(hdr->frame_control))
  1496. return HTT_DATA_TX_EXT_TID_MGMT;
  1497. if (!ieee80211_is_data_qos(hdr->frame_control))
  1498. return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
  1499. if (!is_unicast_ether_addr(ieee80211_get_DA(hdr)))
  1500. return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
  1501. return ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
  1502. }
  1503. static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar, struct ieee80211_vif *vif)
  1504. {
  1505. if (vif)
  1506. return ath10k_vif_to_arvif(vif)->vdev_id;
  1507. if (ar->monitor_started)
  1508. return ar->monitor_vdev_id;
  1509. ath10k_warn(ar, "failed to resolve vdev id\n");
  1510. return 0;
  1511. }
  1512. /* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
  1513. * Control in the header.
  1514. */
  1515. static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
  1516. {
  1517. struct ieee80211_hdr *hdr = (void *)skb->data;
  1518. struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
  1519. u8 *qos_ctl;
  1520. if (!ieee80211_is_data_qos(hdr->frame_control))
  1521. return;
  1522. qos_ctl = ieee80211_get_qos_ctl(hdr);
  1523. memmove(skb->data + IEEE80211_QOS_CTL_LEN,
  1524. skb->data, (void *)qos_ctl - (void *)skb->data);
  1525. skb_pull(skb, IEEE80211_QOS_CTL_LEN);
  1526. /* Fw/Hw generates a corrupted QoS Control Field for QoS NullFunc
  1527. * frames. Powersave is handled by the fw/hw so QoS NyllFunc frames are
  1528. * used only for CQM purposes (e.g. hostapd station keepalive ping) so
  1529. * it is safe to downgrade to NullFunc.
  1530. */
  1531. if (ieee80211_is_qos_nullfunc(hdr->frame_control)) {
  1532. hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
  1533. cb->htt.tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
  1534. }
  1535. }
  1536. static void ath10k_tx_wep_key_work(struct work_struct *work)
  1537. {
  1538. struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
  1539. wep_key_work);
  1540. struct ath10k *ar = arvif->ar;
  1541. int ret, keyidx = arvif->def_wep_key_newidx;
  1542. mutex_lock(&arvif->ar->conf_mutex);
  1543. if (arvif->ar->state != ATH10K_STATE_ON)
  1544. goto unlock;
  1545. if (arvif->def_wep_key_idx == keyidx)
  1546. goto unlock;
  1547. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
  1548. arvif->vdev_id, keyidx);
  1549. ret = ath10k_wmi_vdev_set_param(arvif->ar,
  1550. arvif->vdev_id,
  1551. arvif->ar->wmi.vdev_param->def_keyid,
  1552. keyidx);
  1553. if (ret) {
  1554. ath10k_warn(ar, "failed to update wep key index for vdev %d: %d\n",
  1555. arvif->vdev_id,
  1556. ret);
  1557. goto unlock;
  1558. }
  1559. arvif->def_wep_key_idx = keyidx;
  1560. unlock:
  1561. mutex_unlock(&arvif->ar->conf_mutex);
  1562. }
  1563. static void ath10k_tx_h_update_wep_key(struct ieee80211_vif *vif,
  1564. struct ieee80211_key_conf *key,
  1565. struct sk_buff *skb)
  1566. {
  1567. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1568. struct ath10k *ar = arvif->ar;
  1569. struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  1570. if (!ieee80211_has_protected(hdr->frame_control))
  1571. return;
  1572. if (!key)
  1573. return;
  1574. if (key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
  1575. key->cipher != WLAN_CIPHER_SUITE_WEP104)
  1576. return;
  1577. if (key->keyidx == arvif->def_wep_key_idx)
  1578. return;
  1579. /* FIXME: Most likely a few frames will be TXed with an old key. Simply
  1580. * queueing frames until key index is updated is not an option because
  1581. * sk_buff may need more processing to be done, e.g. offchannel */
  1582. arvif->def_wep_key_newidx = key->keyidx;
  1583. ieee80211_queue_work(ar->hw, &arvif->wep_key_work);
  1584. }
  1585. static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
  1586. struct ieee80211_vif *vif,
  1587. struct sk_buff *skb)
  1588. {
  1589. struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  1590. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  1591. /* This is case only for P2P_GO */
  1592. if (arvif->vdev_type != WMI_VDEV_TYPE_AP ||
  1593. arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
  1594. return;
  1595. if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
  1596. spin_lock_bh(&ar->data_lock);
  1597. if (arvif->u.ap.noa_data)
  1598. if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
  1599. GFP_ATOMIC))
  1600. memcpy(skb_put(skb, arvif->u.ap.noa_len),
  1601. arvif->u.ap.noa_data,
  1602. arvif->u.ap.noa_len);
  1603. spin_unlock_bh(&ar->data_lock);
  1604. }
  1605. }
  1606. static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
  1607. {
  1608. struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  1609. int ret = 0;
  1610. if (ar->htt.target_version_major >= 3) {
  1611. /* Since HTT 3.0 there is no separate mgmt tx command */
  1612. ret = ath10k_htt_tx(&ar->htt, skb);
  1613. goto exit;
  1614. }
  1615. if (ieee80211_is_mgmt(hdr->frame_control)) {
  1616. if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
  1617. ar->fw_features)) {
  1618. if (skb_queue_len(&ar->wmi_mgmt_tx_queue) >=
  1619. ATH10K_MAX_NUM_MGMT_PENDING) {
  1620. ath10k_warn(ar, "reached WMI management transmit queue limit\n");
  1621. ret = -EBUSY;
  1622. goto exit;
  1623. }
  1624. skb_queue_tail(&ar->wmi_mgmt_tx_queue, skb);
  1625. ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
  1626. } else {
  1627. ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
  1628. }
  1629. } else if (!test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
  1630. ar->fw_features) &&
  1631. ieee80211_is_nullfunc(hdr->frame_control)) {
  1632. /* FW does not report tx status properly for NullFunc frames
  1633. * unless they are sent through mgmt tx path. mac80211 sends
  1634. * those frames when it detects link/beacon loss and depends
  1635. * on the tx status to be correct. */
  1636. ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
  1637. } else {
  1638. ret = ath10k_htt_tx(&ar->htt, skb);
  1639. }
  1640. exit:
  1641. if (ret) {
  1642. ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
  1643. ret);
  1644. ieee80211_free_txskb(ar->hw, skb);
  1645. }
  1646. }
  1647. void ath10k_offchan_tx_purge(struct ath10k *ar)
  1648. {
  1649. struct sk_buff *skb;
  1650. for (;;) {
  1651. skb = skb_dequeue(&ar->offchan_tx_queue);
  1652. if (!skb)
  1653. break;
  1654. ieee80211_free_txskb(ar->hw, skb);
  1655. }
  1656. }
  1657. void ath10k_offchan_tx_work(struct work_struct *work)
  1658. {
  1659. struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
  1660. struct ath10k_peer *peer;
  1661. struct ieee80211_hdr *hdr;
  1662. struct sk_buff *skb;
  1663. const u8 *peer_addr;
  1664. int vdev_id;
  1665. int ret;
  1666. /* FW requirement: We must create a peer before FW will send out
  1667. * an offchannel frame. Otherwise the frame will be stuck and
  1668. * never transmitted. We delete the peer upon tx completion.
  1669. * It is unlikely that a peer for offchannel tx will already be
  1670. * present. However it may be in some rare cases so account for that.
  1671. * Otherwise we might remove a legitimate peer and break stuff. */
  1672. for (;;) {
  1673. skb = skb_dequeue(&ar->offchan_tx_queue);
  1674. if (!skb)
  1675. break;
  1676. mutex_lock(&ar->conf_mutex);
  1677. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %p\n",
  1678. skb);
  1679. hdr = (struct ieee80211_hdr *)skb->data;
  1680. peer_addr = ieee80211_get_DA(hdr);
  1681. vdev_id = ATH10K_SKB_CB(skb)->vdev_id;
  1682. spin_lock_bh(&ar->data_lock);
  1683. peer = ath10k_peer_find(ar, vdev_id, peer_addr);
  1684. spin_unlock_bh(&ar->data_lock);
  1685. if (peer)
  1686. /* FIXME: should this use ath10k_warn()? */
  1687. ath10k_dbg(ar, ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
  1688. peer_addr, vdev_id);
  1689. if (!peer) {
  1690. ret = ath10k_peer_create(ar, vdev_id, peer_addr);
  1691. if (ret)
  1692. ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
  1693. peer_addr, vdev_id, ret);
  1694. }
  1695. spin_lock_bh(&ar->data_lock);
  1696. reinit_completion(&ar->offchan_tx_completed);
  1697. ar->offchan_tx_skb = skb;
  1698. spin_unlock_bh(&ar->data_lock);
  1699. ath10k_tx_htt(ar, skb);
  1700. ret = wait_for_completion_timeout(&ar->offchan_tx_completed,
  1701. 3 * HZ);
  1702. if (ret <= 0)
  1703. ath10k_warn(ar, "timed out waiting for offchannel skb %p\n",
  1704. skb);
  1705. if (!peer) {
  1706. ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
  1707. if (ret)
  1708. ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
  1709. peer_addr, vdev_id, ret);
  1710. }
  1711. mutex_unlock(&ar->conf_mutex);
  1712. }
  1713. }
  1714. void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
  1715. {
  1716. struct sk_buff *skb;
  1717. for (;;) {
  1718. skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
  1719. if (!skb)
  1720. break;
  1721. ieee80211_free_txskb(ar->hw, skb);
  1722. }
  1723. }
  1724. void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
  1725. {
  1726. struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
  1727. struct sk_buff *skb;
  1728. int ret;
  1729. for (;;) {
  1730. skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
  1731. if (!skb)
  1732. break;
  1733. ret = ath10k_wmi_mgmt_tx(ar, skb);
  1734. if (ret) {
  1735. ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
  1736. ret);
  1737. ieee80211_free_txskb(ar->hw, skb);
  1738. }
  1739. }
  1740. }
  1741. /************/
  1742. /* Scanning */
  1743. /************/
  1744. void __ath10k_scan_finish(struct ath10k *ar)
  1745. {
  1746. lockdep_assert_held(&ar->data_lock);
  1747. switch (ar->scan.state) {
  1748. case ATH10K_SCAN_IDLE:
  1749. break;
  1750. case ATH10K_SCAN_RUNNING:
  1751. case ATH10K_SCAN_ABORTING:
  1752. if (ar->scan.is_roc)
  1753. ieee80211_remain_on_channel_expired(ar->hw);
  1754. else
  1755. ieee80211_scan_completed(ar->hw,
  1756. (ar->scan.state ==
  1757. ATH10K_SCAN_ABORTING));
  1758. /* fall through */
  1759. case ATH10K_SCAN_STARTING:
  1760. ar->scan.state = ATH10K_SCAN_IDLE;
  1761. ar->scan_channel = NULL;
  1762. ath10k_offchan_tx_purge(ar);
  1763. cancel_delayed_work(&ar->scan.timeout);
  1764. complete_all(&ar->scan.completed);
  1765. break;
  1766. }
  1767. }
  1768. void ath10k_scan_finish(struct ath10k *ar)
  1769. {
  1770. spin_lock_bh(&ar->data_lock);
  1771. __ath10k_scan_finish(ar);
  1772. spin_unlock_bh(&ar->data_lock);
  1773. }
  1774. static int ath10k_scan_stop(struct ath10k *ar)
  1775. {
  1776. struct wmi_stop_scan_arg arg = {
  1777. .req_id = 1, /* FIXME */
  1778. .req_type = WMI_SCAN_STOP_ONE,
  1779. .u.scan_id = ATH10K_SCAN_ID,
  1780. };
  1781. int ret;
  1782. lockdep_assert_held(&ar->conf_mutex);
  1783. ret = ath10k_wmi_stop_scan(ar, &arg);
  1784. if (ret) {
  1785. ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
  1786. goto out;
  1787. }
  1788. ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
  1789. if (ret == 0) {
  1790. ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
  1791. ret = -ETIMEDOUT;
  1792. } else if (ret > 0) {
  1793. ret = 0;
  1794. }
  1795. out:
  1796. /* Scan state should be updated upon scan completion but in case
  1797. * firmware fails to deliver the event (for whatever reason) it is
  1798. * desired to clean up scan state anyway. Firmware may have just
  1799. * dropped the scan completion event delivery due to transport pipe
  1800. * being overflown with data and/or it can recover on its own before
  1801. * next scan request is submitted.
  1802. */
  1803. spin_lock_bh(&ar->data_lock);
  1804. if (ar->scan.state != ATH10K_SCAN_IDLE)
  1805. __ath10k_scan_finish(ar);
  1806. spin_unlock_bh(&ar->data_lock);
  1807. return ret;
  1808. }
  1809. static void ath10k_scan_abort(struct ath10k *ar)
  1810. {
  1811. int ret;
  1812. lockdep_assert_held(&ar->conf_mutex);
  1813. spin_lock_bh(&ar->data_lock);
  1814. switch (ar->scan.state) {
  1815. case ATH10K_SCAN_IDLE:
  1816. /* This can happen if timeout worker kicked in and called
  1817. * abortion while scan completion was being processed.
  1818. */
  1819. break;
  1820. case ATH10K_SCAN_STARTING:
  1821. case ATH10K_SCAN_ABORTING:
  1822. ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
  1823. ath10k_scan_state_str(ar->scan.state),
  1824. ar->scan.state);
  1825. break;
  1826. case ATH10K_SCAN_RUNNING:
  1827. ar->scan.state = ATH10K_SCAN_ABORTING;
  1828. spin_unlock_bh(&ar->data_lock);
  1829. ret = ath10k_scan_stop(ar);
  1830. if (ret)
  1831. ath10k_warn(ar, "failed to abort scan: %d\n", ret);
  1832. spin_lock_bh(&ar->data_lock);
  1833. break;
  1834. }
  1835. spin_unlock_bh(&ar->data_lock);
  1836. }
  1837. void ath10k_scan_timeout_work(struct work_struct *work)
  1838. {
  1839. struct ath10k *ar = container_of(work, struct ath10k,
  1840. scan.timeout.work);
  1841. mutex_lock(&ar->conf_mutex);
  1842. ath10k_scan_abort(ar);
  1843. mutex_unlock(&ar->conf_mutex);
  1844. }
  1845. static int ath10k_start_scan(struct ath10k *ar,
  1846. const struct wmi_start_scan_arg *arg)
  1847. {
  1848. int ret;
  1849. lockdep_assert_held(&ar->conf_mutex);
  1850. ret = ath10k_wmi_start_scan(ar, arg);
  1851. if (ret)
  1852. return ret;
  1853. ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
  1854. if (ret == 0) {
  1855. ret = ath10k_scan_stop(ar);
  1856. if (ret)
  1857. ath10k_warn(ar, "failed to stop scan: %d\n", ret);
  1858. return -ETIMEDOUT;
  1859. }
  1860. /* Add a 200ms margin to account for event/command processing */
  1861. ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
  1862. msecs_to_jiffies(arg->max_scan_time+200));
  1863. return 0;
  1864. }
  1865. /**********************/
  1866. /* mac80211 callbacks */
  1867. /**********************/
  1868. static void ath10k_tx(struct ieee80211_hw *hw,
  1869. struct ieee80211_tx_control *control,
  1870. struct sk_buff *skb)
  1871. {
  1872. struct ath10k *ar = hw->priv;
  1873. struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
  1874. struct ieee80211_vif *vif = info->control.vif;
  1875. struct ieee80211_key_conf *key = info->control.hw_key;
  1876. struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
  1877. /* We should disable CCK RATE due to P2P */
  1878. if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
  1879. ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
  1880. ATH10K_SKB_CB(skb)->htt.is_offchan = false;
  1881. ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
  1882. ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);
  1883. /* it makes no sense to process injected frames like that */
  1884. if (vif && vif->type != NL80211_IFTYPE_MONITOR) {
  1885. ath10k_tx_h_nwifi(hw, skb);
  1886. ath10k_tx_h_update_wep_key(vif, key, skb);
  1887. ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
  1888. ath10k_tx_h_seq_no(vif, skb);
  1889. }
  1890. if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
  1891. spin_lock_bh(&ar->data_lock);
  1892. ATH10K_SKB_CB(skb)->htt.is_offchan = true;
  1893. ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
  1894. spin_unlock_bh(&ar->data_lock);
  1895. ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %p\n",
  1896. skb);
  1897. skb_queue_tail(&ar->offchan_tx_queue, skb);
  1898. ieee80211_queue_work(hw, &ar->offchan_tx_work);
  1899. return;
  1900. }
  1901. ath10k_tx_htt(ar, skb);
  1902. }
  1903. /* Must not be called with conf_mutex held as workers can use that also. */
  1904. static void ath10k_drain_tx(struct ath10k *ar)
  1905. {
  1906. /* make sure rcu-protected mac80211 tx path itself is drained */
  1907. synchronize_net();
  1908. ath10k_offchan_tx_purge(ar);
  1909. ath10k_mgmt_over_wmi_tx_purge(ar);
  1910. cancel_work_sync(&ar->offchan_tx_work);
  1911. cancel_work_sync(&ar->wmi_mgmt_tx_work);
  1912. }
  1913. void ath10k_halt(struct ath10k *ar)
  1914. {
  1915. struct ath10k_vif *arvif;
  1916. lockdep_assert_held(&ar->conf_mutex);
  1917. clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
  1918. ar->filter_flags = 0;
  1919. ar->monitor = false;
  1920. if (ar->monitor_started)
  1921. ath10k_monitor_stop(ar);
  1922. ar->monitor_started = false;
  1923. ath10k_scan_finish(ar);
  1924. ath10k_peer_cleanup_all(ar);
  1925. ath10k_core_stop(ar);
  1926. ath10k_hif_power_down(ar);
  1927. spin_lock_bh(&ar->data_lock);
  1928. list_for_each_entry(arvif, &ar->arvifs, list)
  1929. ath10k_mac_vif_beacon_cleanup(arvif);
  1930. spin_unlock_bh(&ar->data_lock);
  1931. }
  1932. static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
  1933. {
  1934. struct ath10k *ar = hw->priv;
  1935. mutex_lock(&ar->conf_mutex);
  1936. if (ar->cfg_tx_chainmask) {
  1937. *tx_ant = ar->cfg_tx_chainmask;
  1938. *rx_ant = ar->cfg_rx_chainmask;
  1939. } else {
  1940. *tx_ant = ar->supp_tx_chainmask;
  1941. *rx_ant = ar->supp_rx_chainmask;
  1942. }
  1943. mutex_unlock(&ar->conf_mutex);
  1944. return 0;
  1945. }
  1946. static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
  1947. {
  1948. int ret;
  1949. lockdep_assert_held(&ar->conf_mutex);
  1950. ar->cfg_tx_chainmask = tx_ant;
  1951. ar->cfg_rx_chainmask = rx_ant;
  1952. if ((ar->state != ATH10K_STATE_ON) &&
  1953. (ar->state != ATH10K_STATE_RESTARTED))
  1954. return 0;
  1955. ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
  1956. tx_ant);
  1957. if (ret) {
  1958. ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
  1959. ret, tx_ant);
  1960. return ret;
  1961. }
  1962. ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
  1963. rx_ant);
  1964. if (ret) {
  1965. ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
  1966. ret, rx_ant);
  1967. return ret;
  1968. }
  1969. return 0;
  1970. }
  1971. static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
  1972. {
  1973. struct ath10k *ar = hw->priv;
  1974. int ret;
  1975. mutex_lock(&ar->conf_mutex);
  1976. ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
  1977. mutex_unlock(&ar->conf_mutex);
  1978. return ret;
  1979. }
  1980. static int ath10k_start(struct ieee80211_hw *hw)
  1981. {
  1982. struct ath10k *ar = hw->priv;
  1983. int ret = 0;
  1984. /*
  1985. * This makes sense only when restarting hw. It is harmless to call
  1986. * uncoditionally. This is necessary to make sure no HTT/WMI tx
  1987. * commands will be submitted while restarting.
  1988. */
  1989. ath10k_drain_tx(ar);
  1990. mutex_lock(&ar->conf_mutex);
  1991. switch (ar->state) {
  1992. case ATH10K_STATE_OFF:
  1993. ar->state = ATH10K_STATE_ON;
  1994. break;
  1995. case ATH10K_STATE_RESTARTING:
  1996. ath10k_halt(ar);
  1997. ar->state = ATH10K_STATE_RESTARTED;
  1998. break;
  1999. case ATH10K_STATE_ON:
  2000. case ATH10K_STATE_RESTARTED:
  2001. case ATH10K_STATE_WEDGED:
  2002. WARN_ON(1);
  2003. ret = -EINVAL;
  2004. goto err;
  2005. case ATH10K_STATE_UTF:
  2006. ret = -EBUSY;
  2007. goto err;
  2008. }
  2009. ret = ath10k_hif_power_up(ar);
  2010. if (ret) {
  2011. ath10k_err(ar, "Could not init hif: %d\n", ret);
  2012. goto err_off;
  2013. }
  2014. ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
  2015. if (ret) {
  2016. ath10k_err(ar, "Could not init core: %d\n", ret);
  2017. goto err_power_down;
  2018. }
  2019. ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
  2020. if (ret) {
  2021. ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
  2022. goto err_core_stop;
  2023. }
  2024. ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
  2025. if (ret) {
  2026. ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
  2027. goto err_core_stop;
  2028. }
  2029. if (ar->cfg_tx_chainmask)
  2030. __ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
  2031. ar->cfg_rx_chainmask);
  2032. /*
  2033. * By default FW set ARP frames ac to voice (6). In that case ARP
  2034. * exchange is not working properly for UAPSD enabled AP. ARP requests
  2035. * which arrives with access category 0 are processed by network stack
  2036. * and send back with access category 0, but FW changes access category
  2037. * to 6. Set ARP frames access category to best effort (0) solves
  2038. * this problem.
  2039. */
  2040. ret = ath10k_wmi_pdev_set_param(ar,
  2041. ar->wmi.pdev_param->arp_ac_override, 0);
  2042. if (ret) {
  2043. ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
  2044. ret);
  2045. goto err_core_stop;
  2046. }
  2047. ar->num_started_vdevs = 0;
  2048. ath10k_regd_update(ar);
  2049. ath10k_spectral_start(ar);
  2050. mutex_unlock(&ar->conf_mutex);
  2051. return 0;
  2052. err_core_stop:
  2053. ath10k_core_stop(ar);
  2054. err_power_down:
  2055. ath10k_hif_power_down(ar);
  2056. err_off:
  2057. ar->state = ATH10K_STATE_OFF;
  2058. err:
  2059. mutex_unlock(&ar->conf_mutex);
  2060. return ret;
  2061. }
  2062. static void ath10k_stop(struct ieee80211_hw *hw)
  2063. {
  2064. struct ath10k *ar = hw->priv;
  2065. ath10k_drain_tx(ar);
  2066. mutex_lock(&ar->conf_mutex);
  2067. if (ar->state != ATH10K_STATE_OFF) {
  2068. ath10k_halt(ar);
  2069. ar->state = ATH10K_STATE_OFF;
  2070. }
  2071. mutex_unlock(&ar->conf_mutex);
  2072. cancel_delayed_work_sync(&ar->scan.timeout);
  2073. cancel_work_sync(&ar->restart_work);
  2074. }
  2075. static int ath10k_config_ps(struct ath10k *ar)
  2076. {
  2077. struct ath10k_vif *arvif;
  2078. int ret = 0;
  2079. lockdep_assert_held(&ar->conf_mutex);
  2080. list_for_each_entry(arvif, &ar->arvifs, list) {
  2081. ret = ath10k_mac_vif_setup_ps(arvif);
  2082. if (ret) {
  2083. ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
  2084. break;
  2085. }
  2086. }
  2087. return ret;
  2088. }
  2089. static const char *chandef_get_width(enum nl80211_chan_width width)
  2090. {
  2091. switch (width) {
  2092. case NL80211_CHAN_WIDTH_20_NOHT:
  2093. return "20 (noht)";
  2094. case NL80211_CHAN_WIDTH_20:
  2095. return "20";
  2096. case NL80211_CHAN_WIDTH_40:
  2097. return "40";
  2098. case NL80211_CHAN_WIDTH_80:
  2099. return "80";
  2100. case NL80211_CHAN_WIDTH_80P80:
  2101. return "80+80";
  2102. case NL80211_CHAN_WIDTH_160:
  2103. return "160";
  2104. case NL80211_CHAN_WIDTH_5:
  2105. return "5";
  2106. case NL80211_CHAN_WIDTH_10:
  2107. return "10";
  2108. }
  2109. return "?";
  2110. }
  2111. static void ath10k_config_chan(struct ath10k *ar)
  2112. {
  2113. struct ath10k_vif *arvif;
  2114. int ret;
  2115. lockdep_assert_held(&ar->conf_mutex);
  2116. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2117. "mac config channel to %dMHz (cf1 %dMHz cf2 %dMHz width %s)\n",
  2118. ar->chandef.chan->center_freq,
  2119. ar->chandef.center_freq1,
  2120. ar->chandef.center_freq2,
  2121. chandef_get_width(ar->chandef.width));
  2122. /* First stop monitor interface. Some FW versions crash if there's a
  2123. * lone monitor interface. */
  2124. if (ar->monitor_started)
  2125. ath10k_monitor_stop(ar);
  2126. list_for_each_entry(arvif, &ar->arvifs, list) {
  2127. if (!arvif->is_started)
  2128. continue;
  2129. if (!arvif->is_up)
  2130. continue;
  2131. if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
  2132. continue;
  2133. ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
  2134. if (ret) {
  2135. ath10k_warn(ar, "failed to down vdev %d: %d\n",
  2136. arvif->vdev_id, ret);
  2137. continue;
  2138. }
  2139. }
  2140. /* all vdevs are downed now - attempt to restart and re-up them */
  2141. list_for_each_entry(arvif, &ar->arvifs, list) {
  2142. if (!arvif->is_started)
  2143. continue;
  2144. if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
  2145. continue;
  2146. ret = ath10k_vdev_restart(arvif);
  2147. if (ret) {
  2148. ath10k_warn(ar, "failed to restart vdev %d: %d\n",
  2149. arvif->vdev_id, ret);
  2150. continue;
  2151. }
  2152. if (!arvif->is_up)
  2153. continue;
  2154. ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
  2155. arvif->bssid);
  2156. if (ret) {
  2157. ath10k_warn(ar, "failed to bring vdev up %d: %d\n",
  2158. arvif->vdev_id, ret);
  2159. continue;
  2160. }
  2161. }
  2162. ath10k_monitor_recalc(ar);
  2163. }
  2164. static int ath10k_mac_txpower_setup(struct ath10k *ar, int txpower)
  2165. {
  2166. int ret;
  2167. u32 param;
  2168. lockdep_assert_held(&ar->conf_mutex);
  2169. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac txpower %d\n", txpower);
  2170. param = ar->wmi.pdev_param->txpower_limit2g;
  2171. ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
  2172. if (ret) {
  2173. ath10k_warn(ar, "failed to set 2g txpower %d: %d\n",
  2174. txpower, ret);
  2175. return ret;
  2176. }
  2177. param = ar->wmi.pdev_param->txpower_limit5g;
  2178. ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
  2179. if (ret) {
  2180. ath10k_warn(ar, "failed to set 5g txpower %d: %d\n",
  2181. txpower, ret);
  2182. return ret;
  2183. }
  2184. return 0;
  2185. }
  2186. static int ath10k_mac_txpower_recalc(struct ath10k *ar)
  2187. {
  2188. struct ath10k_vif *arvif;
  2189. int ret, txpower = -1;
  2190. lockdep_assert_held(&ar->conf_mutex);
  2191. list_for_each_entry(arvif, &ar->arvifs, list) {
  2192. WARN_ON(arvif->txpower < 0);
  2193. if (txpower == -1)
  2194. txpower = arvif->txpower;
  2195. else
  2196. txpower = min(txpower, arvif->txpower);
  2197. }
  2198. if (WARN_ON(txpower == -1))
  2199. return -EINVAL;
  2200. ret = ath10k_mac_txpower_setup(ar, txpower);
  2201. if (ret) {
  2202. ath10k_warn(ar, "failed to setup tx power %d: %d\n",
  2203. txpower, ret);
  2204. return ret;
  2205. }
  2206. return 0;
  2207. }
  2208. static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
  2209. {
  2210. struct ath10k *ar = hw->priv;
  2211. struct ieee80211_conf *conf = &hw->conf;
  2212. int ret = 0;
  2213. mutex_lock(&ar->conf_mutex);
  2214. if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
  2215. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2216. "mac config channel %dMHz flags 0x%x radar %d\n",
  2217. conf->chandef.chan->center_freq,
  2218. conf->chandef.chan->flags,
  2219. conf->radar_enabled);
  2220. spin_lock_bh(&ar->data_lock);
  2221. ar->rx_channel = conf->chandef.chan;
  2222. spin_unlock_bh(&ar->data_lock);
  2223. ar->radar_enabled = conf->radar_enabled;
  2224. ath10k_recalc_radar_detection(ar);
  2225. if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
  2226. ar->chandef = conf->chandef;
  2227. ath10k_config_chan(ar);
  2228. }
  2229. }
  2230. if (changed & IEEE80211_CONF_CHANGE_PS)
  2231. ath10k_config_ps(ar);
  2232. if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
  2233. ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
  2234. ret = ath10k_monitor_recalc(ar);
  2235. if (ret)
  2236. ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
  2237. }
  2238. mutex_unlock(&ar->conf_mutex);
  2239. return ret;
  2240. }
  2241. /*
  2242. * TODO:
  2243. * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
  2244. * because we will send mgmt frames without CCK. This requirement
  2245. * for P2P_FIND/GO_NEG should be handled by checking CCK flag
  2246. * in the TX packet.
  2247. */
  2248. static int ath10k_add_interface(struct ieee80211_hw *hw,
  2249. struct ieee80211_vif *vif)
  2250. {
  2251. struct ath10k *ar = hw->priv;
  2252. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2253. enum wmi_sta_powersave_param param;
  2254. int ret = 0;
  2255. u32 value;
  2256. int bit;
  2257. u32 vdev_param;
  2258. mutex_lock(&ar->conf_mutex);
  2259. memset(arvif, 0, sizeof(*arvif));
  2260. arvif->ar = ar;
  2261. arvif->vif = vif;
  2262. INIT_WORK(&arvif->wep_key_work, ath10k_tx_wep_key_work);
  2263. INIT_LIST_HEAD(&arvif->list);
  2264. if (ar->free_vdev_map == 0) {
  2265. ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
  2266. ret = -EBUSY;
  2267. goto err;
  2268. }
  2269. bit = __ffs64(ar->free_vdev_map);
  2270. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
  2271. bit, ar->free_vdev_map);
  2272. arvif->vdev_id = bit;
  2273. arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
  2274. if (ar->p2p)
  2275. arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
  2276. switch (vif->type) {
  2277. case NL80211_IFTYPE_UNSPECIFIED:
  2278. case NL80211_IFTYPE_STATION:
  2279. arvif->vdev_type = WMI_VDEV_TYPE_STA;
  2280. if (vif->p2p)
  2281. arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
  2282. break;
  2283. case NL80211_IFTYPE_ADHOC:
  2284. arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
  2285. break;
  2286. case NL80211_IFTYPE_AP:
  2287. arvif->vdev_type = WMI_VDEV_TYPE_AP;
  2288. if (vif->p2p)
  2289. arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
  2290. break;
  2291. case NL80211_IFTYPE_MONITOR:
  2292. arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
  2293. break;
  2294. default:
  2295. WARN_ON(1);
  2296. break;
  2297. }
  2298. /* Some firmware revisions don't wait for beacon tx completion before
  2299. * sending another SWBA event. This could lead to hardware using old
  2300. * (freed) beacon data in some cases, e.g. tx credit starvation
  2301. * combined with missed TBTT. This is very very rare.
  2302. *
  2303. * On non-IOMMU-enabled hosts this could be a possible security issue
  2304. * because hw could beacon some random data on the air. On
  2305. * IOMMU-enabled hosts DMAR faults would occur in most cases and target
  2306. * device would crash.
  2307. *
  2308. * Since there are no beacon tx completions (implicit nor explicit)
  2309. * propagated to host the only workaround for this is to allocate a
  2310. * DMA-coherent buffer for a lifetime of a vif and use it for all
  2311. * beacon tx commands. Worst case for this approach is some beacons may
  2312. * become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
  2313. */
  2314. if (vif->type == NL80211_IFTYPE_ADHOC ||
  2315. vif->type == NL80211_IFTYPE_AP) {
  2316. arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
  2317. IEEE80211_MAX_FRAME_LEN,
  2318. &arvif->beacon_paddr,
  2319. GFP_ATOMIC);
  2320. if (!arvif->beacon_buf) {
  2321. ret = -ENOMEM;
  2322. ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
  2323. ret);
  2324. goto err;
  2325. }
  2326. }
  2327. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d bcnmode %s\n",
  2328. arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
  2329. arvif->beacon_buf ? "single-buf" : "per-skb");
  2330. ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
  2331. arvif->vdev_subtype, vif->addr);
  2332. if (ret) {
  2333. ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
  2334. arvif->vdev_id, ret);
  2335. goto err;
  2336. }
  2337. ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
  2338. list_add(&arvif->list, &ar->arvifs);
  2339. vdev_param = ar->wmi.vdev_param->def_keyid;
  2340. ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
  2341. arvif->def_wep_key_idx);
  2342. if (ret) {
  2343. ath10k_warn(ar, "failed to set vdev %i default key id: %d\n",
  2344. arvif->vdev_id, ret);
  2345. goto err_vdev_delete;
  2346. }
  2347. vdev_param = ar->wmi.vdev_param->tx_encap_type;
  2348. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  2349. ATH10K_HW_TXRX_NATIVE_WIFI);
  2350. /* 10.X firmware does not support this VDEV parameter. Do not warn */
  2351. if (ret && ret != -EOPNOTSUPP) {
  2352. ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
  2353. arvif->vdev_id, ret);
  2354. goto err_vdev_delete;
  2355. }
  2356. if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
  2357. ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
  2358. if (ret) {
  2359. ath10k_warn(ar, "failed to create vdev %i peer for AP: %d\n",
  2360. arvif->vdev_id, ret);
  2361. goto err_vdev_delete;
  2362. }
  2363. ret = ath10k_mac_set_kickout(arvif);
  2364. if (ret) {
  2365. ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
  2366. arvif->vdev_id, ret);
  2367. goto err_peer_delete;
  2368. }
  2369. }
  2370. if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
  2371. param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
  2372. value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
  2373. ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
  2374. param, value);
  2375. if (ret) {
  2376. ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
  2377. arvif->vdev_id, ret);
  2378. goto err_peer_delete;
  2379. }
  2380. param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
  2381. value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
  2382. ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
  2383. param, value);
  2384. if (ret) {
  2385. ath10k_warn(ar, "failed to set vdev %i TX wake thresh: %d\n",
  2386. arvif->vdev_id, ret);
  2387. goto err_peer_delete;
  2388. }
  2389. param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
  2390. value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
  2391. ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
  2392. param, value);
  2393. if (ret) {
  2394. ath10k_warn(ar, "failed to set vdev %i PSPOLL count: %d\n",
  2395. arvif->vdev_id, ret);
  2396. goto err_peer_delete;
  2397. }
  2398. }
  2399. ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
  2400. if (ret) {
  2401. ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
  2402. arvif->vdev_id, ret);
  2403. goto err_peer_delete;
  2404. }
  2405. ret = ath10k_mac_set_frag(arvif, ar->hw->wiphy->frag_threshold);
  2406. if (ret) {
  2407. ath10k_warn(ar, "failed to set frag threshold for vdev %d: %d\n",
  2408. arvif->vdev_id, ret);
  2409. goto err_peer_delete;
  2410. }
  2411. arvif->txpower = vif->bss_conf.txpower;
  2412. ret = ath10k_mac_txpower_recalc(ar);
  2413. if (ret) {
  2414. ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
  2415. goto err_peer_delete;
  2416. }
  2417. mutex_unlock(&ar->conf_mutex);
  2418. return 0;
  2419. err_peer_delete:
  2420. if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
  2421. ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);
  2422. err_vdev_delete:
  2423. ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
  2424. ar->free_vdev_map |= 1LL << arvif->vdev_id;
  2425. list_del(&arvif->list);
  2426. err:
  2427. if (arvif->beacon_buf) {
  2428. dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
  2429. arvif->beacon_buf, arvif->beacon_paddr);
  2430. arvif->beacon_buf = NULL;
  2431. }
  2432. mutex_unlock(&ar->conf_mutex);
  2433. return ret;
  2434. }
  2435. static void ath10k_remove_interface(struct ieee80211_hw *hw,
  2436. struct ieee80211_vif *vif)
  2437. {
  2438. struct ath10k *ar = hw->priv;
  2439. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2440. int ret;
  2441. mutex_lock(&ar->conf_mutex);
  2442. cancel_work_sync(&arvif->wep_key_work);
  2443. spin_lock_bh(&ar->data_lock);
  2444. ath10k_mac_vif_beacon_cleanup(arvif);
  2445. spin_unlock_bh(&ar->data_lock);
  2446. ret = ath10k_spectral_vif_stop(arvif);
  2447. if (ret)
  2448. ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
  2449. arvif->vdev_id, ret);
  2450. ar->free_vdev_map |= 1LL << arvif->vdev_id;
  2451. list_del(&arvif->list);
  2452. if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
  2453. ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
  2454. if (ret)
  2455. ath10k_warn(ar, "failed to remove peer for AP vdev %i: %d\n",
  2456. arvif->vdev_id, ret);
  2457. kfree(arvif->u.ap.noa_data);
  2458. }
  2459. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
  2460. arvif->vdev_id);
  2461. ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
  2462. if (ret)
  2463. ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
  2464. arvif->vdev_id, ret);
  2465. ath10k_peer_cleanup(ar, arvif->vdev_id);
  2466. mutex_unlock(&ar->conf_mutex);
  2467. }
  2468. /*
  2469. * FIXME: Has to be verified.
  2470. */
  2471. #define SUPPORTED_FILTERS \
  2472. (FIF_PROMISC_IN_BSS | \
  2473. FIF_ALLMULTI | \
  2474. FIF_CONTROL | \
  2475. FIF_PSPOLL | \
  2476. FIF_OTHER_BSS | \
  2477. FIF_BCN_PRBRESP_PROMISC | \
  2478. FIF_PROBE_REQ | \
  2479. FIF_FCSFAIL)
  2480. static void ath10k_configure_filter(struct ieee80211_hw *hw,
  2481. unsigned int changed_flags,
  2482. unsigned int *total_flags,
  2483. u64 multicast)
  2484. {
  2485. struct ath10k *ar = hw->priv;
  2486. int ret;
  2487. mutex_lock(&ar->conf_mutex);
  2488. changed_flags &= SUPPORTED_FILTERS;
  2489. *total_flags &= SUPPORTED_FILTERS;
  2490. ar->filter_flags = *total_flags;
  2491. ret = ath10k_monitor_recalc(ar);
  2492. if (ret)
  2493. ath10k_warn(ar, "failed to recalc montior: %d\n", ret);
  2494. mutex_unlock(&ar->conf_mutex);
  2495. }
  2496. static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
  2497. struct ieee80211_vif *vif,
  2498. struct ieee80211_bss_conf *info,
  2499. u32 changed)
  2500. {
  2501. struct ath10k *ar = hw->priv;
  2502. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2503. int ret = 0;
  2504. u32 vdev_param, pdev_param, slottime, preamble;
  2505. mutex_lock(&ar->conf_mutex);
  2506. if (changed & BSS_CHANGED_IBSS)
  2507. ath10k_control_ibss(arvif, info, vif->addr);
  2508. if (changed & BSS_CHANGED_BEACON_INT) {
  2509. arvif->beacon_interval = info->beacon_int;
  2510. vdev_param = ar->wmi.vdev_param->beacon_interval;
  2511. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  2512. arvif->beacon_interval);
  2513. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2514. "mac vdev %d beacon_interval %d\n",
  2515. arvif->vdev_id, arvif->beacon_interval);
  2516. if (ret)
  2517. ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
  2518. arvif->vdev_id, ret);
  2519. }
  2520. if (changed & BSS_CHANGED_BEACON) {
  2521. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2522. "vdev %d set beacon tx mode to staggered\n",
  2523. arvif->vdev_id);
  2524. pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
  2525. ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
  2526. WMI_BEACON_STAGGERED_MODE);
  2527. if (ret)
  2528. ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
  2529. arvif->vdev_id, ret);
  2530. }
  2531. if (changed & BSS_CHANGED_BEACON_INFO) {
  2532. arvif->dtim_period = info->dtim_period;
  2533. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2534. "mac vdev %d dtim_period %d\n",
  2535. arvif->vdev_id, arvif->dtim_period);
  2536. vdev_param = ar->wmi.vdev_param->dtim_period;
  2537. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  2538. arvif->dtim_period);
  2539. if (ret)
  2540. ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
  2541. arvif->vdev_id, ret);
  2542. }
  2543. if (changed & BSS_CHANGED_SSID &&
  2544. vif->type == NL80211_IFTYPE_AP) {
  2545. arvif->u.ap.ssid_len = info->ssid_len;
  2546. if (info->ssid_len)
  2547. memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
  2548. arvif->u.ap.hidden_ssid = info->hidden_ssid;
  2549. }
  2550. if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
  2551. ether_addr_copy(arvif->bssid, info->bssid);
  2552. if (changed & BSS_CHANGED_BEACON_ENABLED)
  2553. ath10k_control_beaconing(arvif, info);
  2554. if (changed & BSS_CHANGED_ERP_CTS_PROT) {
  2555. arvif->use_cts_prot = info->use_cts_prot;
  2556. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
  2557. arvif->vdev_id, info->use_cts_prot);
  2558. ret = ath10k_recalc_rtscts_prot(arvif);
  2559. if (ret)
  2560. ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
  2561. arvif->vdev_id, ret);
  2562. }
  2563. if (changed & BSS_CHANGED_ERP_SLOT) {
  2564. if (info->use_short_slot)
  2565. slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
  2566. else
  2567. slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
  2568. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
  2569. arvif->vdev_id, slottime);
  2570. vdev_param = ar->wmi.vdev_param->slot_time;
  2571. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  2572. slottime);
  2573. if (ret)
  2574. ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
  2575. arvif->vdev_id, ret);
  2576. }
  2577. if (changed & BSS_CHANGED_ERP_PREAMBLE) {
  2578. if (info->use_short_preamble)
  2579. preamble = WMI_VDEV_PREAMBLE_SHORT;
  2580. else
  2581. preamble = WMI_VDEV_PREAMBLE_LONG;
  2582. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2583. "mac vdev %d preamble %dn",
  2584. arvif->vdev_id, preamble);
  2585. vdev_param = ar->wmi.vdev_param->preamble;
  2586. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  2587. preamble);
  2588. if (ret)
  2589. ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
  2590. arvif->vdev_id, ret);
  2591. }
  2592. if (changed & BSS_CHANGED_ASSOC) {
  2593. if (info->assoc) {
  2594. /* Workaround: Make sure monitor vdev is not running
  2595. * when associating to prevent some firmware revisions
  2596. * (e.g. 10.1 and 10.2) from crashing.
  2597. */
  2598. if (ar->monitor_started)
  2599. ath10k_monitor_stop(ar);
  2600. ath10k_bss_assoc(hw, vif, info);
  2601. ath10k_monitor_recalc(ar);
  2602. } else {
  2603. ath10k_bss_disassoc(hw, vif);
  2604. }
  2605. }
  2606. if (changed & BSS_CHANGED_TXPOWER) {
  2607. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev_id %i txpower %d\n",
  2608. arvif->vdev_id, info->txpower);
  2609. arvif->txpower = info->txpower;
  2610. ret = ath10k_mac_txpower_recalc(ar);
  2611. if (ret)
  2612. ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
  2613. }
  2614. mutex_unlock(&ar->conf_mutex);
  2615. }
  2616. static int ath10k_hw_scan(struct ieee80211_hw *hw,
  2617. struct ieee80211_vif *vif,
  2618. struct ieee80211_scan_request *hw_req)
  2619. {
  2620. struct ath10k *ar = hw->priv;
  2621. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2622. struct cfg80211_scan_request *req = &hw_req->req;
  2623. struct wmi_start_scan_arg arg;
  2624. int ret = 0;
  2625. int i;
  2626. mutex_lock(&ar->conf_mutex);
  2627. spin_lock_bh(&ar->data_lock);
  2628. switch (ar->scan.state) {
  2629. case ATH10K_SCAN_IDLE:
  2630. reinit_completion(&ar->scan.started);
  2631. reinit_completion(&ar->scan.completed);
  2632. ar->scan.state = ATH10K_SCAN_STARTING;
  2633. ar->scan.is_roc = false;
  2634. ar->scan.vdev_id = arvif->vdev_id;
  2635. ret = 0;
  2636. break;
  2637. case ATH10K_SCAN_STARTING:
  2638. case ATH10K_SCAN_RUNNING:
  2639. case ATH10K_SCAN_ABORTING:
  2640. ret = -EBUSY;
  2641. break;
  2642. }
  2643. spin_unlock_bh(&ar->data_lock);
  2644. if (ret)
  2645. goto exit;
  2646. memset(&arg, 0, sizeof(arg));
  2647. ath10k_wmi_start_scan_init(ar, &arg);
  2648. arg.vdev_id = arvif->vdev_id;
  2649. arg.scan_id = ATH10K_SCAN_ID;
  2650. if (!req->no_cck)
  2651. arg.scan_ctrl_flags |= WMI_SCAN_ADD_CCK_RATES;
  2652. if (req->ie_len) {
  2653. arg.ie_len = req->ie_len;
  2654. memcpy(arg.ie, req->ie, arg.ie_len);
  2655. }
  2656. if (req->n_ssids) {
  2657. arg.n_ssids = req->n_ssids;
  2658. for (i = 0; i < arg.n_ssids; i++) {
  2659. arg.ssids[i].len = req->ssids[i].ssid_len;
  2660. arg.ssids[i].ssid = req->ssids[i].ssid;
  2661. }
  2662. } else {
  2663. arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
  2664. }
  2665. if (req->n_channels) {
  2666. arg.n_channels = req->n_channels;
  2667. for (i = 0; i < arg.n_channels; i++)
  2668. arg.channels[i] = req->channels[i]->center_freq;
  2669. }
  2670. ret = ath10k_start_scan(ar, &arg);
  2671. if (ret) {
  2672. ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
  2673. spin_lock_bh(&ar->data_lock);
  2674. ar->scan.state = ATH10K_SCAN_IDLE;
  2675. spin_unlock_bh(&ar->data_lock);
  2676. }
  2677. exit:
  2678. mutex_unlock(&ar->conf_mutex);
  2679. return ret;
  2680. }
  2681. static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
  2682. struct ieee80211_vif *vif)
  2683. {
  2684. struct ath10k *ar = hw->priv;
  2685. mutex_lock(&ar->conf_mutex);
  2686. cancel_delayed_work_sync(&ar->scan.timeout);
  2687. ath10k_scan_abort(ar);
  2688. mutex_unlock(&ar->conf_mutex);
  2689. }
  2690. static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
  2691. struct ath10k_vif *arvif,
  2692. enum set_key_cmd cmd,
  2693. struct ieee80211_key_conf *key)
  2694. {
  2695. u32 vdev_param = arvif->ar->wmi.vdev_param->def_keyid;
  2696. int ret;
  2697. /* 10.1 firmware branch requires default key index to be set to group
  2698. * key index after installing it. Otherwise FW/HW Txes corrupted
  2699. * frames with multi-vif APs. This is not required for main firmware
  2700. * branch (e.g. 636).
  2701. *
  2702. * FIXME: This has been tested only in AP. It remains unknown if this
  2703. * is required for multi-vif STA interfaces on 10.1 */
  2704. if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
  2705. return;
  2706. if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
  2707. return;
  2708. if (key->cipher == WLAN_CIPHER_SUITE_WEP104)
  2709. return;
  2710. if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
  2711. return;
  2712. if (cmd != SET_KEY)
  2713. return;
  2714. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  2715. key->keyidx);
  2716. if (ret)
  2717. ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
  2718. arvif->vdev_id, ret);
  2719. }
  2720. static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
  2721. struct ieee80211_vif *vif, struct ieee80211_sta *sta,
  2722. struct ieee80211_key_conf *key)
  2723. {
  2724. struct ath10k *ar = hw->priv;
  2725. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2726. struct ath10k_peer *peer;
  2727. const u8 *peer_addr;
  2728. bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
  2729. key->cipher == WLAN_CIPHER_SUITE_WEP104;
  2730. int ret = 0;
  2731. if (key->keyidx > WMI_MAX_KEY_INDEX)
  2732. return -ENOSPC;
  2733. mutex_lock(&ar->conf_mutex);
  2734. if (sta)
  2735. peer_addr = sta->addr;
  2736. else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
  2737. peer_addr = vif->bss_conf.bssid;
  2738. else
  2739. peer_addr = vif->addr;
  2740. key->hw_key_idx = key->keyidx;
  2741. /* the peer should not disappear in mid-way (unless FW goes awry) since
  2742. * we already hold conf_mutex. we just make sure its there now. */
  2743. spin_lock_bh(&ar->data_lock);
  2744. peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
  2745. spin_unlock_bh(&ar->data_lock);
  2746. if (!peer) {
  2747. if (cmd == SET_KEY) {
  2748. ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
  2749. peer_addr);
  2750. ret = -EOPNOTSUPP;
  2751. goto exit;
  2752. } else {
  2753. /* if the peer doesn't exist there is no key to disable
  2754. * anymore */
  2755. goto exit;
  2756. }
  2757. }
  2758. if (is_wep) {
  2759. if (cmd == SET_KEY)
  2760. arvif->wep_keys[key->keyidx] = key;
  2761. else
  2762. arvif->wep_keys[key->keyidx] = NULL;
  2763. if (cmd == DISABLE_KEY)
  2764. ath10k_clear_vdev_key(arvif, key);
  2765. }
  2766. ret = ath10k_install_key(arvif, key, cmd, peer_addr);
  2767. if (ret) {
  2768. ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
  2769. arvif->vdev_id, peer_addr, ret);
  2770. goto exit;
  2771. }
  2772. ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);
  2773. spin_lock_bh(&ar->data_lock);
  2774. peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
  2775. if (peer && cmd == SET_KEY)
  2776. peer->keys[key->keyidx] = key;
  2777. else if (peer && cmd == DISABLE_KEY)
  2778. peer->keys[key->keyidx] = NULL;
  2779. else if (peer == NULL)
  2780. /* impossible unless FW goes crazy */
  2781. ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
  2782. spin_unlock_bh(&ar->data_lock);
  2783. exit:
  2784. mutex_unlock(&ar->conf_mutex);
  2785. return ret;
  2786. }
  2787. static void ath10k_sta_rc_update_wk(struct work_struct *wk)
  2788. {
  2789. struct ath10k *ar;
  2790. struct ath10k_vif *arvif;
  2791. struct ath10k_sta *arsta;
  2792. struct ieee80211_sta *sta;
  2793. u32 changed, bw, nss, smps;
  2794. int err;
  2795. arsta = container_of(wk, struct ath10k_sta, update_wk);
  2796. sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
  2797. arvif = arsta->arvif;
  2798. ar = arvif->ar;
  2799. spin_lock_bh(&ar->data_lock);
  2800. changed = arsta->changed;
  2801. arsta->changed = 0;
  2802. bw = arsta->bw;
  2803. nss = arsta->nss;
  2804. smps = arsta->smps;
  2805. spin_unlock_bh(&ar->data_lock);
  2806. mutex_lock(&ar->conf_mutex);
  2807. if (changed & IEEE80211_RC_BW_CHANGED) {
  2808. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
  2809. sta->addr, bw);
  2810. err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
  2811. WMI_PEER_CHAN_WIDTH, bw);
  2812. if (err)
  2813. ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
  2814. sta->addr, bw, err);
  2815. }
  2816. if (changed & IEEE80211_RC_NSS_CHANGED) {
  2817. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
  2818. sta->addr, nss);
  2819. err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
  2820. WMI_PEER_NSS, nss);
  2821. if (err)
  2822. ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
  2823. sta->addr, nss, err);
  2824. }
  2825. if (changed & IEEE80211_RC_SMPS_CHANGED) {
  2826. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
  2827. sta->addr, smps);
  2828. err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
  2829. WMI_PEER_SMPS_STATE, smps);
  2830. if (err)
  2831. ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
  2832. sta->addr, smps, err);
  2833. }
  2834. if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
  2835. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM supp rates\n",
  2836. sta->addr);
  2837. err = ath10k_station_assoc(ar, arvif->vif, sta, true);
  2838. if (err)
  2839. ath10k_warn(ar, "failed to reassociate station: %pM\n",
  2840. sta->addr);
  2841. }
  2842. mutex_unlock(&ar->conf_mutex);
  2843. }
  2844. static int ath10k_sta_state(struct ieee80211_hw *hw,
  2845. struct ieee80211_vif *vif,
  2846. struct ieee80211_sta *sta,
  2847. enum ieee80211_sta_state old_state,
  2848. enum ieee80211_sta_state new_state)
  2849. {
  2850. struct ath10k *ar = hw->priv;
  2851. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2852. struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
  2853. int max_num_peers;
  2854. int ret = 0;
  2855. if (old_state == IEEE80211_STA_NOTEXIST &&
  2856. new_state == IEEE80211_STA_NONE) {
  2857. memset(arsta, 0, sizeof(*arsta));
  2858. arsta->arvif = arvif;
  2859. INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
  2860. }
  2861. /* cancel must be done outside the mutex to avoid deadlock */
  2862. if ((old_state == IEEE80211_STA_NONE &&
  2863. new_state == IEEE80211_STA_NOTEXIST))
  2864. cancel_work_sync(&arsta->update_wk);
  2865. mutex_lock(&ar->conf_mutex);
  2866. if (old_state == IEEE80211_STA_NOTEXIST &&
  2867. new_state == IEEE80211_STA_NONE) {
  2868. /*
  2869. * New station addition.
  2870. */
  2871. if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
  2872. max_num_peers = TARGET_10X_NUM_PEERS_MAX - 1;
  2873. else
  2874. max_num_peers = TARGET_NUM_PEERS;
  2875. if (ar->num_peers >= max_num_peers) {
  2876. ath10k_warn(ar, "number of peers exceeded: peers number %d (max peers %d)\n",
  2877. ar->num_peers, max_num_peers);
  2878. ret = -ENOBUFS;
  2879. goto exit;
  2880. }
  2881. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2882. "mac vdev %d peer create %pM (new sta) num_peers %d\n",
  2883. arvif->vdev_id, sta->addr, ar->num_peers);
  2884. ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
  2885. if (ret)
  2886. ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
  2887. sta->addr, arvif->vdev_id, ret);
  2888. if (vif->type == NL80211_IFTYPE_STATION) {
  2889. WARN_ON(arvif->is_started);
  2890. ret = ath10k_vdev_start(arvif);
  2891. if (ret) {
  2892. ath10k_warn(ar, "failed to start vdev %i: %d\n",
  2893. arvif->vdev_id, ret);
  2894. WARN_ON(ath10k_peer_delete(ar, arvif->vdev_id,
  2895. sta->addr));
  2896. goto exit;
  2897. }
  2898. arvif->is_started = true;
  2899. }
  2900. } else if ((old_state == IEEE80211_STA_NONE &&
  2901. new_state == IEEE80211_STA_NOTEXIST)) {
  2902. /*
  2903. * Existing station deletion.
  2904. */
  2905. ath10k_dbg(ar, ATH10K_DBG_MAC,
  2906. "mac vdev %d peer delete %pM (sta gone)\n",
  2907. arvif->vdev_id, sta->addr);
  2908. if (vif->type == NL80211_IFTYPE_STATION) {
  2909. WARN_ON(!arvif->is_started);
  2910. ret = ath10k_vdev_stop(arvif);
  2911. if (ret)
  2912. ath10k_warn(ar, "failed to stop vdev %i: %d\n",
  2913. arvif->vdev_id, ret);
  2914. arvif->is_started = false;
  2915. }
  2916. ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
  2917. if (ret)
  2918. ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
  2919. sta->addr, arvif->vdev_id, ret);
  2920. } else if (old_state == IEEE80211_STA_AUTH &&
  2921. new_state == IEEE80211_STA_ASSOC &&
  2922. (vif->type == NL80211_IFTYPE_AP ||
  2923. vif->type == NL80211_IFTYPE_ADHOC)) {
  2924. /*
  2925. * New association.
  2926. */
  2927. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM associated\n",
  2928. sta->addr);
  2929. ret = ath10k_station_assoc(ar, vif, sta, false);
  2930. if (ret)
  2931. ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
  2932. sta->addr, arvif->vdev_id, ret);
  2933. } else if (old_state == IEEE80211_STA_ASSOC &&
  2934. new_state == IEEE80211_STA_AUTH &&
  2935. (vif->type == NL80211_IFTYPE_AP ||
  2936. vif->type == NL80211_IFTYPE_ADHOC)) {
  2937. /*
  2938. * Disassociation.
  2939. */
  2940. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
  2941. sta->addr);
  2942. ret = ath10k_station_disassoc(ar, vif, sta);
  2943. if (ret)
  2944. ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
  2945. sta->addr, arvif->vdev_id, ret);
  2946. }
  2947. exit:
  2948. mutex_unlock(&ar->conf_mutex);
  2949. return ret;
  2950. }
  2951. static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
  2952. u16 ac, bool enable)
  2953. {
  2954. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  2955. u32 value = 0;
  2956. int ret = 0;
  2957. lockdep_assert_held(&ar->conf_mutex);
  2958. if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
  2959. return 0;
  2960. switch (ac) {
  2961. case IEEE80211_AC_VO:
  2962. value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
  2963. WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
  2964. break;
  2965. case IEEE80211_AC_VI:
  2966. value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
  2967. WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
  2968. break;
  2969. case IEEE80211_AC_BE:
  2970. value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
  2971. WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
  2972. break;
  2973. case IEEE80211_AC_BK:
  2974. value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
  2975. WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
  2976. break;
  2977. }
  2978. if (enable)
  2979. arvif->u.sta.uapsd |= value;
  2980. else
  2981. arvif->u.sta.uapsd &= ~value;
  2982. ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
  2983. WMI_STA_PS_PARAM_UAPSD,
  2984. arvif->u.sta.uapsd);
  2985. if (ret) {
  2986. ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
  2987. goto exit;
  2988. }
  2989. if (arvif->u.sta.uapsd)
  2990. value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
  2991. else
  2992. value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
  2993. ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
  2994. WMI_STA_PS_PARAM_RX_WAKE_POLICY,
  2995. value);
  2996. if (ret)
  2997. ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
  2998. exit:
  2999. return ret;
  3000. }
  3001. static int ath10k_conf_tx(struct ieee80211_hw *hw,
  3002. struct ieee80211_vif *vif, u16 ac,
  3003. const struct ieee80211_tx_queue_params *params)
  3004. {
  3005. struct ath10k *ar = hw->priv;
  3006. struct wmi_wmm_params_arg *p = NULL;
  3007. int ret;
  3008. mutex_lock(&ar->conf_mutex);
  3009. switch (ac) {
  3010. case IEEE80211_AC_VO:
  3011. p = &ar->wmm_params.ac_vo;
  3012. break;
  3013. case IEEE80211_AC_VI:
  3014. p = &ar->wmm_params.ac_vi;
  3015. break;
  3016. case IEEE80211_AC_BE:
  3017. p = &ar->wmm_params.ac_be;
  3018. break;
  3019. case IEEE80211_AC_BK:
  3020. p = &ar->wmm_params.ac_bk;
  3021. break;
  3022. }
  3023. if (WARN_ON(!p)) {
  3024. ret = -EINVAL;
  3025. goto exit;
  3026. }
  3027. p->cwmin = params->cw_min;
  3028. p->cwmax = params->cw_max;
  3029. p->aifs = params->aifs;
  3030. /*
  3031. * The channel time duration programmed in the HW is in absolute
  3032. * microseconds, while mac80211 gives the txop in units of
  3033. * 32 microseconds.
  3034. */
  3035. p->txop = params->txop * 32;
  3036. /* FIXME: FW accepts wmm params per hw, not per vif */
  3037. ret = ath10k_wmi_pdev_set_wmm_params(ar, &ar->wmm_params);
  3038. if (ret) {
  3039. ath10k_warn(ar, "failed to set wmm params: %d\n", ret);
  3040. goto exit;
  3041. }
  3042. ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
  3043. if (ret)
  3044. ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
  3045. exit:
  3046. mutex_unlock(&ar->conf_mutex);
  3047. return ret;
  3048. }
  3049. #define ATH10K_ROC_TIMEOUT_HZ (2*HZ)
  3050. static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
  3051. struct ieee80211_vif *vif,
  3052. struct ieee80211_channel *chan,
  3053. int duration,
  3054. enum ieee80211_roc_type type)
  3055. {
  3056. struct ath10k *ar = hw->priv;
  3057. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  3058. struct wmi_start_scan_arg arg;
  3059. int ret = 0;
  3060. mutex_lock(&ar->conf_mutex);
  3061. spin_lock_bh(&ar->data_lock);
  3062. switch (ar->scan.state) {
  3063. case ATH10K_SCAN_IDLE:
  3064. reinit_completion(&ar->scan.started);
  3065. reinit_completion(&ar->scan.completed);
  3066. reinit_completion(&ar->scan.on_channel);
  3067. ar->scan.state = ATH10K_SCAN_STARTING;
  3068. ar->scan.is_roc = true;
  3069. ar->scan.vdev_id = arvif->vdev_id;
  3070. ar->scan.roc_freq = chan->center_freq;
  3071. ret = 0;
  3072. break;
  3073. case ATH10K_SCAN_STARTING:
  3074. case ATH10K_SCAN_RUNNING:
  3075. case ATH10K_SCAN_ABORTING:
  3076. ret = -EBUSY;
  3077. break;
  3078. }
  3079. spin_unlock_bh(&ar->data_lock);
  3080. if (ret)
  3081. goto exit;
  3082. memset(&arg, 0, sizeof(arg));
  3083. ath10k_wmi_start_scan_init(ar, &arg);
  3084. arg.vdev_id = arvif->vdev_id;
  3085. arg.scan_id = ATH10K_SCAN_ID;
  3086. arg.n_channels = 1;
  3087. arg.channels[0] = chan->center_freq;
  3088. arg.dwell_time_active = duration;
  3089. arg.dwell_time_passive = duration;
  3090. arg.max_scan_time = 2 * duration;
  3091. arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
  3092. arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
  3093. ret = ath10k_start_scan(ar, &arg);
  3094. if (ret) {
  3095. ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
  3096. spin_lock_bh(&ar->data_lock);
  3097. ar->scan.state = ATH10K_SCAN_IDLE;
  3098. spin_unlock_bh(&ar->data_lock);
  3099. goto exit;
  3100. }
  3101. ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
  3102. if (ret == 0) {
  3103. ath10k_warn(ar, "failed to switch to channel for roc scan\n");
  3104. ret = ath10k_scan_stop(ar);
  3105. if (ret)
  3106. ath10k_warn(ar, "failed to stop scan: %d\n", ret);
  3107. ret = -ETIMEDOUT;
  3108. goto exit;
  3109. }
  3110. ret = 0;
  3111. exit:
  3112. mutex_unlock(&ar->conf_mutex);
  3113. return ret;
  3114. }
  3115. static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
  3116. {
  3117. struct ath10k *ar = hw->priv;
  3118. mutex_lock(&ar->conf_mutex);
  3119. cancel_delayed_work_sync(&ar->scan.timeout);
  3120. ath10k_scan_abort(ar);
  3121. mutex_unlock(&ar->conf_mutex);
  3122. return 0;
  3123. }
  3124. /*
  3125. * Both RTS and Fragmentation threshold are interface-specific
  3126. * in ath10k, but device-specific in mac80211.
  3127. */
  3128. static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
  3129. {
  3130. struct ath10k *ar = hw->priv;
  3131. struct ath10k_vif *arvif;
  3132. int ret = 0;
  3133. mutex_lock(&ar->conf_mutex);
  3134. list_for_each_entry(arvif, &ar->arvifs, list) {
  3135. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
  3136. arvif->vdev_id, value);
  3137. ret = ath10k_mac_set_rts(arvif, value);
  3138. if (ret) {
  3139. ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
  3140. arvif->vdev_id, ret);
  3141. break;
  3142. }
  3143. }
  3144. mutex_unlock(&ar->conf_mutex);
  3145. return ret;
  3146. }
  3147. static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
  3148. {
  3149. struct ath10k *ar = hw->priv;
  3150. struct ath10k_vif *arvif;
  3151. int ret = 0;
  3152. mutex_lock(&ar->conf_mutex);
  3153. list_for_each_entry(arvif, &ar->arvifs, list) {
  3154. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d fragmentation threshold %d\n",
  3155. arvif->vdev_id, value);
  3156. ret = ath10k_mac_set_rts(arvif, value);
  3157. if (ret) {
  3158. ath10k_warn(ar, "failed to set fragmentation threshold for vdev %d: %d\n",
  3159. arvif->vdev_id, ret);
  3160. break;
  3161. }
  3162. }
  3163. mutex_unlock(&ar->conf_mutex);
  3164. return ret;
  3165. }
  3166. static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
  3167. u32 queues, bool drop)
  3168. {
  3169. struct ath10k *ar = hw->priv;
  3170. bool skip;
  3171. int ret;
  3172. /* mac80211 doesn't care if we really xmit queued frames or not
  3173. * we'll collect those frames either way if we stop/delete vdevs */
  3174. if (drop)
  3175. return;
  3176. mutex_lock(&ar->conf_mutex);
  3177. if (ar->state == ATH10K_STATE_WEDGED)
  3178. goto skip;
  3179. ret = wait_event_timeout(ar->htt.empty_tx_wq, ({
  3180. bool empty;
  3181. spin_lock_bh(&ar->htt.tx_lock);
  3182. empty = (ar->htt.num_pending_tx == 0);
  3183. spin_unlock_bh(&ar->htt.tx_lock);
  3184. skip = (ar->state == ATH10K_STATE_WEDGED);
  3185. (empty || skip);
  3186. }), ATH10K_FLUSH_TIMEOUT_HZ);
  3187. if (ret <= 0 || skip)
  3188. ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %i\n",
  3189. skip, ar->state, ret);
  3190. skip:
  3191. mutex_unlock(&ar->conf_mutex);
  3192. }
  3193. /* TODO: Implement this function properly
  3194. * For now it is needed to reply to Probe Requests in IBSS mode.
  3195. * Propably we need this information from FW.
  3196. */
  3197. static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
  3198. {
  3199. return 1;
  3200. }
  3201. #ifdef CONFIG_PM
  3202. static int ath10k_suspend(struct ieee80211_hw *hw,
  3203. struct cfg80211_wowlan *wowlan)
  3204. {
  3205. struct ath10k *ar = hw->priv;
  3206. int ret;
  3207. mutex_lock(&ar->conf_mutex);
  3208. ret = ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND);
  3209. if (ret) {
  3210. if (ret == -ETIMEDOUT)
  3211. goto resume;
  3212. ret = 1;
  3213. goto exit;
  3214. }
  3215. ret = ath10k_hif_suspend(ar);
  3216. if (ret) {
  3217. ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
  3218. goto resume;
  3219. }
  3220. ret = 0;
  3221. goto exit;
  3222. resume:
  3223. ret = ath10k_wmi_pdev_resume_target(ar);
  3224. if (ret)
  3225. ath10k_warn(ar, "failed to resume target: %d\n", ret);
  3226. ret = 1;
  3227. exit:
  3228. mutex_unlock(&ar->conf_mutex);
  3229. return ret;
  3230. }
  3231. static int ath10k_resume(struct ieee80211_hw *hw)
  3232. {
  3233. struct ath10k *ar = hw->priv;
  3234. int ret;
  3235. mutex_lock(&ar->conf_mutex);
  3236. ret = ath10k_hif_resume(ar);
  3237. if (ret) {
  3238. ath10k_warn(ar, "failed to resume hif: %d\n", ret);
  3239. ret = 1;
  3240. goto exit;
  3241. }
  3242. ret = ath10k_wmi_pdev_resume_target(ar);
  3243. if (ret) {
  3244. ath10k_warn(ar, "failed to resume target: %d\n", ret);
  3245. ret = 1;
  3246. goto exit;
  3247. }
  3248. ret = 0;
  3249. exit:
  3250. mutex_unlock(&ar->conf_mutex);
  3251. return ret;
  3252. }
  3253. #endif
  3254. static void ath10k_restart_complete(struct ieee80211_hw *hw)
  3255. {
  3256. struct ath10k *ar = hw->priv;
  3257. mutex_lock(&ar->conf_mutex);
  3258. /* If device failed to restart it will be in a different state, e.g.
  3259. * ATH10K_STATE_WEDGED */
  3260. if (ar->state == ATH10K_STATE_RESTARTED) {
  3261. ath10k_info(ar, "device successfully recovered\n");
  3262. ar->state = ATH10K_STATE_ON;
  3263. }
  3264. mutex_unlock(&ar->conf_mutex);
  3265. }
  3266. static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
  3267. struct survey_info *survey)
  3268. {
  3269. struct ath10k *ar = hw->priv;
  3270. struct ieee80211_supported_band *sband;
  3271. struct survey_info *ar_survey = &ar->survey[idx];
  3272. int ret = 0;
  3273. mutex_lock(&ar->conf_mutex);
  3274. sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
  3275. if (sband && idx >= sband->n_channels) {
  3276. idx -= sband->n_channels;
  3277. sband = NULL;
  3278. }
  3279. if (!sband)
  3280. sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
  3281. if (!sband || idx >= sband->n_channels) {
  3282. ret = -ENOENT;
  3283. goto exit;
  3284. }
  3285. spin_lock_bh(&ar->data_lock);
  3286. memcpy(survey, ar_survey, sizeof(*survey));
  3287. spin_unlock_bh(&ar->data_lock);
  3288. survey->channel = &sband->channels[idx];
  3289. exit:
  3290. mutex_unlock(&ar->conf_mutex);
  3291. return ret;
  3292. }
  3293. /* Helper table for legacy fixed_rate/bitrate_mask */
  3294. static const u8 cck_ofdm_rate[] = {
  3295. /* CCK */
  3296. 3, /* 1Mbps */
  3297. 2, /* 2Mbps */
  3298. 1, /* 5.5Mbps */
  3299. 0, /* 11Mbps */
  3300. /* OFDM */
  3301. 3, /* 6Mbps */
  3302. 7, /* 9Mbps */
  3303. 2, /* 12Mbps */
  3304. 6, /* 18Mbps */
  3305. 1, /* 24Mbps */
  3306. 5, /* 36Mbps */
  3307. 0, /* 48Mbps */
  3308. 4, /* 54Mbps */
  3309. };
  3310. /* Check if only one bit set */
  3311. static int ath10k_check_single_mask(u32 mask)
  3312. {
  3313. int bit;
  3314. bit = ffs(mask);
  3315. if (!bit)
  3316. return 0;
  3317. mask &= ~BIT(bit - 1);
  3318. if (mask)
  3319. return 2;
  3320. return 1;
  3321. }
  3322. static bool
  3323. ath10k_default_bitrate_mask(struct ath10k *ar,
  3324. enum ieee80211_band band,
  3325. const struct cfg80211_bitrate_mask *mask)
  3326. {
  3327. u32 legacy = 0x00ff;
  3328. u8 ht = 0xff, i;
  3329. u16 vht = 0x3ff;
  3330. switch (band) {
  3331. case IEEE80211_BAND_2GHZ:
  3332. legacy = 0x00fff;
  3333. vht = 0;
  3334. break;
  3335. case IEEE80211_BAND_5GHZ:
  3336. break;
  3337. default:
  3338. return false;
  3339. }
  3340. if (mask->control[band].legacy != legacy)
  3341. return false;
  3342. for (i = 0; i < ar->num_rf_chains; i++)
  3343. if (mask->control[band].ht_mcs[i] != ht)
  3344. return false;
  3345. for (i = 0; i < ar->num_rf_chains; i++)
  3346. if (mask->control[band].vht_mcs[i] != vht)
  3347. return false;
  3348. return true;
  3349. }
  3350. static bool
  3351. ath10k_bitrate_mask_nss(const struct cfg80211_bitrate_mask *mask,
  3352. enum ieee80211_band band,
  3353. u8 *fixed_nss)
  3354. {
  3355. int ht_nss = 0, vht_nss = 0, i;
  3356. /* check legacy */
  3357. if (ath10k_check_single_mask(mask->control[band].legacy))
  3358. return false;
  3359. /* check HT */
  3360. for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
  3361. if (mask->control[band].ht_mcs[i] == 0xff)
  3362. continue;
  3363. else if (mask->control[band].ht_mcs[i] == 0x00)
  3364. break;
  3365. return false;
  3366. }
  3367. ht_nss = i;
  3368. /* check VHT */
  3369. for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
  3370. if (mask->control[band].vht_mcs[i] == 0x03ff)
  3371. continue;
  3372. else if (mask->control[band].vht_mcs[i] == 0x0000)
  3373. break;
  3374. return false;
  3375. }
  3376. vht_nss = i;
  3377. if (ht_nss > 0 && vht_nss > 0)
  3378. return false;
  3379. if (ht_nss)
  3380. *fixed_nss = ht_nss;
  3381. else if (vht_nss)
  3382. *fixed_nss = vht_nss;
  3383. else
  3384. return false;
  3385. return true;
  3386. }
  3387. static bool
  3388. ath10k_bitrate_mask_correct(const struct cfg80211_bitrate_mask *mask,
  3389. enum ieee80211_band band,
  3390. enum wmi_rate_preamble *preamble)
  3391. {
  3392. int legacy = 0, ht = 0, vht = 0, i;
  3393. *preamble = WMI_RATE_PREAMBLE_OFDM;
  3394. /* check legacy */
  3395. legacy = ath10k_check_single_mask(mask->control[band].legacy);
  3396. if (legacy > 1)
  3397. return false;
  3398. /* check HT */
  3399. for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
  3400. ht += ath10k_check_single_mask(mask->control[band].ht_mcs[i]);
  3401. if (ht > 1)
  3402. return false;
  3403. /* check VHT */
  3404. for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
  3405. vht += ath10k_check_single_mask(mask->control[band].vht_mcs[i]);
  3406. if (vht > 1)
  3407. return false;
  3408. /* Currently we support only one fixed_rate */
  3409. if ((legacy + ht + vht) != 1)
  3410. return false;
  3411. if (ht)
  3412. *preamble = WMI_RATE_PREAMBLE_HT;
  3413. else if (vht)
  3414. *preamble = WMI_RATE_PREAMBLE_VHT;
  3415. return true;
  3416. }
  3417. static bool
  3418. ath10k_bitrate_mask_rate(struct ath10k *ar,
  3419. const struct cfg80211_bitrate_mask *mask,
  3420. enum ieee80211_band band,
  3421. u8 *fixed_rate,
  3422. u8 *fixed_nss)
  3423. {
  3424. u8 rate = 0, pream = 0, nss = 0, i;
  3425. enum wmi_rate_preamble preamble;
  3426. /* Check if single rate correct */
  3427. if (!ath10k_bitrate_mask_correct(mask, band, &preamble))
  3428. return false;
  3429. pream = preamble;
  3430. switch (preamble) {
  3431. case WMI_RATE_PREAMBLE_CCK:
  3432. case WMI_RATE_PREAMBLE_OFDM:
  3433. i = ffs(mask->control[band].legacy) - 1;
  3434. if (band == IEEE80211_BAND_2GHZ && i < 4)
  3435. pream = WMI_RATE_PREAMBLE_CCK;
  3436. if (band == IEEE80211_BAND_5GHZ)
  3437. i += 4;
  3438. if (i >= ARRAY_SIZE(cck_ofdm_rate))
  3439. return false;
  3440. rate = cck_ofdm_rate[i];
  3441. break;
  3442. case WMI_RATE_PREAMBLE_HT:
  3443. for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
  3444. if (mask->control[band].ht_mcs[i])
  3445. break;
  3446. if (i == IEEE80211_HT_MCS_MASK_LEN)
  3447. return false;
  3448. rate = ffs(mask->control[band].ht_mcs[i]) - 1;
  3449. nss = i;
  3450. break;
  3451. case WMI_RATE_PREAMBLE_VHT:
  3452. for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
  3453. if (mask->control[band].vht_mcs[i])
  3454. break;
  3455. if (i == NL80211_VHT_NSS_MAX)
  3456. return false;
  3457. rate = ffs(mask->control[band].vht_mcs[i]) - 1;
  3458. nss = i;
  3459. break;
  3460. }
  3461. *fixed_nss = nss + 1;
  3462. nss <<= 4;
  3463. pream <<= 6;
  3464. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac fixed rate pream 0x%02x nss 0x%02x rate 0x%02x\n",
  3465. pream, nss, rate);
  3466. *fixed_rate = pream | nss | rate;
  3467. return true;
  3468. }
  3469. static bool ath10k_get_fixed_rate_nss(struct ath10k *ar,
  3470. const struct cfg80211_bitrate_mask *mask,
  3471. enum ieee80211_band band,
  3472. u8 *fixed_rate,
  3473. u8 *fixed_nss)
  3474. {
  3475. /* First check full NSS mask, if we can simply limit NSS */
  3476. if (ath10k_bitrate_mask_nss(mask, band, fixed_nss))
  3477. return true;
  3478. /* Next Check single rate is set */
  3479. return ath10k_bitrate_mask_rate(ar, mask, band, fixed_rate, fixed_nss);
  3480. }
  3481. static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
  3482. u8 fixed_rate,
  3483. u8 fixed_nss,
  3484. u8 force_sgi)
  3485. {
  3486. struct ath10k *ar = arvif->ar;
  3487. u32 vdev_param;
  3488. int ret = 0;
  3489. mutex_lock(&ar->conf_mutex);
  3490. if (arvif->fixed_rate == fixed_rate &&
  3491. arvif->fixed_nss == fixed_nss &&
  3492. arvif->force_sgi == force_sgi)
  3493. goto exit;
  3494. if (fixed_rate == WMI_FIXED_RATE_NONE)
  3495. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac disable fixed bitrate mask\n");
  3496. if (force_sgi)
  3497. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac force sgi\n");
  3498. vdev_param = ar->wmi.vdev_param->fixed_rate;
  3499. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
  3500. vdev_param, fixed_rate);
  3501. if (ret) {
  3502. ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
  3503. fixed_rate, ret);
  3504. ret = -EINVAL;
  3505. goto exit;
  3506. }
  3507. arvif->fixed_rate = fixed_rate;
  3508. vdev_param = ar->wmi.vdev_param->nss;
  3509. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
  3510. vdev_param, fixed_nss);
  3511. if (ret) {
  3512. ath10k_warn(ar, "failed to set fixed nss param %d: %d\n",
  3513. fixed_nss, ret);
  3514. ret = -EINVAL;
  3515. goto exit;
  3516. }
  3517. arvif->fixed_nss = fixed_nss;
  3518. vdev_param = ar->wmi.vdev_param->sgi;
  3519. ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
  3520. force_sgi);
  3521. if (ret) {
  3522. ath10k_warn(ar, "failed to set sgi param %d: %d\n",
  3523. force_sgi, ret);
  3524. ret = -EINVAL;
  3525. goto exit;
  3526. }
  3527. arvif->force_sgi = force_sgi;
  3528. exit:
  3529. mutex_unlock(&ar->conf_mutex);
  3530. return ret;
  3531. }
  3532. static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
  3533. struct ieee80211_vif *vif,
  3534. const struct cfg80211_bitrate_mask *mask)
  3535. {
  3536. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  3537. struct ath10k *ar = arvif->ar;
  3538. enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
  3539. u8 fixed_rate = WMI_FIXED_RATE_NONE;
  3540. u8 fixed_nss = ar->num_rf_chains;
  3541. u8 force_sgi;
  3542. force_sgi = mask->control[band].gi;
  3543. if (force_sgi == NL80211_TXRATE_FORCE_LGI)
  3544. return -EINVAL;
  3545. if (!ath10k_default_bitrate_mask(ar, band, mask)) {
  3546. if (!ath10k_get_fixed_rate_nss(ar, mask, band,
  3547. &fixed_rate,
  3548. &fixed_nss))
  3549. return -EINVAL;
  3550. }
  3551. if (fixed_rate == WMI_FIXED_RATE_NONE && force_sgi) {
  3552. ath10k_warn(ar, "failed to force SGI usage for default rate settings\n");
  3553. return -EINVAL;
  3554. }
  3555. return ath10k_set_fixed_rate_param(arvif, fixed_rate,
  3556. fixed_nss, force_sgi);
  3557. }
  3558. static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
  3559. struct ieee80211_vif *vif,
  3560. struct ieee80211_sta *sta,
  3561. u32 changed)
  3562. {
  3563. struct ath10k *ar = hw->priv;
  3564. struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
  3565. u32 bw, smps;
  3566. spin_lock_bh(&ar->data_lock);
  3567. ath10k_dbg(ar, ATH10K_DBG_MAC,
  3568. "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
  3569. sta->addr, changed, sta->bandwidth, sta->rx_nss,
  3570. sta->smps_mode);
  3571. if (changed & IEEE80211_RC_BW_CHANGED) {
  3572. bw = WMI_PEER_CHWIDTH_20MHZ;
  3573. switch (sta->bandwidth) {
  3574. case IEEE80211_STA_RX_BW_20:
  3575. bw = WMI_PEER_CHWIDTH_20MHZ;
  3576. break;
  3577. case IEEE80211_STA_RX_BW_40:
  3578. bw = WMI_PEER_CHWIDTH_40MHZ;
  3579. break;
  3580. case IEEE80211_STA_RX_BW_80:
  3581. bw = WMI_PEER_CHWIDTH_80MHZ;
  3582. break;
  3583. case IEEE80211_STA_RX_BW_160:
  3584. ath10k_warn(ar, "Invalid bandwith %d in rc update for %pM\n",
  3585. sta->bandwidth, sta->addr);
  3586. bw = WMI_PEER_CHWIDTH_20MHZ;
  3587. break;
  3588. }
  3589. arsta->bw = bw;
  3590. }
  3591. if (changed & IEEE80211_RC_NSS_CHANGED)
  3592. arsta->nss = sta->rx_nss;
  3593. if (changed & IEEE80211_RC_SMPS_CHANGED) {
  3594. smps = WMI_PEER_SMPS_PS_NONE;
  3595. switch (sta->smps_mode) {
  3596. case IEEE80211_SMPS_AUTOMATIC:
  3597. case IEEE80211_SMPS_OFF:
  3598. smps = WMI_PEER_SMPS_PS_NONE;
  3599. break;
  3600. case IEEE80211_SMPS_STATIC:
  3601. smps = WMI_PEER_SMPS_STATIC;
  3602. break;
  3603. case IEEE80211_SMPS_DYNAMIC:
  3604. smps = WMI_PEER_SMPS_DYNAMIC;
  3605. break;
  3606. case IEEE80211_SMPS_NUM_MODES:
  3607. ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
  3608. sta->smps_mode, sta->addr);
  3609. smps = WMI_PEER_SMPS_PS_NONE;
  3610. break;
  3611. }
  3612. arsta->smps = smps;
  3613. }
  3614. arsta->changed |= changed;
  3615. spin_unlock_bh(&ar->data_lock);
  3616. ieee80211_queue_work(hw, &arsta->update_wk);
  3617. }
  3618. static u64 ath10k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
  3619. {
  3620. /*
  3621. * FIXME: Return 0 for time being. Need to figure out whether FW
  3622. * has the API to fetch 64-bit local TSF
  3623. */
  3624. return 0;
  3625. }
  3626. static int ath10k_ampdu_action(struct ieee80211_hw *hw,
  3627. struct ieee80211_vif *vif,
  3628. enum ieee80211_ampdu_mlme_action action,
  3629. struct ieee80211_sta *sta, u16 tid, u16 *ssn,
  3630. u8 buf_size)
  3631. {
  3632. struct ath10k *ar = hw->priv;
  3633. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  3634. ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
  3635. arvif->vdev_id, sta->addr, tid, action);
  3636. switch (action) {
  3637. case IEEE80211_AMPDU_RX_START:
  3638. case IEEE80211_AMPDU_RX_STOP:
  3639. /* HTT AddBa/DelBa events trigger mac80211 Rx BA session
  3640. * creation/removal. Do we need to verify this?
  3641. */
  3642. return 0;
  3643. case IEEE80211_AMPDU_TX_START:
  3644. case IEEE80211_AMPDU_TX_STOP_CONT:
  3645. case IEEE80211_AMPDU_TX_STOP_FLUSH:
  3646. case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
  3647. case IEEE80211_AMPDU_TX_OPERATIONAL:
  3648. /* Firmware offloads Tx aggregation entirely so deny mac80211
  3649. * Tx aggregation requests.
  3650. */
  3651. return -EOPNOTSUPP;
  3652. }
  3653. return -EINVAL;
  3654. }
  3655. static const struct ieee80211_ops ath10k_ops = {
  3656. .tx = ath10k_tx,
  3657. .start = ath10k_start,
  3658. .stop = ath10k_stop,
  3659. .config = ath10k_config,
  3660. .add_interface = ath10k_add_interface,
  3661. .remove_interface = ath10k_remove_interface,
  3662. .configure_filter = ath10k_configure_filter,
  3663. .bss_info_changed = ath10k_bss_info_changed,
  3664. .hw_scan = ath10k_hw_scan,
  3665. .cancel_hw_scan = ath10k_cancel_hw_scan,
  3666. .set_key = ath10k_set_key,
  3667. .sta_state = ath10k_sta_state,
  3668. .conf_tx = ath10k_conf_tx,
  3669. .remain_on_channel = ath10k_remain_on_channel,
  3670. .cancel_remain_on_channel = ath10k_cancel_remain_on_channel,
  3671. .set_rts_threshold = ath10k_set_rts_threshold,
  3672. .set_frag_threshold = ath10k_set_frag_threshold,
  3673. .flush = ath10k_flush,
  3674. .tx_last_beacon = ath10k_tx_last_beacon,
  3675. .set_antenna = ath10k_set_antenna,
  3676. .get_antenna = ath10k_get_antenna,
  3677. .restart_complete = ath10k_restart_complete,
  3678. .get_survey = ath10k_get_survey,
  3679. .set_bitrate_mask = ath10k_set_bitrate_mask,
  3680. .sta_rc_update = ath10k_sta_rc_update,
  3681. .get_tsf = ath10k_get_tsf,
  3682. .ampdu_action = ath10k_ampdu_action,
  3683. .get_et_sset_count = ath10k_debug_get_et_sset_count,
  3684. .get_et_stats = ath10k_debug_get_et_stats,
  3685. .get_et_strings = ath10k_debug_get_et_strings,
  3686. CFG80211_TESTMODE_CMD(ath10k_tm_cmd)
  3687. #ifdef CONFIG_PM
  3688. .suspend = ath10k_suspend,
  3689. .resume = ath10k_resume,
  3690. #endif
  3691. };
  3692. #define RATETAB_ENT(_rate, _rateid, _flags) { \
  3693. .bitrate = (_rate), \
  3694. .flags = (_flags), \
  3695. .hw_value = (_rateid), \
  3696. }
  3697. #define CHAN2G(_channel, _freq, _flags) { \
  3698. .band = IEEE80211_BAND_2GHZ, \
  3699. .hw_value = (_channel), \
  3700. .center_freq = (_freq), \
  3701. .flags = (_flags), \
  3702. .max_antenna_gain = 0, \
  3703. .max_power = 30, \
  3704. }
  3705. #define CHAN5G(_channel, _freq, _flags) { \
  3706. .band = IEEE80211_BAND_5GHZ, \
  3707. .hw_value = (_channel), \
  3708. .center_freq = (_freq), \
  3709. .flags = (_flags), \
  3710. .max_antenna_gain = 0, \
  3711. .max_power = 30, \
  3712. }
  3713. static const struct ieee80211_channel ath10k_2ghz_channels[] = {
  3714. CHAN2G(1, 2412, 0),
  3715. CHAN2G(2, 2417, 0),
  3716. CHAN2G(3, 2422, 0),
  3717. CHAN2G(4, 2427, 0),
  3718. CHAN2G(5, 2432, 0),
  3719. CHAN2G(6, 2437, 0),
  3720. CHAN2G(7, 2442, 0),
  3721. CHAN2G(8, 2447, 0),
  3722. CHAN2G(9, 2452, 0),
  3723. CHAN2G(10, 2457, 0),
  3724. CHAN2G(11, 2462, 0),
  3725. CHAN2G(12, 2467, 0),
  3726. CHAN2G(13, 2472, 0),
  3727. CHAN2G(14, 2484, 0),
  3728. };
  3729. static const struct ieee80211_channel ath10k_5ghz_channels[] = {
  3730. CHAN5G(36, 5180, 0),
  3731. CHAN5G(40, 5200, 0),
  3732. CHAN5G(44, 5220, 0),
  3733. CHAN5G(48, 5240, 0),
  3734. CHAN5G(52, 5260, 0),
  3735. CHAN5G(56, 5280, 0),
  3736. CHAN5G(60, 5300, 0),
  3737. CHAN5G(64, 5320, 0),
  3738. CHAN5G(100, 5500, 0),
  3739. CHAN5G(104, 5520, 0),
  3740. CHAN5G(108, 5540, 0),
  3741. CHAN5G(112, 5560, 0),
  3742. CHAN5G(116, 5580, 0),
  3743. CHAN5G(120, 5600, 0),
  3744. CHAN5G(124, 5620, 0),
  3745. CHAN5G(128, 5640, 0),
  3746. CHAN5G(132, 5660, 0),
  3747. CHAN5G(136, 5680, 0),
  3748. CHAN5G(140, 5700, 0),
  3749. CHAN5G(149, 5745, 0),
  3750. CHAN5G(153, 5765, 0),
  3751. CHAN5G(157, 5785, 0),
  3752. CHAN5G(161, 5805, 0),
  3753. CHAN5G(165, 5825, 0),
  3754. };
  3755. static struct ieee80211_rate ath10k_rates[] = {
  3756. /* CCK */
  3757. RATETAB_ENT(10, 0x82, 0),
  3758. RATETAB_ENT(20, 0x84, 0),
  3759. RATETAB_ENT(55, 0x8b, 0),
  3760. RATETAB_ENT(110, 0x96, 0),
  3761. /* OFDM */
  3762. RATETAB_ENT(60, 0x0c, 0),
  3763. RATETAB_ENT(90, 0x12, 0),
  3764. RATETAB_ENT(120, 0x18, 0),
  3765. RATETAB_ENT(180, 0x24, 0),
  3766. RATETAB_ENT(240, 0x30, 0),
  3767. RATETAB_ENT(360, 0x48, 0),
  3768. RATETAB_ENT(480, 0x60, 0),
  3769. RATETAB_ENT(540, 0x6c, 0),
  3770. };
  3771. #define ath10k_a_rates (ath10k_rates + 4)
  3772. #define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - 4)
  3773. #define ath10k_g_rates (ath10k_rates + 0)
  3774. #define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
  3775. struct ath10k *ath10k_mac_create(size_t priv_size)
  3776. {
  3777. struct ieee80211_hw *hw;
  3778. struct ath10k *ar;
  3779. hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, &ath10k_ops);
  3780. if (!hw)
  3781. return NULL;
  3782. ar = hw->priv;
  3783. ar->hw = hw;
  3784. return ar;
  3785. }
  3786. void ath10k_mac_destroy(struct ath10k *ar)
  3787. {
  3788. ieee80211_free_hw(ar->hw);
  3789. }
  3790. static const struct ieee80211_iface_limit ath10k_if_limits[] = {
  3791. {
  3792. .max = 8,
  3793. .types = BIT(NL80211_IFTYPE_STATION)
  3794. | BIT(NL80211_IFTYPE_P2P_CLIENT)
  3795. },
  3796. {
  3797. .max = 3,
  3798. .types = BIT(NL80211_IFTYPE_P2P_GO)
  3799. },
  3800. {
  3801. .max = 7,
  3802. .types = BIT(NL80211_IFTYPE_AP)
  3803. },
  3804. };
  3805. static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
  3806. {
  3807. .max = 8,
  3808. .types = BIT(NL80211_IFTYPE_AP)
  3809. },
  3810. };
  3811. static const struct ieee80211_iface_combination ath10k_if_comb[] = {
  3812. {
  3813. .limits = ath10k_if_limits,
  3814. .n_limits = ARRAY_SIZE(ath10k_if_limits),
  3815. .max_interfaces = 8,
  3816. .num_different_channels = 1,
  3817. .beacon_int_infra_match = true,
  3818. },
  3819. };
  3820. static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
  3821. {
  3822. .limits = ath10k_10x_if_limits,
  3823. .n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
  3824. .max_interfaces = 8,
  3825. .num_different_channels = 1,
  3826. .beacon_int_infra_match = true,
  3827. #ifdef CONFIG_ATH10K_DFS_CERTIFIED
  3828. .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
  3829. BIT(NL80211_CHAN_WIDTH_20) |
  3830. BIT(NL80211_CHAN_WIDTH_40) |
  3831. BIT(NL80211_CHAN_WIDTH_80),
  3832. #endif
  3833. },
  3834. };
  3835. static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
  3836. {
  3837. struct ieee80211_sta_vht_cap vht_cap = {0};
  3838. u16 mcs_map;
  3839. int i;
  3840. vht_cap.vht_supported = 1;
  3841. vht_cap.cap = ar->vht_cap_info;
  3842. mcs_map = 0;
  3843. for (i = 0; i < 8; i++) {
  3844. if (i < ar->num_rf_chains)
  3845. mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i*2);
  3846. else
  3847. mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i*2);
  3848. }
  3849. vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
  3850. vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
  3851. return vht_cap;
  3852. }
  3853. static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
  3854. {
  3855. int i;
  3856. struct ieee80211_sta_ht_cap ht_cap = {0};
  3857. if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
  3858. return ht_cap;
  3859. ht_cap.ht_supported = 1;
  3860. ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
  3861. ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
  3862. ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
  3863. ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
  3864. ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;
  3865. if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
  3866. ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
  3867. if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
  3868. ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
  3869. if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
  3870. u32 smps;
  3871. smps = WLAN_HT_CAP_SM_PS_DYNAMIC;
  3872. smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
  3873. ht_cap.cap |= smps;
  3874. }
  3875. if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC)
  3876. ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
  3877. if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
  3878. u32 stbc;
  3879. stbc = ar->ht_cap_info;
  3880. stbc &= WMI_HT_CAP_RX_STBC;
  3881. stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
  3882. stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
  3883. stbc &= IEEE80211_HT_CAP_RX_STBC;
  3884. ht_cap.cap |= stbc;
  3885. }
  3886. if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
  3887. ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
  3888. if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
  3889. ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
  3890. /* max AMSDU is implicitly taken from vht_cap_info */
  3891. if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
  3892. ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
  3893. for (i = 0; i < ar->num_rf_chains; i++)
  3894. ht_cap.mcs.rx_mask[i] = 0xFF;
  3895. ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
  3896. return ht_cap;
  3897. }
  3898. static void ath10k_get_arvif_iter(void *data, u8 *mac,
  3899. struct ieee80211_vif *vif)
  3900. {
  3901. struct ath10k_vif_iter *arvif_iter = data;
  3902. struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  3903. if (arvif->vdev_id == arvif_iter->vdev_id)
  3904. arvif_iter->arvif = arvif;
  3905. }
  3906. struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
  3907. {
  3908. struct ath10k_vif_iter arvif_iter;
  3909. u32 flags;
  3910. memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
  3911. arvif_iter.vdev_id = vdev_id;
  3912. flags = IEEE80211_IFACE_ITER_RESUME_ALL;
  3913. ieee80211_iterate_active_interfaces_atomic(ar->hw,
  3914. flags,
  3915. ath10k_get_arvif_iter,
  3916. &arvif_iter);
  3917. if (!arvif_iter.arvif) {
  3918. ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
  3919. return NULL;
  3920. }
  3921. return arvif_iter.arvif;
  3922. }
  3923. int ath10k_mac_register(struct ath10k *ar)
  3924. {
  3925. struct ieee80211_supported_band *band;
  3926. struct ieee80211_sta_vht_cap vht_cap;
  3927. struct ieee80211_sta_ht_cap ht_cap;
  3928. void *channels;
  3929. int ret;
  3930. SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
  3931. SET_IEEE80211_DEV(ar->hw, ar->dev);
  3932. ht_cap = ath10k_get_ht_cap(ar);
  3933. vht_cap = ath10k_create_vht_cap(ar);
  3934. if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
  3935. channels = kmemdup(ath10k_2ghz_channels,
  3936. sizeof(ath10k_2ghz_channels),
  3937. GFP_KERNEL);
  3938. if (!channels) {
  3939. ret = -ENOMEM;
  3940. goto err_free;
  3941. }
  3942. band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
  3943. band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
  3944. band->channels = channels;
  3945. band->n_bitrates = ath10k_g_rates_size;
  3946. band->bitrates = ath10k_g_rates;
  3947. band->ht_cap = ht_cap;
  3948. /* vht is not supported in 2.4 GHz */
  3949. ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
  3950. }
  3951. if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
  3952. channels = kmemdup(ath10k_5ghz_channels,
  3953. sizeof(ath10k_5ghz_channels),
  3954. GFP_KERNEL);
  3955. if (!channels) {
  3956. ret = -ENOMEM;
  3957. goto err_free;
  3958. }
  3959. band = &ar->mac.sbands[IEEE80211_BAND_5GHZ];
  3960. band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
  3961. band->channels = channels;
  3962. band->n_bitrates = ath10k_a_rates_size;
  3963. band->bitrates = ath10k_a_rates;
  3964. band->ht_cap = ht_cap;
  3965. band->vht_cap = vht_cap;
  3966. ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
  3967. }
  3968. ar->hw->wiphy->interface_modes =
  3969. BIT(NL80211_IFTYPE_STATION) |
  3970. BIT(NL80211_IFTYPE_AP);
  3971. ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
  3972. ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;
  3973. if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->fw_features))
  3974. ar->hw->wiphy->interface_modes |=
  3975. BIT(NL80211_IFTYPE_P2P_CLIENT) |
  3976. BIT(NL80211_IFTYPE_P2P_GO);
  3977. ar->hw->flags = IEEE80211_HW_SIGNAL_DBM |
  3978. IEEE80211_HW_SUPPORTS_PS |
  3979. IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
  3980. IEEE80211_HW_SUPPORTS_UAPSD |
  3981. IEEE80211_HW_MFP_CAPABLE |
  3982. IEEE80211_HW_REPORTS_TX_ACK_STATUS |
  3983. IEEE80211_HW_HAS_RATE_CONTROL |
  3984. IEEE80211_HW_AP_LINK_PS |
  3985. IEEE80211_HW_SPECTRUM_MGMT;
  3986. /* MSDU can have HTT TX fragment pushed in front. The additional 4
  3987. * bytes is used for padding/alignment if necessary. */
  3988. ar->hw->extra_tx_headroom += sizeof(struct htt_data_tx_desc_frag)*2 + 4;
  3989. ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
  3990. if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
  3991. ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
  3992. if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
  3993. ar->hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
  3994. ar->hw->flags |= IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
  3995. }
  3996. ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
  3997. ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
  3998. ar->hw->vif_data_size = sizeof(struct ath10k_vif);
  3999. ar->hw->sta_data_size = sizeof(struct ath10k_sta);
  4000. ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
  4001. ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
  4002. ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
  4003. ar->hw->wiphy->max_remain_on_channel_duration = 5000;
  4004. ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
  4005. /*
  4006. * on LL hardware queues are managed entirely by the FW
  4007. * so we only advertise to mac we can do the queues thing
  4008. */
  4009. ar->hw->queues = 4;
  4010. if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
  4011. ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
  4012. ar->hw->wiphy->n_iface_combinations =
  4013. ARRAY_SIZE(ath10k_10x_if_comb);
  4014. } else {
  4015. ar->hw->wiphy->iface_combinations = ath10k_if_comb;
  4016. ar->hw->wiphy->n_iface_combinations =
  4017. ARRAY_SIZE(ath10k_if_comb);
  4018. ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
  4019. }
  4020. ar->hw->netdev_features = NETIF_F_HW_CSUM;
  4021. if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
  4022. /* Init ath dfs pattern detector */
  4023. ar->ath_common.debug_mask = ATH_DBG_DFS;
  4024. ar->dfs_detector = dfs_pattern_detector_init(&ar->ath_common,
  4025. NL80211_DFS_UNSET);
  4026. if (!ar->dfs_detector)
  4027. ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
  4028. }
  4029. ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
  4030. ath10k_reg_notifier);
  4031. if (ret) {
  4032. ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
  4033. goto err_free;
  4034. }
  4035. ret = ieee80211_register_hw(ar->hw);
  4036. if (ret) {
  4037. ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
  4038. goto err_free;
  4039. }
  4040. if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
  4041. ret = regulatory_hint(ar->hw->wiphy,
  4042. ar->ath_common.regulatory.alpha2);
  4043. if (ret)
  4044. goto err_unregister;
  4045. }
  4046. return 0;
  4047. err_unregister:
  4048. ieee80211_unregister_hw(ar->hw);
  4049. err_free:
  4050. kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
  4051. kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
  4052. return ret;
  4053. }
  4054. void ath10k_mac_unregister(struct ath10k *ar)
  4055. {
  4056. ieee80211_unregister_hw(ar->hw);
  4057. if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
  4058. ar->dfs_detector->exit(ar->dfs_detector);
  4059. kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
  4060. kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
  4061. SET_IEEE80211_DEV(ar->hw, NULL);
  4062. }