mac.c 120.1 KB
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/*
 * Copyright (c) 2005-2011 Atheros Communications Inc.
 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "mac.h"

#include <net/mac80211.h>
#include <linux/etherdevice.h>

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#include "hif.h"
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#include "core.h"
#include "debug.h"
#include "wmi.h"
#include "htt.h"
#include "txrx.h"

/**********/
/* Crypto */
/**********/

static int ath10k_send_key(struct ath10k_vif *arvif,
			   struct ieee80211_key_conf *key,
			   enum set_key_cmd cmd,
			   const u8 *macaddr)
{
	struct wmi_vdev_install_key_arg arg = {
		.vdev_id = arvif->vdev_id,
		.key_idx = key->keyidx,
		.key_len = key->keylen,
		.key_data = key->key,
		.macaddr = macaddr,
	};

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	lockdep_assert_held(&arvif->ar->conf_mutex);

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	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
		arg.key_flags = WMI_KEY_PAIRWISE;
	else
		arg.key_flags = WMI_KEY_GROUP;

	switch (key->cipher) {
	case WLAN_CIPHER_SUITE_CCMP:
		arg.key_cipher = WMI_CIPHER_AES_CCM;
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		if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
			key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
		else
			key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
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		break;
	case WLAN_CIPHER_SUITE_TKIP:
		arg.key_cipher = WMI_CIPHER_TKIP;
		arg.key_txmic_len = 8;
		arg.key_rxmic_len = 8;
		break;
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_WEP104:
		arg.key_cipher = WMI_CIPHER_WEP;
		/* AP/IBSS mode requires self-key to be groupwise
		 * Otherwise pairwise key must be set */
		if (memcmp(macaddr, arvif->vif->addr, ETH_ALEN))
			arg.key_flags = WMI_KEY_PAIRWISE;
		break;
	default:
		ath10k_warn("cipher %d is not supported\n", key->cipher);
		return -EOPNOTSUPP;
	}

	if (cmd == DISABLE_KEY) {
		arg.key_cipher = WMI_CIPHER_NONE;
		arg.key_data = NULL;
	}

	return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
}

static int ath10k_install_key(struct ath10k_vif *arvif,
			      struct ieee80211_key_conf *key,
			      enum set_key_cmd cmd,
			      const u8 *macaddr)
{
	struct ath10k *ar = arvif->ar;
	int ret;

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	lockdep_assert_held(&ar->conf_mutex);

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	reinit_completion(&ar->install_key_done);
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	ret = ath10k_send_key(arvif, key, cmd, macaddr);
	if (ret)
		return ret;

	ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
	if (ret == 0)
		return -ETIMEDOUT;

	return 0;
}

static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
					const u8 *addr)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	int ret;
	int i;

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
	spin_unlock_bh(&ar->data_lock);

	if (!peer)
		return -ENOENT;

	for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
		if (arvif->wep_keys[i] == NULL)
			continue;

		ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
					 addr);
		if (ret)
			return ret;

		peer->keys[i] = arvif->wep_keys[i];
	}

	return 0;
}

static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
				  const u8 *addr)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	int first_errno = 0;
	int ret;
	int i;

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
	spin_unlock_bh(&ar->data_lock);

	if (!peer)
		return -ENOENT;

	for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
		if (peer->keys[i] == NULL)
			continue;

		ret = ath10k_install_key(arvif, peer->keys[i],
					 DISABLE_KEY, addr);
		if (ret && first_errno == 0)
			first_errno = ret;

		if (ret)
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			ath10k_warn("failed to remove peer wep key %d: %d\n",
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				    i, ret);

		peer->keys[i] = NULL;
	}

	return first_errno;
}

static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
				 struct ieee80211_key_conf *key)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	u8 addr[ETH_ALEN];
	int first_errno = 0;
	int ret;
	int i;

	lockdep_assert_held(&ar->conf_mutex);

	for (;;) {
		/* since ath10k_install_key we can't hold data_lock all the
		 * time, so we try to remove the keys incrementally */
		spin_lock_bh(&ar->data_lock);
		i = 0;
		list_for_each_entry(peer, &ar->peers, list) {
			for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
				if (peer->keys[i] == key) {
					memcpy(addr, peer->addr, ETH_ALEN);
					peer->keys[i] = NULL;
					break;
				}
			}

			if (i < ARRAY_SIZE(peer->keys))
				break;
		}
		spin_unlock_bh(&ar->data_lock);

		if (i == ARRAY_SIZE(peer->keys))
			break;

		ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr);
		if (ret && first_errno == 0)
			first_errno = ret;

		if (ret)
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			ath10k_warn("failed to remove key for %pM: %d\n",
				    addr, ret);
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	}

	return first_errno;
}


/*********************/
/* General utilities */
/*********************/

static inline enum wmi_phy_mode
chan_to_phymode(const struct cfg80211_chan_def *chandef)
{
	enum wmi_phy_mode phymode = MODE_UNKNOWN;

	switch (chandef->chan->band) {
	case IEEE80211_BAND_2GHZ:
		switch (chandef->width) {
		case NL80211_CHAN_WIDTH_20_NOHT:
			phymode = MODE_11G;
			break;
		case NL80211_CHAN_WIDTH_20:
			phymode = MODE_11NG_HT20;
			break;
		case NL80211_CHAN_WIDTH_40:
			phymode = MODE_11NG_HT40;
			break;
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		case NL80211_CHAN_WIDTH_5:
		case NL80211_CHAN_WIDTH_10:
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		case NL80211_CHAN_WIDTH_80:
		case NL80211_CHAN_WIDTH_80P80:
		case NL80211_CHAN_WIDTH_160:
			phymode = MODE_UNKNOWN;
			break;
		}
		break;
	case IEEE80211_BAND_5GHZ:
		switch (chandef->width) {
		case NL80211_CHAN_WIDTH_20_NOHT:
			phymode = MODE_11A;
			break;
		case NL80211_CHAN_WIDTH_20:
			phymode = MODE_11NA_HT20;
			break;
		case NL80211_CHAN_WIDTH_40:
			phymode = MODE_11NA_HT40;
			break;
		case NL80211_CHAN_WIDTH_80:
			phymode = MODE_11AC_VHT80;
			break;
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		case NL80211_CHAN_WIDTH_5:
		case NL80211_CHAN_WIDTH_10:
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		case NL80211_CHAN_WIDTH_80P80:
		case NL80211_CHAN_WIDTH_160:
			phymode = MODE_UNKNOWN;
			break;
		}
		break;
	default:
		break;
	}

	WARN_ON(phymode == MODE_UNKNOWN);
	return phymode;
}

static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
{
/*
 * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
 *   0 for no restriction
 *   1 for 1/4 us
 *   2 for 1/2 us
 *   3 for 1 us
 *   4 for 2 us
 *   5 for 4 us
 *   6 for 8 us
 *   7 for 16 us
 */
	switch (mpdudensity) {
	case 0:
		return 0;
	case 1:
	case 2:
	case 3:
	/* Our lower layer calculations limit our precision to
	   1 microsecond */
		return 1;
	case 4:
		return 2;
	case 5:
		return 4;
	case 6:
		return 8;
	case 7:
		return 16;
	default:
		return 0;
	}
}

static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_peer_create(ar, vdev_id, addr);
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	if (ret) {
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		ath10k_warn("failed to create wmi peer %pM on vdev %i: %i\n",
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			    addr, vdev_id, ret);
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		return ret;
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	}
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	ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
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	if (ret) {
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		ath10k_warn("failed to wait for created wmi peer %pM on vdev %i: %i\n",
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			    addr, vdev_id, ret);
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		return ret;
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	}
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	spin_lock_bh(&ar->data_lock);
	ar->num_peers++;
	spin_unlock_bh(&ar->data_lock);
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	return 0;
}

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static int ath10k_mac_set_kickout(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 param;
	int ret;

	param = ar->wmi.pdev_param->sta_kickout_th;
	ret = ath10k_wmi_pdev_set_param(ar, param,
					ATH10K_KICKOUT_THRESHOLD);
	if (ret) {
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		ath10k_warn("failed to set kickout threshold on vdev %i: %d\n",
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			    arvif->vdev_id, ret);
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		return ret;
	}

	param = ar->wmi.vdev_param->ap_keepalive_min_idle_inactive_time_secs;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
					ATH10K_KEEPALIVE_MIN_IDLE);
	if (ret) {
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		ath10k_warn("failed to set keepalive minimum idle time on vdev %i: %d\n",
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			    arvif->vdev_id, ret);
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		return ret;
	}

	param = ar->wmi.vdev_param->ap_keepalive_max_idle_inactive_time_secs;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
					ATH10K_KEEPALIVE_MAX_IDLE);
	if (ret) {
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		ath10k_warn("failed to set keepalive maximum idle time on vdev %i: %d\n",
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			    arvif->vdev_id, ret);
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		return ret;
	}

	param = ar->wmi.vdev_param->ap_keepalive_max_unresponsive_time_secs;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param,
					ATH10K_KEEPALIVE_MAX_UNRESPONSIVE);
	if (ret) {
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		ath10k_warn("failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
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			    arvif->vdev_id, ret);
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		return ret;
	}

	return 0;
}

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static int  ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
{
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	struct ath10k *ar = arvif->ar;
	u32 vdev_param;

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	if (value != 0xFFFFFFFF)
		value = min_t(u32, arvif->ar->hw->wiphy->rts_threshold,
			      ATH10K_RTS_MAX);

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	vdev_param = ar->wmi.vdev_param->rts_threshold;
	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
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}

static int ath10k_mac_set_frag(struct ath10k_vif *arvif, u32 value)
{
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	struct ath10k *ar = arvif->ar;
	u32 vdev_param;

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	if (value != 0xFFFFFFFF)
		value = clamp_t(u32, arvif->ar->hw->wiphy->frag_threshold,
				ATH10K_FRAGMT_THRESHOLD_MIN,
				ATH10K_FRAGMT_THRESHOLD_MAX);

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	vdev_param = ar->wmi.vdev_param->fragmentation_threshold;
	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
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}

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static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
	if (ret)
		return ret;

	ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
	if (ret)
		return ret;

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	spin_lock_bh(&ar->data_lock);
	ar->num_peers--;
	spin_unlock_bh(&ar->data_lock);

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	return 0;
}

static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
{
	struct ath10k_peer *peer, *tmp;

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
		if (peer->vdev_id != vdev_id)
			continue;

		ath10k_warn("removing stale peer %pM from vdev_id %d\n",
			    peer->addr, vdev_id);

		list_del(&peer->list);
		kfree(peer);
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		ar->num_peers--;
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	}
	spin_unlock_bh(&ar->data_lock);
}

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static void ath10k_peer_cleanup_all(struct ath10k *ar)
{
	struct ath10k_peer *peer, *tmp;

	lockdep_assert_held(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
	list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
		list_del(&peer->list);
		kfree(peer);
	}
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	ar->num_peers = 0;
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	spin_unlock_bh(&ar->data_lock);
}

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/************************/
/* Interface management */
/************************/

static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
{
	int ret;

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	lockdep_assert_held(&ar->conf_mutex);

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	ret = wait_for_completion_timeout(&ar->vdev_setup_done,
					  ATH10K_VDEV_SETUP_TIMEOUT_HZ);
	if (ret == 0)
		return -ETIMEDOUT;

	return 0;
}

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static bool ath10k_monitor_is_enabled(struct ath10k *ar)
{
	lockdep_assert_held(&ar->conf_mutex);

	ath10k_dbg(ATH10K_DBG_MAC,
		   "mac monitor refs: promisc %d monitor %d cac %d\n",
		   ar->promisc, ar->monitor,
		   test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags));

	return ar->promisc || ar->monitor ||
	       test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
}

static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
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{
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	struct cfg80211_chan_def *chandef = &ar->chandef;
	struct ieee80211_channel *channel = chandef->chan;
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	struct wmi_vdev_start_request_arg arg = {};
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	arg.vdev_id = vdev_id;
	arg.channel.freq = channel->center_freq;
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	arg.channel.band_center_freq1 = chandef->center_freq1;
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	/* TODO setup this dynamically, what in case we
	   don't have any vifs? */
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	arg.channel.mode = chan_to_phymode(chandef);
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	arg.channel.chan_radar =
			!!(channel->flags & IEEE80211_CHAN_RADAR);
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	arg.channel.min_power = 0;
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	arg.channel.max_power = channel->max_power * 2;
	arg.channel.max_reg_power = channel->max_reg_power * 2;
	arg.channel.max_antenna_gain = channel->max_antenna_gain * 2;
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	ret = ath10k_wmi_vdev_start(ar, &arg);
	if (ret) {
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		ath10k_warn("failed to request monitor vdev %i start: %d\n",
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			    vdev_id, ret);
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		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
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		ath10k_warn("failed to synchronize setup for monitor vdev %i: %d\n",
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			    vdev_id, ret);
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		return ret;
	}

	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
	if (ret) {
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		ath10k_warn("failed to put up monitor vdev %i: %d\n",
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			    vdev_id, ret);
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		goto vdev_stop;
	}

	ar->monitor_vdev_id = vdev_id;

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	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
		   ar->monitor_vdev_id);
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	return 0;

vdev_stop:
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
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		ath10k_warn("failed to stop monitor vdev %i after start failure: %d\n",
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			    ar->monitor_vdev_id, ret);
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	return ret;
}

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static int ath10k_monitor_vdev_stop(struct ath10k *ar)
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{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

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	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
	if (ret)
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		ath10k_warn("failed to put down monitor vdev %i: %d\n",
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			    ar->monitor_vdev_id, ret);
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	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
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		ath10k_warn("failed to to request monitor vdev %i stop: %d\n",
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			    ar->monitor_vdev_id, ret);
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	ret = ath10k_vdev_setup_sync(ar);
	if (ret)
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		ath10k_warn("failed to synchronise monitor vdev %i: %d\n",
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			    ar->monitor_vdev_id, ret);
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	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
		   ar->monitor_vdev_id);
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	return ret;
}

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static int ath10k_monitor_vdev_create(struct ath10k *ar)
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{
	int bit, ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

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	if (ar->free_vdev_map == 0) {
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		ath10k_warn("failed to find free vdev id for monitor vdev\n");
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		return -ENOMEM;
	}

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	bit = ffs(ar->free_vdev_map);

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	ar->monitor_vdev_id = bit - 1;

	ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
				     WMI_VDEV_TYPE_MONITOR,
				     0, ar->mac_addr);
	if (ret) {
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		ath10k_warn("failed to request monitor vdev %i creation: %d\n",
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			    ar->monitor_vdev_id, ret);
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		return ret;
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	}

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	ar->free_vdev_map &= ~(1 << ar->monitor_vdev_id);
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	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
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		   ar->monitor_vdev_id);

	return 0;
}

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static int ath10k_monitor_vdev_delete(struct ath10k *ar)
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{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
	if (ret) {
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		ath10k_warn("failed to request wmi monitor vdev %i removal: %d\n",
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			    ar->monitor_vdev_id, ret);
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		return ret;
	}

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	ar->free_vdev_map |= 1 << ar->monitor_vdev_id;
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	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
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		   ar->monitor_vdev_id);
	return ret;
}

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static int ath10k_monitor_start(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	if (!ath10k_monitor_is_enabled(ar)) {
		ath10k_warn("trying to start monitor with no references\n");
		return 0;
	}

	if (ar->monitor_started) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor already started\n");
		return 0;
	}

	ret = ath10k_monitor_vdev_create(ar);
	if (ret) {
		ath10k_warn("failed to create monitor vdev: %d\n", ret);
		return ret;
	}

	ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
	if (ret) {
		ath10k_warn("failed to start monitor vdev: %d\n", ret);
		ath10k_monitor_vdev_delete(ar);
		return ret;
	}

	ar->monitor_started = true;
	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor started\n");

	return 0;
}

static void ath10k_monitor_stop(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	if (ath10k_monitor_is_enabled(ar)) {
		ath10k_dbg(ATH10K_DBG_MAC,
			   "mac monitor will be stopped later\n");
		return;
	}

	if (!ar->monitor_started) {
		ath10k_dbg(ATH10K_DBG_MAC,
			   "mac monitor probably failed to start earlier\n");
		return;
	}

	ret = ath10k_monitor_vdev_stop(ar);
	if (ret)
		ath10k_warn("failed to stop monitor vdev: %d\n", ret);

	ret = ath10k_monitor_vdev_delete(ar);
	if (ret)
		ath10k_warn("failed to delete monitor vdev: %d\n", ret);

	ar->monitor_started = false;
	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor stopped\n");
}

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static int ath10k_recalc_rtscts_prot(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 vdev_param, rts_cts = 0;

	lockdep_assert_held(&ar->conf_mutex);

	vdev_param = ar->wmi.vdev_param->enable_rtscts;

	if (arvif->use_cts_prot || arvif->num_legacy_stations > 0)
		rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);

	if (arvif->num_legacy_stations > 0)
		rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
			      WMI_RTSCTS_PROFILE);

	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
					 rts_cts);
}

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static int ath10k_start_cac(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);

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	ret = ath10k_monitor_start(ar);
739
	if (ret) {
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		ath10k_warn("failed to start monitor (cac): %d\n", ret);
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		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
		return ret;
	}

	ath10k_dbg(ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
		   ar->monitor_vdev_id);

	return 0;
}

static int ath10k_stop_cac(struct ath10k *ar)
{
	lockdep_assert_held(&ar->conf_mutex);

	/* CAC is not running - do nothing */
	if (!test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags))
		return 0;

	clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
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	ath10k_monitor_stop(ar);
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	ath10k_dbg(ATH10K_DBG_MAC, "mac cac finished\n");

	return 0;
}

767
static void ath10k_recalc_radar_detection(struct ath10k *ar)
768 769 770 771 772 773 774
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ath10k_stop_cac(ar);

775
	if (!ar->radar_enabled)
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		return;

778
	if (ar->num_started_vdevs > 0)
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		return;

	ret = ath10k_start_cac(ar);
	if (ret) {
		/*
		 * Not possible to start CAC on current channel so starting
		 * radiation is not allowed, make this channel DFS_UNAVAILABLE
		 * by indicating that radar was detected.
		 */
788
		ath10k_warn("failed to start CAC: %d\n", ret);
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		ieee80211_radar_detected(ar->hw);
	}
}

793
static int ath10k_vdev_start_restart(struct ath10k_vif *arvif, bool restart)
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{
	struct ath10k *ar = arvif->ar;
	struct cfg80211_chan_def *chandef = &ar->chandef;
	struct wmi_vdev_start_request_arg arg = {};
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	reinit_completion(&ar->vdev_setup_done);

	arg.vdev_id = arvif->vdev_id;
	arg.dtim_period = arvif->dtim_period;
	arg.bcn_intval = arvif->beacon_interval;

	arg.channel.freq = chandef->chan->center_freq;
	arg.channel.band_center_freq1 = chandef->center_freq1;
	arg.channel.mode = chan_to_phymode(chandef);

	arg.channel.min_power = 0;
	arg.channel.max_power = chandef->chan->max_power * 2;
	arg.channel.max_reg_power = chandef->chan->max_reg_power * 2;
	arg.channel.max_antenna_gain = chandef->chan->max_antenna_gain * 2;

	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
		arg.ssid = arvif->u.ap.ssid;
		arg.ssid_len = arvif->u.ap.ssid_len;
		arg.hidden_ssid = arvif->u.ap.hidden_ssid;

		/* For now allow DFS for AP mode */
		arg.channel.chan_radar =
			!!(chandef->chan->flags & IEEE80211_CHAN_RADAR);
	} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
		arg.ssid = arvif->vif->bss_conf.ssid;
		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
	}

	ath10k_dbg(ATH10K_DBG_MAC,
		   "mac vdev %d start center_freq %d phymode %s\n",
		   arg.vdev_id, arg.channel.freq,
		   ath10k_wmi_phymode_str(arg.channel.mode));

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	if (restart)
		ret = ath10k_wmi_vdev_restart(ar, &arg);
	else
		ret = ath10k_wmi_vdev_start(ar, &arg);

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	if (ret) {
		ath10k_warn("failed to start WMI vdev %i: %d\n",
			    arg.vdev_id, ret);
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
		ath10k_warn("failed to synchronise setup for vdev %i: %d\n",
			    arg.vdev_id, ret);
		return ret;
	}

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	ar->num_started_vdevs++;
	ath10k_recalc_radar_detection(ar);

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	return ret;
}

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static int ath10k_vdev_start(struct ath10k_vif *arvif)
{
	return ath10k_vdev_start_restart(arvif, false);
}

static int ath10k_vdev_restart(struct ath10k_vif *arvif)
{
	return ath10k_vdev_start_restart(arvif, true);
}

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static int ath10k_vdev_stop(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	reinit_completion(&ar->vdev_setup_done);

	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
	if (ret) {
		ath10k_warn("failed to stop WMI vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
		ath10k_warn("failed to syncronise setup for vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

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	WARN_ON(ar->num_started_vdevs == 0);

	if (ar->num_started_vdevs != 0) {
		ar->num_started_vdevs--;
		ath10k_recalc_radar_detection(ar);
	}

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	return ret;
}

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static void ath10k_control_beaconing(struct ath10k_vif *arvif,
				struct ieee80211_bss_conf *info)
{
	int ret = 0;

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	lockdep_assert_held(&arvif->ar->conf_mutex);

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	if (!info->enable_beacon) {
		ath10k_vdev_stop(arvif);
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		arvif->is_started = false;
		arvif->is_up = false;

915 916
		spin_lock_bh(&arvif->ar->data_lock);
		if (arvif->beacon) {
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			dma_unmap_single(arvif->ar->dev,
					 ATH10K_SKB_CB(arvif->beacon)->paddr,
					 arvif->beacon->len, DMA_TO_DEVICE);
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			dev_kfree_skb_any(arvif->beacon);

			arvif->beacon = NULL;
			arvif->beacon_sent = false;
		}
		spin_unlock_bh(&arvif->ar->data_lock);

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		return;
	}

	arvif->tx_seq_no = 0x1000;

	ret = ath10k_vdev_start(arvif);
	if (ret)
		return;

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	arvif->aid = 0;
	memcpy(arvif->bssid, info->bssid, ETH_ALEN);

	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
				 arvif->bssid);
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	if (ret) {
942
		ath10k_warn("failed to bring up vdev %d: %i\n",
943
			    arvif->vdev_id, ret);
944
		ath10k_vdev_stop(arvif);
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		return;
	}
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	arvif->is_started = true;
	arvif->is_up = true;

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	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
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}

static void ath10k_control_ibss(struct ath10k_vif *arvif,
				struct ieee80211_bss_conf *info,
				const u8 self_peer[ETH_ALEN])
{
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	u32 vdev_param;
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	int ret = 0;

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	lockdep_assert_held(&arvif->ar->conf_mutex);

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	if (!info->ibss_joined) {
		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
		if (ret)
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			ath10k_warn("failed to delete IBSS self peer %pM for vdev %d: %d\n",
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				    self_peer, arvif->vdev_id, ret);

969
		if (is_zero_ether_addr(arvif->bssid))
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			return;

		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id,
973
					 arvif->bssid);
974
		if (ret) {
975
			ath10k_warn("failed to delete IBSS BSSID peer %pM for vdev %d: %d\n",
976
				    arvif->bssid, arvif->vdev_id, ret);
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			return;
		}

980
		memset(arvif->bssid, 0, ETH_ALEN);
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		return;
	}

	ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer);
	if (ret) {
987
		ath10k_warn("failed to create IBSS self peer %pM for vdev %d: %d\n",
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			    self_peer, arvif->vdev_id, ret);
		return;
	}

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	vdev_param = arvif->ar->wmi.vdev_param->atim_window;
	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
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					ATH10K_DEFAULT_ATIM);
	if (ret)
996
		ath10k_warn("failed to set IBSS ATIM for vdev %d: %d\n",
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			    arvif->vdev_id, ret);
}

/*
 * Review this when mac80211 gains per-interface powersave support.
 */
1003
static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1004
{
1005 1006
	struct ath10k *ar = arvif->ar;
	struct ieee80211_conf *conf = &ar->hw->conf;
1007 1008 1009 1010
	enum wmi_sta_powersave_param param;
	enum wmi_sta_ps_mode psmode;
	int ret;

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	lockdep_assert_held(&arvif->ar->conf_mutex);

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	if (arvif->vif->type != NL80211_IFTYPE_STATION)
		return 0;
1015 1016 1017 1018 1019

	if (conf->flags & IEEE80211_CONF_PS) {
		psmode = WMI_STA_PS_MODE_ENABLED;
		param = WMI_STA_PS_PARAM_INACTIVITY_TIME;

1020
		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1021 1022
						  conf->dynamic_ps_timeout);
		if (ret) {
1023
			ath10k_warn("failed to set inactivity time for vdev %d: %i\n",
1024
				    arvif->vdev_id, ret);
1025
			return ret;
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		}
	} else {
		psmode = WMI_STA_PS_MODE_DISABLED;
	}

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	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
		   arvif->vdev_id, psmode ? "enable" : "disable");

1034 1035
	ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
	if (ret) {
1036 1037
		ath10k_warn("failed to set PS Mode %d for vdev %d: %d\n",
			    psmode, arvif->vdev_id, ret);
1038 1039 1040 1041
		return ret;
	}

	return 0;
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}

/**********************/
/* Station management */
/**********************/

static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
				      struct ath10k_vif *arvif,
				      struct ieee80211_sta *sta,
				      struct ieee80211_bss_conf *bss_conf,
				      struct wmi_peer_assoc_complete_arg *arg)
{
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	lockdep_assert_held(&ar->conf_mutex);

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	memcpy(arg->addr, sta->addr, ETH_ALEN);
	arg->vdev_id = arvif->vdev_id;
	arg->peer_aid = sta->aid;
	arg->peer_flags |= WMI_PEER_AUTH;

	if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
		/*
		 * Seems FW have problems with Power Save in STA
		 * mode when we setup this parameter to high (eg. 5).
		 * Often we see that FW don't send NULL (with clean P flags)
		 * frame even there is info about buffered frames in beacons.
		 * Sometimes we have to wait more than 10 seconds before FW
		 * will wakeup. Often sending one ping from AP to our device
		 * just fail (more than 50%).
		 *
		 * Seems setting this FW parameter to 1 couse FW
		 * will check every beacon and will wakup immediately
		 * after detection buffered data.
		 */
		arg->peer_listen_intval = 1;
	else
		arg->peer_listen_intval = ar->hw->conf.listen_interval;

	arg->peer_num_spatial_streams = 1;

	/*
	 * The assoc capabilities are available only in managed mode.
	 */
	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && bss_conf)
		arg->peer_caps = bss_conf->assoc_capability;
}

static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
				       struct ath10k_vif *arvif,
				       struct wmi_peer_assoc_complete_arg *arg)
{
	struct ieee80211_vif *vif = arvif->vif;
	struct ieee80211_bss_conf *info = &vif->bss_conf;
	struct cfg80211_bss *bss;
	const u8 *rsnie = NULL;
	const u8 *wpaie = NULL;

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	lockdep_assert_held(&ar->conf_mutex);

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	bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
			       info->bssid, NULL, 0, 0, 0);
	if (bss) {
		const struct cfg80211_bss_ies *ies;

		rcu_read_lock();
		rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);

		ies = rcu_dereference(bss->ies);

		wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
				WLAN_OUI_TYPE_MICROSOFT_WPA,
				ies->data,
				ies->len);
		rcu_read_unlock();
		cfg80211_put_bss(ar->hw->wiphy, bss);
	}

	/* FIXME: base on RSN IE/WPA IE is a correct idea? */
	if (rsnie || wpaie) {
		ath10k_dbg(ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
		arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
	}

	if (wpaie) {
		ath10k_dbg(ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
		arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
	}
}

static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
				      struct ieee80211_sta *sta,
				      struct wmi_peer_assoc_complete_arg *arg)
{
	struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
	const struct ieee80211_supported_band *sband;
	const struct ieee80211_rate *rates;
	u32 ratemask;
	int i;

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	lockdep_assert_held(&ar->conf_mutex);

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	sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
	ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
	rates = sband->bitrates;

	rateset->num_rates = 0;

	for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
		if (!(ratemask & 1))
			continue;

		rateset->rates[rateset->num_rates] = rates->hw_value;
		rateset->num_rates++;
	}
}

static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
				   struct ieee80211_sta *sta,
				   struct wmi_peer_assoc_complete_arg *arg)
{
	const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
	int i, n;

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	lockdep_assert_held(&ar->conf_mutex);

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	if (!ht_cap->ht_supported)
		return;

	arg->peer_flags |= WMI_PEER_HT;
	arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
				    ht_cap->ampdu_factor)) - 1;

	arg->peer_mpdu_density =
		ath10k_parse_mpdudensity(ht_cap->ampdu_density);

	arg->peer_ht_caps = ht_cap->cap;
	arg->peer_rate_caps |= WMI_RC_HT_FLAG;

	if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
		arg->peer_flags |= WMI_PEER_LDPC;

	if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
		arg->peer_flags |= WMI_PEER_40MHZ;
		arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
	}

	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
		arg->peer_rate_caps |= WMI_RC_SGI_FLAG;

	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
		arg->peer_rate_caps |= WMI_RC_SGI_FLAG;

	if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
		arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
		arg->peer_flags |= WMI_PEER_STBC;
	}

	if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
		u32 stbc;
		stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
		stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
		stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
		arg->peer_rate_caps |= stbc;
		arg->peer_flags |= WMI_PEER_STBC;
	}

	if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
		arg->peer_rate_caps |= WMI_RC_TS_FLAG;
	else if (ht_cap->mcs.rx_mask[1])
		arg->peer_rate_caps |= WMI_RC_DS_FLAG;

	for (i = 0, n = 0; i < IEEE80211_HT_MCS_MASK_LEN*8; i++)
		if (ht_cap->mcs.rx_mask[i/8] & (1 << i%8))
			arg->peer_ht_rates.rates[n++] = i;

1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232
	/*
	 * This is a workaround for HT-enabled STAs which break the spec
	 * and have no HT capabilities RX mask (no HT RX MCS map).
	 *
	 * As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
	 * MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.
	 *
	 * Firmware asserts if such situation occurs.
	 */
	if (n == 0) {
		arg->peer_ht_rates.num_rates = 8;
		for (i = 0; i < arg->peer_ht_rates.num_rates; i++)
			arg->peer_ht_rates.rates[i] = i;
	} else {
		arg->peer_ht_rates.num_rates = n;
		arg->peer_num_spatial_streams = sta->rx_nss;
	}
1233

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1234 1235
	ath10k_dbg(ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
		   arg->addr,
1236 1237 1238 1239
		   arg->peer_ht_rates.num_rates,
		   arg->peer_num_spatial_streams);
}

1240 1241 1242
static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
				    struct ath10k_vif *arvif,
				    struct ieee80211_sta *sta)
1243 1244 1245
{
	u32 uapsd = 0;
	u32 max_sp = 0;
1246
	int ret = 0;
1247

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1248 1249
	lockdep_assert_held(&ar->conf_mutex);

1250
	if (sta->wme && sta->uapsd_queues) {
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1251
		ath10k_dbg(ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270
			   sta->uapsd_queues, sta->max_sp);

		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
			uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
				 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
			uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
				 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
			uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
				 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
			uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
				 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;


		if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
			max_sp = sta->max_sp;

1271 1272 1273 1274 1275
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
						 sta->addr,
						 WMI_AP_PS_PEER_PARAM_UAPSD,
						 uapsd);
		if (ret) {
1276 1277
			ath10k_warn("failed to set ap ps peer param uapsd for vdev %i: %d\n",
				    arvif->vdev_id, ret);
1278 1279
			return ret;
		}
1280

1281 1282 1283 1284 1285
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
						 sta->addr,
						 WMI_AP_PS_PEER_PARAM_MAX_SP,
						 max_sp);
		if (ret) {
1286 1287
			ath10k_warn("failed to set ap ps peer param max sp for vdev %i: %d\n",
				    arvif->vdev_id, ret);
1288 1289
			return ret;
		}
1290 1291 1292 1293 1294

		/* TODO setup this based on STA listen interval and
		   beacon interval. Currently we don't know
		   sta->listen_interval - mac80211 patch required.
		   Currently use 10 seconds */
1295 1296 1297
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
					WMI_AP_PS_PEER_PARAM_AGEOUT_TIME, 10);
		if (ret) {
1298 1299
			ath10k_warn("failed to set ap ps peer param ageout time for vdev %i: %d\n",
				    arvif->vdev_id, ret);
1300 1301
			return ret;
		}
1302 1303
	}

1304
	return 0;
1305 1306 1307 1308 1309 1310 1311
}

static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
				    struct ieee80211_sta *sta,
				    struct wmi_peer_assoc_complete_arg *arg)
{
	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
1312
	u8 ampdu_factor;
1313 1314 1315 1316 1317 1318 1319

	if (!vht_cap->vht_supported)
		return;

	arg->peer_flags |= WMI_PEER_VHT;
	arg->peer_vht_caps = vht_cap->cap;

1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332

	ampdu_factor = (vht_cap->cap &
			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
		       IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;

	/* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
	 * zero in VHT IE. Using it would result in degraded throughput.
	 * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
	 * it if VHT max_mpdu is smaller. */
	arg->peer_max_mpdu = max(arg->peer_max_mpdu,
				 (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
					ampdu_factor)) - 1);

1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344
	if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
		arg->peer_flags |= WMI_PEER_80MHZ;

	arg->peer_vht_rates.rx_max_rate =
		__le16_to_cpu(vht_cap->vht_mcs.rx_highest);
	arg->peer_vht_rates.rx_mcs_set =
		__le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
	arg->peer_vht_rates.tx_max_rate =
		__le16_to_cpu(vht_cap->vht_mcs.tx_highest);
	arg->peer_vht_rates.tx_mcs_set =
		__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);

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	ath10k_dbg(ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
		   sta->addr, arg->peer_max_mpdu, arg->peer_flags);
1347 1348 1349 1350 1351 1352 1353 1354 1355 1356
}

static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
				    struct ath10k_vif *arvif,
				    struct ieee80211_sta *sta,
				    struct ieee80211_bss_conf *bss_conf,
				    struct wmi_peer_assoc_complete_arg *arg)
{
	switch (arvif->vdev_type) {
	case WMI_VDEV_TYPE_AP:
1357 1358 1359 1360 1361 1362 1363
		if (sta->wme)
			arg->peer_flags |= WMI_PEER_QOS;

		if (sta->wme && sta->uapsd_queues) {
			arg->peer_flags |= WMI_PEER_APSD;
			arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
		}
1364 1365
		break;
	case WMI_VDEV_TYPE_STA:
1366 1367
		if (bss_conf->qos)
			arg->peer_flags |= WMI_PEER_QOS;
1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393
		break;
	default:
		break;
	}
}

static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
					struct ath10k_vif *arvif,
					struct ieee80211_sta *sta,
					struct wmi_peer_assoc_complete_arg *arg)
{
	enum wmi_phy_mode phymode = MODE_UNKNOWN;

	switch (ar->hw->conf.chandef.chan->band) {
	case IEEE80211_BAND_2GHZ:
		if (sta->ht_cap.ht_supported) {
			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11NG_HT40;
			else
				phymode = MODE_11NG_HT20;
		} else {
			phymode = MODE_11G;
		}

		break;
	case IEEE80211_BAND_5GHZ:
1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404
		/*
		 * Check VHT first.
		 */
		if (sta->vht_cap.vht_supported) {
			if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
				phymode = MODE_11AC_VHT80;
			else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11AC_VHT40;
			else if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
				phymode = MODE_11AC_VHT20;
		} else if (sta->ht_cap.ht_supported) {
1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417
			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11NA_HT40;
			else
				phymode = MODE_11NA_HT20;
		} else {
			phymode = MODE_11A;
		}

		break;
	default:
		break;
	}

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	ath10k_dbg(ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
		   sta->addr, ath10k_wmi_phymode_str(phymode));
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1421 1422 1423 1424
	arg->peer_phymode = phymode;
	WARN_ON(phymode == MODE_UNKNOWN);
}

1425 1426 1427 1428 1429
static int ath10k_peer_assoc_prepare(struct ath10k *ar,
				     struct ath10k_vif *arvif,
				     struct ieee80211_sta *sta,
				     struct ieee80211_bss_conf *bss_conf,
				     struct wmi_peer_assoc_complete_arg *arg)
1430
{
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	lockdep_assert_held(&ar->conf_mutex);

1433
	memset(arg, 0, sizeof(*arg));
1434

1435 1436 1437 1438 1439 1440 1441
	ath10k_peer_assoc_h_basic(ar, arvif, sta, bss_conf, arg);
	ath10k_peer_assoc_h_crypto(ar, arvif, arg);
	ath10k_peer_assoc_h_rates(ar, sta, arg);
	ath10k_peer_assoc_h_ht(ar, sta, arg);
	ath10k_peer_assoc_h_vht(ar, sta, arg);
	ath10k_peer_assoc_h_qos(ar, arvif, sta, bss_conf, arg);
	ath10k_peer_assoc_h_phymode(ar, arvif, sta, arg);
1442

1443
	return 0;
1444 1445
}

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static const u32 ath10k_smps_map[] = {
	[WLAN_HT_CAP_SM_PS_STATIC] = WMI_PEER_SMPS_STATIC,
	[WLAN_HT_CAP_SM_PS_DYNAMIC] = WMI_PEER_SMPS_DYNAMIC,
	[WLAN_HT_CAP_SM_PS_INVALID] = WMI_PEER_SMPS_PS_NONE,
	[WLAN_HT_CAP_SM_PS_DISABLED] = WMI_PEER_SMPS_PS_NONE,
};

static int ath10k_setup_peer_smps(struct ath10k *ar, struct ath10k_vif *arvif,
				  const u8 *addr,
				  const struct ieee80211_sta_ht_cap *ht_cap)
{
	int smps;

	if (!ht_cap->ht_supported)
		return 0;

	smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
	smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;

	if (smps >= ARRAY_SIZE(ath10k_smps_map))
		return -EINVAL;

	return ath10k_wmi_peer_set_param(ar, arvif->vdev_id, addr,
					 WMI_PEER_SMPS_STATE,
					 ath10k_smps_map[smps]);
}

1473 1474 1475 1476 1477 1478 1479
/* can be called only in mac80211 callbacks due to `key_count` usage */
static void ath10k_bss_assoc(struct ieee80211_hw *hw,
			     struct ieee80211_vif *vif,
			     struct ieee80211_bss_conf *bss_conf)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
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	struct ieee80211_sta_ht_cap ht_cap;
1481
	struct wmi_peer_assoc_complete_arg peer_arg;
1482 1483 1484
	struct ieee80211_sta *ap_sta;
	int ret;

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	lockdep_assert_held(&ar->conf_mutex);

1487 1488 1489 1490
	rcu_read_lock();

	ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
	if (!ap_sta) {
1491
		ath10k_warn("failed to find station entry for bss %pM vdev %i\n",
1492
			    bss_conf->bssid, arvif->vdev_id);
1493 1494 1495 1496
		rcu_read_unlock();
		return;
	}

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	/* ap_sta must be accessed only within rcu section which must be left
	 * before calling ath10k_setup_peer_smps() which might sleep. */
	ht_cap = ap_sta->ht_cap;

1501 1502
	ret = ath10k_peer_assoc_prepare(ar, arvif, ap_sta,
					bss_conf, &peer_arg);
1503
	if (ret) {
1504
		ath10k_warn("failed to prepare peer assoc for %pM vdev %i: %d\n",
1505
			    bss_conf->bssid, arvif->vdev_id, ret);
1506 1507 1508 1509 1510 1511
		rcu_read_unlock();
		return;
	}

	rcu_read_unlock();

1512 1513
	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
	if (ret) {
1514
		ath10k_warn("failed to run peer assoc for %pM vdev %i: %d\n",
1515
			    bss_conf->bssid, arvif->vdev_id, ret);
1516 1517 1518
		return;
	}

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	ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
	if (ret) {
1521 1522
		ath10k_warn("failed to setup peer SMPS for vdev %i: %d\n",
			    arvif->vdev_id, ret);
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		return;
	}

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	ath10k_dbg(ATH10K_DBG_MAC,
		   "mac vdev %d up (associated) bssid %pM aid %d\n",
		   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);

1530 1531 1532 1533 1534
	arvif->aid = bss_conf->aid;
	memcpy(arvif->bssid, bss_conf->bssid, ETH_ALEN);

	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
	if (ret) {
1535
		ath10k_warn("failed to set vdev %d up: %d\n",
1536
			    arvif->vdev_id, ret);
1537 1538 1539 1540
		return;
	}

	arvif->is_up = true;
1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552
}

/*
 * FIXME: flush TIDs
 */
static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
				struct ieee80211_vif *vif)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	int ret;

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	lockdep_assert_held(&ar->conf_mutex);

1555 1556 1557 1558 1559 1560
	/*
	 * For some reason, calling VDEV-DOWN before VDEV-STOP
	 * makes the FW to send frames via HTT after disassociation.
	 * No idea why this happens, even though VDEV-DOWN is supposed
	 * to be analogous to link down, so just stop the VDEV.
	 */
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	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d stop (disassociated\n",
		   arvif->vdev_id);

	/* FIXME: check return value */
1565 1566 1567 1568 1569 1570 1571 1572 1573
	ret = ath10k_vdev_stop(arvif);

	/*
	 * If we don't call VDEV-DOWN after VDEV-STOP FW will remain active and
	 * report beacons from previously associated network through HTT.
	 * This in turn would spam mac80211 WARN_ON if we bring down all
	 * interfaces as it expects there is no rx when no interface is
	 * running.
	 */
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	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d down\n", arvif->vdev_id);

	/* FIXME: why don't we print error if wmi call fails? */
1577 1578
	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);

1579
	arvif->def_wep_key_idx = 0;
1580 1581 1582

	arvif->is_started = false;
	arvif->is_up = false;
1583 1584 1585
}

static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
1586
				struct ieee80211_sta *sta, bool reassoc)
1587
{
1588
	struct wmi_peer_assoc_complete_arg peer_arg;
1589 1590
	int ret = 0;

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	lockdep_assert_held(&ar->conf_mutex);

1593 1594
	ret = ath10k_peer_assoc_prepare(ar, arvif, sta, NULL, &peer_arg);
	if (ret) {
1595
		ath10k_warn("failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
1596
			    sta->addr, arvif->vdev_id, ret);
1597 1598 1599
		return ret;
	}

1600
	peer_arg.peer_reassoc = reassoc;
1601
	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
1602
	if (ret) {
1603
		ath10k_warn("failed to run peer assoc for STA %pM vdev %i: %d\n",
1604
			    sta->addr, arvif->vdev_id, ret);
1605 1606 1607
		return ret;
	}

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	ret = ath10k_setup_peer_smps(ar, arvif, sta->addr, &sta->ht_cap);
	if (ret) {
1610 1611
		ath10k_warn("failed to setup peer SMPS for vdev %d: %d\n",
			    arvif->vdev_id, ret);
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		return ret;
	}

1615 1616 1617 1618 1619 1620 1621 1622 1623 1624
	if (!sta->wme) {
		arvif->num_legacy_stations++;
		ret  = ath10k_recalc_rtscts_prot(arvif);
		if (ret) {
			ath10k_warn("failed to recalculate rts/cts prot for vdev %d: %d\n",
				    arvif->vdev_id, ret);
			return ret;
		}
	}

1625 1626
	ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
	if (ret) {
1627
		ath10k_warn("failed to install peer wep keys for vdev %i: %d\n",
1628
			    arvif->vdev_id, ret);
1629 1630 1631
		return ret;
	}

1632 1633
	ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
	if (ret) {
1634
		ath10k_warn("failed to set qos params for STA %pM for vdev %i: %d\n",
1635
			    sta->addr, arvif->vdev_id, ret);
1636 1637 1638
		return ret;
	}

1639 1640 1641 1642 1643 1644 1645 1646
	return ret;
}

static int ath10k_station_disassoc(struct ath10k *ar, struct ath10k_vif *arvif,
				   struct ieee80211_sta *sta)
{
	int ret = 0;

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	lockdep_assert_held(&ar->conf_mutex);

1649 1650 1651 1652 1653 1654 1655 1656 1657 1658
	if (!sta->wme) {
		arvif->num_legacy_stations--;
		ret = ath10k_recalc_rtscts_prot(arvif);
		if (ret) {
			ath10k_warn("failed to recalculate rts/cts prot for vdev %d: %d\n",
				    arvif->vdev_id, ret);
			return ret;
		}
	}

1659 1660
	ret = ath10k_clear_peer_keys(arvif, sta->addr);
	if (ret) {
1661
		ath10k_warn("failed to clear all peer wep keys for vdev %i: %d\n",
1662
			    arvif->vdev_id, ret);
1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685
		return ret;
	}

	return ret;
}

/**************/
/* Regulatory */
/**************/

static int ath10k_update_channel_list(struct ath10k *ar)
{
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_supported_band **bands;
	enum ieee80211_band band;
	struct ieee80211_channel *channel;
	struct wmi_scan_chan_list_arg arg = {0};
	struct wmi_channel_arg *ch;
	bool passive;
	int len;
	int ret;
	int i;

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	lockdep_assert_held(&ar->conf_mutex);

1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723
	bands = hw->wiphy->bands;
	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
		if (!bands[band])
			continue;

		for (i = 0; i < bands[band]->n_channels; i++) {
			if (bands[band]->channels[i].flags &
			    IEEE80211_CHAN_DISABLED)
				continue;

			arg.n_channels++;
		}
	}

	len = sizeof(struct wmi_channel_arg) * arg.n_channels;
	arg.channels = kzalloc(len, GFP_KERNEL);
	if (!arg.channels)
		return -ENOMEM;

	ch = arg.channels;
	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
		if (!bands[band])
			continue;

		for (i = 0; i < bands[band]->n_channels; i++) {
			channel = &bands[band]->channels[i];

			if (channel->flags & IEEE80211_CHAN_DISABLED)
				continue;

			ch->allow_ht   = true;

			/* FIXME: when should we really allow VHT? */
			ch->allow_vht = true;

			ch->allow_ibss =
1724
				!(channel->flags & IEEE80211_CHAN_NO_IR);
1725 1726 1727 1728

			ch->ht40plus =
				!(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);

1729 1730 1731
			ch->chan_radar =
				!!(channel->flags & IEEE80211_CHAN_RADAR);

1732
			passive = channel->flags & IEEE80211_CHAN_NO_IR;
1733 1734 1735
			ch->passive = passive;

			ch->freq = channel->center_freq;
1736
			ch->min_power = 0;
M
Michal Kazior 已提交
1737 1738 1739
			ch->max_power = channel->max_power * 2;
			ch->max_reg_power = channel->max_reg_power * 2;
			ch->max_antenna_gain = channel->max_antenna_gain * 2;
1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753
			ch->reg_class_id = 0; /* FIXME */

			/* FIXME: why use only legacy modes, why not any
			 * HT/VHT modes? Would that even make any
			 * difference? */
			if (channel->band == IEEE80211_BAND_2GHZ)
				ch->mode = MODE_11G;
			else
				ch->mode = MODE_11A;

			if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
				continue;

			ath10k_dbg(ATH10K_DBG_WMI,
K
Kalle Valo 已提交
1754 1755
				   "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
				    ch - arg.channels, arg.n_channels,
1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768
				   ch->freq, ch->max_power, ch->max_reg_power,
				   ch->max_antenna_gain, ch->mode);

			ch++;
		}
	}

	ret = ath10k_wmi_scan_chan_list(ar, &arg);
	kfree(arg.channels);

	return ret;
}

1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784
static enum wmi_dfs_region
ath10k_mac_get_dfs_region(enum nl80211_dfs_regions dfs_region)
{
	switch (dfs_region) {
	case NL80211_DFS_UNSET:
		return WMI_UNINIT_DFS_DOMAIN;
	case NL80211_DFS_FCC:
		return WMI_FCC_DFS_DOMAIN;
	case NL80211_DFS_ETSI:
		return WMI_ETSI_DFS_DOMAIN;
	case NL80211_DFS_JP:
		return WMI_MKK4_DFS_DOMAIN;
	}
	return WMI_UNINIT_DFS_DOMAIN;
}

1785
static void ath10k_regd_update(struct ath10k *ar)
1786 1787 1788
{
	struct reg_dmn_pair_mapping *regpair;
	int ret;
1789 1790
	enum wmi_dfs_region wmi_dfs_reg;
	enum nl80211_dfs_regions nl_dfs_reg;
1791

1792
	lockdep_assert_held(&ar->conf_mutex);
1793 1794 1795

	ret = ath10k_update_channel_list(ar);
	if (ret)
1796
		ath10k_warn("failed to update channel list: %d\n", ret);
1797 1798

	regpair = ar->ath_common.regulatory.regpair;
1799

1800 1801 1802 1803 1804 1805 1806
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
		nl_dfs_reg = ar->dfs_detector->region;
		wmi_dfs_reg = ath10k_mac_get_dfs_region(nl_dfs_reg);
	} else {
		wmi_dfs_reg = WMI_UNINIT_DFS_DOMAIN;
	}

1807 1808 1809
	/* Target allows setting up per-band regdomain but ath_common provides
	 * a combined one only */
	ret = ath10k_wmi_pdev_set_regdomain(ar,
1810 1811 1812
					    regpair->reg_domain,
					    regpair->reg_domain, /* 2ghz */
					    regpair->reg_domain, /* 5ghz */
1813
					    regpair->reg_2ghz_ctl,
1814 1815
					    regpair->reg_5ghz_ctl,
					    wmi_dfs_reg);
1816
	if (ret)
1817
		ath10k_warn("failed to set pdev regdomain: %d\n", ret);
1818
}
M
Michal Kazior 已提交
1819

1820 1821 1822 1823 1824
static void ath10k_reg_notifier(struct wiphy *wiphy,
				struct regulatory_request *request)
{
	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
	struct ath10k *ar = hw->priv;
J
Janusz Dziedzic 已提交
1825
	bool result;
1826 1827 1828

	ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);

J
Janusz Dziedzic 已提交
1829 1830 1831 1832 1833 1834
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
		ath10k_dbg(ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
			   request->dfs_region);
		result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
							  request->dfs_region);
		if (!result)
1835
			ath10k_warn("DFS region 0x%X not supported, will trigger radar for every pulse\n",
J
Janusz Dziedzic 已提交
1836 1837 1838
				    request->dfs_region);
	}

1839 1840 1841
	mutex_lock(&ar->conf_mutex);
	if (ar->state == ATH10K_STATE_ON)
		ath10k_regd_update(ar);
M
Michal Kazior 已提交
1842
	mutex_unlock(&ar->conf_mutex);
1843 1844 1845 1846 1847 1848
}

/***************/
/* TX handlers */
/***************/

1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862
static u8 ath10k_tx_h_get_tid(struct ieee80211_hdr *hdr)
{
	if (ieee80211_is_mgmt(hdr->frame_control))
		return HTT_DATA_TX_EXT_TID_MGMT;

	if (!ieee80211_is_data_qos(hdr->frame_control))
		return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;

	if (!is_unicast_ether_addr(ieee80211_get_DA(hdr)))
		return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;

	return ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
}

1863 1864 1865 1866 1867 1868
static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar,
				  struct ieee80211_tx_info *info)
{
	if (info->control.vif)
		return ath10k_vif_to_arvif(info->control.vif)->vdev_id;

M
Michal Kazior 已提交
1869
	if (ar->monitor_started)
1870 1871
		return ar->monitor_vdev_id;

1872
	ath10k_warn("failed to resolve vdev id\n");
1873 1874 1875
	return 0;
}

M
Michal Kazior 已提交
1876 1877
/* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
 * Control in the header.
1878
 */
M
Michal Kazior 已提交
1879
static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
1880 1881
{
	struct ieee80211_hdr *hdr = (void *)skb->data;
1882
	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
1883 1884 1885 1886 1887 1888
	u8 *qos_ctl;

	if (!ieee80211_is_data_qos(hdr->frame_control))
		return;

	qos_ctl = ieee80211_get_qos_ctl(hdr);
1889 1890 1891
	memmove(skb->data + IEEE80211_QOS_CTL_LEN,
		skb->data, (void *)qos_ctl - (void *)skb->data);
	skb_pull(skb, IEEE80211_QOS_CTL_LEN);
1892 1893 1894 1895 1896 1897 1898 1899 1900 1901

	/* Fw/Hw generates a corrupted QoS Control Field for QoS NullFunc
	 * frames. Powersave is handled by the fw/hw so QoS NyllFunc frames are
	 * used only for CQM purposes (e.g. hostapd station keepalive ping) so
	 * it is safe to downgrade to NullFunc.
	 */
	if (ieee80211_is_qos_nullfunc(hdr->frame_control)) {
		hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
		cb->htt.tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
	}
1902 1903
}

1904 1905 1906 1907 1908 1909
static void ath10k_tx_wep_key_work(struct work_struct *work)
{
	struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
						wep_key_work);
	int ret, keyidx = arvif->def_wep_key_newidx;

M
Michal Kazior 已提交
1910 1911 1912 1913 1914
	mutex_lock(&arvif->ar->conf_mutex);

	if (arvif->ar->state != ATH10K_STATE_ON)
		goto unlock;

1915
	if (arvif->def_wep_key_idx == keyidx)
M
Michal Kazior 已提交
1916
		goto unlock;
1917 1918 1919 1920 1921 1922 1923 1924 1925

	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
		   arvif->vdev_id, keyidx);

	ret = ath10k_wmi_vdev_set_param(arvif->ar,
					arvif->vdev_id,
					arvif->ar->wmi.vdev_param->def_keyid,
					keyidx);
	if (ret) {
1926 1927 1928
		ath10k_warn("failed to update wep key index for vdev %d: %d\n",
			    arvif->vdev_id,
			    ret);
M
Michal Kazior 已提交
1929
		goto unlock;
1930 1931 1932
	}

	arvif->def_wep_key_idx = keyidx;
M
Michal Kazior 已提交
1933 1934 1935

unlock:
	mutex_unlock(&arvif->ar->conf_mutex);
1936 1937
}

M
Michal Kazior 已提交
1938 1939 1940
static void ath10k_tx_h_update_wep_key(struct ieee80211_vif *vif,
				       struct ieee80211_key_conf *key,
				       struct sk_buff *skb)
1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct ath10k *ar = arvif->ar;
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;

	if (!ieee80211_has_protected(hdr->frame_control))
		return;

	if (!key)
		return;

	if (key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
	    key->cipher != WLAN_CIPHER_SUITE_WEP104)
		return;

1956
	if (key->keyidx == arvif->def_wep_key_idx)
1957 1958
		return;

1959 1960 1961 1962 1963
	/* FIXME: Most likely a few frames will be TXed with an old key. Simply
	 * queueing frames until key index is updated is not an option because
	 * sk_buff may need more processing to be done, e.g. offchannel */
	arvif->def_wep_key_newidx = key->keyidx;
	ieee80211_queue_work(ar->hw, &arvif->wep_key_work);
1964 1965
}

M
Michal Kazior 已提交
1966 1967 1968
static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
				       struct ieee80211_vif *vif,
				       struct sk_buff *skb)
1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992
{
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

	/* This is case only for P2P_GO */
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP ||
	    arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
		return;

	if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
		spin_lock_bh(&ar->data_lock);
		if (arvif->u.ap.noa_data)
			if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
					      GFP_ATOMIC))
				memcpy(skb_put(skb, arvif->u.ap.noa_len),
				       arvif->u.ap.noa_data,
				       arvif->u.ap.noa_len);
		spin_unlock_bh(&ar->data_lock);
	}
}

static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
{
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1993
	int ret = 0;
1994

M
Michal Kazior 已提交
1995 1996 1997 1998 1999 2000
	if (ar->htt.target_version_major >= 3) {
		/* Since HTT 3.0 there is no separate mgmt tx command */
		ret = ath10k_htt_tx(&ar->htt, skb);
		goto exit;
	}

2001 2002 2003 2004 2005
	if (ieee80211_is_mgmt(hdr->frame_control)) {
		if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
			     ar->fw_features)) {
			if (skb_queue_len(&ar->wmi_mgmt_tx_queue) >=
			    ATH10K_MAX_NUM_MGMT_PENDING) {
B
Ben Greear 已提交
2006
				ath10k_warn("reached WMI management transmit queue limit\n");
2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
				ret = -EBUSY;
				goto exit;
			}

			skb_queue_tail(&ar->wmi_mgmt_tx_queue, skb);
			ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
		} else {
			ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
		}
	} else if (!test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
			     ar->fw_features) &&
		   ieee80211_is_nullfunc(hdr->frame_control)) {
2019 2020
		/* FW does not report tx status properly for NullFunc frames
		 * unless they are sent through mgmt tx path. mac80211 sends
2021 2022
		 * those frames when it detects link/beacon loss and depends
		 * on the tx status to be correct. */
2023
		ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
2024
	} else {
2025
		ret = ath10k_htt_tx(&ar->htt, skb);
2026
	}
2027

M
Michal Kazior 已提交
2028
exit:
2029
	if (ret) {
2030
		ath10k_warn("failed to transmit packet, dropping: %d\n", ret);
2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071
		ieee80211_free_txskb(ar->hw, skb);
	}
}

void ath10k_offchan_tx_purge(struct ath10k *ar)
{
	struct sk_buff *skb;

	for (;;) {
		skb = skb_dequeue(&ar->offchan_tx_queue);
		if (!skb)
			break;

		ieee80211_free_txskb(ar->hw, skb);
	}
}

void ath10k_offchan_tx_work(struct work_struct *work)
{
	struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
	struct ath10k_peer *peer;
	struct ieee80211_hdr *hdr;
	struct sk_buff *skb;
	const u8 *peer_addr;
	int vdev_id;
	int ret;

	/* FW requirement: We must create a peer before FW will send out
	 * an offchannel frame. Otherwise the frame will be stuck and
	 * never transmitted. We delete the peer upon tx completion.
	 * It is unlikely that a peer for offchannel tx will already be
	 * present. However it may be in some rare cases so account for that.
	 * Otherwise we might remove a legitimate peer and break stuff. */

	for (;;) {
		skb = skb_dequeue(&ar->offchan_tx_queue);
		if (!skb)
			break;

		mutex_lock(&ar->conf_mutex);

K
Kalle Valo 已提交
2072
		ath10k_dbg(ATH10K_DBG_MAC, "mac offchannel skb %p\n",
2073 2074 2075 2076
			   skb);

		hdr = (struct ieee80211_hdr *)skb->data;
		peer_addr = ieee80211_get_DA(hdr);
2077
		vdev_id = ATH10K_SKB_CB(skb)->vdev_id;
2078 2079 2080 2081 2082 2083

		spin_lock_bh(&ar->data_lock);
		peer = ath10k_peer_find(ar, vdev_id, peer_addr);
		spin_unlock_bh(&ar->data_lock);

		if (peer)
K
Kalle Valo 已提交
2084
			/* FIXME: should this use ath10k_warn()? */
2085 2086 2087 2088 2089 2090
			ath10k_dbg(ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
				   peer_addr, vdev_id);

		if (!peer) {
			ret = ath10k_peer_create(ar, vdev_id, peer_addr);
			if (ret)
2091
				ath10k_warn("failed to create peer %pM on vdev %d: %d\n",
2092 2093 2094 2095
					    peer_addr, vdev_id, ret);
		}

		spin_lock_bh(&ar->data_lock);
2096
		reinit_completion(&ar->offchan_tx_completed);
2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110
		ar->offchan_tx_skb = skb;
		spin_unlock_bh(&ar->data_lock);

		ath10k_tx_htt(ar, skb);

		ret = wait_for_completion_timeout(&ar->offchan_tx_completed,
						  3 * HZ);
		if (ret <= 0)
			ath10k_warn("timed out waiting for offchannel skb %p\n",
				    skb);

		if (!peer) {
			ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
			if (ret)
2111
				ath10k_warn("failed to delete peer %pM on vdev %d: %d\n",
2112 2113 2114 2115 2116 2117 2118
					    peer_addr, vdev_id, ret);
		}

		mutex_unlock(&ar->conf_mutex);
	}
}

2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143
void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
{
	struct sk_buff *skb;

	for (;;) {
		skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
		if (!skb)
			break;

		ieee80211_free_txskb(ar->hw, skb);
	}
}

void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
{
	struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
	struct sk_buff *skb;
	int ret;

	for (;;) {
		skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
		if (!skb)
			break;

		ret = ath10k_wmi_mgmt_tx(ar, skb);
2144
		if (ret) {
2145 2146
			ath10k_warn("failed to transmit management frame via WMI: %d\n",
				    ret);
2147 2148
			ieee80211_free_txskb(ar->hw, skb);
		}
2149 2150 2151
	}
}

2152 2153 2154 2155
/************/
/* Scanning */
/************/

2156
void __ath10k_scan_finish(struct ath10k *ar)
2157
{
2158
	lockdep_assert_held(&ar->data_lock);
2159

2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178
	switch (ar->scan.state) {
	case ATH10K_SCAN_IDLE:
		break;
	case ATH10K_SCAN_RUNNING:
	case ATH10K_SCAN_ABORTING:
		if (ar->scan.is_roc)
			ieee80211_remain_on_channel_expired(ar->hw);
		else
			ieee80211_scan_completed(ar->hw,
						 (ar->scan.state ==
						  ATH10K_SCAN_ABORTING));
		/* fall through */
	case ATH10K_SCAN_STARTING:
		ar->scan.state = ATH10K_SCAN_IDLE;
		ar->scan_channel = NULL;
		ath10k_offchan_tx_purge(ar);
		cancel_delayed_work(&ar->scan.timeout);
		complete_all(&ar->scan.completed);
		break;
2179
	}
2180
}
2181

2182 2183 2184 2185
void ath10k_scan_finish(struct ath10k *ar)
{
	spin_lock_bh(&ar->data_lock);
	__ath10k_scan_finish(ar);
2186 2187 2188
	spin_unlock_bh(&ar->data_lock);
}

2189
static int ath10k_scan_stop(struct ath10k *ar)
2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201
{
	struct wmi_stop_scan_arg arg = {
		.req_id = 1, /* FIXME */
		.req_type = WMI_SCAN_STOP_ONE,
		.u.scan_id = ATH10K_SCAN_ID,
	};
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_stop_scan(ar, &arg);
	if (ret) {
2202
		ath10k_warn("failed to stop wmi scan: %d\n", ret);
2203
		goto out;
2204 2205 2206
	}

	ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
2207 2208 2209 2210 2211 2212
	if (ret == 0) {
		ath10k_warn("failed to receive scan abortion completion: timed out\n");
		ret = -ETIMEDOUT;
	} else if (ret > 0) {
		ret = 0;
	}
2213

2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234
out:
	/* Scan state should be updated upon scan completion but in case
	 * firmware fails to deliver the event (for whatever reason) it is
	 * desired to clean up scan state anyway. Firmware may have just
	 * dropped the scan completion event delivery due to transport pipe
	 * being overflown with data and/or it can recover on its own before
	 * next scan request is submitted.
	 */
	spin_lock_bh(&ar->data_lock);
	if (ar->scan.state != ATH10K_SCAN_IDLE)
		__ath10k_scan_finish(ar);
	spin_unlock_bh(&ar->data_lock);

	return ret;
}

static void ath10k_scan_abort(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);
2235 2236

	spin_lock_bh(&ar->data_lock);
2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259

	switch (ar->scan.state) {
	case ATH10K_SCAN_IDLE:
		/* This can happen if timeout worker kicked in and called
		 * abortion while scan completion was being processed.
		 */
		break;
	case ATH10K_SCAN_STARTING:
	case ATH10K_SCAN_ABORTING:
		ath10k_warn("refusing scan abortion due to invalid scan state: %s (%d)\n",
			    ath10k_scan_state_str(ar->scan.state),
			    ar->scan.state);
		break;
	case ATH10K_SCAN_RUNNING:
		ar->scan.state = ATH10K_SCAN_ABORTING;
		spin_unlock_bh(&ar->data_lock);

		ret = ath10k_scan_stop(ar);
		if (ret)
			ath10k_warn("failed to abort scan: %d\n", ret);

		spin_lock_bh(&ar->data_lock);
		break;
2260
	}
2261

2262
	spin_unlock_bh(&ar->data_lock);
2263
}
2264

2265 2266 2267 2268 2269 2270 2271 2272
void ath10k_scan_timeout_work(struct work_struct *work)
{
	struct ath10k *ar = container_of(work, struct ath10k,
					 scan.timeout.work);

	mutex_lock(&ar->conf_mutex);
	ath10k_scan_abort(ar);
	mutex_unlock(&ar->conf_mutex);
2273 2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287
}

static int ath10k_start_scan(struct ath10k *ar,
			     const struct wmi_start_scan_arg *arg)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_start_scan(ar, arg);
	if (ret)
		return ret;

	ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
	if (ret == 0) {
2288 2289 2290 2291 2292
		ret = ath10k_scan_stop(ar);
		if (ret)
			ath10k_warn("failed to stop scan: %d\n", ret);

		return -ETIMEDOUT;
2293 2294
	}

2295 2296 2297
	/* Add a 200ms margin to account for event/command processing */
	ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
				     msecs_to_jiffies(arg->max_scan_time+200));
2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308
	return 0;
}

/**********************/
/* mac80211 callbacks */
/**********************/

static void ath10k_tx(struct ieee80211_hw *hw,
		      struct ieee80211_tx_control *control,
		      struct sk_buff *skb)
{
M
Michal Kazior 已提交
2309
	struct ath10k *ar = hw->priv;
2310
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
M
Michal Kazior 已提交
2311 2312
	struct ieee80211_vif *vif = info->control.vif;
	struct ieee80211_key_conf *key = info->control.hw_key;
2313 2314 2315 2316 2317 2318
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;

	/* We should disable CCK RATE due to P2P */
	if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
		ath10k_dbg(ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");

M
Michal Kazior 已提交
2319 2320 2321
	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
	ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
	ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, info);
2322

2323
	/* it makes no sense to process injected frames like that */
M
Michal Kazior 已提交
2324 2325 2326 2327 2328
	if (vif && vif->type != NL80211_IFTYPE_MONITOR) {
		ath10k_tx_h_nwifi(hw, skb);
		ath10k_tx_h_update_wep_key(vif, key, skb);
		ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
		ath10k_tx_h_seq_no(vif, skb);
2329
	}
2330 2331 2332 2333

	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
		spin_lock_bh(&ar->data_lock);
		ATH10K_SKB_CB(skb)->htt.is_offchan = true;
2334
		ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346
		spin_unlock_bh(&ar->data_lock);

		ath10k_dbg(ATH10K_DBG_MAC, "queued offchannel skb %p\n", skb);

		skb_queue_tail(&ar->offchan_tx_queue, skb);
		ieee80211_queue_work(hw, &ar->offchan_tx_work);
		return;
	}

	ath10k_tx_htt(ar, skb);
}

2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359
/* Must not be called with conf_mutex held as workers can use that also. */
static void ath10k_drain_tx(struct ath10k *ar)
{
	/* make sure rcu-protected mac80211 tx path itself is drained */
	synchronize_net();

	ath10k_offchan_tx_purge(ar);
	ath10k_mgmt_over_wmi_tx_purge(ar);

	cancel_work_sync(&ar->offchan_tx_work);
	cancel_work_sync(&ar->wmi_mgmt_tx_work);
}

2360
void ath10k_halt(struct ath10k *ar)
2361
{
2362 2363
	struct ath10k_vif *arvif;

2364 2365
	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
2366 2367 2368 2369 2370 2371 2372
	if (ath10k_monitor_is_enabled(ar)) {
		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
		ar->promisc = false;
		ar->monitor = false;
		ath10k_monitor_stop(ar);
	}

2373
	ath10k_scan_finish(ar);
2374 2375 2376 2377 2378
	ath10k_peer_cleanup_all(ar);
	ath10k_core_stop(ar);
	ath10k_hif_power_down(ar);

	spin_lock_bh(&ar->data_lock);
2379 2380 2381 2382 2383 2384 2385 2386 2387 2388
	list_for_each_entry(arvif, &ar->arvifs, list) {
		if (!arvif->beacon)
			continue;

		dma_unmap_single(arvif->ar->dev,
				 ATH10K_SKB_CB(arvif->beacon)->paddr,
				 arvif->beacon->len, DMA_TO_DEVICE);
		dev_kfree_skb_any(arvif->beacon);
		arvif->beacon = NULL;
	}
2389 2390 2391
	spin_unlock_bh(&ar->data_lock);
}

2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404 2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453
static int ath10k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
{
	struct ath10k *ar = hw->priv;

	mutex_lock(&ar->conf_mutex);

	if (ar->cfg_tx_chainmask) {
		*tx_ant = ar->cfg_tx_chainmask;
		*rx_ant = ar->cfg_rx_chainmask;
	} else {
		*tx_ant = ar->supp_tx_chainmask;
		*rx_ant = ar->supp_rx_chainmask;
	}

	mutex_unlock(&ar->conf_mutex);

	return 0;
}

static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ar->cfg_tx_chainmask = tx_ant;
	ar->cfg_rx_chainmask = rx_ant;

	if ((ar->state != ATH10K_STATE_ON) &&
	    (ar->state != ATH10K_STATE_RESTARTED))
		return 0;

	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->tx_chain_mask,
					tx_ant);
	if (ret) {
		ath10k_warn("failed to set tx-chainmask: %d, req 0x%x\n",
			    ret, tx_ant);
		return ret;
	}

	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
					rx_ant);
	if (ret) {
		ath10k_warn("failed to set rx-chainmask: %d, req 0x%x\n",
			    ret, rx_ant);
		return ret;
	}

	return 0;
}

static int ath10k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
{
	struct ath10k *ar = hw->priv;
	int ret;

	mutex_lock(&ar->conf_mutex);
	ret = __ath10k_set_antenna(ar, tx_ant, rx_ant);
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

2454 2455 2456
static int ath10k_start(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;
2457
	int ret = 0;
2458

2459 2460 2461 2462 2463 2464 2465
	/*
	 * This makes sense only when restarting hw. It is harmless to call
	 * uncoditionally. This is necessary to make sure no HTT/WMI tx
	 * commands will be submitted while restarting.
	 */
	ath10k_drain_tx(ar);

M
Michal Kazior 已提交
2466 2467
	mutex_lock(&ar->conf_mutex);

2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479
	switch (ar->state) {
	case ATH10K_STATE_OFF:
		ar->state = ATH10K_STATE_ON;
		break;
	case ATH10K_STATE_RESTARTING:
		ath10k_halt(ar);
		ar->state = ATH10K_STATE_RESTARTED;
		break;
	case ATH10K_STATE_ON:
	case ATH10K_STATE_RESTARTED:
	case ATH10K_STATE_WEDGED:
		WARN_ON(1);
2480
		ret = -EINVAL;
2481
		goto err;
2482 2483 2484 2485
	}

	ret = ath10k_hif_power_up(ar);
	if (ret) {
2486
		ath10k_err("Could not init hif: %d\n", ret);
2487
		goto err_off;
2488 2489 2490 2491
	}

	ret = ath10k_core_start(ar);
	if (ret) {
2492
		ath10k_err("Could not init core: %d\n", ret);
2493
		goto err_power_down;
2494 2495
	}

2496
	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
2497
	if (ret) {
2498
		ath10k_warn("failed to enable PMF QOS: %d\n", ret);
2499 2500
		goto err_core_stop;
	}
2501

2502
	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
2503
	if (ret) {
2504
		ath10k_warn("failed to enable dynamic BW: %d\n", ret);
2505 2506
		goto err_core_stop;
	}
2507

2508 2509 2510 2511
	if (ar->cfg_tx_chainmask)
		__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
				     ar->cfg_rx_chainmask);

2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523
	/*
	 * By default FW set ARP frames ac to voice (6). In that case ARP
	 * exchange is not working properly for UAPSD enabled AP. ARP requests
	 * which arrives with access category 0 are processed by network stack
	 * and send back with access category 0, but FW changes access category
	 * to 6. Set ARP frames access category to best effort (0) solves
	 * this problem.
	 */

	ret = ath10k_wmi_pdev_set_param(ar,
					ar->wmi.pdev_param->arp_ac_override, 0);
	if (ret) {
2524
		ath10k_warn("failed to set arp ac override parameter: %d\n",
2525
			    ret);
2526
		goto err_core_stop;
2527 2528
	}

2529
	ar->num_started_vdevs = 0;
2530 2531
	ath10k_regd_update(ar);

2532 2533
	ath10k_spectral_start(ar);

2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546
	mutex_unlock(&ar->conf_mutex);
	return 0;

err_core_stop:
	ath10k_core_stop(ar);

err_power_down:
	ath10k_hif_power_down(ar);

err_off:
	ar->state = ATH10K_STATE_OFF;

err:
M
Michal Kazior 已提交
2547
	mutex_unlock(&ar->conf_mutex);
2548
	return ret;
2549 2550 2551 2552 2553 2554
}

static void ath10k_stop(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;

2555 2556
	ath10k_drain_tx(ar);

M
Michal Kazior 已提交
2557
	mutex_lock(&ar->conf_mutex);
2558
	if (ar->state != ATH10K_STATE_OFF) {
2559
		ath10k_halt(ar);
2560 2561
		ar->state = ATH10K_STATE_OFF;
	}
M
Michal Kazior 已提交
2562 2563
	mutex_unlock(&ar->conf_mutex);

2564
	cancel_delayed_work_sync(&ar->scan.timeout);
2565
	cancel_work_sync(&ar->restart_work);
2566 2567
}

2568
static int ath10k_config_ps(struct ath10k *ar)
2569
{
2570 2571
	struct ath10k_vif *arvif;
	int ret = 0;
2572 2573 2574

	lockdep_assert_held(&ar->conf_mutex);

2575 2576 2577
	list_for_each_entry(arvif, &ar->arvifs, list) {
		ret = ath10k_mac_vif_setup_ps(arvif);
		if (ret) {
2578
			ath10k_warn("failed to setup powersave: %d\n", ret);
2579 2580 2581
			break;
		}
	}
2582

2583
	return ret;
2584 2585
}

2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624
static const char *chandef_get_width(enum nl80211_chan_width width)
{
	switch (width) {
	case NL80211_CHAN_WIDTH_20_NOHT:
		return "20 (noht)";
	case NL80211_CHAN_WIDTH_20:
		return "20";
	case NL80211_CHAN_WIDTH_40:
		return "40";
	case NL80211_CHAN_WIDTH_80:
		return "80";
	case NL80211_CHAN_WIDTH_80P80:
		return "80+80";
	case NL80211_CHAN_WIDTH_160:
		return "160";
	case NL80211_CHAN_WIDTH_5:
		return "5";
	case NL80211_CHAN_WIDTH_10:
		return "10";
	}
	return "?";
}

static void ath10k_config_chan(struct ath10k *ar)
{
	struct ath10k_vif *arvif;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ath10k_dbg(ATH10K_DBG_MAC,
		   "mac config channel to %dMHz (cf1 %dMHz cf2 %dMHz width %s)\n",
		   ar->chandef.chan->center_freq,
		   ar->chandef.center_freq1,
		   ar->chandef.center_freq2,
		   chandef_get_width(ar->chandef.width));

	/* First stop monitor interface. Some FW versions crash if there's a
	 * lone monitor interface. */
M
Michal Kazior 已提交
2625 2626
	if (ar->monitor_started)
		ath10k_monitor_vdev_stop(ar);
2627 2628 2629 2630 2631

	list_for_each_entry(arvif, &ar->arvifs, list) {
		if (!arvif->is_started)
			continue;

2632 2633 2634
		if (!arvif->is_up)
			continue;

2635 2636 2637
		if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
			continue;

2638
		ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
2639
		if (ret) {
2640
			ath10k_warn("failed to down vdev %d: %d\n",
2641 2642 2643 2644 2645
				    arvif->vdev_id, ret);
			continue;
		}
	}

2646
	/* all vdevs are downed now - attempt to restart and re-up them */
2647 2648 2649 2650 2651 2652 2653 2654

	list_for_each_entry(arvif, &ar->arvifs, list) {
		if (!arvif->is_started)
			continue;

		if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
			continue;

2655
		ret = ath10k_vdev_restart(arvif);
2656
		if (ret) {
2657
			ath10k_warn("failed to restart vdev %d: %d\n",
2658 2659 2660 2661 2662 2663 2664 2665 2666 2667
				    arvif->vdev_id, ret);
			continue;
		}

		if (!arvif->is_up)
			continue;

		ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
					 arvif->bssid);
		if (ret) {
2668
			ath10k_warn("failed to bring vdev up %d: %d\n",
2669 2670 2671 2672 2673
				    arvif->vdev_id, ret);
			continue;
		}
	}

M
Michal Kazior 已提交
2674 2675
	if (ath10k_monitor_is_enabled(ar))
		ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
2676 2677
}

2678 2679
static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
{
2680 2681 2682
	struct ath10k *ar = hw->priv;
	struct ieee80211_conf *conf = &hw->conf;
	int ret = 0;
M
Michal Kazior 已提交
2683
	u32 param;
2684 2685 2686 2687

	mutex_lock(&ar->conf_mutex);

	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
2688
		ath10k_dbg(ATH10K_DBG_MAC,
2689
			   "mac config channel %dMHz flags 0x%x radar %d\n",
2690
			   conf->chandef.chan->center_freq,
2691 2692
			   conf->chandef.chan->flags,
			   conf->radar_enabled);
2693

2694 2695 2696
		spin_lock_bh(&ar->data_lock);
		ar->rx_channel = conf->chandef.chan;
		spin_unlock_bh(&ar->data_lock);
2697

2698 2699
		ar->radar_enabled = conf->radar_enabled;
		ath10k_recalc_radar_detection(ar);
2700 2701 2702 2703 2704

		if (!cfg80211_chandef_identical(&ar->chandef, &conf->chandef)) {
			ar->chandef = conf->chandef;
			ath10k_config_chan(ar);
		}
2705 2706
	}

M
Michal Kazior 已提交
2707 2708 2709 2710 2711 2712 2713 2714
	if (changed & IEEE80211_CONF_CHANGE_POWER) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac config power %d\n",
			   hw->conf.power_level);

		param = ar->wmi.pdev_param->txpower_limit2g;
		ret = ath10k_wmi_pdev_set_param(ar, param,
						hw->conf.power_level * 2);
		if (ret)
2715
			ath10k_warn("failed to set 2g txpower %d: %d\n",
M
Michal Kazior 已提交
2716 2717 2718 2719 2720 2721
				    hw->conf.power_level, ret);

		param = ar->wmi.pdev_param->txpower_limit5g;
		ret = ath10k_wmi_pdev_set_param(ar, param,
						hw->conf.power_level * 2);
		if (ret)
2722
			ath10k_warn("failed to set 5g txpower %d: %d\n",
M
Michal Kazior 已提交
2723
				    hw->conf.power_level, ret);
2724 2725
	}

2726 2727
	if (changed & IEEE80211_CONF_CHANGE_PS)
		ath10k_config_ps(ar);
2728 2729

	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
M
Michal Kazior 已提交
2730 2731 2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742
		if (conf->flags & IEEE80211_CONF_MONITOR && !ar->monitor) {
			ar->monitor = true;
			ret = ath10k_monitor_start(ar);
			if (ret) {
				ath10k_warn("failed to start monitor (config): %d\n",
					    ret);
				ar->monitor = false;
			}
		} else if (!(conf->flags & IEEE80211_CONF_MONITOR) &&
			   ar->monitor) {
			ar->monitor = false;
			ath10k_monitor_stop(ar);
		}
2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761 2762
	}

	mutex_unlock(&ar->conf_mutex);
	return ret;
}

/*
 * TODO:
 * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
 * because we will send mgmt frames without CCK. This requirement
 * for P2P_FIND/GO_NEG should be handled by checking CCK flag
 * in the TX packet.
 */
static int ath10k_add_interface(struct ieee80211_hw *hw,
				struct ieee80211_vif *vif)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	enum wmi_sta_powersave_param param;
	int ret = 0;
2763
	u32 value;
2764
	int bit;
2765
	u32 vdev_param;
2766 2767 2768

	mutex_lock(&ar->conf_mutex);

2769 2770
	memset(arvif, 0, sizeof(*arvif));

2771 2772 2773
	arvif->ar = ar;
	arvif->vif = vif;

2774
	INIT_WORK(&arvif->wep_key_work, ath10k_tx_wep_key_work);
2775
	INIT_LIST_HEAD(&arvif->list);
2776

B
Ben Greear 已提交
2777 2778
	if (ar->free_vdev_map == 0) {
		ath10k_warn("Free vdev map is empty, no more interfaces allowed.\n");
2779
		ret = -EBUSY;
2780
		goto err;
2781
	}
B
Ben Greear 已提交
2782
	bit = ffs(ar->free_vdev_map);
2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813

	arvif->vdev_id = bit - 1;
	arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;

	if (ar->p2p)
		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;

	switch (vif->type) {
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
		arvif->vdev_type = WMI_VDEV_TYPE_STA;
		if (vif->p2p)
			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
		break;
	case NL80211_IFTYPE_ADHOC:
		arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
		break;
	case NL80211_IFTYPE_AP:
		arvif->vdev_type = WMI_VDEV_TYPE_AP;

		if (vif->p2p)
			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
		break;
	case NL80211_IFTYPE_MONITOR:
		arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
		break;
	default:
		WARN_ON(1);
		break;
	}

K
Kalle Valo 已提交
2814
	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d\n",
2815 2816 2817 2818 2819
		   arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype);

	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
				     arvif->vdev_subtype, vif->addr);
	if (ret) {
2820
		ath10k_warn("failed to create WMI vdev %i: %d\n",
2821
			    arvif->vdev_id, ret);
2822
		goto err;
2823 2824
	}

B
Ben Greear 已提交
2825
	ar->free_vdev_map &= ~(1 << arvif->vdev_id);
M
Michal Kazior 已提交
2826
	list_add(&arvif->list, &ar->arvifs);
2827

2828 2829
	vdev_param = ar->wmi.vdev_param->def_keyid;
	ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
2830
					arvif->def_wep_key_idx);
2831
	if (ret) {
2832
		ath10k_warn("failed to set vdev %i default key id: %d\n",
2833
			    arvif->vdev_id, ret);
2834 2835
		goto err_vdev_delete;
	}
2836

2837 2838
	vdev_param = ar->wmi.vdev_param->tx_encap_type;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
2839
					ATH10K_HW_TXRX_NATIVE_WIFI);
2840
	/* 10.X firmware does not support this VDEV parameter. Do not warn */
2841
	if (ret && ret != -EOPNOTSUPP) {
2842
		ath10k_warn("failed to set vdev %i TX encapsulation: %d\n",
2843
			    arvif->vdev_id, ret);
2844 2845
		goto err_vdev_delete;
	}
2846 2847 2848 2849

	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
		ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
		if (ret) {
2850
			ath10k_warn("failed to create vdev %i peer for AP: %d\n",
2851
				    arvif->vdev_id, ret);
2852
			goto err_vdev_delete;
2853
		}
2854

2855 2856
		ret = ath10k_mac_set_kickout(arvif);
		if (ret) {
2857
			ath10k_warn("failed to set vdev %i kickout parameters: %d\n",
2858
				    arvif->vdev_id, ret);
2859 2860
			goto err_peer_delete;
		}
2861 2862 2863 2864 2865 2866 2867
	}

	if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
		param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
						  param, value);
2868
		if (ret) {
2869
			ath10k_warn("failed to set vdev %i RX wake policy: %d\n",
2870
				    arvif->vdev_id, ret);
2871 2872
			goto err_peer_delete;
		}
2873 2874 2875 2876 2877

		param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
		value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
						  param, value);
2878
		if (ret) {
2879
			ath10k_warn("failed to set vdev %i TX wake thresh: %d\n",
2880
				    arvif->vdev_id, ret);
2881 2882
			goto err_peer_delete;
		}
2883 2884 2885 2886 2887

		param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
		value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
						  param, value);
2888
		if (ret) {
2889
			ath10k_warn("failed to set vdev %i PSPOLL count: %d\n",
2890
				    arvif->vdev_id, ret);
2891 2892
			goto err_peer_delete;
		}
2893 2894
	}

2895
	ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
2896
	if (ret) {
2897
		ath10k_warn("failed to set rts threshold for vdev %d: %d\n",
2898
			    arvif->vdev_id, ret);
2899 2900
		goto err_peer_delete;
	}
2901

2902
	ret = ath10k_mac_set_frag(arvif, ar->hw->wiphy->frag_threshold);
2903
	if (ret) {
2904
		ath10k_warn("failed to set frag threshold for vdev %d: %d\n",
2905
			    arvif->vdev_id, ret);
2906 2907
		goto err_peer_delete;
	}
2908

2909
	mutex_unlock(&ar->conf_mutex);
2910 2911 2912 2913 2914 2915 2916 2917
	return 0;

err_peer_delete:
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
		ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);

err_vdev_delete:
	ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
B
Ben Greear 已提交
2918
	ar->free_vdev_map |= 1 << arvif->vdev_id;
M
Michal Kazior 已提交
2919
	list_del(&arvif->list);
2920 2921 2922 2923

err:
	mutex_unlock(&ar->conf_mutex);

2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935
	return ret;
}

static void ath10k_remove_interface(struct ieee80211_hw *hw,
				    struct ieee80211_vif *vif)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	int ret;

	mutex_lock(&ar->conf_mutex);

2936 2937
	cancel_work_sync(&arvif->wep_key_work);

2938 2939
	spin_lock_bh(&ar->data_lock);
	if (arvif->beacon) {
2940 2941 2942
		dma_unmap_single(arvif->ar->dev,
				 ATH10K_SKB_CB(arvif->beacon)->paddr,
				 arvif->beacon->len, DMA_TO_DEVICE);
2943 2944 2945
		dev_kfree_skb_any(arvif->beacon);
		arvif->beacon = NULL;
	}
2946

2947 2948
	spin_unlock_bh(&ar->data_lock);

2949 2950 2951 2952 2953
	ret = ath10k_spectral_vif_stop(arvif);
	if (ret)
		ath10k_warn("failed to stop spectral for vdev %i: %d\n",
			    arvif->vdev_id, ret);

B
Ben Greear 已提交
2954
	ar->free_vdev_map |= 1 << arvif->vdev_id;
M
Michal Kazior 已提交
2955
	list_del(&arvif->list);
2956 2957 2958 2959

	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
		if (ret)
2960
			ath10k_warn("failed to remove peer for AP vdev %i: %d\n",
2961
				    arvif->vdev_id, ret);
2962 2963 2964 2965

		kfree(arvif->u.ap.noa_data);
	}

2966
	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
K
Kalle Valo 已提交
2967 2968
		   arvif->vdev_id);

2969 2970
	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
	if (ret)
2971
		ath10k_warn("failed to delete WMI vdev %i: %d\n",
2972
			    arvif->vdev_id, ret);
2973 2974 2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005

	ath10k_peer_cleanup(ar, arvif->vdev_id);

	mutex_unlock(&ar->conf_mutex);
}

/*
 * FIXME: Has to be verified.
 */
#define SUPPORTED_FILTERS			\
	(FIF_PROMISC_IN_BSS |			\
	FIF_ALLMULTI |				\
	FIF_CONTROL |				\
	FIF_PSPOLL |				\
	FIF_OTHER_BSS |				\
	FIF_BCN_PRBRESP_PROMISC |		\
	FIF_PROBE_REQ |				\
	FIF_FCSFAIL)

static void ath10k_configure_filter(struct ieee80211_hw *hw,
				    unsigned int changed_flags,
				    unsigned int *total_flags,
				    u64 multicast)
{
	struct ath10k *ar = hw->priv;
	int ret;

	mutex_lock(&ar->conf_mutex);

	changed_flags &= SUPPORTED_FILTERS;
	*total_flags &= SUPPORTED_FILTERS;
	ar->filter_flags = *total_flags;

M
Michal Kazior 已提交
3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016
	if (ar->filter_flags & FIF_PROMISC_IN_BSS && !ar->promisc) {
		ar->promisc = true;
		ret = ath10k_monitor_start(ar);
		if (ret) {
			ath10k_warn("failed to start monitor (promisc): %d\n",
				    ret);
			ar->promisc = false;
		}
	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) && ar->promisc) {
		ar->promisc = false;
		ath10k_monitor_stop(ar);
3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029
	}

	mutex_unlock(&ar->conf_mutex);
}

static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
				    struct ieee80211_vif *vif,
				    struct ieee80211_bss_conf *info,
				    u32 changed)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	int ret = 0;
3030
	u32 vdev_param, pdev_param;
3031 3032 3033 3034 3035 3036 3037 3038

	mutex_lock(&ar->conf_mutex);

	if (changed & BSS_CHANGED_IBSS)
		ath10k_control_ibss(arvif, info, vif->addr);

	if (changed & BSS_CHANGED_BEACON_INT) {
		arvif->beacon_interval = info->beacon_int;
3039 3040
		vdev_param = ar->wmi.vdev_param->beacon_interval;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3041
						arvif->beacon_interval);
K
Kalle Valo 已提交
3042 3043 3044 3045
		ath10k_dbg(ATH10K_DBG_MAC,
			   "mac vdev %d beacon_interval %d\n",
			   arvif->vdev_id, arvif->beacon_interval);

3046
		if (ret)
3047
			ath10k_warn("failed to set beacon interval for vdev %d: %i\n",
3048
				    arvif->vdev_id, ret);
3049 3050 3051
	}

	if (changed & BSS_CHANGED_BEACON) {
K
Kalle Valo 已提交
3052 3053 3054 3055
		ath10k_dbg(ATH10K_DBG_MAC,
			   "vdev %d set beacon tx mode to staggered\n",
			   arvif->vdev_id);

3056 3057
		pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
		ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
3058 3059
						WMI_BEACON_STAGGERED_MODE);
		if (ret)
3060
			ath10k_warn("failed to set beacon mode for vdev %d: %i\n",
3061
				    arvif->vdev_id, ret);
3062 3063
	}

3064
	if (changed & BSS_CHANGED_BEACON_INFO) {
3065 3066
		arvif->dtim_period = info->dtim_period;

K
Kalle Valo 已提交
3067 3068 3069 3070
		ath10k_dbg(ATH10K_DBG_MAC,
			   "mac vdev %d dtim_period %d\n",
			   arvif->vdev_id, arvif->dtim_period);

3071 3072
		vdev_param = ar->wmi.vdev_param->dtim_period;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3073 3074
						arvif->dtim_period);
		if (ret)
3075
			ath10k_warn("failed to set dtim period for vdev %d: %i\n",
3076
				    arvif->vdev_id, ret);
3077 3078 3079 3080 3081 3082 3083 3084 3085 3086
	}

	if (changed & BSS_CHANGED_SSID &&
	    vif->type == NL80211_IFTYPE_AP) {
		arvif->u.ap.ssid_len = info->ssid_len;
		if (info->ssid_len)
			memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
		arvif->u.ap.hidden_ssid = info->hidden_ssid;
	}

3087 3088 3089 3090 3091 3092
	/*
	 * Firmware manages AP self-peer internally so make sure to not create
	 * it in driver. Otherwise AP self-peer deletion may timeout later.
	 */
	if (changed & BSS_CHANGED_BSSID &&
	    vif->type != NL80211_IFTYPE_AP) {
3093
		if (!is_zero_ether_addr(info->bssid)) {
K
Kalle Valo 已提交
3094 3095 3096 3097
			ath10k_dbg(ATH10K_DBG_MAC,
				   "mac vdev %d create peer %pM\n",
				   arvif->vdev_id, info->bssid);

3098 3099 3100
			ret = ath10k_peer_create(ar, arvif->vdev_id,
						 info->bssid);
			if (ret)
3101
				ath10k_warn("failed to add peer %pM for vdev %d when changing bssid: %i\n",
3102
					    info->bssid, arvif->vdev_id, ret);
3103 3104 3105 3106 3107 3108

			if (vif->type == NL80211_IFTYPE_STATION) {
				/*
				 * this is never erased as we it for crypto key
				 * clearing; this is FW requirement
				 */
3109
				memcpy(arvif->bssid, info->bssid, ETH_ALEN);
3110

K
Kalle Valo 已提交
3111 3112 3113 3114
				ath10k_dbg(ATH10K_DBG_MAC,
					   "mac vdev %d start %pM\n",
					   arvif->vdev_id, info->bssid);

3115
				ret = ath10k_vdev_start(arvif);
3116
				if (ret) {
3117 3118
					ath10k_warn("failed to start vdev %i: %d\n",
						    arvif->vdev_id, ret);
3119
					goto exit;
3120 3121 3122
				}

				arvif->is_started = true;
3123 3124 3125 3126 3127 3128 3129 3130
			}

			/*
			 * Mac80211 does not keep IBSS bssid when leaving IBSS,
			 * so driver need to store it. It is needed when leaving
			 * IBSS in order to remove BSSID peer.
			 */
			if (vif->type == NL80211_IFTYPE_ADHOC)
3131
				memcpy(arvif->bssid, info->bssid,
3132 3133 3134 3135 3136 3137 3138 3139
				       ETH_ALEN);
		}
	}

	if (changed & BSS_CHANGED_BEACON_ENABLED)
		ath10k_control_beaconing(arvif, info);

	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3140
		arvif->use_cts_prot = info->use_cts_prot;
K
Kalle Valo 已提交
3141
		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
3142
			   arvif->vdev_id, info->use_cts_prot);
K
Kalle Valo 已提交
3143

3144
		ret = ath10k_recalc_rtscts_prot(arvif);
3145
		if (ret)
3146
			ath10k_warn("failed to recalculate rts/cts prot for vdev %d: %d\n",
3147
				    arvif->vdev_id, ret);
3148 3149 3150 3151 3152 3153 3154 3155 3156 3157
	}

	if (changed & BSS_CHANGED_ERP_SLOT) {
		u32 slottime;
		if (info->use_short_slot)
			slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */

		else
			slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */

K
Kalle Valo 已提交
3158 3159 3160
		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
			   arvif->vdev_id, slottime);

3161 3162
		vdev_param = ar->wmi.vdev_param->slot_time;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3163 3164
						slottime);
		if (ret)
3165
			ath10k_warn("failed to set erp slot for vdev %d: %i\n",
3166
				    arvif->vdev_id, ret);
3167 3168 3169 3170 3171 3172 3173 3174 3175
	}

	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
		u32 preamble;
		if (info->use_short_preamble)
			preamble = WMI_VDEV_PREAMBLE_SHORT;
		else
			preamble = WMI_VDEV_PREAMBLE_LONG;

K
Kalle Valo 已提交
3176 3177 3178 3179
		ath10k_dbg(ATH10K_DBG_MAC,
			   "mac vdev %d preamble %dn",
			   arvif->vdev_id, preamble);

3180 3181
		vdev_param = ar->wmi.vdev_param->preamble;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
3182 3183
						preamble);
		if (ret)
3184
			ath10k_warn("failed to set preamble for vdev %d: %i\n",
3185
				    arvif->vdev_id, ret);
3186 3187 3188 3189 3190 3191 3192
	}

	if (changed & BSS_CHANGED_ASSOC) {
		if (info->assoc)
			ath10k_bss_assoc(hw, vif, info);
	}

3193
exit:
3194 3195 3196 3197 3198
	mutex_unlock(&ar->conf_mutex);
}

static int ath10k_hw_scan(struct ieee80211_hw *hw,
			  struct ieee80211_vif *vif,
3199
			  struct ieee80211_scan_request *hw_req)
3200 3201 3202
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3203
	struct cfg80211_scan_request *req = &hw_req->req;
3204 3205 3206 3207 3208 3209 3210
	struct wmi_start_scan_arg arg;
	int ret = 0;
	int i;

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222
	switch (ar->scan.state) {
	case ATH10K_SCAN_IDLE:
		reinit_completion(&ar->scan.started);
		reinit_completion(&ar->scan.completed);
		ar->scan.state = ATH10K_SCAN_STARTING;
		ar->scan.is_roc = false;
		ar->scan.vdev_id = arvif->vdev_id;
		ret = 0;
		break;
	case ATH10K_SCAN_STARTING:
	case ATH10K_SCAN_RUNNING:
	case ATH10K_SCAN_ABORTING:
3223
		ret = -EBUSY;
3224
		break;
3225 3226 3227
	}
	spin_unlock_bh(&ar->data_lock);

3228 3229 3230
	if (ret)
		goto exit;

3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249
	memset(&arg, 0, sizeof(arg));
	ath10k_wmi_start_scan_init(ar, &arg);
	arg.vdev_id = arvif->vdev_id;
	arg.scan_id = ATH10K_SCAN_ID;

	if (!req->no_cck)
		arg.scan_ctrl_flags |= WMI_SCAN_ADD_CCK_RATES;

	if (req->ie_len) {
		arg.ie_len = req->ie_len;
		memcpy(arg.ie, req->ie, arg.ie_len);
	}

	if (req->n_ssids) {
		arg.n_ssids = req->n_ssids;
		for (i = 0; i < arg.n_ssids; i++) {
			arg.ssids[i].len  = req->ssids[i].ssid_len;
			arg.ssids[i].ssid = req->ssids[i].ssid;
		}
3250 3251
	} else {
		arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
3252 3253 3254 3255 3256 3257 3258 3259 3260 3261
	}

	if (req->n_channels) {
		arg.n_channels = req->n_channels;
		for (i = 0; i < arg.n_channels; i++)
			arg.channels[i] = req->channels[i]->center_freq;
	}

	ret = ath10k_start_scan(ar, &arg);
	if (ret) {
3262
		ath10k_warn("failed to start hw scan: %d\n", ret);
3263
		spin_lock_bh(&ar->data_lock);
3264
		ar->scan.state = ATH10K_SCAN_IDLE;
3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278
		spin_unlock_bh(&ar->data_lock);
	}

exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
				  struct ieee80211_vif *vif)
{
	struct ath10k *ar = hw->priv;

	mutex_lock(&ar->conf_mutex);
3279 3280
	cancel_delayed_work_sync(&ar->scan.timeout);
	ath10k_scan_abort(ar);
3281 3282 3283
	mutex_unlock(&ar->conf_mutex);
}

3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 3314 3315 3316 3317
static void ath10k_set_key_h_def_keyidx(struct ath10k *ar,
					struct ath10k_vif *arvif,
					enum set_key_cmd cmd,
					struct ieee80211_key_conf *key)
{
	u32 vdev_param = arvif->ar->wmi.vdev_param->def_keyid;
	int ret;

	/* 10.1 firmware branch requires default key index to be set to group
	 * key index after installing it. Otherwise FW/HW Txes corrupted
	 * frames with multi-vif APs. This is not required for main firmware
	 * branch (e.g. 636).
	 *
	 * FIXME: This has been tested only in AP. It remains unknown if this
	 * is required for multi-vif STA interfaces on 10.1 */

	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return;

	if (key->cipher == WLAN_CIPHER_SUITE_WEP40)
		return;

	if (key->cipher == WLAN_CIPHER_SUITE_WEP104)
		return;

	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
		return;

	if (cmd != SET_KEY)
		return;

	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
					key->keyidx);
	if (ret)
3318 3319
		ath10k_warn("failed to set vdev %i group key as default key: %d\n",
			    arvif->vdev_id, ret);
3320 3321
}

3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355
static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
			  struct ieee80211_vif *vif, struct ieee80211_sta *sta,
			  struct ieee80211_key_conf *key)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct ath10k_peer *peer;
	const u8 *peer_addr;
	bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
		      key->cipher == WLAN_CIPHER_SUITE_WEP104;
	int ret = 0;

	if (key->keyidx > WMI_MAX_KEY_INDEX)
		return -ENOSPC;

	mutex_lock(&ar->conf_mutex);

	if (sta)
		peer_addr = sta->addr;
	else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
		peer_addr = vif->bss_conf.bssid;
	else
		peer_addr = vif->addr;

	key->hw_key_idx = key->keyidx;

	/* the peer should not disappear in mid-way (unless FW goes awry) since
	 * we already hold conf_mutex. we just make sure its there now. */
	spin_lock_bh(&ar->data_lock);
	peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
	spin_unlock_bh(&ar->data_lock);

	if (!peer) {
		if (cmd == SET_KEY) {
3356
			ath10k_warn("failed to install key for non-existent peer %pM\n",
3357 3358 3359 3360 3361 3362 3363 3364 3365 3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378
				    peer_addr);
			ret = -EOPNOTSUPP;
			goto exit;
		} else {
			/* if the peer doesn't exist there is no key to disable
			 * anymore */
			goto exit;
		}
	}

	if (is_wep) {
		if (cmd == SET_KEY)
			arvif->wep_keys[key->keyidx] = key;
		else
			arvif->wep_keys[key->keyidx] = NULL;

		if (cmd == DISABLE_KEY)
			ath10k_clear_vdev_key(arvif, key);
	}

	ret = ath10k_install_key(arvif, key, cmd, peer_addr);
	if (ret) {
3379
		ath10k_warn("failed to install key for vdev %i peer %pM: %d\n",
3380
			    arvif->vdev_id, peer_addr, ret);
3381 3382 3383
		goto exit;
	}

3384 3385
	ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);

3386 3387 3388 3389 3390 3391 3392 3393
	spin_lock_bh(&ar->data_lock);
	peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
	if (peer && cmd == SET_KEY)
		peer->keys[key->keyidx] = key;
	else if (peer && cmd == DISABLE_KEY)
		peer->keys[key->keyidx] = NULL;
	else if (peer == NULL)
		/* impossible unless FW goes crazy */
3394
		ath10k_warn("Peer %pM disappeared!\n", peer_addr);
3395 3396 3397 3398 3399 3400 3401
	spin_unlock_bh(&ar->data_lock);

exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 3428 3429 3430 3431 3432 3433 3434 3435 3436 3437 3438 3439 3440 3441 3442 3443 3444 3445 3446 3447 3448 3449 3450 3451 3452 3453 3454 3455 3456 3457 3458 3459 3460 3461
static void ath10k_sta_rc_update_wk(struct work_struct *wk)
{
	struct ath10k *ar;
	struct ath10k_vif *arvif;
	struct ath10k_sta *arsta;
	struct ieee80211_sta *sta;
	u32 changed, bw, nss, smps;
	int err;

	arsta = container_of(wk, struct ath10k_sta, update_wk);
	sta = container_of((void *)arsta, struct ieee80211_sta, drv_priv);
	arvif = arsta->arvif;
	ar = arvif->ar;

	spin_lock_bh(&ar->data_lock);

	changed = arsta->changed;
	arsta->changed = 0;

	bw = arsta->bw;
	nss = arsta->nss;
	smps = arsta->smps;

	spin_unlock_bh(&ar->data_lock);

	mutex_lock(&ar->conf_mutex);

	if (changed & IEEE80211_RC_BW_CHANGED) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
			   sta->addr, bw);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_CHAN_WIDTH, bw);
		if (err)
			ath10k_warn("failed to update STA %pM peer bw %d: %d\n",
				    sta->addr, bw, err);
	}

	if (changed & IEEE80211_RC_NSS_CHANGED) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
			   sta->addr, nss);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_NSS, nss);
		if (err)
			ath10k_warn("failed to update STA %pM nss %d: %d\n",
				    sta->addr, nss, err);
	}

	if (changed & IEEE80211_RC_SMPS_CHANGED) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
			   sta->addr, smps);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_SMPS_STATE, smps);
		if (err)
			ath10k_warn("failed to update STA %pM smps %d: %d\n",
				    sta->addr, smps, err);
	}

3462 3463 3464 3465 3466 3467
	if (changed & IEEE80211_RC_SUPP_RATES_CHANGED) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac update sta %pM supp rates\n",
			   sta->addr);

		err = ath10k_station_assoc(ar, arvif, sta, true);
		if (err)
3468
			ath10k_warn("failed to reassociate station: %pM\n",
3469 3470 3471
				    sta->addr);
	}

3472 3473 3474
	mutex_unlock(&ar->conf_mutex);
}

3475 3476 3477 3478 3479 3480 3481 3482
static int ath10k_sta_state(struct ieee80211_hw *hw,
			    struct ieee80211_vif *vif,
			    struct ieee80211_sta *sta,
			    enum ieee80211_sta_state old_state,
			    enum ieee80211_sta_state new_state)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3483
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
3484
	int max_num_peers;
3485 3486
	int ret = 0;

3487 3488 3489 3490 3491 3492 3493
	if (old_state == IEEE80211_STA_NOTEXIST &&
	    new_state == IEEE80211_STA_NONE) {
		memset(arsta, 0, sizeof(*arsta));
		arsta->arvif = arvif;
		INIT_WORK(&arsta->update_wk, ath10k_sta_rc_update_wk);
	}

3494 3495 3496 3497 3498
	/* cancel must be done outside the mutex to avoid deadlock */
	if ((old_state == IEEE80211_STA_NONE &&
	     new_state == IEEE80211_STA_NOTEXIST))
		cancel_work_sync(&arsta->update_wk);

3499 3500 3501 3502 3503 3504 3505 3506
	mutex_lock(&ar->conf_mutex);

	if (old_state == IEEE80211_STA_NOTEXIST &&
	    new_state == IEEE80211_STA_NONE &&
	    vif->type != NL80211_IFTYPE_STATION) {
		/*
		 * New station addition.
		 */
3507 3508 3509 3510 3511 3512
		if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
			max_num_peers = TARGET_10X_NUM_PEERS_MAX - 1;
		else
			max_num_peers = TARGET_NUM_PEERS;

		if (ar->num_peers >= max_num_peers) {
3513
			ath10k_warn("number of peers exceeded: peers number %d (max peers %d)\n",
3514 3515 3516 3517 3518
				    ar->num_peers, max_num_peers);
			ret = -ENOBUFS;
			goto exit;
		}

K
Kalle Valo 已提交
3519
		ath10k_dbg(ATH10K_DBG_MAC,
3520 3521
			   "mac vdev %d peer create %pM (new sta) num_peers %d\n",
			   arvif->vdev_id, sta->addr, ar->num_peers);
K
Kalle Valo 已提交
3522

3523 3524
		ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
		if (ret)
3525
			ath10k_warn("failed to add peer %pM for vdev %d when adding a new sta: %i\n",
3526
				    sta->addr, arvif->vdev_id, ret);
3527 3528 3529 3530 3531
	} else if ((old_state == IEEE80211_STA_NONE &&
		    new_state == IEEE80211_STA_NOTEXIST)) {
		/*
		 * Existing station deletion.
		 */
K
Kalle Valo 已提交
3532 3533 3534
		ath10k_dbg(ATH10K_DBG_MAC,
			   "mac vdev %d peer delete %pM (sta gone)\n",
			   arvif->vdev_id, sta->addr);
3535 3536
		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
		if (ret)
3537
			ath10k_warn("failed to delete peer %pM for vdev %d: %i\n",
3538
				    sta->addr, arvif->vdev_id, ret);
3539 3540 3541 3542 3543 3544 3545 3546 3547 3548

		if (vif->type == NL80211_IFTYPE_STATION)
			ath10k_bss_disassoc(hw, vif);
	} else if (old_state == IEEE80211_STA_AUTH &&
		   new_state == IEEE80211_STA_ASSOC &&
		   (vif->type == NL80211_IFTYPE_AP ||
		    vif->type == NL80211_IFTYPE_ADHOC)) {
		/*
		 * New association.
		 */
K
Kalle Valo 已提交
3549 3550 3551
		ath10k_dbg(ATH10K_DBG_MAC, "mac sta %pM associated\n",
			   sta->addr);

3552
		ret = ath10k_station_assoc(ar, arvif, sta, false);
3553
		if (ret)
3554
			ath10k_warn("failed to associate station %pM for vdev %i: %i\n",
3555
				    sta->addr, arvif->vdev_id, ret);
3556 3557 3558 3559 3560 3561 3562
	} else if (old_state == IEEE80211_STA_ASSOC &&
		   new_state == IEEE80211_STA_AUTH &&
		   (vif->type == NL80211_IFTYPE_AP ||
		    vif->type == NL80211_IFTYPE_ADHOC)) {
		/*
		 * Disassociation.
		 */
K
Kalle Valo 已提交
3563 3564 3565
		ath10k_dbg(ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
			   sta->addr);

3566 3567
		ret = ath10k_station_disassoc(ar, arvif, sta);
		if (ret)
3568
			ath10k_warn("failed to disassociate station: %pM vdev %i: %i\n",
3569
				    sta->addr, arvif->vdev_id, ret);
3570
	}
3571
exit:
3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
				 u16 ac, bool enable)
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	u32 value = 0;
	int ret = 0;

M
Michal Kazior 已提交
3583 3584
	lockdep_assert_held(&ar->conf_mutex);

3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615
	if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
		return 0;

	switch (ac) {
	case IEEE80211_AC_VO:
		value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
		break;
	case IEEE80211_AC_VI:
		value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
		break;
	case IEEE80211_AC_BE:
		value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
		break;
	case IEEE80211_AC_BK:
		value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
		break;
	}

	if (enable)
		arvif->u.sta.uapsd |= value;
	else
		arvif->u.sta.uapsd &= ~value;

	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
					  WMI_STA_PS_PARAM_UAPSD,
					  arvif->u.sta.uapsd);
	if (ret) {
3616
		ath10k_warn("failed to set uapsd params: %d\n", ret);
3617 3618 3619 3620 3621 3622 3623 3624 3625 3626 3627 3628
		goto exit;
	}

	if (arvif->u.sta.uapsd)
		value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
	else
		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;

	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
					  WMI_STA_PS_PARAM_RX_WAKE_POLICY,
					  value);
	if (ret)
3629
		ath10k_warn("failed to set rx wake param: %d\n", ret);
3630 3631 3632 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 3649 3650 3651 3652 3653 3654 3655 3656 3657 3658 3659 3660 3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678

exit:
	return ret;
}

static int ath10k_conf_tx(struct ieee80211_hw *hw,
			  struct ieee80211_vif *vif, u16 ac,
			  const struct ieee80211_tx_queue_params *params)
{
	struct ath10k *ar = hw->priv;
	struct wmi_wmm_params_arg *p = NULL;
	int ret;

	mutex_lock(&ar->conf_mutex);

	switch (ac) {
	case IEEE80211_AC_VO:
		p = &ar->wmm_params.ac_vo;
		break;
	case IEEE80211_AC_VI:
		p = &ar->wmm_params.ac_vi;
		break;
	case IEEE80211_AC_BE:
		p = &ar->wmm_params.ac_be;
		break;
	case IEEE80211_AC_BK:
		p = &ar->wmm_params.ac_bk;
		break;
	}

	if (WARN_ON(!p)) {
		ret = -EINVAL;
		goto exit;
	}

	p->cwmin = params->cw_min;
	p->cwmax = params->cw_max;
	p->aifs = params->aifs;

	/*
	 * The channel time duration programmed in the HW is in absolute
	 * microseconds, while mac80211 gives the txop in units of
	 * 32 microseconds.
	 */
	p->txop = params->txop * 32;

	/* FIXME: FW accepts wmm params per hw, not per vif */
	ret = ath10k_wmi_pdev_set_wmm_params(ar, &ar->wmm_params);
	if (ret) {
3679
		ath10k_warn("failed to set wmm params: %d\n", ret);
3680 3681 3682 3683 3684
		goto exit;
	}

	ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
	if (ret)
3685
		ath10k_warn("failed to set sta uapsd: %d\n", ret);
3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 3701 3702

exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

#define ATH10K_ROC_TIMEOUT_HZ (2*HZ)

static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
				    struct ieee80211_vif *vif,
				    struct ieee80211_channel *chan,
				    int duration,
				    enum ieee80211_roc_type type)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct wmi_start_scan_arg arg;
3703
	int ret = 0;
3704 3705 3706 3707

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720 3721
	switch (ar->scan.state) {
	case ATH10K_SCAN_IDLE:
		reinit_completion(&ar->scan.started);
		reinit_completion(&ar->scan.completed);
		reinit_completion(&ar->scan.on_channel);
		ar->scan.state = ATH10K_SCAN_STARTING;
		ar->scan.is_roc = true;
		ar->scan.vdev_id = arvif->vdev_id;
		ar->scan.roc_freq = chan->center_freq;
		ret = 0;
		break;
	case ATH10K_SCAN_STARTING:
	case ATH10K_SCAN_RUNNING:
	case ATH10K_SCAN_ABORTING:
3722
		ret = -EBUSY;
3723
		break;
3724 3725 3726
	}
	spin_unlock_bh(&ar->data_lock);

3727 3728 3729
	if (ret)
		goto exit;

3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743
	memset(&arg, 0, sizeof(arg));
	ath10k_wmi_start_scan_init(ar, &arg);
	arg.vdev_id = arvif->vdev_id;
	arg.scan_id = ATH10K_SCAN_ID;
	arg.n_channels = 1;
	arg.channels[0] = chan->center_freq;
	arg.dwell_time_active = duration;
	arg.dwell_time_passive = duration;
	arg.max_scan_time = 2 * duration;
	arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
	arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;

	ret = ath10k_start_scan(ar, &arg);
	if (ret) {
3744
		ath10k_warn("failed to start roc scan: %d\n", ret);
3745
		spin_lock_bh(&ar->data_lock);
3746
		ar->scan.state = ATH10K_SCAN_IDLE;
3747 3748 3749 3750 3751 3752
		spin_unlock_bh(&ar->data_lock);
		goto exit;
	}

	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
	if (ret == 0) {
3753
		ath10k_warn("failed to switch to channel for roc scan\n");
3754 3755 3756 3757 3758

		ret = ath10k_scan_stop(ar);
		if (ret)
			ath10k_warn("failed to stop scan: %d\n", ret);

3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773
		ret = -ETIMEDOUT;
		goto exit;
	}

	ret = 0;
exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;

	mutex_lock(&ar->conf_mutex);
3774 3775
	cancel_delayed_work_sync(&ar->scan.timeout);
	ath10k_scan_abort(ar);
3776 3777 3778 3779 3780 3781 3782 3783 3784 3785
	mutex_unlock(&ar->conf_mutex);

	return 0;
}

/*
 * Both RTS and Fragmentation threshold are interface-specific
 * in ath10k, but device-specific in mac80211.
 */

3786 3787 3788 3789 3790
static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif;
	int ret = 0;
M
Michal Kazior 已提交
3791

3792
	mutex_lock(&ar->conf_mutex);
3793 3794 3795 3796 3797 3798
	list_for_each_entry(arvif, &ar->arvifs, list) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
			   arvif->vdev_id, value);

		ret = ath10k_mac_set_rts(arvif, value);
		if (ret) {
3799
			ath10k_warn("failed to set rts threshold for vdev %d: %d\n",
3800 3801 3802 3803
				    arvif->vdev_id, ret);
			break;
		}
	}
3804 3805
	mutex_unlock(&ar->conf_mutex);

3806
	return ret;
3807 3808
}

3809
static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3810
{
3811 3812 3813
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif;
	int ret = 0;
M
Michal Kazior 已提交
3814

3815
	mutex_lock(&ar->conf_mutex);
3816 3817 3818 3819 3820 3821
	list_for_each_entry(arvif, &ar->arvifs, list) {
		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d fragmentation threshold %d\n",
			   arvif->vdev_id, value);

		ret = ath10k_mac_set_rts(arvif, value);
		if (ret) {
3822
			ath10k_warn("failed to set fragmentation threshold for vdev %d: %d\n",
3823 3824 3825 3826
				    arvif->vdev_id, ret);
			break;
		}
	}
3827 3828
	mutex_unlock(&ar->conf_mutex);

3829
	return ret;
3830 3831
}

3832 3833
static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
			 u32 queues, bool drop)
3834 3835
{
	struct ath10k *ar = hw->priv;
3836
	bool skip;
3837 3838 3839 3840 3841 3842 3843
	int ret;

	/* mac80211 doesn't care if we really xmit queued frames or not
	 * we'll collect those frames either way if we stop/delete vdevs */
	if (drop)
		return;

M
Michal Kazior 已提交
3844 3845
	mutex_lock(&ar->conf_mutex);

3846 3847 3848
	if (ar->state == ATH10K_STATE_WEDGED)
		goto skip;

3849
	ret = wait_event_timeout(ar->htt.empty_tx_wq, ({
3850
			bool empty;
3851

3852
			spin_lock_bh(&ar->htt.tx_lock);
3853
			empty = (ar->htt.num_pending_tx == 0);
3854
			spin_unlock_bh(&ar->htt.tx_lock);
3855 3856 3857 3858

			skip = (ar->state == ATH10K_STATE_WEDGED);

			(empty || skip);
3859
		}), ATH10K_FLUSH_TIMEOUT_HZ);
3860 3861

	if (ret <= 0 || skip)
3862
		ath10k_warn("failed to flush transmit queue (skip %i ar-state %i): %i\n",
3863
			    skip, ar->state, ret);
M
Michal Kazior 已提交
3864

3865
skip:
M
Michal Kazior 已提交
3866
	mutex_unlock(&ar->conf_mutex);
3867 3868 3869 3870 3871 3872 3873 3874 3875 3876 3877
}

/* TODO: Implement this function properly
 * For now it is needed to reply to Probe Requests in IBSS mode.
 * Propably we need this information from FW.
 */
static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
{
	return 1;
}

M
Michal Kazior 已提交
3878 3879 3880 3881 3882 3883 3884
#ifdef CONFIG_PM
static int ath10k_suspend(struct ieee80211_hw *hw,
			  struct cfg80211_wowlan *wowlan)
{
	struct ath10k *ar = hw->priv;
	int ret;

3885 3886
	mutex_lock(&ar->conf_mutex);

3887
	ret = ath10k_wait_for_suspend(ar, WMI_PDEV_SUSPEND);
M
Michal Kazior 已提交
3888
	if (ret) {
3889 3890
		if (ret == -ETIMEDOUT)
			goto resume;
3891 3892
		ret = 1;
		goto exit;
M
Michal Kazior 已提交
3893 3894 3895 3896
	}

	ret = ath10k_hif_suspend(ar);
	if (ret) {
3897
		ath10k_warn("failed to suspend hif: %d\n", ret);
M
Michal Kazior 已提交
3898 3899 3900
		goto resume;
	}

3901 3902
	ret = 0;
	goto exit;
M
Michal Kazior 已提交
3903 3904 3905
resume:
	ret = ath10k_wmi_pdev_resume_target(ar);
	if (ret)
3906
		ath10k_warn("failed to resume target: %d\n", ret);
3907 3908 3909 3910 3911

	ret = 1;
exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
M
Michal Kazior 已提交
3912 3913 3914 3915 3916 3917 3918
}

static int ath10k_resume(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;
	int ret;

3919 3920
	mutex_lock(&ar->conf_mutex);

M
Michal Kazior 已提交
3921 3922
	ret = ath10k_hif_resume(ar);
	if (ret) {
3923
		ath10k_warn("failed to resume hif: %d\n", ret);
3924 3925
		ret = 1;
		goto exit;
M
Michal Kazior 已提交
3926 3927 3928 3929
	}

	ret = ath10k_wmi_pdev_resume_target(ar);
	if (ret) {
3930
		ath10k_warn("failed to resume target: %d\n", ret);
3931 3932
		ret = 1;
		goto exit;
M
Michal Kazior 已提交
3933 3934
	}

3935 3936 3937 3938
	ret = 0;
exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
M
Michal Kazior 已提交
3939 3940 3941
}
#endif

3942 3943 3944 3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957
static void ath10k_restart_complete(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;

	mutex_lock(&ar->conf_mutex);

	/* If device failed to restart it will be in a different state, e.g.
	 * ATH10K_STATE_WEDGED */
	if (ar->state == ATH10K_STATE_RESTARTED) {
		ath10k_info("device successfully recovered\n");
		ar->state = ATH10K_STATE_ON;
	}

	mutex_unlock(&ar->conf_mutex);
}

M
Michal Kazior 已提交
3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992
static int ath10k_get_survey(struct ieee80211_hw *hw, int idx,
			     struct survey_info *survey)
{
	struct ath10k *ar = hw->priv;
	struct ieee80211_supported_band *sband;
	struct survey_info *ar_survey = &ar->survey[idx];
	int ret = 0;

	mutex_lock(&ar->conf_mutex);

	sband = hw->wiphy->bands[IEEE80211_BAND_2GHZ];
	if (sband && idx >= sband->n_channels) {
		idx -= sband->n_channels;
		sband = NULL;
	}

	if (!sband)
		sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];

	if (!sband || idx >= sband->n_channels) {
		ret = -ENOENT;
		goto exit;
	}

	spin_lock_bh(&ar->data_lock);
	memcpy(survey, ar_survey, sizeof(*survey));
	spin_unlock_bh(&ar->data_lock);

	survey->channel = &sband->channels[idx];

exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

3993 3994 3995 3996 3997 3998 3999 4000 4001 4002 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220 4221 4222 4223 4224 4225 4226 4227 4228
/* Helper table for legacy fixed_rate/bitrate_mask */
static const u8 cck_ofdm_rate[] = {
	/* CCK */
	3, /* 1Mbps */
	2, /* 2Mbps */
	1, /* 5.5Mbps */
	0, /* 11Mbps */
	/* OFDM */
	3, /* 6Mbps */
	7, /* 9Mbps */
	2, /* 12Mbps */
	6, /* 18Mbps */
	1, /* 24Mbps */
	5, /* 36Mbps */
	0, /* 48Mbps */
	4, /* 54Mbps */
};

/* Check if only one bit set */
static int ath10k_check_single_mask(u32 mask)
{
	int bit;

	bit = ffs(mask);
	if (!bit)
		return 0;

	mask &= ~BIT(bit - 1);
	if (mask)
		return 2;

	return 1;
}

static bool
ath10k_default_bitrate_mask(struct ath10k *ar,
			    enum ieee80211_band band,
			    const struct cfg80211_bitrate_mask *mask)
{
	u32 legacy = 0x00ff;
	u8 ht = 0xff, i;
	u16 vht = 0x3ff;

	switch (band) {
	case IEEE80211_BAND_2GHZ:
		legacy = 0x00fff;
		vht = 0;
		break;
	case IEEE80211_BAND_5GHZ:
		break;
	default:
		return false;
	}

	if (mask->control[band].legacy != legacy)
		return false;

	for (i = 0; i < ar->num_rf_chains; i++)
		if (mask->control[band].ht_mcs[i] != ht)
			return false;

	for (i = 0; i < ar->num_rf_chains; i++)
		if (mask->control[band].vht_mcs[i] != vht)
			return false;

	return true;
}

static bool
ath10k_bitrate_mask_nss(const struct cfg80211_bitrate_mask *mask,
			enum ieee80211_band band,
			u8 *fixed_nss)
{
	int ht_nss = 0, vht_nss = 0, i;

	/* check legacy */
	if (ath10k_check_single_mask(mask->control[band].legacy))
		return false;

	/* check HT */
	for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) {
		if (mask->control[band].ht_mcs[i] == 0xff)
			continue;
		else if (mask->control[band].ht_mcs[i] == 0x00)
			break;
		else
			return false;
	}

	ht_nss = i;

	/* check VHT */
	for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
		if (mask->control[band].vht_mcs[i] == 0x03ff)
			continue;
		else if (mask->control[band].vht_mcs[i] == 0x0000)
			break;
		else
			return false;
	}

	vht_nss = i;

	if (ht_nss > 0 && vht_nss > 0)
		return false;

	if (ht_nss)
		*fixed_nss = ht_nss;
	else if (vht_nss)
		*fixed_nss = vht_nss;
	else
		return false;

	return true;
}

static bool
ath10k_bitrate_mask_correct(const struct cfg80211_bitrate_mask *mask,
			    enum ieee80211_band band,
			    enum wmi_rate_preamble *preamble)
{
	int legacy = 0, ht = 0, vht = 0, i;

	*preamble = WMI_RATE_PREAMBLE_OFDM;

	/* check legacy */
	legacy = ath10k_check_single_mask(mask->control[band].legacy);
	if (legacy > 1)
		return false;

	/* check HT */
	for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
		ht += ath10k_check_single_mask(mask->control[band].ht_mcs[i]);
	if (ht > 1)
		return false;

	/* check VHT */
	for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
		vht += ath10k_check_single_mask(mask->control[band].vht_mcs[i]);
	if (vht > 1)
		return false;

	/* Currently we support only one fixed_rate */
	if ((legacy + ht + vht) != 1)
		return false;

	if (ht)
		*preamble = WMI_RATE_PREAMBLE_HT;
	else if (vht)
		*preamble = WMI_RATE_PREAMBLE_VHT;

	return true;
}

static bool
ath10k_bitrate_mask_rate(const struct cfg80211_bitrate_mask *mask,
			 enum ieee80211_band band,
			 u8 *fixed_rate,
			 u8 *fixed_nss)
{
	u8 rate = 0, pream = 0, nss = 0, i;
	enum wmi_rate_preamble preamble;

	/* Check if single rate correct */
	if (!ath10k_bitrate_mask_correct(mask, band, &preamble))
		return false;

	pream = preamble;

	switch (preamble) {
	case WMI_RATE_PREAMBLE_CCK:
	case WMI_RATE_PREAMBLE_OFDM:
		i = ffs(mask->control[band].legacy) - 1;

		if (band == IEEE80211_BAND_2GHZ && i < 4)
			pream = WMI_RATE_PREAMBLE_CCK;

		if (band == IEEE80211_BAND_5GHZ)
			i += 4;

		if (i >= ARRAY_SIZE(cck_ofdm_rate))
			return false;

		rate = cck_ofdm_rate[i];
		break;
	case WMI_RATE_PREAMBLE_HT:
		for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
			if (mask->control[band].ht_mcs[i])
				break;

		if (i == IEEE80211_HT_MCS_MASK_LEN)
			return false;

		rate = ffs(mask->control[band].ht_mcs[i]) - 1;
		nss = i;
		break;
	case WMI_RATE_PREAMBLE_VHT:
		for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
			if (mask->control[band].vht_mcs[i])
				break;

		if (i == NL80211_VHT_NSS_MAX)
			return false;

		rate = ffs(mask->control[band].vht_mcs[i]) - 1;
		nss = i;
		break;
	}

	*fixed_nss = nss + 1;
	nss <<= 4;
	pream <<= 6;

	ath10k_dbg(ATH10K_DBG_MAC, "mac fixed rate pream 0x%02x nss 0x%02x rate 0x%02x\n",
		   pream, nss, rate);

	*fixed_rate = pream | nss | rate;

	return true;
}

static bool ath10k_get_fixed_rate_nss(const struct cfg80211_bitrate_mask *mask,
				      enum ieee80211_band band,
				      u8 *fixed_rate,
				      u8 *fixed_nss)
{
	/* First check full NSS mask, if we can simply limit NSS */
	if (ath10k_bitrate_mask_nss(mask, band, fixed_nss))
		return true;

	/* Next Check single rate is set */
	return ath10k_bitrate_mask_rate(mask, band, fixed_rate, fixed_nss);
}

static int ath10k_set_fixed_rate_param(struct ath10k_vif *arvif,
				       u8 fixed_rate,
4229 4230
				       u8 fixed_nss,
				       u8 force_sgi)
4231 4232 4233 4234 4235 4236 4237 4238
{
	struct ath10k *ar = arvif->ar;
	u32 vdev_param;
	int ret = 0;

	mutex_lock(&ar->conf_mutex);

	if (arvif->fixed_rate == fixed_rate &&
4239 4240
	    arvif->fixed_nss == fixed_nss &&
	    arvif->force_sgi == force_sgi)
4241 4242 4243 4244 4245
		goto exit;

	if (fixed_rate == WMI_FIXED_RATE_NONE)
		ath10k_dbg(ATH10K_DBG_MAC, "mac disable fixed bitrate mask\n");

4246 4247 4248
	if (force_sgi)
		ath10k_dbg(ATH10K_DBG_MAC, "mac force sgi\n");

4249 4250 4251 4252
	vdev_param = ar->wmi.vdev_param->fixed_rate;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
					vdev_param, fixed_rate);
	if (ret) {
4253
		ath10k_warn("failed to set fixed rate param 0x%02x: %d\n",
4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265
			    fixed_rate, ret);
		ret = -EINVAL;
		goto exit;
	}

	arvif->fixed_rate = fixed_rate;

	vdev_param = ar->wmi.vdev_param->nss;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
					vdev_param, fixed_nss);

	if (ret) {
4266
		ath10k_warn("failed to set fixed nss param %d: %d\n",
4267 4268 4269 4270 4271 4272 4273
			    fixed_nss, ret);
		ret = -EINVAL;
		goto exit;
	}

	arvif->fixed_nss = fixed_nss;

4274 4275 4276 4277 4278
	vdev_param = ar->wmi.vdev_param->sgi;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
					force_sgi);

	if (ret) {
4279
		ath10k_warn("failed to set sgi param %d: %d\n",
4280 4281 4282 4283 4284 4285 4286
			    force_sgi, ret);
		ret = -EINVAL;
		goto exit;
	}

	arvif->force_sgi = force_sgi;

4287 4288 4289 4290 4291 4292 4293 4294 4295 4296 4297 4298 4299 4300
exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static int ath10k_set_bitrate_mask(struct ieee80211_hw *hw,
				   struct ieee80211_vif *vif,
				   const struct cfg80211_bitrate_mask *mask)
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct ath10k *ar = arvif->ar;
	enum ieee80211_band band = ar->hw->conf.chandef.chan->band;
	u8 fixed_rate = WMI_FIXED_RATE_NONE;
	u8 fixed_nss = ar->num_rf_chains;
4301 4302 4303 4304 4305
	u8 force_sgi;

	force_sgi = mask->control[band].gi;
	if (force_sgi == NL80211_TXRATE_FORCE_LGI)
		return -EINVAL;
4306 4307 4308 4309 4310 4311 4312 4313

	if (!ath10k_default_bitrate_mask(ar, band, mask)) {
		if (!ath10k_get_fixed_rate_nss(mask, band,
					       &fixed_rate,
					       &fixed_nss))
			return -EINVAL;
	}

4314
	if (fixed_rate == WMI_FIXED_RATE_NONE && force_sgi) {
4315
		ath10k_warn("failed to force SGI usage for default rate settings\n");
4316 4317 4318 4319 4320
		return -EINVAL;
	}

	return ath10k_set_fixed_rate_param(arvif, fixed_rate,
					   fixed_nss, force_sgi);
4321 4322
}

4323 4324 4325 4326 4327 4328 4329 4330 4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352
static void ath10k_sta_rc_update(struct ieee80211_hw *hw,
				 struct ieee80211_vif *vif,
				 struct ieee80211_sta *sta,
				 u32 changed)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
	u32 bw, smps;

	spin_lock_bh(&ar->data_lock);

	ath10k_dbg(ATH10K_DBG_MAC,
		   "mac sta rc update for %pM changed %08x bw %d nss %d smps %d\n",
		   sta->addr, changed, sta->bandwidth, sta->rx_nss,
		   sta->smps_mode);

	if (changed & IEEE80211_RC_BW_CHANGED) {
		bw = WMI_PEER_CHWIDTH_20MHZ;

		switch (sta->bandwidth) {
		case IEEE80211_STA_RX_BW_20:
			bw = WMI_PEER_CHWIDTH_20MHZ;
			break;
		case IEEE80211_STA_RX_BW_40:
			bw = WMI_PEER_CHWIDTH_40MHZ;
			break;
		case IEEE80211_STA_RX_BW_80:
			bw = WMI_PEER_CHWIDTH_80MHZ;
			break;
		case IEEE80211_STA_RX_BW_160:
4353 4354
			ath10k_warn("Invalid bandwith %d in rc update for %pM\n",
				    sta->bandwidth, sta->addr);
4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379
			bw = WMI_PEER_CHWIDTH_20MHZ;
			break;
		}

		arsta->bw = bw;
	}

	if (changed & IEEE80211_RC_NSS_CHANGED)
		arsta->nss = sta->rx_nss;

	if (changed & IEEE80211_RC_SMPS_CHANGED) {
		smps = WMI_PEER_SMPS_PS_NONE;

		switch (sta->smps_mode) {
		case IEEE80211_SMPS_AUTOMATIC:
		case IEEE80211_SMPS_OFF:
			smps = WMI_PEER_SMPS_PS_NONE;
			break;
		case IEEE80211_SMPS_STATIC:
			smps = WMI_PEER_SMPS_STATIC;
			break;
		case IEEE80211_SMPS_DYNAMIC:
			smps = WMI_PEER_SMPS_DYNAMIC;
			break;
		case IEEE80211_SMPS_NUM_MODES:
4380 4381
			ath10k_warn("Invalid smps %d in sta rc update for %pM\n",
				    sta->smps_mode, sta->addr);
4382 4383 4384 4385 4386 4387 4388 4389 4390 4391 4392 4393 4394 4395
			smps = WMI_PEER_SMPS_PS_NONE;
			break;
		}

		arsta->smps = smps;
	}

	arsta->changed |= changed;

	spin_unlock_bh(&ar->data_lock);

	ieee80211_queue_work(hw, &arsta->update_wk);
}

4396 4397 4398 4399 4400 4401 4402 4403 4404 4405
static u64 ath10k_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
{
	/*
	 * FIXME: Return 0 for time being. Need to figure out whether FW
	 * has the API to fetch 64-bit local TSF
	 */

	return 0;
}

4406 4407 4408 4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419 4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437
static int ath10k_ampdu_action(struct ieee80211_hw *hw,
			       struct ieee80211_vif *vif,
			       enum ieee80211_ampdu_mlme_action action,
			       struct ieee80211_sta *sta, u16 tid, u16 *ssn,
			       u8 buf_size)
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

	ath10k_dbg(ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
		   arvif->vdev_id, sta->addr, tid, action);

	switch (action) {
	case IEEE80211_AMPDU_RX_START:
	case IEEE80211_AMPDU_RX_STOP:
		/* HTT AddBa/DelBa events trigger mac80211 Rx BA session
		 * creation/removal. Do we need to verify this?
		 */
		return 0;
	case IEEE80211_AMPDU_TX_START:
	case IEEE80211_AMPDU_TX_STOP_CONT:
	case IEEE80211_AMPDU_TX_STOP_FLUSH:
	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
	case IEEE80211_AMPDU_TX_OPERATIONAL:
		/* Firmware offloads Tx aggregation entirely so deny mac80211
		 * Tx aggregation requests.
		 */
		return -EOPNOTSUPP;
	}

	return -EINVAL;
}

4438 4439 4440 4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457
static const struct ieee80211_ops ath10k_ops = {
	.tx				= ath10k_tx,
	.start				= ath10k_start,
	.stop				= ath10k_stop,
	.config				= ath10k_config,
	.add_interface			= ath10k_add_interface,
	.remove_interface		= ath10k_remove_interface,
	.configure_filter		= ath10k_configure_filter,
	.bss_info_changed		= ath10k_bss_info_changed,
	.hw_scan			= ath10k_hw_scan,
	.cancel_hw_scan			= ath10k_cancel_hw_scan,
	.set_key			= ath10k_set_key,
	.sta_state			= ath10k_sta_state,
	.conf_tx			= ath10k_conf_tx,
	.remain_on_channel		= ath10k_remain_on_channel,
	.cancel_remain_on_channel	= ath10k_cancel_remain_on_channel,
	.set_rts_threshold		= ath10k_set_rts_threshold,
	.set_frag_threshold		= ath10k_set_frag_threshold,
	.flush				= ath10k_flush,
	.tx_last_beacon			= ath10k_tx_last_beacon,
4458 4459
	.set_antenna			= ath10k_set_antenna,
	.get_antenna			= ath10k_get_antenna,
4460
	.restart_complete		= ath10k_restart_complete,
M
Michal Kazior 已提交
4461
	.get_survey			= ath10k_get_survey,
4462
	.set_bitrate_mask		= ath10k_set_bitrate_mask,
4463
	.sta_rc_update			= ath10k_sta_rc_update,
4464
	.get_tsf			= ath10k_get_tsf,
4465
	.ampdu_action			= ath10k_ampdu_action,
M
Michal Kazior 已提交
4466 4467 4468 4469
#ifdef CONFIG_PM
	.suspend			= ath10k_suspend,
	.resume				= ath10k_resume,
#endif
4470 4471 4472 4473 4474 4475 4476 4477 4478 4479 4480 4481 4482 4483 4484 4485 4486 4487 4488 4489 4490 4491 4492 4493 4494 4495 4496 4497 4498 4499 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513
};

#define RATETAB_ENT(_rate, _rateid, _flags) { \
	.bitrate		= (_rate), \
	.flags			= (_flags), \
	.hw_value		= (_rateid), \
}

#define CHAN2G(_channel, _freq, _flags) { \
	.band			= IEEE80211_BAND_2GHZ, \
	.hw_value		= (_channel), \
	.center_freq		= (_freq), \
	.flags			= (_flags), \
	.max_antenna_gain	= 0, \
	.max_power		= 30, \
}

#define CHAN5G(_channel, _freq, _flags) { \
	.band			= IEEE80211_BAND_5GHZ, \
	.hw_value		= (_channel), \
	.center_freq		= (_freq), \
	.flags			= (_flags), \
	.max_antenna_gain	= 0, \
	.max_power		= 30, \
}

static const struct ieee80211_channel ath10k_2ghz_channels[] = {
	CHAN2G(1, 2412, 0),
	CHAN2G(2, 2417, 0),
	CHAN2G(3, 2422, 0),
	CHAN2G(4, 2427, 0),
	CHAN2G(5, 2432, 0),
	CHAN2G(6, 2437, 0),
	CHAN2G(7, 2442, 0),
	CHAN2G(8, 2447, 0),
	CHAN2G(9, 2452, 0),
	CHAN2G(10, 2457, 0),
	CHAN2G(11, 2462, 0),
	CHAN2G(12, 2467, 0),
	CHAN2G(13, 2472, 0),
	CHAN2G(14, 2484, 0),
};

static const struct ieee80211_channel ath10k_5ghz_channels[] = {
4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 4526 4527 4528 4529 4530 4531 4532 4533 4534 4535 4536 4537
	CHAN5G(36, 5180, 0),
	CHAN5G(40, 5200, 0),
	CHAN5G(44, 5220, 0),
	CHAN5G(48, 5240, 0),
	CHAN5G(52, 5260, 0),
	CHAN5G(56, 5280, 0),
	CHAN5G(60, 5300, 0),
	CHAN5G(64, 5320, 0),
	CHAN5G(100, 5500, 0),
	CHAN5G(104, 5520, 0),
	CHAN5G(108, 5540, 0),
	CHAN5G(112, 5560, 0),
	CHAN5G(116, 5580, 0),
	CHAN5G(120, 5600, 0),
	CHAN5G(124, 5620, 0),
	CHAN5G(128, 5640, 0),
	CHAN5G(132, 5660, 0),
	CHAN5G(136, 5680, 0),
	CHAN5G(140, 5700, 0),
	CHAN5G(149, 5745, 0),
	CHAN5G(153, 5765, 0),
	CHAN5G(157, 5785, 0),
	CHAN5G(161, 5805, 0),
	CHAN5G(165, 5825, 0),
4538 4539 4540 4541 4542 4543 4544 4545 4546 4547 4548 4549 4550 4551 4552 4553 4554 4555 4556 4557 4558 4559 4560 4561
};

static struct ieee80211_rate ath10k_rates[] = {
	/* CCK */
	RATETAB_ENT(10,  0x82, 0),
	RATETAB_ENT(20,  0x84, 0),
	RATETAB_ENT(55,  0x8b, 0),
	RATETAB_ENT(110, 0x96, 0),
	/* OFDM */
	RATETAB_ENT(60,  0x0c, 0),
	RATETAB_ENT(90,  0x12, 0),
	RATETAB_ENT(120, 0x18, 0),
	RATETAB_ENT(180, 0x24, 0),
	RATETAB_ENT(240, 0x30, 0),
	RATETAB_ENT(360, 0x48, 0),
	RATETAB_ENT(480, 0x60, 0),
	RATETAB_ENT(540, 0x6c, 0),
};

#define ath10k_a_rates (ath10k_rates + 4)
#define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - 4)
#define ath10k_g_rates (ath10k_rates + 0)
#define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))

M
Michal Kazior 已提交
4562
struct ath10k *ath10k_mac_create(size_t priv_size)
4563 4564 4565 4566
{
	struct ieee80211_hw *hw;
	struct ath10k *ar;

M
Michal Kazior 已提交
4567
	hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, &ath10k_ops);
4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586
	if (!hw)
		return NULL;

	ar = hw->priv;
	ar->hw = hw;

	return ar;
}

void ath10k_mac_destroy(struct ath10k *ar)
{
	ieee80211_free_hw(ar->hw);
}

static const struct ieee80211_iface_limit ath10k_if_limits[] = {
	{
	.max	= 8,
	.types	= BIT(NL80211_IFTYPE_STATION)
		| BIT(NL80211_IFTYPE_P2P_CLIENT)
4587 4588 4589 4590 4591 4592 4593 4594 4595
	},
	{
	.max	= 3,
	.types	= BIT(NL80211_IFTYPE_P2P_GO)
	},
	{
	.max	= 7,
	.types	= BIT(NL80211_IFTYPE_AP)
	},
4596 4597
};

4598
static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
4599 4600 4601 4602 4603 4604 4605 4606 4607 4608 4609 4610 4611 4612
	{
	.max	= 8,
	.types	= BIT(NL80211_IFTYPE_AP)
	},
};

static const struct ieee80211_iface_combination ath10k_if_comb[] = {
	{
		.limits = ath10k_if_limits,
		.n_limits = ARRAY_SIZE(ath10k_if_limits),
		.max_interfaces = 8,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
	},
4613 4614 4615
};

static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
4616
	{
4617 4618
		.limits = ath10k_10x_if_limits,
		.n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
4619 4620 4621
		.max_interfaces = 8,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
4622
#ifdef CONFIG_ATH10K_DFS_CERTIFIED
4623 4624 4625 4626 4627
		.radar_detect_widths =	BIT(NL80211_CHAN_WIDTH_20_NOHT) |
					BIT(NL80211_CHAN_WIDTH_20) |
					BIT(NL80211_CHAN_WIDTH_40) |
					BIT(NL80211_CHAN_WIDTH_80),
#endif
4628
	},
4629 4630 4631 4632 4633 4634
};

static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
	struct ieee80211_sta_vht_cap vht_cap = {0};
	u16 mcs_map;
4635
	int i;
4636 4637 4638 4639

	vht_cap.vht_supported = 1;
	vht_cap.cap = ar->vht_cap_info;

4640 4641 4642 4643 4644 4645 4646
	mcs_map = 0;
	for (i = 0; i < 8; i++) {
		if (i < ar->num_rf_chains)
			mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i*2);
		else
			mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i*2);
	}
4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693 4694 4695 4696 4697 4698 4699 4700 4701 4702 4703 4704 4705 4706 4707 4708

	vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
	vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);

	return vht_cap;
}

static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
{
	int i;
	struct ieee80211_sta_ht_cap ht_cap = {0};

	if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
		return ht_cap;

	ht_cap.ht_supported = 1;
	ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
	ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
	ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
	ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
	ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;

	if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
		ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;

	if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
		ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;

	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
		u32 smps;

		smps   = WLAN_HT_CAP_SM_PS_DYNAMIC;
		smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;

		ht_cap.cap |= smps;
	}

	if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC)
		ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;

	if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
		u32 stbc;

		stbc   = ar->ht_cap_info;
		stbc  &= WMI_HT_CAP_RX_STBC;
		stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
		stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
		stbc  &= IEEE80211_HT_CAP_RX_STBC;

		ht_cap.cap |= stbc;
	}

	if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
		ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;

	if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
		ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;

	/* max AMSDU is implicitly taken from vht_cap_info */
	if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
		ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;

4709
	for (i = 0; i < ar->num_rf_chains; i++)
4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741
		ht_cap.mcs.rx_mask[i] = 0xFF;

	ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;

	return ht_cap;
}


static void ath10k_get_arvif_iter(void *data, u8 *mac,
				  struct ieee80211_vif *vif)
{
	struct ath10k_vif_iter *arvif_iter = data;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

	if (arvif->vdev_id == arvif_iter->vdev_id)
		arvif_iter->arvif = arvif;
}

struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
{
	struct ath10k_vif_iter arvif_iter;
	u32 flags;

	memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
	arvif_iter.vdev_id = vdev_id;

	flags = IEEE80211_IFACE_ITER_RESUME_ALL;
	ieee80211_iterate_active_interfaces_atomic(ar->hw,
						   flags,
						   ath10k_get_arvif_iter,
						   &arvif_iter);
	if (!arvif_iter.arvif) {
4742
		ath10k_warn("No VIF found for vdev %d\n", vdev_id);
4743 4744 4745 4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767
		return NULL;
	}

	return arvif_iter.arvif;
}

int ath10k_mac_register(struct ath10k *ar)
{
	struct ieee80211_supported_band *band;
	struct ieee80211_sta_vht_cap vht_cap;
	struct ieee80211_sta_ht_cap ht_cap;
	void *channels;
	int ret;

	SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);

	SET_IEEE80211_DEV(ar->hw, ar->dev);

	ht_cap = ath10k_get_ht_cap(ar);
	vht_cap = ath10k_create_vht_cap(ar);

	if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
		channels = kmemdup(ath10k_2ghz_channels,
				   sizeof(ath10k_2ghz_channels),
				   GFP_KERNEL);
M
Michal Kazior 已提交
4768 4769 4770 4771
		if (!channels) {
			ret = -ENOMEM;
			goto err_free;
		}
4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 4789

		band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
		band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
		band->channels = channels;
		band->n_bitrates = ath10k_g_rates_size;
		band->bitrates = ath10k_g_rates;
		band->ht_cap = ht_cap;

		/* vht is not supported in 2.4 GHz */

		ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
	}

	if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
		channels = kmemdup(ath10k_5ghz_channels,
				   sizeof(ath10k_5ghz_channels),
				   GFP_KERNEL);
		if (!channels) {
M
Michal Kazior 已提交
4790 4791
			ret = -ENOMEM;
			goto err_free;
4792 4793 4794 4795 4796 4797 4798 4799 4800 4801 4802 4803 4804 4805
		}

		band = &ar->mac.sbands[IEEE80211_BAND_5GHZ];
		band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
		band->channels = channels;
		band->n_bitrates = ath10k_a_rates_size;
		band->bitrates = ath10k_a_rates;
		band->ht_cap = ht_cap;
		band->vht_cap = vht_cap;
		ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
	}

	ar->hw->wiphy->interface_modes =
		BIT(NL80211_IFTYPE_STATION) |
4806 4807
		BIT(NL80211_IFTYPE_AP);

4808 4809 4810 4811 4812 4813 4814 4815 4816 4817 4818 4819
	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
		/* TODO:  Have to deal with 2x2 chips if/when the come out. */
		ar->supp_tx_chainmask = TARGET_10X_TX_CHAIN_MASK;
		ar->supp_rx_chainmask = TARGET_10X_RX_CHAIN_MASK;
	} else {
		ar->supp_tx_chainmask = TARGET_TX_CHAIN_MASK;
		ar->supp_rx_chainmask = TARGET_RX_CHAIN_MASK;
	}

	ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
	ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;

4820 4821 4822 4823
	if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->fw_features))
		ar->hw->wiphy->interface_modes |=
			BIT(NL80211_IFTYPE_P2P_CLIENT) |
			BIT(NL80211_IFTYPE_P2P_GO);
4824 4825 4826 4827 4828 4829 4830 4831 4832

	ar->hw->flags = IEEE80211_HW_SIGNAL_DBM |
			IEEE80211_HW_SUPPORTS_PS |
			IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
			IEEE80211_HW_SUPPORTS_UAPSD |
			IEEE80211_HW_MFP_CAPABLE |
			IEEE80211_HW_REPORTS_TX_ACK_STATUS |
			IEEE80211_HW_HAS_RATE_CONTROL |
			IEEE80211_HW_SUPPORTS_STATIC_SMPS |
4833 4834
			IEEE80211_HW_AP_LINK_PS |
			IEEE80211_HW_SPECTRUM_MGMT;
4835

4836 4837 4838 4839
	/* MSDU can have HTT TX fragment pushed in front. The additional 4
	 * bytes is used for padding/alignment if necessary. */
	ar->hw->extra_tx_headroom += sizeof(struct htt_data_tx_desc_frag)*2 + 4;

4840 4841 4842 4843 4844 4845 4846 4847 4848 4849 4850 4851
	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
		ar->hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;

	if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
		ar->hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
		ar->hw->flags |= IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
	}

	ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
	ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;

	ar->hw->vif_data_size = sizeof(struct ath10k_vif);
4852
	ar->hw->sta_data_size = sizeof(struct ath10k_sta);
4853 4854 4855 4856

	ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;

	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
M
Michal Kazior 已提交
4857
	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
4858 4859 4860 4861 4862 4863 4864 4865 4866
	ar->hw->wiphy->max_remain_on_channel_duration = 5000;

	ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
	/*
	 * on LL hardware queues are managed entirely by the FW
	 * so we only advertise to mac we can do the queues thing
	 */
	ar->hw->queues = 4;

4867 4868 4869 4870 4871 4872 4873 4874
	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
		ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_10x_if_comb);
	} else {
		ar->hw->wiphy->iface_combinations = ath10k_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_if_comb);
4875 4876

		ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
4877
	}
4878

4879 4880
	ar->hw->netdev_features = NETIF_F_HW_CSUM;

J
Janusz Dziedzic 已提交
4881 4882 4883 4884 4885 4886 4887
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED)) {
		/* Init ath dfs pattern detector */
		ar->ath_common.debug_mask = ATH_DBG_DFS;
		ar->dfs_detector = dfs_pattern_detector_init(&ar->ath_common,
							     NL80211_DFS_UNSET);

		if (!ar->dfs_detector)
4888
			ath10k_warn("failed to initialise DFS pattern detector\n");
J
Janusz Dziedzic 已提交
4889 4890
	}

4891 4892 4893
	ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
			    ath10k_reg_notifier);
	if (ret) {
4894
		ath10k_err("failed to initialise regulatory: %i\n", ret);
M
Michal Kazior 已提交
4895
		goto err_free;
4896 4897 4898 4899
	}

	ret = ieee80211_register_hw(ar->hw);
	if (ret) {
4900
		ath10k_err("failed to register ieee80211: %d\n", ret);
M
Michal Kazior 已提交
4901
		goto err_free;
4902 4903 4904 4905 4906 4907
	}

	if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
		ret = regulatory_hint(ar->hw->wiphy,
				      ar->ath_common.regulatory.alpha2);
		if (ret)
M
Michal Kazior 已提交
4908
			goto err_unregister;
4909 4910 4911
	}

	return 0;
M
Michal Kazior 已提交
4912 4913

err_unregister:
4914
	ieee80211_unregister_hw(ar->hw);
M
Michal Kazior 已提交
4915 4916 4917 4918
err_free:
	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);

4919 4920 4921 4922 4923 4924 4925
	return ret;
}

void ath10k_mac_unregister(struct ath10k *ar)
{
	ieee80211_unregister_hw(ar->hw);

J
Janusz Dziedzic 已提交
4926 4927 4928
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
		ar->dfs_detector->exit(ar->dfs_detector);

4929 4930 4931 4932 4933
	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);

	SET_IEEE80211_DEV(ar->hw, NULL);
}