mac.c 178.7 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"
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#include "testmode.h"
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#include "wmi.h"
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#include "wmi-tlv.h"
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#include "wmi-ops.h"
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#include "wow.h"
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/*********/
/* Rates */
/*********/

static struct ieee80211_rate ath10k_rates[] = {
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	{ .bitrate = 10,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_1M },
	{ .bitrate = 20,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_2M,
	  .hw_value_short = ATH10K_HW_RATE_CCK_SP_2M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
	{ .bitrate = 55,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_5_5M,
	  .hw_value_short = ATH10K_HW_RATE_CCK_SP_5_5M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
	{ .bitrate = 110,
	  .hw_value = ATH10K_HW_RATE_CCK_LP_11M,
	  .hw_value_short = ATH10K_HW_RATE_CCK_SP_11M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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	{ .bitrate = 60, .hw_value = ATH10K_HW_RATE_OFDM_6M },
	{ .bitrate = 90, .hw_value = ATH10K_HW_RATE_OFDM_9M },
	{ .bitrate = 120, .hw_value = ATH10K_HW_RATE_OFDM_12M },
	{ .bitrate = 180, .hw_value = ATH10K_HW_RATE_OFDM_18M },
	{ .bitrate = 240, .hw_value = ATH10K_HW_RATE_OFDM_24M },
	{ .bitrate = 360, .hw_value = ATH10K_HW_RATE_OFDM_36M },
	{ .bitrate = 480, .hw_value = ATH10K_HW_RATE_OFDM_48M },
	{ .bitrate = 540, .hw_value = ATH10K_HW_RATE_OFDM_54M },
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};

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#define ATH10K_MAC_FIRST_OFDM_RATE_IDX 4

#define ath10k_a_rates (ath10k_rates + ATH10K_MAC_FIRST_OFDM_RATE_IDX)
#define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - \
			     ATH10K_MAC_FIRST_OFDM_RATE_IDX)
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#define ath10k_g_rates (ath10k_rates + 0)
#define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))

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static bool ath10k_mac_bitrate_is_cck(int bitrate)
{
	switch (bitrate) {
	case 10:
	case 20:
	case 55:
	case 110:
		return true;
	}

	return false;
}

static u8 ath10k_mac_bitrate_to_rate(int bitrate)
{
	return DIV_ROUND_UP(bitrate, 5) |
	       (ath10k_mac_bitrate_is_cck(bitrate) ? BIT(7) : 0);
}

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u8 ath10k_mac_hw_rate_to_idx(const struct ieee80211_supported_band *sband,
			     u8 hw_rate)
{
	const struct ieee80211_rate *rate;
	int i;

	for (i = 0; i < sband->n_bitrates; i++) {
		rate = &sband->bitrates[i];

		if (rate->hw_value == hw_rate)
			return i;
		else if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE &&
			 rate->hw_value_short == hw_rate)
			return i;
	}

	return 0;
}

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u8 ath10k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband,
			     u32 bitrate)
{
	int i;

	for (i = 0; i < sband->n_bitrates; i++)
		if (sband->bitrates[i].bitrate == bitrate)
			return i;

	return 0;
}

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static int ath10k_mac_get_max_vht_mcs_map(u16 mcs_map, int nss)
{
	switch ((mcs_map >> (2 * nss)) & 0x3) {
	case IEEE80211_VHT_MCS_SUPPORT_0_7: return BIT(8) - 1;
	case IEEE80211_VHT_MCS_SUPPORT_0_8: return BIT(9) - 1;
	case IEEE80211_VHT_MCS_SUPPORT_0_9: return BIT(10) - 1;
	}
	return 0;
}

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static u32
ath10k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
{
	int nss;

	for (nss = IEEE80211_HT_MCS_MASK_LEN - 1; nss >= 0; nss--)
		if (ht_mcs_mask[nss])
			return nss + 1;

	return 1;
}

static u32
ath10k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
{
	int nss;

	for (nss = NL80211_VHT_NSS_MAX - 1; nss >= 0; nss--)
		if (vht_mcs_mask[nss])
			return nss + 1;

	return 1;
}
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/**********/
/* Crypto */
/**********/

static int ath10k_send_key(struct ath10k_vif *arvif,
			   struct ieee80211_key_conf *key,
			   enum set_key_cmd cmd,
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			   const u8 *macaddr, u32 flags)
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{
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	struct ath10k *ar = arvif->ar;
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	struct wmi_vdev_install_key_arg arg = {
		.vdev_id = arvif->vdev_id,
		.key_idx = key->keyidx,
		.key_len = key->keylen,
		.key_data = key->key,
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		.key_flags = flags,
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		.macaddr = macaddr,
	};

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

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	switch (key->cipher) {
	case WLAN_CIPHER_SUITE_CCMP:
		arg.key_cipher = WMI_CIPHER_AES_CCM;
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		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV_MGMT;
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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;
		break;
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	case WLAN_CIPHER_SUITE_AES_CMAC:
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		WARN_ON(1);
		return -EINVAL;
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	default:
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		ath10k_warn(ar, "cipher %d is not supported\n", key->cipher);
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		return -EOPNOTSUPP;
	}

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	if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
		key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
	}

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	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,
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			      const u8 *macaddr, u32 flags)
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{
	struct ath10k *ar = arvif->ar;
	int ret;
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	unsigned long time_left;
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	lockdep_assert_held(&ar->conf_mutex);

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	reinit_completion(&ar->install_key_done);
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	if (arvif->nohwcrypt)
		return 1;

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	ret = ath10k_send_key(arvif, key, cmd, macaddr, flags);
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	if (ret)
		return ret;

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	time_left = wait_for_completion_timeout(&ar->install_key_done, 3 * HZ);
	if (time_left == 0)
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		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;
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	u32 flags;
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	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;
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		flags = 0;
		flags |= WMI_KEY_PAIRWISE;

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		ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
					 addr, flags);
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		if (ret < 0)
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			return ret;

		flags = 0;
		flags |= WMI_KEY_GROUP;
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		ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
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					 addr, flags);
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		if (ret < 0)
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			return ret;

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		spin_lock_bh(&ar->data_lock);
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		peer->keys[i] = arvif->wep_keys[i];
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		spin_unlock_bh(&ar->data_lock);
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	}

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	/* In some cases (notably with static WEP IBSS with multiple keys)
	 * multicast Tx becomes broken. Both pairwise and groupwise keys are
	 * installed already. Using WMI_KEY_TX_USAGE in different combinations
	 * didn't seem help. Using def_keyid vdev parameter seems to be
	 * effective so use that.
	 *
	 * FIXME: Revisit. Perhaps this can be done in a less hacky way.
	 */
	if (arvif->def_wep_key_idx == -1)
		return 0;

	ret = ath10k_wmi_vdev_set_param(arvif->ar,
					arvif->vdev_id,
					arvif->ar->wmi.vdev_param->def_keyid,
					arvif->def_wep_key_idx);
	if (ret) {
		ath10k_warn(ar, "failed to re-set def wpa key idxon vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

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	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;
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	u32 flags = 0;
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	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;

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		/* key flags are not required to delete the key */
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		ret = ath10k_install_key(arvif, peer->keys[i],
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					 DISABLE_KEY, addr, flags);
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		if (ret < 0 && first_errno == 0)
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			first_errno = ret;

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		if (ret < 0)
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			ath10k_warn(ar, "failed to remove peer wep key %d: %d\n",
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				    i, ret);

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		spin_lock_bh(&ar->data_lock);
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		peer->keys[i] = NULL;
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		spin_unlock_bh(&ar->data_lock);
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	}

	return first_errno;
}

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bool ath10k_mac_is_peer_wep_key_set(struct ath10k *ar, const u8 *addr,
				    u8 keyidx)
{
	struct ath10k_peer *peer;
	int i;

	lockdep_assert_held(&ar->data_lock);

	/* We don't know which vdev this peer belongs to,
	 * since WMI doesn't give us that information.
	 *
	 * FIXME: multi-bss needs to be handled.
	 */
	peer = ath10k_peer_find(ar, 0, addr);
	if (!peer)
		return false;

	for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
		if (peer->keys[i] && peer->keys[i]->keyidx == keyidx)
			return true;
	}

	return false;
}

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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;
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	u32 flags = 0;
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	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) {
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					ether_addr_copy(addr, peer->addr);
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					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;
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		/* key flags are not required to delete the key */
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		ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr, flags);
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		if (ret < 0 && first_errno == 0)
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			first_errno = ret;

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

	return first_errno;
}

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static int ath10k_mac_vif_update_wep_key(struct ath10k_vif *arvif,
					 struct ieee80211_key_conf *key)
{
	struct ath10k *ar = arvif->ar;
	struct ath10k_peer *peer;
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	list_for_each_entry(peer, &ar->peers, list) {
		if (!memcmp(peer->addr, arvif->vif->addr, ETH_ALEN))
			continue;

		if (!memcmp(peer->addr, arvif->bssid, ETH_ALEN))
			continue;

		if (peer->keys[key->keyidx] == key)
			continue;

		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vif vdev %i update key %i needs update\n",
			   arvif->vdev_id, key->keyidx);

		ret = ath10k_install_peer_wep_keys(arvif, peer->addr);
		if (ret) {
			ath10k_warn(ar, "failed to update wep keys on vdev %i for peer %pM: %d\n",
				    arvif->vdev_id, peer->addr, ret);
			return ret;
		}
	}

	return 0;
}

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/*********************/
/* 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:
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			if (chandef->chan->flags & IEEE80211_CHAN_NO_OFDM)
				phymode = MODE_11B;
			else
				phymode = MODE_11G;
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			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;
	}
}

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int ath10k_mac_vif_chan(struct ieee80211_vif *vif,
			struct cfg80211_chan_def *def)
{
	struct ieee80211_chanctx_conf *conf;

	rcu_read_lock();
	conf = rcu_dereference(vif->chanctx_conf);
	if (!conf) {
		rcu_read_unlock();
		return -ENOENT;
	}

	*def = conf->def;
	rcu_read_unlock();

	return 0;
}

static void ath10k_mac_num_chanctxs_iter(struct ieee80211_hw *hw,
					 struct ieee80211_chanctx_conf *conf,
					 void *data)
{
	int *num = data;

	(*num)++;
}

static int ath10k_mac_num_chanctxs(struct ath10k *ar)
{
	int num = 0;

	ieee80211_iter_chan_contexts_atomic(ar->hw,
					    ath10k_mac_num_chanctxs_iter,
					    &num);

	return num;
}

static void
ath10k_mac_get_any_chandef_iter(struct ieee80211_hw *hw,
				struct ieee80211_chanctx_conf *conf,
				void *data)
{
	struct cfg80211_chan_def **def = data;

	*def = &conf->def;
}

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

	lockdep_assert_held(&ar->conf_mutex);

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	if (ar->num_peers >= ar->max_num_peers)
		return -ENOBUFS;

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	ret = ath10k_wmi_peer_create(ar, vdev_id, addr, peer_type);
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	if (ret) {
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		ath10k_warn(ar, "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(ar, "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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	ar->num_peers++;
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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(ar, "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(ar, "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) {
655
		ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
656
			    arvif->vdev_id, ret);
657 658 659 660 661 662 663
		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) {
664
		ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
665
			    arvif->vdev_id, ret);
666 667 668 669 670 671
		return ret;
	}

	return 0;
}

672
static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
673
{
674 675 676 677 678
	struct ath10k *ar = arvif->ar;
	u32 vdev_param;

	vdev_param = ar->wmi.vdev_param->rts_threshold;
	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
679 680
}

681 682 683 684 685 686 687 688 689 690 691 692 693 694
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;

695 696
	ar->num_peers--;

697 698 699 700 701 702 703 704 705 706 707 708 709 710
	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;

711
		ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
712 713 714 715
			    peer->addr, vdev_id);

		list_del(&peer->list);
		kfree(peer);
716
		ar->num_peers--;
717 718 719 720
	}
	spin_unlock_bh(&ar->data_lock);
}

721 722 723 724 725 726 727 728 729 730 731 732
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);
	}
	spin_unlock_bh(&ar->data_lock);
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733 734

	ar->num_peers = 0;
735
	ar->num_stations = 0;
736 737
}

738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769
static int ath10k_mac_tdls_peer_update(struct ath10k *ar, u32 vdev_id,
				       struct ieee80211_sta *sta,
				       enum wmi_tdls_peer_state state)
{
	int ret;
	struct wmi_tdls_peer_update_cmd_arg arg = {};
	struct wmi_tdls_peer_capab_arg cap = {};
	struct wmi_channel_arg chan_arg = {};

	lockdep_assert_held(&ar->conf_mutex);

	arg.vdev_id = vdev_id;
	arg.peer_state = state;
	ether_addr_copy(arg.addr, sta->addr);

	cap.peer_max_sp = sta->max_sp;
	cap.peer_uapsd_queues = sta->uapsd_queues;

	if (state == WMI_TDLS_PEER_STATE_CONNECTED &&
	    !sta->tdls_initiator)
		cap.is_peer_responder = 1;

	ret = ath10k_wmi_tdls_peer_update(ar, &arg, &cap, &chan_arg);
	if (ret) {
		ath10k_warn(ar, "failed to update tdls peer %pM on vdev %i: %i\n",
			    arg.addr, vdev_id, ret);
		return ret;
	}

	return 0;
}

770 771 772 773
/************************/
/* Interface management */
/************************/

774 775 776 777 778 779 780 781 782 783 784 785 786
void ath10k_mac_vif_beacon_free(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->data_lock);

	if (!arvif->beacon)
		return;

	if (!arvif->beacon_buf)
		dma_unmap_single(ar->dev, ATH10K_SKB_CB(arvif->beacon)->paddr,
				 arvif->beacon->len, DMA_TO_DEVICE);

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787 788 789 790
	if (WARN_ON(arvif->beacon_state != ATH10K_BEACON_SCHEDULED &&
		    arvif->beacon_state != ATH10K_BEACON_SENT))
		return;

791 792 793
	dev_kfree_skb_any(arvif->beacon);

	arvif->beacon = NULL;
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	arvif->beacon_state = ATH10K_BEACON_SCHEDULED;
795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811
}

static void ath10k_mac_vif_beacon_cleanup(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->data_lock);

	ath10k_mac_vif_beacon_free(arvif);

	if (arvif->beacon_buf) {
		dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
				  arvif->beacon_buf, arvif->beacon_paddr);
		arvif->beacon_buf = NULL;
	}
}

812 813
static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
{
814
	unsigned long time_left;
815

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	lockdep_assert_held(&ar->conf_mutex);

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	if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
		return -ESHUTDOWN;

821 822 823
	time_left = wait_for_completion_timeout(&ar->vdev_setup_done,
						ATH10K_VDEV_SETUP_TIMEOUT_HZ);
	if (time_left == 0)
824 825 826 827 828
		return -ETIMEDOUT;

	return 0;
}

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static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
830
{
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	struct cfg80211_chan_def *chandef = NULL;
832
	struct ieee80211_channel *channel = NULL;
833 834 835 836 837
	struct wmi_vdev_start_request_arg arg = {};
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

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838 839 840 841 842 843 844 845
	ieee80211_iter_chan_contexts_atomic(ar->hw,
					    ath10k_mac_get_any_chandef_iter,
					    &chandef);
	if (WARN_ON_ONCE(!chandef))
		return -ENOENT;

	channel = chandef->chan;

846 847
	arg.vdev_id = vdev_id;
	arg.channel.freq = channel->center_freq;
848
	arg.channel.band_center_freq1 = chandef->center_freq1;
849 850 851

	/* TODO setup this dynamically, what in case we
	   don't have any vifs? */
852
	arg.channel.mode = chan_to_phymode(chandef);
853 854
	arg.channel.chan_radar =
			!!(channel->flags & IEEE80211_CHAN_RADAR);
855

856
	arg.channel.min_power = 0;
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Michal Kazior 已提交
857 858 859
	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;
860

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Michal Kazior 已提交
861 862
	reinit_completion(&ar->vdev_setup_done);

863 864
	ret = ath10k_wmi_vdev_start(ar, &arg);
	if (ret) {
865
		ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
866
			    vdev_id, ret);
867 868 869 870 871
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
872
		ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
873
			    vdev_id, ret);
874 875 876 877 878
		return ret;
	}

	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
	if (ret) {
879
		ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
880
			    vdev_id, ret);
881 882 883 884 885
		goto vdev_stop;
	}

	ar->monitor_vdev_id = vdev_id;

886
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
M
Michal Kazior 已提交
887
		   ar->monitor_vdev_id);
888 889 890 891 892
	return 0;

vdev_stop:
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
893
		ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
894
			    ar->monitor_vdev_id, ret);
895 896 897 898

	return ret;
}

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Michal Kazior 已提交
899
static int ath10k_monitor_vdev_stop(struct ath10k *ar)
900 901 902 903 904
{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

905 906
	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
	if (ret)
907
		ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
908
			    ar->monitor_vdev_id, ret);
909

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910 911
	reinit_completion(&ar->vdev_setup_done);

912 913
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
914
		ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
915
			    ar->monitor_vdev_id, ret);
916 917 918

	ret = ath10k_vdev_setup_sync(ar);
	if (ret)
919
		ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
920
			    ar->monitor_vdev_id, ret);
921

922
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
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Michal Kazior 已提交
923
		   ar->monitor_vdev_id);
924 925 926
	return ret;
}

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927
static int ath10k_monitor_vdev_create(struct ath10k *ar)
928 929 930 931 932
{
	int bit, ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

B
Ben Greear 已提交
933
	if (ar->free_vdev_map == 0) {
934
		ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
935 936 937
		return -ENOMEM;
	}

B
Ben Greear 已提交
938
	bit = __ffs64(ar->free_vdev_map);
B
Ben Greear 已提交
939

B
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940
	ar->monitor_vdev_id = bit;
941 942 943 944 945

	ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
				     WMI_VDEV_TYPE_MONITOR,
				     0, ar->mac_addr);
	if (ret) {
946
		ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
947
			    ar->monitor_vdev_id, ret);
B
Ben Greear 已提交
948
		return ret;
949 950
	}

B
Ben Greear 已提交
951
	ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
952
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
953 954 955 956 957
		   ar->monitor_vdev_id);

	return 0;
}

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Michal Kazior 已提交
958
static int ath10k_monitor_vdev_delete(struct ath10k *ar)
959 960 961 962 963 964 965
{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
	if (ret) {
966
		ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
967
			    ar->monitor_vdev_id, ret);
968 969 970
		return ret;
	}

B
Ben Greear 已提交
971
	ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
972

973
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
974 975 976 977
		   ar->monitor_vdev_id);
	return ret;
}

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978 979 980 981 982 983 984 985
static int ath10k_monitor_start(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_monitor_vdev_create(ar);
	if (ret) {
986
		ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
M
Michal Kazior 已提交
987 988 989 990 991
		return ret;
	}

	ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
	if (ret) {
992
		ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
M
Michal Kazior 已提交
993 994 995 996 997
		ath10k_monitor_vdev_delete(ar);
		return ret;
	}

	ar->monitor_started = true;
998
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
M
Michal Kazior 已提交
999 1000 1001 1002

	return 0;
}

1003
static int ath10k_monitor_stop(struct ath10k *ar)
M
Michal Kazior 已提交
1004 1005 1006 1007 1008 1009
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_monitor_vdev_stop(ar);
1010
	if (ret) {
1011
		ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
1012 1013
		return ret;
	}
M
Michal Kazior 已提交
1014 1015

	ret = ath10k_monitor_vdev_delete(ar);
1016
	if (ret) {
1017
		ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
1018 1019
		return ret;
	}
M
Michal Kazior 已提交
1020 1021

	ar->monitor_started = false;
1022
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
1023 1024 1025 1026

	return 0;
}

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1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063
static bool ath10k_mac_monitor_vdev_is_needed(struct ath10k *ar)
{
	int num_ctx;

	/* At least one chanctx is required to derive a channel to start
	 * monitor vdev on.
	 */
	num_ctx = ath10k_mac_num_chanctxs(ar);
	if (num_ctx == 0)
		return false;

	/* If there's already an existing special monitor interface then don't
	 * bother creating another monitor vdev.
	 */
	if (ar->monitor_arvif)
		return false;

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

static bool ath10k_mac_monitor_vdev_is_allowed(struct ath10k *ar)
{
	int num_ctx;

	num_ctx = ath10k_mac_num_chanctxs(ar);

	/* FIXME: Current interface combinations and cfg80211/mac80211 code
	 * shouldn't allow this but make sure to prevent handling the following
	 * case anyway since multi-channel DFS hasn't been tested at all.
	 */
	if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags) && num_ctx > 1)
		return false;

	return true;
}

1064 1065
static int ath10k_monitor_recalc(struct ath10k *ar)
{
M
Michal Kazior 已提交
1066 1067 1068
	bool needed;
	bool allowed;
	int ret;
1069 1070 1071

	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
1072 1073
	needed = ath10k_mac_monitor_vdev_is_needed(ar);
	allowed = ath10k_mac_monitor_vdev_is_allowed(ar);
1074 1075

	ath10k_dbg(ar, ATH10K_DBG_MAC,
M
Michal Kazior 已提交
1076 1077
		   "mac monitor recalc started? %d needed? %d allowed? %d\n",
		   ar->monitor_started, needed, allowed);
1078

M
Michal Kazior 已提交
1079 1080 1081 1082 1083 1084 1085 1086 1087
	if (WARN_ON(needed && !allowed)) {
		if (ar->monitor_started) {
			ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopping disallowed monitor\n");

			ret = ath10k_monitor_stop(ar);
			if (ret)
				ath10k_warn(ar, "failed to stop disallowed monitor: %d\n", ret);
				/* not serious */
		}
1088

M
Michal Kazior 已提交
1089 1090
		return -EPERM;
	}
1091

M
Michal Kazior 已提交
1092
	if (needed == ar->monitor_started)
1093 1094
		return 0;

M
Michal Kazior 已提交
1095
	if (needed)
1096
		return ath10k_monitor_start(ar);
M
Michal Kazior 已提交
1097 1098
	else
		return ath10k_monitor_stop(ar);
M
Michal Kazior 已提交
1099 1100
}

1101 1102 1103 1104 1105 1106 1107 1108 1109
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;

1110
	rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
1111 1112 1113 1114

	if (arvif->num_legacy_stations > 0)
		rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
			      WMI_RTSCTS_PROFILE);
1115 1116 1117
	else
		rts_cts |= SM(WMI_RTSCTS_FOR_SECOND_RATESERIES,
			      WMI_RTSCTS_PROFILE);
1118 1119 1120 1121 1122

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

1123 1124 1125 1126 1127 1128 1129 1130
static int ath10k_start_cac(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);

1131
	ret = ath10k_monitor_recalc(ar);
1132
	if (ret) {
1133
		ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
1134 1135 1136 1137
		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
		return ret;
	}

1138
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152
		   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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Michal Kazior 已提交
1153
	ath10k_monitor_stop(ar);
1154

1155
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
1156 1157 1158 1159

	return 0;
}

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1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180
static void ath10k_mac_has_radar_iter(struct ieee80211_hw *hw,
				      struct ieee80211_chanctx_conf *conf,
				      void *data)
{
	bool *ret = data;

	if (!*ret && conf->radar_enabled)
		*ret = true;
}

static bool ath10k_mac_has_radar_enabled(struct ath10k *ar)
{
	bool has_radar = false;

	ieee80211_iter_chan_contexts_atomic(ar->hw,
					    ath10k_mac_has_radar_iter,
					    &has_radar);

	return has_radar;
}

1181
static void ath10k_recalc_radar_detection(struct ath10k *ar)
1182 1183 1184 1185 1186 1187 1188
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ath10k_stop_cac(ar);

M
Michal Kazior 已提交
1189
	if (!ath10k_mac_has_radar_enabled(ar))
1190 1191
		return;

1192
	if (ar->num_started_vdevs > 0)
1193 1194 1195 1196 1197 1198 1199 1200 1201
		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.
		 */
1202
		ath10k_warn(ar, "failed to start CAC: %d\n", ret);
1203 1204 1205 1206
		ieee80211_radar_detected(ar->hw);
	}
}

1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239
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(ar, "failed to stop WMI vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

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

	WARN_ON(ar->num_started_vdevs == 0);

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

	return ret;
}

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static int ath10k_vdev_start_restart(struct ath10k_vif *arvif,
				     const struct cfg80211_chan_def *chandef,
				     bool restart)
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{
	struct ath10k *ar = arvif->ar;
	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;
	}

1278
	ath10k_dbg(ar, ATH10K_DBG_MAC,
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		   "mac vdev %d start center_freq %d phymode %s\n",
		   arg.vdev_id, arg.channel.freq,
		   ath10k_wmi_phymode_str(arg.channel.mode));

1283 1284 1285 1286 1287
	if (restart)
		ret = ath10k_wmi_vdev_restart(ar, &arg);
	else
		ret = ath10k_wmi_vdev_start(ar, &arg);

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	if (ret) {
1289
		ath10k_warn(ar, "failed to start WMI vdev %i: %d\n",
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			    arg.vdev_id, ret);
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
1296 1297 1298
		ath10k_warn(ar,
			    "failed to synchronize setup for vdev %i restart %d: %d\n",
			    arg.vdev_id, restart, ret);
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		return ret;
	}

1302 1303 1304
	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,
			     const struct cfg80211_chan_def *def)
1310
{
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	return ath10k_vdev_start_restart(arvif, def, false);
1312 1313
}

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static int ath10k_vdev_restart(struct ath10k_vif *arvif,
			       const struct cfg80211_chan_def *def)
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{
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	return ath10k_vdev_start_restart(arvif, def, true);
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}

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static int ath10k_mac_setup_bcn_p2p_ie(struct ath10k_vif *arvif,
				       struct sk_buff *bcn)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_mgmt *mgmt;
	const u8 *p2p_ie;
	int ret;

	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return 0;

	if (arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
		return 0;

	mgmt = (void *)bcn->data;
	p2p_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
					 mgmt->u.beacon.variable,
					 bcn->len - (mgmt->u.beacon.variable -
						     bcn->data));
	if (!p2p_ie)
		return -ENOENT;

	ret = ath10k_wmi_p2p_go_bcn_ie(ar, arvif->vdev_id, p2p_ie);
	if (ret) {
		ath10k_warn(ar, "failed to submit p2p go bcn ie for vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_remove_vendor_ie(struct sk_buff *skb, unsigned int oui,
				       u8 oui_type, size_t ie_offset)
{
	size_t len;
	const u8 *next;
	const u8 *end;
	u8 *ie;

	if (WARN_ON(skb->len < ie_offset))
		return -EINVAL;

	ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
					   skb->data + ie_offset,
					   skb->len - ie_offset);
	if (!ie)
		return -ENOENT;

	len = ie[1] + 2;
	end = skb->data + skb->len;
	next = ie + len;

	if (WARN_ON(next > end))
		return -EINVAL;

	memmove(ie, next, end - next);
	skb_trim(skb, skb->len - len);

	return 0;
}

static int ath10k_mac_setup_bcn_tmpl(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_vif *vif = arvif->vif;
	struct ieee80211_mutable_offsets offs = {};
	struct sk_buff *bcn;
	int ret;

	if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
		return 0;

1394 1395 1396 1397
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
	    arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
		return 0;

1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442
	bcn = ieee80211_beacon_get_template(hw, vif, &offs);
	if (!bcn) {
		ath10k_warn(ar, "failed to get beacon template from mac80211\n");
		return -EPERM;
	}

	ret = ath10k_mac_setup_bcn_p2p_ie(arvif, bcn);
	if (ret) {
		ath10k_warn(ar, "failed to setup p2p go bcn ie: %d\n", ret);
		kfree_skb(bcn);
		return ret;
	}

	/* P2P IE is inserted by firmware automatically (as configured above)
	 * so remove it from the base beacon template to avoid duplicate P2P
	 * IEs in beacon frames.
	 */
	ath10k_mac_remove_vendor_ie(bcn, WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P,
				    offsetof(struct ieee80211_mgmt,
					     u.beacon.variable));

	ret = ath10k_wmi_bcn_tmpl(ar, arvif->vdev_id, offs.tim_offset, bcn, 0,
				  0, NULL, 0);
	kfree_skb(bcn);

	if (ret) {
		ath10k_warn(ar, "failed to submit beacon template command: %d\n",
			    ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_setup_prb_tmpl(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_vif *vif = arvif->vif;
	struct sk_buff *prb;
	int ret;

	if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
		return 0;

1443 1444 1445
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return 0;

1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463
	prb = ieee80211_proberesp_get(hw, vif);
	if (!prb) {
		ath10k_warn(ar, "failed to get probe resp template from mac80211\n");
		return -EPERM;
	}

	ret = ath10k_wmi_prb_tmpl(ar, arvif->vdev_id, prb);
	kfree_skb(prb);

	if (ret) {
		ath10k_warn(ar, "failed to submit probe resp template command: %d\n",
			    ret);
		return ret;
	}

	return 0;
}

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static int ath10k_mac_vif_fix_hidden_ssid(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct cfg80211_chan_def def;
	int ret;

	/* When originally vdev is started during assign_vif_chanctx() some
	 * information is missing, notably SSID. Firmware revisions with beacon
	 * offloading require the SSID to be provided during vdev (re)start to
	 * handle hidden SSID properly.
	 *
	 * Vdev restart must be done after vdev has been both started and
	 * upped. Otherwise some firmware revisions (at least 10.2) fail to
	 * deliver vdev restart response event causing timeouts during vdev
	 * syncing in ath10k.
	 *
	 * Note: The vdev down/up and template reinstallation could be skipped
	 * since only wmi-tlv firmware are known to have beacon offload and
	 * wmi-tlv doesn't seem to misbehave like 10.2 wrt vdev restart
	 * response delivery. It's probably more robust to keep it as is.
	 */
	if (!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map))
		return 0;

	if (WARN_ON(!arvif->is_started))
		return -EINVAL;

	if (WARN_ON(!arvif->is_up))
		return -EINVAL;

	if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
		return -EINVAL;

	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
	if (ret) {
		ath10k_warn(ar, "failed to bring down ap vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	/* Vdev down reset beacon & presp templates. Reinstall them. Otherwise
	 * firmware will crash upon vdev up.
	 */

	ret = ath10k_mac_setup_bcn_tmpl(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to update beacon template: %d\n", ret);
		return ret;
	}

	ret = ath10k_mac_setup_prb_tmpl(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to update presp template: %d\n", ret);
		return ret;
	}

	ret = ath10k_vdev_restart(arvif, &def);
	if (ret) {
		ath10k_warn(ar, "failed to restart ap vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
				 arvif->bssid);
	if (ret) {
		ath10k_warn(ar, "failed to bring up ap vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

1538
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
1539
				     struct ieee80211_bss_conf *info)
1540
{
1541
	struct ath10k *ar = arvif->ar;
1542 1543
	int ret = 0;

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

1546
	if (!info->enable_beacon) {
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		ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
		if (ret)
			ath10k_warn(ar, "failed to down vdev_id %i: %d\n",
				    arvif->vdev_id, ret);
1551 1552 1553

		arvif->is_up = false;

1554
		spin_lock_bh(&arvif->ar->data_lock);
1555
		ath10k_mac_vif_beacon_free(arvif);
1556 1557
		spin_unlock_bh(&arvif->ar->data_lock);

1558 1559 1560 1561 1562
		return;
	}

	arvif->tx_seq_no = 0x1000;

1563
	arvif->aid = 0;
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	ether_addr_copy(arvif->bssid, info->bssid);
1565 1566 1567

	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
				 arvif->bssid);
1568
	if (ret) {
1569
		ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
1570
			    arvif->vdev_id, ret);
1571 1572
		return;
	}
1573 1574 1575

	arvif->is_up = true;

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	ret = ath10k_mac_vif_fix_hidden_ssid(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to fix hidden ssid for vdev %i, expect trouble: %d\n",
			    arvif->vdev_id, ret);
		return;
	}

1583
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
1584 1585 1586 1587 1588 1589
}

static void ath10k_control_ibss(struct ath10k_vif *arvif,
				struct ieee80211_bss_conf *info,
				const u8 self_peer[ETH_ALEN])
{
1590
	struct ath10k *ar = arvif->ar;
1591
	u32 vdev_param;
1592 1593
	int ret = 0;

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

1596
	if (!info->ibss_joined) {
1597
		if (is_zero_ether_addr(arvif->bssid))
1598 1599
			return;

1600
		eth_zero_addr(arvif->bssid);
1601 1602 1603 1604

		return;
	}

1605 1606
	vdev_param = arvif->ar->wmi.vdev_param->atim_window;
	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1607 1608
					ATH10K_DEFAULT_ATIM);
	if (ret)
1609
		ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1610 1611 1612
			    arvif->vdev_id, ret);
}

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static int ath10k_mac_vif_recalc_ps_wake_threshold(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 param;
	u32 value;
	int ret;

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

	if (arvif->u.sta.uapsd)
		value = WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER;
	else
		value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;

	param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param, value);
	if (ret) {
		ath10k_warn(ar, "failed to submit ps wake threshold %u on vdev %i: %d\n",
			    value, arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_vif_recalc_ps_poll_count(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	u32 param;
	u32 value;
	int ret;

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

	if (arvif->u.sta.uapsd)
		value = WMI_STA_PS_PSPOLL_COUNT_UAPSD;
	else
		value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;

	param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
					  param, value);
	if (ret) {
		ath10k_warn(ar, "failed to submit ps poll count %u on vdev %i: %d\n",
			    value, arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

1664
static int ath10k_mac_num_vifs_started(struct ath10k *ar)
1665 1666 1667 1668 1669 1670 1671
{
	struct ath10k_vif *arvif;
	int num = 0;

	lockdep_assert_held(&ar->conf_mutex);

	list_for_each_entry(arvif, &ar->arvifs, list)
1672
		if (arvif->is_started)
1673 1674 1675 1676 1677
			num++;

	return num;
}

1678
static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1679
{
1680
	struct ath10k *ar = arvif->ar;
1681
	struct ieee80211_vif *vif = arvif->vif;
1682
	struct ieee80211_conf *conf = &ar->hw->conf;
1683 1684 1685
	enum wmi_sta_powersave_param param;
	enum wmi_sta_ps_mode psmode;
	int ret;
1686
	int ps_timeout;
1687
	bool enable_ps;
1688

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

1691 1692
	if (arvif->vif->type != NL80211_IFTYPE_STATION)
		return 0;
1693

1694 1695
	enable_ps = arvif->ps;

1696
	if (enable_ps && ath10k_mac_num_vifs_started(ar) > 1 &&
1697 1698 1699 1700 1701 1702 1703
	    !test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
		      ar->fw_features)) {
		ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",
			    arvif->vdev_id);
		enable_ps = false;
	}

1704 1705 1706 1707 1708 1709 1710 1711
	if (!arvif->is_started) {
		/* mac80211 can update vif powersave state while disconnected.
		 * Firmware doesn't behave nicely and consumes more power than
		 * necessary if PS is disabled on a non-started vdev. Hence
		 * force-enable PS for non-running vdevs.
		 */
		psmode = WMI_STA_PS_MODE_ENABLED;
	} else if (enable_ps) {
1712 1713 1714
		psmode = WMI_STA_PS_MODE_ENABLED;
		param = WMI_STA_PS_PARAM_INACTIVITY_TIME;

1715 1716 1717 1718 1719 1720 1721
		ps_timeout = conf->dynamic_ps_timeout;
		if (ps_timeout == 0) {
			/* Firmware doesn't like 0 */
			ps_timeout = ieee80211_tu_to_usec(
				vif->bss_conf.beacon_int) / 1000;
		}

1722
		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1723
						  ps_timeout);
1724
		if (ret) {
1725
			ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
1726
				    arvif->vdev_id, ret);
1727
			return ret;
1728 1729 1730 1731 1732
		}
	} else {
		psmode = WMI_STA_PS_MODE_DISABLED;
	}

1733
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
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		   arvif->vdev_id, psmode ? "enable" : "disable");

1736 1737
	ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
	if (ret) {
1738
		ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
1739
			    psmode, arvif->vdev_id, ret);
1740 1741 1742 1743
		return ret;
	}

	return 0;
1744 1745
}

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static int ath10k_mac_vif_disable_keepalive(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct wmi_sta_keepalive_arg arg = {};
	int ret;

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

	if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
		return 0;

	if (!test_bit(WMI_SERVICE_STA_KEEP_ALIVE, ar->wmi.svc_map))
		return 0;

	/* Some firmware revisions have a bug and ignore the `enabled` field.
	 * Instead use the interval to disable the keepalive.
	 */
	arg.vdev_id = arvif->vdev_id;
	arg.enabled = 1;
	arg.method = WMI_STA_KEEPALIVE_METHOD_NULL_FRAME;
	arg.interval = WMI_STA_KEEPALIVE_INTERVAL_DISABLE;

	ret = ath10k_wmi_sta_keepalive(ar, &arg);
	if (ret) {
		ath10k_warn(ar, "failed to submit keepalive on vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	return 0;
}

1778 1779 1780 1781 1782 1783
static void ath10k_mac_vif_ap_csa_count_down(struct ath10k_vif *arvif)
{
	struct ath10k *ar = arvif->ar;
	struct ieee80211_vif *vif = arvif->vif;
	int ret;

1784 1785 1786 1787 1788
	lockdep_assert_held(&arvif->ar->conf_mutex);

	if (WARN_ON(!test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)))
		return;

1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return;

	if (!vif->csa_active)
		return;

	if (!arvif->is_up)
		return;

	if (!ieee80211_csa_is_complete(vif)) {
		ieee80211_csa_update_counter(vif);

		ret = ath10k_mac_setup_bcn_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
				    ret);

		ret = ath10k_mac_setup_prb_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
				    ret);
	} else {
		ieee80211_csa_finish(vif);
	}
}

static void ath10k_mac_vif_ap_csa_work(struct work_struct *work)
{
	struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
						ap_csa_work);
	struct ath10k *ar = arvif->ar;

	mutex_lock(&ar->conf_mutex);
	ath10k_mac_vif_ap_csa_count_down(arvif);
	mutex_unlock(&ar->conf_mutex);
}

1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894
static void ath10k_mac_handle_beacon_iter(void *data, u8 *mac,
					  struct ieee80211_vif *vif)
{
	struct sk_buff *skb = data;
	struct ieee80211_mgmt *mgmt = (void *)skb->data;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

	if (vif->type != NL80211_IFTYPE_STATION)
		return;

	if (!ether_addr_equal(mgmt->bssid, vif->bss_conf.bssid))
		return;

	cancel_delayed_work(&arvif->connection_loss_work);
}

void ath10k_mac_handle_beacon(struct ath10k *ar, struct sk_buff *skb)
{
	ieee80211_iterate_active_interfaces_atomic(ar->hw,
						   IEEE80211_IFACE_ITER_NORMAL,
						   ath10k_mac_handle_beacon_iter,
						   skb);
}

static void ath10k_mac_handle_beacon_miss_iter(void *data, u8 *mac,
					       struct ieee80211_vif *vif)
{
	u32 *vdev_id = data;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct ath10k *ar = arvif->ar;
	struct ieee80211_hw *hw = ar->hw;

	if (arvif->vdev_id != *vdev_id)
		return;

	if (!arvif->is_up)
		return;

	ieee80211_beacon_loss(vif);

	/* Firmware doesn't report beacon loss events repeatedly. If AP probe
	 * (done by mac80211) succeeds but beacons do not resume then it
	 * doesn't make sense to continue operation. Queue connection loss work
	 * which can be cancelled when beacon is received.
	 */
	ieee80211_queue_delayed_work(hw, &arvif->connection_loss_work,
				     ATH10K_CONNECTION_LOSS_HZ);
}

void ath10k_mac_handle_beacon_miss(struct ath10k *ar, u32 vdev_id)
{
	ieee80211_iterate_active_interfaces_atomic(ar->hw,
						   IEEE80211_IFACE_ITER_NORMAL,
						   ath10k_mac_handle_beacon_miss_iter,
						   &vdev_id);
}

static void ath10k_mac_vif_sta_connection_loss_work(struct work_struct *work)
{
	struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
						connection_loss_work.work);
	struct ieee80211_vif *vif = arvif->vif;

	if (!arvif->is_up)
		return;

	ieee80211_connection_loss(vif);
}

1895 1896 1897 1898
/**********************/
/* Station management */
/**********************/

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Michal Kazior 已提交
1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915
static u32 ath10k_peer_assoc_h_listen_intval(struct ath10k *ar,
					     struct ieee80211_vif *vif)
{
	/* Some firmware revisions have unstable STA powersave when listen
	 * interval is set too high (e.g. 5). The symptoms are firmware doesn't
	 * generate NullFunc frames properly even if buffered frames have been
	 * indicated in Beacon TIM. Firmware would seldom wake up to pull
	 * buffered frames. Often pinging the device from AP would simply fail.
	 *
	 * As a workaround set it to 1.
	 */
	if (vif->type == NL80211_IFTYPE_STATION)
		return 1;

	return ar->hw->conf.listen_interval;
}

1916
static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
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Michal Kazior 已提交
1917
				      struct ieee80211_vif *vif,
1918 1919 1920
				      struct ieee80211_sta *sta,
				      struct wmi_peer_assoc_complete_arg *arg)
{
M
Michal Kazior 已提交
1921
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1922
	u32 aid;
M
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1923

M
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1924 1925
	lockdep_assert_held(&ar->conf_mutex);

1926 1927 1928 1929 1930
	if (vif->type == NL80211_IFTYPE_STATION)
		aid = vif->bss_conf.aid;
	else
		aid = sta->aid;

K
Kalle Valo 已提交
1931
	ether_addr_copy(arg->addr, sta->addr);
1932
	arg->vdev_id = arvif->vdev_id;
1933
	arg->peer_aid = aid;
1934
	arg->peer_flags |= WMI_PEER_AUTH;
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1935
	arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
1936
	arg->peer_num_spatial_streams = 1;
M
Michal Kazior 已提交
1937
	arg->peer_caps = vif->bss_conf.assoc_capability;
1938 1939 1940
}

static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
M
Michal Kazior 已提交
1941
				       struct ieee80211_vif *vif,
1942 1943 1944
				       struct wmi_peer_assoc_complete_arg *arg)
{
	struct ieee80211_bss_conf *info = &vif->bss_conf;
M
Michal Kazior 已提交
1945
	struct cfg80211_chan_def def;
1946 1947 1948 1949
	struct cfg80211_bss *bss;
	const u8 *rsnie = NULL;
	const u8 *wpaie = NULL;

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1950 1951
	lockdep_assert_held(&ar->conf_mutex);

M
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1952 1953 1954 1955 1956
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

	bss = cfg80211_get_bss(ar->hw->wiphy, def.chan, info->bssid, NULL, 0,
			       IEEE80211_BSS_TYPE_ANY, IEEE80211_PRIVACY_ANY);
1957 1958 1959 1960 1961 1962 1963 1964 1965
	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,
1966 1967 1968
						WLAN_OUI_TYPE_MICROSOFT_WPA,
						ies->data,
						ies->len);
1969 1970 1971 1972 1973 1974
		rcu_read_unlock();
		cfg80211_put_bss(ar->hw->wiphy, bss);
	}

	/* FIXME: base on RSN IE/WPA IE is a correct idea? */
	if (rsnie || wpaie) {
1975
		ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
1976 1977 1978 1979
		arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
	}

	if (wpaie) {
1980
		ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
1981 1982 1983 1984 1985
		arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
	}
}

static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
M
Michal Kazior 已提交
1986
				      struct ieee80211_vif *vif,
1987 1988 1989
				      struct ieee80211_sta *sta,
				      struct wmi_peer_assoc_complete_arg *arg)
{
1990
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
1991
	struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
M
Michal Kazior 已提交
1992
	struct cfg80211_chan_def def;
1993 1994
	const struct ieee80211_supported_band *sband;
	const struct ieee80211_rate *rates;
1995
	enum ieee80211_band band;
1996
	u32 ratemask;
M
Michal Kazior 已提交
1997
	u8 rate;
1998 1999
	int i;

M
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2000 2001
	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
2002 2003 2004
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2005 2006 2007 2008
	band = def.chan->band;
	sband = ar->hw->wiphy->bands[band];
	ratemask = sta->supp_rates[band];
	ratemask &= arvif->bitrate_mask.control[band].legacy;
2009 2010 2011 2012 2013 2014 2015 2016
	rates = sband->bitrates;

	rateset->num_rates = 0;

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

M
Michal Kazior 已提交
2017 2018
		rate = ath10k_mac_bitrate_to_rate(rates->bitrate);
		rateset->rates[rateset->num_rates] = rate;
2019 2020 2021 2022
		rateset->num_rates++;
	}
}

2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046
static bool
ath10k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN])
{
	int nss;

	for (nss = 0; nss < IEEE80211_HT_MCS_MASK_LEN; nss++)
		if (ht_mcs_mask[nss])
			return false;

	return true;
}

static bool
ath10k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
{
	int nss;

	for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++)
		if (vht_mcs_mask[nss])
			return false;

	return true;
}

2047
static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
2048
				   struct ieee80211_vif *vif,
2049 2050 2051 2052
				   struct ieee80211_sta *sta,
				   struct wmi_peer_assoc_complete_arg *arg)
{
	const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
2053 2054 2055 2056 2057 2058
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct cfg80211_chan_def def;
	enum ieee80211_band band;
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
	int i, n, max_nss;
2059
	u32 stbc;
2060

M
Michal Kazior 已提交
2061 2062
	lockdep_assert_held(&ar->conf_mutex);

2063 2064 2065
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2066 2067 2068
	if (!ht_cap->ht_supported)
		return;

2069 2070 2071 2072 2073 2074 2075 2076
	band = def.chan->band;
	ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
	vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;

	if (ath10k_peer_assoc_h_ht_masked(ht_mcs_mask) &&
	    ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
		return;

2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094
	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;
	}

2095 2096 2097
	if (arvif->bitrate_mask.control[band].gi != NL80211_TXRATE_FORCE_LGI) {
		if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
			arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
2098

2099 2100 2101
		if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
			arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
	}
2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120

	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) {
		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;

2121 2122 2123 2124
	for (i = 0, n = 0, max_nss = 0; i < IEEE80211_HT_MCS_MASK_LEN * 8; i++)
		if ((ht_cap->mcs.rx_mask[i / 8] & BIT(i % 8)) &&
		    (ht_mcs_mask[i / 8] & BIT(i % 8))) {
			max_nss = (i / 8) + 1;
2125
			arg->peer_ht_rates.rates[n++] = i;
2126
		}
2127

2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142
	/*
	 * 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;
2143
		arg->peer_num_spatial_streams = max_nss;
2144
	}
2145

2146
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
K
Kalle Valo 已提交
2147
		   arg->addr,
2148 2149 2150 2151
		   arg->peer_ht_rates.num_rates,
		   arg->peer_num_spatial_streams);
}

2152 2153 2154
static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
				    struct ath10k_vif *arvif,
				    struct ieee80211_sta *sta)
2155 2156 2157
{
	u32 uapsd = 0;
	u32 max_sp = 0;
2158
	int ret = 0;
2159

M
Michal Kazior 已提交
2160 2161
	lockdep_assert_held(&ar->conf_mutex);

2162
	if (sta->wme && sta->uapsd_queues) {
2163
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181
			   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;

2182 2183 2184 2185 2186
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
						 sta->addr,
						 WMI_AP_PS_PEER_PARAM_UAPSD,
						 uapsd);
		if (ret) {
2187
			ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
2188
				    arvif->vdev_id, ret);
2189 2190
			return ret;
		}
2191

2192 2193 2194 2195 2196
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
						 sta->addr,
						 WMI_AP_PS_PEER_PARAM_MAX_SP,
						 max_sp);
		if (ret) {
2197
			ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
2198
				    arvif->vdev_id, ret);
2199 2200
			return ret;
		}
2201 2202 2203 2204 2205

		/* 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 */
2206
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
2207 2208
						 WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
						 10);
2209
		if (ret) {
2210
			ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
2211
				    arvif->vdev_id, ret);
2212 2213
			return ret;
		}
2214 2215
	}

2216
	return 0;
2217 2218
}

2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269
static u16
ath10k_peer_assoc_h_vht_limit(u16 tx_mcs_set,
			      const u16 vht_mcs_limit[NL80211_VHT_NSS_MAX])
{
	int idx_limit;
	int nss;
	u16 mcs_map;
	u16 mcs;

	for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
		mcs_map = ath10k_mac_get_max_vht_mcs_map(tx_mcs_set, nss) &
			  vht_mcs_limit[nss];

		if (mcs_map)
			idx_limit = fls(mcs_map) - 1;
		else
			idx_limit = -1;

		switch (idx_limit) {
		case 0: /* fall through */
		case 1: /* fall through */
		case 2: /* fall through */
		case 3: /* fall through */
		case 4: /* fall through */
		case 5: /* fall through */
		case 6: /* fall through */
		default:
			/* see ath10k_mac_can_set_bitrate_mask() */
			WARN_ON(1);
			/* fall through */
		case -1:
			mcs = IEEE80211_VHT_MCS_NOT_SUPPORTED;
			break;
		case 7:
			mcs = IEEE80211_VHT_MCS_SUPPORT_0_7;
			break;
		case 8:
			mcs = IEEE80211_VHT_MCS_SUPPORT_0_8;
			break;
		case 9:
			mcs = IEEE80211_VHT_MCS_SUPPORT_0_9;
			break;
		}

		tx_mcs_set &= ~(0x3 << (nss * 2));
		tx_mcs_set |= mcs << (nss * 2);
	}

	return tx_mcs_set;
}

2270
static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
M
Michal Kazior 已提交
2271
				    struct ieee80211_vif *vif,
2272 2273 2274 2275
				    struct ieee80211_sta *sta,
				    struct wmi_peer_assoc_complete_arg *arg)
{
	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
2276
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
M
Michal Kazior 已提交
2277
	struct cfg80211_chan_def def;
2278 2279
	enum ieee80211_band band;
	const u16 *vht_mcs_mask;
2280
	u8 ampdu_factor;
2281

M
Michal Kazior 已提交
2282 2283 2284
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2285 2286 2287
	if (!vht_cap->vht_supported)
		return;

2288 2289 2290 2291 2292 2293
	band = def.chan->band;
	vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;

	if (ath10k_peer_assoc_h_vht_masked(vht_mcs_mask))
		return;

2294
	arg->peer_flags |= WMI_PEER_VHT;
2295

M
Michal Kazior 已提交
2296
	if (def.chan->band == IEEE80211_BAND_2GHZ)
2297 2298
		arg->peer_flags |= WMI_PEER_VHT_2G;

2299 2300
	arg->peer_vht_caps = vht_cap->cap;

2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312
	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);

2313 2314 2315 2316 2317 2318 2319 2320 2321
	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);
2322 2323
	arg->peer_vht_rates.tx_mcs_set = ath10k_peer_assoc_h_vht_limit(
		__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map), vht_mcs_mask);
2324

2325
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
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Kalle Valo 已提交
2326
		   sta->addr, arg->peer_max_mpdu, arg->peer_flags);
2327 2328 2329
}

static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
M
Michal Kazior 已提交
2330
				    struct ieee80211_vif *vif,
2331 2332 2333
				    struct ieee80211_sta *sta,
				    struct wmi_peer_assoc_complete_arg *arg)
{
M
Michal Kazior 已提交
2334 2335
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

2336 2337
	switch (arvif->vdev_type) {
	case WMI_VDEV_TYPE_AP:
2338 2339 2340 2341 2342 2343 2344
		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;
		}
2345 2346
		break;
	case WMI_VDEV_TYPE_STA:
M
Michal Kazior 已提交
2347
		if (vif->bss_conf.qos)
2348
			arg->peer_flags |= WMI_PEER_QOS;
2349
		break;
2350 2351 2352 2353
	case WMI_VDEV_TYPE_IBSS:
		if (sta->wme)
			arg->peer_flags |= WMI_PEER_QOS;
		break;
2354 2355 2356
	default:
		break;
	}
2357 2358 2359

	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM qos %d\n",
		   sta->addr, !!(arg->peer_flags & WMI_PEER_QOS));
2360 2361
}

2362
static bool ath10k_mac_sta_has_ofdm_only(struct ieee80211_sta *sta)
M
Michal Kazior 已提交
2363
{
2364 2365
	return sta->supp_rates[IEEE80211_BAND_2GHZ] >>
	       ATH10K_MAC_FIRST_OFDM_RATE_IDX;
M
Michal Kazior 已提交
2366 2367
}

2368
static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
M
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2369
					struct ieee80211_vif *vif,
2370 2371 2372
					struct ieee80211_sta *sta,
					struct wmi_peer_assoc_complete_arg *arg)
{
2373
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
M
Michal Kazior 已提交
2374
	struct cfg80211_chan_def def;
2375 2376 2377
	enum ieee80211_band band;
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
2378 2379
	enum wmi_phy_mode phymode = MODE_UNKNOWN;

M
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2380 2381 2382
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2383 2384 2385 2386 2387
	band = def.chan->band;
	ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
	vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;

	switch (band) {
2388
	case IEEE80211_BAND_2GHZ:
2389 2390
		if (sta->vht_cap.vht_supported &&
		    !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2391 2392 2393 2394
			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11AC_VHT40;
			else
				phymode = MODE_11AC_VHT20;
2395 2396
		} else if (sta->ht_cap.ht_supported &&
			   !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2397 2398 2399 2400
			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11NG_HT40;
			else
				phymode = MODE_11NG_HT20;
2401
		} else if (ath10k_mac_sta_has_ofdm_only(sta)) {
2402
			phymode = MODE_11G;
M
Michal Kazior 已提交
2403 2404
		} else {
			phymode = MODE_11B;
2405 2406 2407 2408
		}

		break;
	case IEEE80211_BAND_5GHZ:
2409 2410 2411
		/*
		 * Check VHT first.
		 */
2412 2413
		if (sta->vht_cap.vht_supported &&
		    !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2414 2415 2416 2417 2418 2419
			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;
2420 2421 2422
		} else if (sta->ht_cap.ht_supported &&
			   !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
			if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
2423 2424 2425 2426 2427 2428 2429 2430 2431 2432 2433 2434
				phymode = MODE_11NA_HT40;
			else
				phymode = MODE_11NA_HT20;
		} else {
			phymode = MODE_11A;
		}

		break;
	default:
		break;
	}

2435
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
K
Kalle Valo 已提交
2436
		   sta->addr, ath10k_wmi_phymode_str(phymode));
K
Kalle Valo 已提交
2437

2438 2439 2440 2441
	arg->peer_phymode = phymode;
	WARN_ON(phymode == MODE_UNKNOWN);
}

2442
static int ath10k_peer_assoc_prepare(struct ath10k *ar,
M
Michal Kazior 已提交
2443
				     struct ieee80211_vif *vif,
2444 2445
				     struct ieee80211_sta *sta,
				     struct wmi_peer_assoc_complete_arg *arg)
2446
{
M
Michal Kazior 已提交
2447 2448
	lockdep_assert_held(&ar->conf_mutex);

2449
	memset(arg, 0, sizeof(*arg));
2450

M
Michal Kazior 已提交
2451 2452
	ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
	ath10k_peer_assoc_h_crypto(ar, vif, arg);
M
Michal Kazior 已提交
2453
	ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
2454
	ath10k_peer_assoc_h_ht(ar, vif, sta, arg);
M
Michal Kazior 已提交
2455
	ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
M
Michal Kazior 已提交
2456 2457
	ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
	ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
2458

2459
	return 0;
2460 2461
}

M
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2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488
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]);
}

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Michal Kazior 已提交
2489 2490 2491 2492 2493 2494 2495 2496 2497
static int ath10k_mac_vif_recalc_txbf(struct ath10k *ar,
				      struct ieee80211_vif *vif,
				      struct ieee80211_sta_vht_cap vht_cap)
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	int ret;
	u32 param;
	u32 value;

2498 2499 2500
	if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_AFTER_ASSOC)
		return 0;

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Michal Kazior 已提交
2501 2502 2503 2504 2505 2506 2507 2508 2509 2510 2511 2512 2513 2514 2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553
	if (!(ar->vht_cap_info &
	      (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
	       IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
	       IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
	       IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)))
		return 0;

	param = ar->wmi.vdev_param->txbf;
	value = 0;

	if (WARN_ON(param == WMI_VDEV_PARAM_UNSUPPORTED))
		return 0;

	/* The following logic is correct. If a remote STA advertises support
	 * for being a beamformer then we should enable us being a beamformee.
	 */

	if (ar->vht_cap_info &
	    (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
	     IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
		if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
			value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;

		if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
			value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFEE;
	}

	if (ar->vht_cap_info &
	    (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
	     IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
		if (vht_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
			value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;

		if (vht_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
			value |= WMI_VDEV_PARAM_TXBF_MU_TX_BFER;
	}

	if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFEE)
		value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;

	if (value & WMI_VDEV_PARAM_TXBF_MU_TX_BFER)
		value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;

	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, param, value);
	if (ret) {
		ath10k_warn(ar, "failed to submit vdev param txbf 0x%x: %d\n",
			    value, ret);
		return ret;
	}

	return 0;
}

2554 2555 2556 2557 2558 2559 2560
/* 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);
M
Michal Kazior 已提交
2561
	struct ieee80211_sta_ht_cap ht_cap;
M
Michal Kazior 已提交
2562
	struct ieee80211_sta_vht_cap vht_cap;
2563
	struct wmi_peer_assoc_complete_arg peer_arg;
2564 2565 2566
	struct ieee80211_sta *ap_sta;
	int ret;

M
Michal Kazior 已提交
2567 2568
	lockdep_assert_held(&ar->conf_mutex);

2569 2570 2571
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
		   arvif->vdev_id, arvif->bssid, arvif->aid);

2572 2573 2574 2575
	rcu_read_lock();

	ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
	if (!ap_sta) {
2576
		ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
2577
			    bss_conf->bssid, arvif->vdev_id);
2578 2579 2580 2581
		rcu_read_unlock();
		return;
	}

M
Michal Kazior 已提交
2582 2583 2584
	/* 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;
M
Michal Kazior 已提交
2585
	vht_cap = ap_sta->vht_cap;
M
Michal Kazior 已提交
2586

M
Michal Kazior 已提交
2587
	ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
2588
	if (ret) {
2589
		ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
2590
			    bss_conf->bssid, arvif->vdev_id, ret);
2591 2592 2593 2594 2595 2596
		rcu_read_unlock();
		return;
	}

	rcu_read_unlock();

2597 2598
	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
	if (ret) {
2599
		ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
2600
			    bss_conf->bssid, arvif->vdev_id, ret);
2601 2602 2603
		return;
	}

M
Michal Kazior 已提交
2604 2605
	ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
	if (ret) {
2606
		ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
2607
			    arvif->vdev_id, ret);
M
Michal Kazior 已提交
2608 2609 2610
		return;
	}

M
Michal Kazior 已提交
2611 2612 2613 2614 2615 2616 2617
	ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
	if (ret) {
		ath10k_warn(ar, "failed to recalc txbf for vdev %i on bss %pM: %d\n",
			    arvif->vdev_id, bss_conf->bssid, ret);
		return;
	}

2618
	ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
2619 2620 2621
		   "mac vdev %d up (associated) bssid %pM aid %d\n",
		   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);

2622 2623
	WARN_ON(arvif->is_up);

2624
	arvif->aid = bss_conf->aid;
K
Kalle Valo 已提交
2625
	ether_addr_copy(arvif->bssid, bss_conf->bssid);
2626 2627 2628

	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
	if (ret) {
2629
		ath10k_warn(ar, "failed to set vdev %d up: %d\n",
2630
			    arvif->vdev_id, ret);
2631 2632 2633 2634
		return;
	}

	arvif->is_up = true;
2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646

	/* Workaround: Some firmware revisions (tested with qca6174
	 * WLAN.RM.2.0-00073) have buggy powersave state machine and must be
	 * poked with peer param command.
	 */
	ret = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, arvif->bssid,
					WMI_PEER_DUMMY_VAR, 1);
	if (ret) {
		ath10k_warn(ar, "failed to poke peer %pM param for ps workaround on vdev %i: %d\n",
			    arvif->bssid, arvif->vdev_id, ret);
		return;
	}
2647 2648 2649 2650 2651 2652 2653
}

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);
M
Michal Kazior 已提交
2654
	struct ieee80211_sta_vht_cap vht_cap = {};
2655 2656
	int ret;

M
Michal Kazior 已提交
2657 2658
	lockdep_assert_held(&ar->conf_mutex);

2659 2660
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
		   arvif->vdev_id, arvif->bssid);
K
Kalle Valo 已提交
2661

2662
	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
2663 2664 2665
	if (ret)
		ath10k_warn(ar, "faield to down vdev %i: %d\n",
			    arvif->vdev_id, ret);
2666

2667 2668
	arvif->def_wep_key_idx = -1;

M
Michal Kazior 已提交
2669 2670 2671 2672 2673 2674 2675
	ret = ath10k_mac_vif_recalc_txbf(ar, vif, vht_cap);
	if (ret) {
		ath10k_warn(ar, "failed to recalc txbf for vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return;
	}

2676
	arvif->is_up = false;
2677 2678

	cancel_delayed_work_sync(&arvif->connection_loss_work);
2679 2680
}

M
Michal Kazior 已提交
2681 2682 2683 2684
static int ath10k_station_assoc(struct ath10k *ar,
				struct ieee80211_vif *vif,
				struct ieee80211_sta *sta,
				bool reassoc)
2685
{
M
Michal Kazior 已提交
2686
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2687
	struct wmi_peer_assoc_complete_arg peer_arg;
2688 2689
	int ret = 0;

M
Michal Kazior 已提交
2690 2691
	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
2692
	ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
2693
	if (ret) {
2694
		ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
2695
			    sta->addr, arvif->vdev_id, ret);
2696 2697 2698 2699
		return ret;
	}

	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
2700
	if (ret) {
2701
		ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
2702
			    sta->addr, arvif->vdev_id, ret);
2703 2704 2705
		return ret;
	}

2706 2707 2708 2709 2710 2711
	/* Re-assoc is run only to update supported rates for given station. It
	 * doesn't make much sense to reconfigure the peer completely.
	 */
	if (!reassoc) {
		ret = ath10k_setup_peer_smps(ar, arvif, sta->addr,
					     &sta->ht_cap);
2712
		if (ret) {
2713
			ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
2714 2715 2716 2717
				    arvif->vdev_id, ret);
			return ret;
		}

2718 2719 2720 2721 2722 2723
		ret = ath10k_peer_assoc_qos_ap(ar, arvif, sta);
		if (ret) {
			ath10k_warn(ar, "failed to set qos params for STA %pM for vdev %i: %d\n",
				    sta->addr, arvif->vdev_id, ret);
			return ret;
		}
2724

2725 2726 2727 2728 2729 2730 2731 2732 2733 2734
		if (!sta->wme) {
			arvif->num_legacy_stations++;
			ret  = ath10k_recalc_rtscts_prot(arvif);
			if (ret) {
				ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
					    arvif->vdev_id, ret);
				return ret;
			}
		}

2735 2736 2737 2738 2739 2740 2741 2742
		/* Plumb cached keys only for static WEP */
		if (arvif->def_wep_key_idx != -1) {
			ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
			if (ret) {
				ath10k_warn(ar, "failed to install peer wep keys for vdev %i: %d\n",
					    arvif->vdev_id, ret);
				return ret;
			}
2743
		}
2744 2745
	}

2746 2747 2748
	return ret;
}

M
Michal Kazior 已提交
2749 2750
static int ath10k_station_disassoc(struct ath10k *ar,
				   struct ieee80211_vif *vif,
2751 2752
				   struct ieee80211_sta *sta)
{
M
Michal Kazior 已提交
2753
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2754 2755
	int ret = 0;

M
Michal Kazior 已提交
2756 2757
	lockdep_assert_held(&ar->conf_mutex);

2758 2759 2760 2761
	if (!sta->wme) {
		arvif->num_legacy_stations--;
		ret = ath10k_recalc_rtscts_prot(arvif);
		if (ret) {
2762
			ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
2763 2764 2765 2766 2767
				    arvif->vdev_id, ret);
			return ret;
		}
	}

2768 2769
	ret = ath10k_clear_peer_keys(arvif, sta->addr);
	if (ret) {
2770
		ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
2771
			    arvif->vdev_id, ret);
2772 2773 2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794
		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;

M
Michal Kazior 已提交
2795 2796
	lockdep_assert_held(&ar->conf_mutex);

2797 2798 2799 2800 2801 2802 2803 2804 2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832
	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 =
2833
				!(channel->flags & IEEE80211_CHAN_NO_IR);
2834 2835 2836 2837

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

2838 2839 2840
			ch->chan_radar =
				!!(channel->flags & IEEE80211_CHAN_RADAR);

2841
			passive = channel->flags & IEEE80211_CHAN_NO_IR;
2842 2843 2844
			ch->passive = passive;

			ch->freq = channel->center_freq;
2845
			ch->band_center_freq1 = channel->center_freq;
2846
			ch->min_power = 0;
M
Michal Kazior 已提交
2847 2848 2849
			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;
2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862
			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;

2863
			ath10k_dbg(ar, ATH10K_DBG_WMI,
K
Kalle Valo 已提交
2864 2865
				   "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
				    ch - arg.channels, arg.n_channels,
2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878
				   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;
}

2879 2880 2881 2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894
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;
}

2895
static void ath10k_regd_update(struct ath10k *ar)
2896 2897 2898
{
	struct reg_dmn_pair_mapping *regpair;
	int ret;
2899 2900
	enum wmi_dfs_region wmi_dfs_reg;
	enum nl80211_dfs_regions nl_dfs_reg;
2901

2902
	lockdep_assert_held(&ar->conf_mutex);
2903 2904 2905

	ret = ath10k_update_channel_list(ar);
	if (ret)
2906
		ath10k_warn(ar, "failed to update channel list: %d\n", ret);
2907 2908

	regpair = ar->ath_common.regulatory.regpair;
2909

2910 2911 2912 2913 2914 2915 2916
	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;
	}

2917 2918 2919
	/* Target allows setting up per-band regdomain but ath_common provides
	 * a combined one only */
	ret = ath10k_wmi_pdev_set_regdomain(ar,
2920 2921 2922
					    regpair->reg_domain,
					    regpair->reg_domain, /* 2ghz */
					    regpair->reg_domain, /* 5ghz */
2923
					    regpair->reg_2ghz_ctl,
2924 2925
					    regpair->reg_5ghz_ctl,
					    wmi_dfs_reg);
2926
	if (ret)
2927
		ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
2928
}
M
Michal Kazior 已提交
2929

2930 2931 2932 2933 2934
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
2935
	bool result;
2936 2937 2938

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

J
Janusz Dziedzic 已提交
2939
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
2940
		ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
J
Janusz Dziedzic 已提交
2941 2942 2943 2944
			   request->dfs_region);
		result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
							  request->dfs_region);
		if (!result)
2945
			ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
J
Janusz Dziedzic 已提交
2946 2947 2948
				    request->dfs_region);
	}

2949 2950 2951
	mutex_lock(&ar->conf_mutex);
	if (ar->state == ATH10K_STATE_ON)
		ath10k_regd_update(ar);
M
Michal Kazior 已提交
2952
	mutex_unlock(&ar->conf_mutex);
2953 2954 2955 2956 2957 2958
}

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

M
Michal Kazior 已提交
2959
void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
2960
{
M
Michal Kazior 已提交
2961
	lockdep_assert_held(&ar->htt.tx_lock);
2962

M
Michal Kazior 已提交
2963 2964 2965
	WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
	ar->tx_paused |= BIT(reason);
	ieee80211_stop_queues(ar->hw);
2966 2967
}

M
Michal Kazior 已提交
2968 2969
static void ath10k_mac_tx_unlock_iter(void *data, u8 *mac,
				      struct ieee80211_vif *vif)
2970
{
M
Michal Kazior 已提交
2971 2972
	struct ath10k *ar = data;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2973

M
Michal Kazior 已提交
2974 2975
	if (arvif->tx_paused)
		return;
2976

M
Michal Kazior 已提交
2977
	ieee80211_wake_queue(ar->hw, arvif->vdev_id);
2978 2979
}

M
Michal Kazior 已提交
2980
void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
2981
{
M
Michal Kazior 已提交
2982
	lockdep_assert_held(&ar->htt.tx_lock);
2983

M
Michal Kazior 已提交
2984 2985
	WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
	ar->tx_paused &= ~BIT(reason);
2986

M
Michal Kazior 已提交
2987 2988
	if (ar->tx_paused)
		return;
2989

M
Michal Kazior 已提交
2990 2991 2992 2993
	ieee80211_iterate_active_interfaces_atomic(ar->hw,
						   IEEE80211_IFACE_ITER_RESUME_ALL,
						   ath10k_mac_tx_unlock_iter,
						   ar);
2994 2995
}

M
Michal Kazior 已提交
2996
void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
2997
{
M
Michal Kazior 已提交
2998
	struct ath10k *ar = arvif->ar;
2999

M
Michal Kazior 已提交
3000
	lockdep_assert_held(&ar->htt.tx_lock);
3001

M
Michal Kazior 已提交
3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024
	WARN_ON(reason >= BITS_PER_LONG);
	arvif->tx_paused |= BIT(reason);
	ieee80211_stop_queue(ar->hw, arvif->vdev_id);
}

void ath10k_mac_vif_tx_unlock(struct ath10k_vif *arvif, int reason)
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->htt.tx_lock);

	WARN_ON(reason >= BITS_PER_LONG);
	arvif->tx_paused &= ~BIT(reason);

	if (ar->tx_paused)
		return;

	if (arvif->tx_paused)
		return;

	ieee80211_wake_queue(ar->hw, arvif->vdev_id);
}

3025 3026 3027 3028 3029 3030 3031 3032
static void ath10k_mac_vif_handle_tx_pause(struct ath10k_vif *arvif,
					   enum wmi_tlv_tx_pause_id pause_id,
					   enum wmi_tlv_tx_pause_action action)
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->htt.tx_lock);

3033 3034 3035 3036 3037 3038
	switch (action) {
	case WMI_TLV_TX_PAUSE_ACTION_STOP:
		ath10k_mac_vif_tx_lock(arvif, pause_id);
		break;
	case WMI_TLV_TX_PAUSE_ACTION_WAKE:
		ath10k_mac_vif_tx_unlock(arvif, pause_id);
3039 3040
		break;
	default:
3041 3042
		ath10k_warn(ar, "received unknown tx pause action %d on vdev %i, ignoring\n",
			    action, arvif->vdev_id);
3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058
		break;
	}
}

struct ath10k_mac_tx_pause {
	u32 vdev_id;
	enum wmi_tlv_tx_pause_id pause_id;
	enum wmi_tlv_tx_pause_action action;
};

static void ath10k_mac_handle_tx_pause_iter(void *data, u8 *mac,
					    struct ieee80211_vif *vif)
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct ath10k_mac_tx_pause *arg = data;

3059 3060 3061
	if (arvif->vdev_id != arg->vdev_id)
		return;

3062 3063 3064
	ath10k_mac_vif_handle_tx_pause(arvif, arg->pause_id, arg->action);
}

3065 3066 3067
void ath10k_mac_handle_tx_pause_vdev(struct ath10k *ar, u32 vdev_id,
				     enum wmi_tlv_tx_pause_id pause_id,
				     enum wmi_tlv_tx_pause_action action)
3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082
{
	struct ath10k_mac_tx_pause arg = {
		.vdev_id = vdev_id,
		.pause_id = pause_id,
		.action = action,
	};

	spin_lock_bh(&ar->htt.tx_lock);
	ieee80211_iterate_active_interfaces_atomic(ar->hw,
						   IEEE80211_IFACE_ITER_RESUME_ALL,
						   ath10k_mac_handle_tx_pause_iter,
						   &arg);
	spin_unlock_bh(&ar->htt.tx_lock);
}

3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094 3095 3096
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;
}

3097
static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar, struct ieee80211_vif *vif)
3098
{
3099 3100
	if (vif)
		return ath10k_vif_to_arvif(vif)->vdev_id;
3101

M
Michal Kazior 已提交
3102
	if (ar->monitor_started)
3103 3104
		return ar->monitor_vdev_id;

3105
	ath10k_warn(ar, "failed to resolve vdev id\n");
3106 3107 3108
	return 0;
}

3109 3110
static enum ath10k_hw_txrx_mode
ath10k_tx_h_get_txmode(struct ath10k *ar, struct ieee80211_vif *vif,
3111
		       struct ieee80211_sta *sta, struct sk_buff *skb)
3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134 3135 3136 3137 3138 3139 3140 3141 3142
{
	const struct ieee80211_hdr *hdr = (void *)skb->data;
	__le16 fc = hdr->frame_control;

	if (!vif || vif->type == NL80211_IFTYPE_MONITOR)
		return ATH10K_HW_TXRX_RAW;

	if (ieee80211_is_mgmt(fc))
		return ATH10K_HW_TXRX_MGMT;

	/* Workaround:
	 *
	 * NullFunc frames are mostly used to ping if a client or AP are still
	 * reachable and responsive. This implies tx status reports must be
	 * accurate - otherwise either mac80211 or userspace (e.g. hostapd) can
	 * come to a conclusion that the other end disappeared and tear down
	 * BSS connection or it can never disconnect from BSS/client (which is
	 * the case).
	 *
	 * Firmware with HTT older than 3.0 delivers incorrect tx status for
	 * NullFunc frames to driver. However there's a HTT Mgmt Tx command
	 * which seems to deliver correct tx reports for NullFunc frames. The
	 * downside of using it is it ignores client powersave state so it can
	 * end up disconnecting sleeping clients in AP mode. It should fix STA
	 * mode though because AP don't sleep.
	 */
	if (ar->htt.target_version_major < 3 &&
	    (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) &&
	    !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX, ar->fw_features))
		return ATH10K_HW_TXRX_MGMT;

3143 3144 3145 3146 3147
	/* Workaround:
	 *
	 * Some wmi-tlv firmwares for qca6174 have broken Tx key selection for
	 * NativeWifi txmode - it selects AP key instead of peer key. It seems
	 * to work with Ethernet txmode so use it.
3148 3149
	 *
	 * FIXME: Check if raw mode works with TDLS.
3150 3151 3152 3153
	 */
	if (ieee80211_is_data_present(fc) && sta && sta->tdls)
		return ATH10K_HW_TXRX_ETHERNET;

3154 3155 3156
	if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
		return ATH10K_HW_TXRX_RAW;

3157 3158 3159
	return ATH10K_HW_TXRX_NATIVE_WIFI;
}

3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171
static bool ath10k_tx_h_use_hwcrypto(struct ieee80211_vif *vif,
				     struct sk_buff *skb) {
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
	const u32 mask = IEEE80211_TX_INTFL_DONT_ENCRYPT |
			 IEEE80211_TX_CTL_INJECTED;
	if ((info->flags & mask) == mask)
		return false;
	if (vif)
		return !ath10k_vif_to_arvif(vif)->nohwcrypt;
	return true;
}

M
Michal Kazior 已提交
3172 3173
/* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
 * Control in the header.
3174
 */
M
Michal Kazior 已提交
3175
static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
3176 3177
{
	struct ieee80211_hdr *hdr = (void *)skb->data;
3178
	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3179 3180 3181 3182 3183 3184
	u8 *qos_ctl;

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

	qos_ctl = ieee80211_get_qos_ctl(hdr);
3185 3186 3187
	memmove(skb->data + IEEE80211_QOS_CTL_LEN,
		skb->data, (void *)qos_ctl - (void *)skb->data);
	skb_pull(skb, IEEE80211_QOS_CTL_LEN);
3188

3189 3190 3191
	/* Some firmware revisions don't handle sending QoS NullFunc well.
	 * These frames are mainly used for CQM purposes so it doesn't really
	 * matter whether QoS NullFunc or NullFunc are sent.
3192
	 */
M
Michal Kazior 已提交
3193
	hdr = (void *)skb->data;
3194
	if (ieee80211_is_qos_nullfunc(hdr->frame_control))
3195
		cb->htt.tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
3196 3197

	hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
3198 3199
}

3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224
static void ath10k_tx_h_8023(struct sk_buff *skb)
{
	struct ieee80211_hdr *hdr;
	struct rfc1042_hdr *rfc1042;
	struct ethhdr *eth;
	size_t hdrlen;
	u8 da[ETH_ALEN];
	u8 sa[ETH_ALEN];
	__be16 type;

	hdr = (void *)skb->data;
	hdrlen = ieee80211_hdrlen(hdr->frame_control);
	rfc1042 = (void *)skb->data + hdrlen;

	ether_addr_copy(da, ieee80211_get_DA(hdr));
	ether_addr_copy(sa, ieee80211_get_SA(hdr));
	type = rfc1042->snap_type;

	skb_pull(skb, hdrlen + sizeof(*rfc1042));
	skb_push(skb, sizeof(*eth));

	eth = (void *)skb->data;
	ether_addr_copy(eth->h_dest, da);
	ether_addr_copy(eth->h_source, sa);
	eth->h_proto = type;
3225 3226
}

M
Michal Kazior 已提交
3227 3228 3229
static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
				       struct ieee80211_vif *vif,
				       struct sk_buff *skb)
3230 3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250
{
	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);
	}
}

M
Michal Kazior 已提交
3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262
static bool ath10k_mac_need_offchan_tx_work(struct ath10k *ar)
{
	/* FIXME: Not really sure since when the behaviour changed. At some
	 * point new firmware stopped requiring creation of peer entries for
	 * offchannel tx (and actually creating them causes issues with wmi-htc
	 * tx credit replenishment and reliability). Assuming it's at least 3.4
	 * because that's when the `freq` was introduced to TX_FRM HTT command.
	 */
	return !(ar->htt.target_version_major >= 3 &&
		 ar->htt.target_version_minor >= 4);
}

3263
static int ath10k_mac_tx_wmi_mgmt(struct ath10k *ar, struct sk_buff *skb)
3264
{
3265
	struct sk_buff_head *q = &ar->wmi_mgmt_tx_queue;
3266
	int ret = 0;
3267

3268 3269 3270 3271 3272 3273
	spin_lock_bh(&ar->data_lock);

	if (skb_queue_len(q) == ATH10K_MAX_NUM_MGMT_PENDING) {
		ath10k_warn(ar, "wmi mgmt tx queue is full\n");
		ret = -ENOSPC;
		goto unlock;
M
Michal Kazior 已提交
3274 3275
	}

3276 3277
	__skb_queue_tail(q, skb);
	ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
3278

3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305
unlock:
	spin_unlock_bh(&ar->data_lock);

	return ret;
}

static void ath10k_mac_tx(struct ath10k *ar, struct sk_buff *skb)
{
	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
	struct ath10k_htt *htt = &ar->htt;
	int ret = 0;

	switch (cb->txmode) {
	case ATH10K_HW_TXRX_RAW:
	case ATH10K_HW_TXRX_NATIVE_WIFI:
	case ATH10K_HW_TXRX_ETHERNET:
		ret = ath10k_htt_tx(htt, skb);
		break;
	case ATH10K_HW_TXRX_MGMT:
		if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
			     ar->fw_features))
			ret = ath10k_mac_tx_wmi_mgmt(ar, skb);
		else if (ar->htt.target_version_major >= 3)
			ret = ath10k_htt_tx(htt, skb);
		else
			ret = ath10k_htt_mgmt_tx(htt, skb);
		break;
3306
	}
3307 3308

	if (ret) {
3309 3310
		ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
			    ret);
3311 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 3334 3335 3336
		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;
3337
	unsigned long time_left;
3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352

	/* 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);

3353
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %p\n",
3354 3355 3356 3357
			   skb);

		hdr = (struct ieee80211_hdr *)skb->data;
		peer_addr = ieee80211_get_DA(hdr);
3358
		vdev_id = ATH10K_SKB_CB(skb)->vdev_id;
3359 3360 3361 3362 3363 3364

		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
3365
			/* FIXME: should this use ath10k_warn()? */
3366
			ath10k_dbg(ar, ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
3367 3368 3369
				   peer_addr, vdev_id);

		if (!peer) {
3370 3371
			ret = ath10k_peer_create(ar, vdev_id, peer_addr,
						 WMI_PEER_TYPE_DEFAULT);
3372
			if (ret)
3373
				ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
3374 3375 3376 3377
					    peer_addr, vdev_id, ret);
		}

		spin_lock_bh(&ar->data_lock);
3378
		reinit_completion(&ar->offchan_tx_completed);
3379 3380 3381
		ar->offchan_tx_skb = skb;
		spin_unlock_bh(&ar->data_lock);

3382
		ath10k_mac_tx(ar, skb);
3383

3384 3385 3386
		time_left =
		wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ);
		if (time_left == 0)
3387
			ath10k_warn(ar, "timed out waiting for offchannel skb %p\n",
3388 3389 3390 3391 3392
				    skb);

		if (!peer) {
			ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
			if (ret)
3393
				ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
3394 3395 3396 3397 3398 3399 3400
					    peer_addr, vdev_id, ret);
		}

		mutex_unlock(&ar->conf_mutex);
	}
}

3401 3402 3403 3404 3405 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425
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);
3426
		if (ret) {
3427
			ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
3428
				    ret);
3429 3430
			ieee80211_free_txskb(ar->hw, skb);
		}
3431 3432 3433
	}
}

3434 3435 3436 3437
/************/
/* Scanning */
/************/

3438
void __ath10k_scan_finish(struct ath10k *ar)
3439
{
3440
	lockdep_assert_held(&ar->data_lock);
3441

3442 3443 3444 3445
	switch (ar->scan.state) {
	case ATH10K_SCAN_IDLE:
		break;
	case ATH10K_SCAN_RUNNING:
3446 3447
	case ATH10K_SCAN_ABORTING:
		if (!ar->scan.is_roc)
3448 3449 3450
			ieee80211_scan_completed(ar->hw,
						 (ar->scan.state ==
						  ATH10K_SCAN_ABORTING));
3451 3452
		else if (ar->scan.roc_notify)
			ieee80211_remain_on_channel_expired(ar->hw);
3453 3454 3455 3456 3457 3458 3459 3460
		/* 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;
3461
	}
3462
}
3463

3464 3465 3466 3467
void ath10k_scan_finish(struct ath10k *ar)
{
	spin_lock_bh(&ar->data_lock);
	__ath10k_scan_finish(ar);
3468 3469 3470
	spin_unlock_bh(&ar->data_lock);
}

3471
static int ath10k_scan_stop(struct ath10k *ar)
3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483
{
	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) {
3484
		ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
3485
		goto out;
3486 3487 3488
	}

	ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
3489
	if (ret == 0) {
3490
		ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
3491 3492 3493 3494
		ret = -ETIMEDOUT;
	} else if (ret > 0) {
		ret = 0;
	}
3495

3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516
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);
3517 3518

	spin_lock_bh(&ar->data_lock);
3519 3520 3521 3522 3523 3524 3525 3526 3527

	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:
3528
		ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
3529 3530 3531 3532 3533 3534 3535 3536 3537
			    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)
3538
			ath10k_warn(ar, "failed to abort scan: %d\n", ret);
3539 3540 3541

		spin_lock_bh(&ar->data_lock);
		break;
3542
	}
3543

3544
	spin_unlock_bh(&ar->data_lock);
3545
}
3546

3547 3548 3549 3550 3551 3552 3553 3554
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);
3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569
}

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) {
3570 3571
		ret = ath10k_scan_stop(ar);
		if (ret)
3572
			ath10k_warn(ar, "failed to stop scan: %d\n", ret);
3573 3574

		return -ETIMEDOUT;
3575 3576
	}

3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587
	/* If we failed to start the scan, return error code at
	 * this point.  This is probably due to some issue in the
	 * firmware, but no need to wedge the driver due to that...
	 */
	spin_lock_bh(&ar->data_lock);
	if (ar->scan.state == ATH10K_SCAN_IDLE) {
		spin_unlock_bh(&ar->data_lock);
		return -EINVAL;
	}
	spin_unlock_bh(&ar->data_lock);

3588 3589 3590
	/* 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));
3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601
	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
3602
	struct ath10k *ar = hw->priv;
3603
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
M
Michal Kazior 已提交
3604
	struct ieee80211_vif *vif = info->control.vif;
3605
	struct ieee80211_sta *sta = control->sta;
3606
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
3607
	__le16 fc = hdr->frame_control;
3608 3609 3610

	/* We should disable CCK RATE due to P2P */
	if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
3611
		ath10k_dbg(ar, ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
3612

M
Michal Kazior 已提交
3613
	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
M
Michal Kazior 已提交
3614
	ATH10K_SKB_CB(skb)->htt.freq = 0;
M
Michal Kazior 已提交
3615
	ATH10K_SKB_CB(skb)->htt.tid = ath10k_tx_h_get_tid(hdr);
3616
	ATH10K_SKB_CB(skb)->htt.nohwcrypt = !ath10k_tx_h_use_hwcrypto(vif, skb);
3617
	ATH10K_SKB_CB(skb)->vdev_id = ath10k_tx_h_get_vdev_id(ar, vif);
3618
	ATH10K_SKB_CB(skb)->txmode = ath10k_tx_h_get_txmode(ar, vif, sta, skb);
3619
	ATH10K_SKB_CB(skb)->is_protected = ieee80211_has_protected(fc);
3620

3621 3622 3623
	switch (ATH10K_SKB_CB(skb)->txmode) {
	case ATH10K_HW_TXRX_MGMT:
	case ATH10K_HW_TXRX_NATIVE_WIFI:
M
Michal Kazior 已提交
3624 3625 3626
		ath10k_tx_h_nwifi(hw, skb);
		ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
		ath10k_tx_h_seq_no(vif, skb);
3627 3628 3629 3630 3631
		break;
	case ATH10K_HW_TXRX_ETHERNET:
		ath10k_tx_h_8023(skb);
		break;
	case ATH10K_HW_TXRX_RAW:
3632 3633 3634 3635 3636
		if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
			WARN_ON_ONCE(1);
			ieee80211_free_txskb(hw, skb);
			return;
		}
3637
	}
3638 3639 3640

	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
		spin_lock_bh(&ar->data_lock);
M
Michal Kazior 已提交
3641
		ATH10K_SKB_CB(skb)->htt.freq = ar->scan.roc_freq;
3642
		ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
3643 3644
		spin_unlock_bh(&ar->data_lock);

M
Michal Kazior 已提交
3645 3646 3647
		if (ath10k_mac_need_offchan_tx_work(ar)) {
			ATH10K_SKB_CB(skb)->htt.freq = 0;
			ATH10K_SKB_CB(skb)->htt.is_offchan = true;
3648

M
Michal Kazior 已提交
3649 3650 3651 3652 3653 3654 3655
			ath10k_dbg(ar, 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;
		}
3656 3657
	}

3658
	ath10k_mac_tx(ar, skb);
3659 3660
}

3661
/* Must not be called with conf_mutex held as workers can use that also. */
M
Michal Kazior 已提交
3662
void ath10k_drain_tx(struct ath10k *ar)
3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673
{
	/* 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);
}

3674
void ath10k_halt(struct ath10k *ar)
3675
{
3676 3677
	struct ath10k_vif *arvif;

3678 3679
	lockdep_assert_held(&ar->conf_mutex);

3680 3681 3682
	clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
	ar->filter_flags = 0;
	ar->monitor = false;
M
Michal Kazior 已提交
3683
	ar->monitor_arvif = NULL;
3684 3685

	if (ar->monitor_started)
M
Michal Kazior 已提交
3686
		ath10k_monitor_stop(ar);
3687 3688

	ar->monitor_started = false;
M
Michal Kazior 已提交
3689
	ar->tx_paused = 0;
M
Michal Kazior 已提交
3690

3691
	ath10k_scan_finish(ar);
3692 3693 3694 3695 3696
	ath10k_peer_cleanup_all(ar);
	ath10k_core_stop(ar);
	ath10k_hif_power_down(ar);

	spin_lock_bh(&ar->data_lock);
3697 3698
	list_for_each_entry(arvif, &ar->arvifs, list)
		ath10k_mac_vif_beacon_cleanup(arvif);
3699 3700 3701
	spin_unlock_bh(&ar->data_lock);
}

3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 3713 3714 3715 3716 3717 3718 3719 3720
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;
}

3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733
static void ath10k_check_chain_mask(struct ath10k *ar, u32 cm, const char *dbg)
{
	/* It is not clear that allowing gaps in chainmask
	 * is helpful.  Probably it will not do what user
	 * is hoping for, so warn in that case.
	 */
	if (cm == 15 || cm == 7 || cm == 3 || cm == 1 || cm == 0)
		return;

	ath10k_warn(ar, "mac %s antenna chainmask may be invalid: 0x%x.  Suggested values: 15, 7, 3, 1 or 0.\n",
		    dbg, cm);
}

3734 3735 3736 3737 3738 3739
static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

3740 3741 3742
	ath10k_check_chain_mask(ar, tx_ant, "tx");
	ath10k_check_chain_mask(ar, rx_ant, "rx");

3743 3744 3745 3746 3747 3748 3749 3750 3751 3752
	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) {
3753
		ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
3754 3755 3756 3757 3758 3759 3760
			    ret, tx_ant);
		return ret;
	}

	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
					rx_ant);
	if (ret) {
3761
		ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
3762 3763 3764 3765 3766 3767 3768 3769 3770 3771 3772 3773 3774 3775 3776 3777 3778 3779
			    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;
}

3780 3781 3782
static int ath10k_start(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;
J
Janusz Dziedzic 已提交
3783
	u32 burst_enable;
3784
	int ret = 0;
3785

3786 3787 3788 3789 3790 3791 3792
	/*
	 * 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
3793 3794
	mutex_lock(&ar->conf_mutex);

3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806
	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);
3807
		ret = -EINVAL;
3808
		goto err;
K
Kalle Valo 已提交
3809 3810 3811
	case ATH10K_STATE_UTF:
		ret = -EBUSY;
		goto err;
3812 3813 3814 3815
	}

	ret = ath10k_hif_power_up(ar);
	if (ret) {
3816
		ath10k_err(ar, "Could not init hif: %d\n", ret);
3817
		goto err_off;
3818 3819
	}

K
Kalle Valo 已提交
3820
	ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL);
3821
	if (ret) {
3822
		ath10k_err(ar, "Could not init core: %d\n", ret);
3823
		goto err_power_down;
3824 3825
	}

3826
	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
3827
	if (ret) {
3828
		ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
3829 3830
		goto err_core_stop;
	}
3831

3832
	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 1);
3833
	if (ret) {
3834
		ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
3835 3836
		goto err_core_stop;
	}
3837

3838 3839 3840 3841 3842 3843 3844 3845 3846
	if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
		ret = ath10k_wmi_adaptive_qcs(ar, true);
		if (ret) {
			ath10k_warn(ar, "failed to enable adaptive qcs: %d\n",
				    ret);
			goto err_core_stop;
		}
	}

J
Janusz Dziedzic 已提交
3847 3848 3849 3850 3851 3852 3853 3854 3855
	if (test_bit(WMI_SERVICE_BURST, ar->wmi.svc_map)) {
		burst_enable = ar->wmi.pdev_param->burst_enable;
		ret = ath10k_wmi_pdev_set_param(ar, burst_enable, 0);
		if (ret) {
			ath10k_warn(ar, "failed to disable burst: %d\n", ret);
			goto err_core_stop;
		}
	}

3856 3857 3858 3859
	if (ar->cfg_tx_chainmask)
		__ath10k_set_antenna(ar, ar->cfg_tx_chainmask,
				     ar->cfg_rx_chainmask);

3860 3861 3862 3863 3864 3865 3866 3867 3868 3869 3870 3871
	/*
	 * 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) {
3872
		ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
3873
			    ret);
3874
		goto err_core_stop;
3875 3876
	}

3877 3878 3879 3880 3881 3882 3883 3884
	ret = ath10k_wmi_pdev_set_param(ar,
					ar->wmi.pdev_param->ani_enable, 1);
	if (ret) {
		ath10k_warn(ar, "failed to enable ani by default: %d\n",
			    ret);
		goto err_core_stop;
	}

3885 3886
	ar->ani_enabled = true;

3887
	ar->num_started_vdevs = 0;
3888 3889
	ath10k_regd_update(ar);

3890
	ath10k_spectral_start(ar);
3891
	ath10k_thermal_set_throttling(ar);
3892

3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905
	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
3906
	mutex_unlock(&ar->conf_mutex);
3907
	return ret;
3908 3909 3910 3911 3912 3913
}

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

3914 3915
	ath10k_drain_tx(ar);

M
Michal Kazior 已提交
3916
	mutex_lock(&ar->conf_mutex);
3917
	if (ar->state != ATH10K_STATE_OFF) {
3918
		ath10k_halt(ar);
3919 3920
		ar->state = ATH10K_STATE_OFF;
	}
M
Michal Kazior 已提交
3921 3922
	mutex_unlock(&ar->conf_mutex);

3923
	cancel_delayed_work_sync(&ar->scan.timeout);
3924
	cancel_work_sync(&ar->restart_work);
3925 3926
}

3927
static int ath10k_config_ps(struct ath10k *ar)
3928
{
3929 3930
	struct ath10k_vif *arvif;
	int ret = 0;
3931 3932 3933

	lockdep_assert_held(&ar->conf_mutex);

3934 3935 3936
	list_for_each_entry(arvif, &ar->arvifs, list) {
		ret = ath10k_mac_vif_setup_ps(arvif);
		if (ret) {
3937
			ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
3938 3939 3940
			break;
		}
	}
3941

3942
	return ret;
3943 3944
}

3945 3946 3947 3948 3949 3950 3951 3952 3953 3954 3955 3956 3957 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 3993 3994 3995 3996 3997 3998 3999 4000 4001
static int ath10k_mac_txpower_setup(struct ath10k *ar, int txpower)
{
	int ret;
	u32 param;

	lockdep_assert_held(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac txpower %d\n", txpower);

	param = ar->wmi.pdev_param->txpower_limit2g;
	ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
	if (ret) {
		ath10k_warn(ar, "failed to set 2g txpower %d: %d\n",
			    txpower, ret);
		return ret;
	}

	param = ar->wmi.pdev_param->txpower_limit5g;
	ret = ath10k_wmi_pdev_set_param(ar, param, txpower * 2);
	if (ret) {
		ath10k_warn(ar, "failed to set 5g txpower %d: %d\n",
			    txpower, ret);
		return ret;
	}

	return 0;
}

static int ath10k_mac_txpower_recalc(struct ath10k *ar)
{
	struct ath10k_vif *arvif;
	int ret, txpower = -1;

	lockdep_assert_held(&ar->conf_mutex);

	list_for_each_entry(arvif, &ar->arvifs, list) {
		WARN_ON(arvif->txpower < 0);

		if (txpower == -1)
			txpower = arvif->txpower;
		else
			txpower = min(txpower, arvif->txpower);
	}

	if (WARN_ON(txpower == -1))
		return -EINVAL;

	ret = ath10k_mac_txpower_setup(ar, txpower);
	if (ret) {
		ath10k_warn(ar, "failed to setup tx power %d: %d\n",
			    txpower, ret);
		return ret;
	}

	return 0;
}

4002 4003
static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
{
4004 4005 4006 4007 4008 4009
	struct ath10k *ar = hw->priv;
	struct ieee80211_conf *conf = &hw->conf;
	int ret = 0;

	mutex_lock(&ar->conf_mutex);

4010 4011
	if (changed & IEEE80211_CONF_CHANGE_PS)
		ath10k_config_ps(ar);
4012 4013

	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
4014 4015 4016 4017
		ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
		ret = ath10k_monitor_recalc(ar);
		if (ret)
			ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
4018 4019 4020 4021 4022 4023
	}

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

4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034
static u32 get_nss_from_chainmask(u16 chain_mask)
{
	if ((chain_mask & 0x15) == 0x15)
		return 4;
	else if ((chain_mask & 0x7) == 0x7)
		return 3;
	else if ((chain_mask & 0x3) == 0x3)
		return 2;
	return 1;
}

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
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
	u32 value = 0;
	struct ath10k *ar = arvif->ar;

	if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
		return 0;

	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
		value |= SM((ar->num_rf_chains - 1), WMI_TXBF_STS_CAP_OFFSET);

	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
		value |= SM((ar->num_rf_chains - 1), WMI_BF_SOUND_DIM_OFFSET);

	if (!value)
		return 0;

	if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
		value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFER;

	if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
		value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFER |
			  WMI_VDEV_PARAM_TXBF_SU_TX_BFER);

	if (ar->vht_cap_info & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE)
		value |= WMI_VDEV_PARAM_TXBF_SU_TX_BFEE;

	if (ar->vht_cap_info & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)
		value |= (WMI_VDEV_PARAM_TXBF_MU_TX_BFEE |
			  WMI_VDEV_PARAM_TXBF_SU_TX_BFEE);

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

4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085
/*
 * 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;
4086
	u32 value;
4087
	int bit;
M
Michal Kazior 已提交
4088
	int i;
4089
	u32 vdev_param;
4090

4091 4092
	vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;

4093 4094
	mutex_lock(&ar->conf_mutex);

4095 4096
	memset(arvif, 0, sizeof(*arvif));

4097 4098 4099
	arvif->ar = ar;
	arvif->vif = vif;

4100
	INIT_LIST_HEAD(&arvif->list);
4101
	INIT_WORK(&arvif->ap_csa_work, ath10k_mac_vif_ap_csa_work);
4102 4103
	INIT_DELAYED_WORK(&arvif->connection_loss_work,
			  ath10k_mac_vif_sta_connection_loss_work);
4104

4105 4106 4107 4108 4109 4110 4111
	for (i = 0; i < ARRAY_SIZE(arvif->bitrate_mask.control); i++) {
		arvif->bitrate_mask.control[i].legacy = 0xffffffff;
		memset(arvif->bitrate_mask.control[i].ht_mcs, 0xff,
		       sizeof(arvif->bitrate_mask.control[i].ht_mcs));
		memset(arvif->bitrate_mask.control[i].vht_mcs, 0xff,
		       sizeof(arvif->bitrate_mask.control[i].vht_mcs));
	}
4112

B
Ben Greear 已提交
4113
	if (ar->free_vdev_map == 0) {
4114
		ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
4115
		ret = -EBUSY;
4116
		goto err;
4117
	}
B
Ben Greear 已提交
4118
	bit = __ffs64(ar->free_vdev_map);
4119

B
Ben Greear 已提交
4120 4121
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
		   bit, ar->free_vdev_map);
4122

B
Ben Greear 已提交
4123
	arvif->vdev_id = bit;
4124 4125 4126
	arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;

	switch (vif->type) {
M
Michal Kazior 已提交
4127 4128 4129 4130
	case NL80211_IFTYPE_P2P_DEVICE:
		arvif->vdev_type = WMI_VDEV_TYPE_STA;
		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
		break;
4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153
	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;
	}

M
Michal Kazior 已提交
4154 4155 4156 4157 4158 4159 4160 4161 4162
	/* Using vdev_id as queue number will make it very easy to do per-vif
	 * tx queue locking. This shouldn't wrap due to interface combinations
	 * but do a modulo for correctness sake and prevent using offchannel tx
	 * queues for regular vif tx.
	 */
	vif->cab_queue = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);
	for (i = 0; i < ARRAY_SIZE(vif->hw_queue); i++)
		vif->hw_queue[i] = arvif->vdev_id % (IEEE80211_MAX_QUEUES - 1);

4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183
	/* Some firmware revisions don't wait for beacon tx completion before
	 * sending another SWBA event. This could lead to hardware using old
	 * (freed) beacon data in some cases, e.g. tx credit starvation
	 * combined with missed TBTT. This is very very rare.
	 *
	 * On non-IOMMU-enabled hosts this could be a possible security issue
	 * because hw could beacon some random data on the air.  On
	 * IOMMU-enabled hosts DMAR faults would occur in most cases and target
	 * device would crash.
	 *
	 * Since there are no beacon tx completions (implicit nor explicit)
	 * propagated to host the only workaround for this is to allocate a
	 * DMA-coherent buffer for a lifetime of a vif and use it for all
	 * beacon tx commands. Worst case for this approach is some beacons may
	 * become corrupted, e.g. have garbled IEs or out-of-date TIM bitmap.
	 */
	if (vif->type == NL80211_IFTYPE_ADHOC ||
	    vif->type == NL80211_IFTYPE_AP) {
		arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
							IEEE80211_MAX_FRAME_LEN,
							&arvif->beacon_paddr,
4184
							GFP_ATOMIC);
4185 4186 4187 4188 4189 4190 4191
		if (!arvif->beacon_buf) {
			ret = -ENOMEM;
			ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
				    ret);
			goto err;
		}
	}
4192 4193 4194 4195 4196 4197 4198 4199
	if (test_bit(ATH10K_FLAG_HW_CRYPTO_DISABLED, &ar->dev_flags))
		arvif->nohwcrypt = true;

	if (arvif->nohwcrypt &&
	    !test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
		ath10k_warn(ar, "cryptmode module param needed for sw crypto\n");
		goto err;
	}
4200 4201 4202 4203

	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d bcnmode %s\n",
		   arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype,
		   arvif->beacon_buf ? "single-buf" : "per-skb");
4204 4205 4206 4207

	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
				     arvif->vdev_subtype, vif->addr);
	if (ret) {
4208
		ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
4209
			    arvif->vdev_id, ret);
4210
		goto err;
4211 4212
	}

B
Ben Greear 已提交
4213
	ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
M
Michal Kazior 已提交
4214
	list_add(&arvif->list, &ar->arvifs);
4215

M
Michal Kazior 已提交
4216 4217 4218 4219
	/* It makes no sense to have firmware do keepalives. mac80211 already
	 * takes care of this with idle connection polling.
	 */
	ret = ath10k_mac_vif_disable_keepalive(arvif);
4220
	if (ret) {
M
Michal Kazior 已提交
4221
		ath10k_warn(ar, "failed to disable keepalive on vdev %i: %d\n",
4222
			    arvif->vdev_id, ret);
4223 4224
		goto err_vdev_delete;
	}
4225

4226
	arvif->def_wep_key_idx = -1;
4227

4228 4229
	vdev_param = ar->wmi.vdev_param->tx_encap_type;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4230
					ATH10K_HW_TXRX_NATIVE_WIFI);
4231
	/* 10.X firmware does not support this VDEV parameter. Do not warn */
4232
	if (ret && ret != -EOPNOTSUPP) {
4233
		ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
4234
			    arvif->vdev_id, ret);
4235 4236
		goto err_vdev_delete;
	}
4237

4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251
	if (ar->cfg_tx_chainmask) {
		u16 nss = get_nss_from_chainmask(ar->cfg_tx_chainmask);

		vdev_param = ar->wmi.vdev_param->nss;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
						nss);
		if (ret) {
			ath10k_warn(ar, "failed to set vdev %i chainmask 0x%x, nss %i: %d\n",
				    arvif->vdev_id, ar->cfg_tx_chainmask, nss,
				    ret);
			goto err_vdev_delete;
		}
	}

4252 4253
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4254 4255
		ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr,
					 WMI_PEER_TYPE_DEFAULT);
4256
		if (ret) {
4257
			ath10k_warn(ar, "failed to create vdev %i peer for AP/IBSS: %d\n",
4258
				    arvif->vdev_id, ret);
4259
			goto err_vdev_delete;
4260
		}
4261
	}
4262

4263
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
4264 4265
		ret = ath10k_mac_set_kickout(arvif);
		if (ret) {
4266
			ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
4267
				    arvif->vdev_id, ret);
4268 4269
			goto err_peer_delete;
		}
4270 4271 4272 4273 4274 4275 4276
	}

	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);
4277
		if (ret) {
4278
			ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
4279
				    arvif->vdev_id, ret);
4280 4281
			goto err_peer_delete;
		}
4282

M
Michal Kazior 已提交
4283
		ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
4284
		if (ret) {
M
Michal Kazior 已提交
4285
			ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
4286
				    arvif->vdev_id, ret);
4287 4288
			goto err_peer_delete;
		}
4289

M
Michal Kazior 已提交
4290
		ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
4291
		if (ret) {
M
Michal Kazior 已提交
4292
			ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
4293
				    arvif->vdev_id, ret);
4294 4295
			goto err_peer_delete;
		}
4296 4297
	}

4298 4299 4300 4301 4302 4303 4304
	ret = ath10k_mac_set_txbf_conf(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to set txbf for vdev %d: %d\n",
			    arvif->vdev_id, ret);
		goto err_peer_delete;
	}

4305
	ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
4306
	if (ret) {
4307
		ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
4308
			    arvif->vdev_id, ret);
4309 4310
		goto err_peer_delete;
	}
4311

4312 4313 4314 4315 4316 4317 4318
	arvif->txpower = vif->bss_conf.txpower;
	ret = ath10k_mac_txpower_recalc(ar);
	if (ret) {
		ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
		goto err_peer_delete;
	}

M
Michal Kazior 已提交
4319 4320 4321 4322 4323 4324 4325 4326 4327
	if (vif->type == NL80211_IFTYPE_MONITOR) {
		ar->monitor_arvif = arvif;
		ret = ath10k_monitor_recalc(ar);
		if (ret) {
			ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
			goto err_peer_delete;
		}
	}

4328
	mutex_unlock(&ar->conf_mutex);
4329 4330 4331
	return 0;

err_peer_delete:
4332 4333
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS)
4334 4335 4336 4337
		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
4338
	ar->free_vdev_map |= 1LL << arvif->vdev_id;
M
Michal Kazior 已提交
4339
	list_del(&arvif->list);
4340 4341

err:
4342 4343 4344 4345 4346 4347
	if (arvif->beacon_buf) {
		dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
				  arvif->beacon_buf, arvif->beacon_paddr);
		arvif->beacon_buf = NULL;
	}

4348 4349
	mutex_unlock(&ar->conf_mutex);

4350 4351 4352
	return ret;
}

4353 4354 4355 4356 4357 4358 4359 4360
static void ath10k_mac_vif_tx_unlock_all(struct ath10k_vif *arvif)
{
	int i;

	for (i = 0; i < BITS_PER_LONG; i++)
		ath10k_mac_vif_tx_unlock(arvif, i);
}

4361 4362 4363 4364 4365 4366 4367
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;

4368
	cancel_work_sync(&arvif->ap_csa_work);
4369
	cancel_delayed_work_sync(&arvif->connection_loss_work);
4370

4371 4372
	mutex_lock(&ar->conf_mutex);

4373
	spin_lock_bh(&ar->data_lock);
4374
	ath10k_mac_vif_beacon_cleanup(arvif);
4375 4376
	spin_unlock_bh(&ar->data_lock);

4377 4378
	ret = ath10k_spectral_vif_stop(arvif);
	if (ret)
4379
		ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
4380 4381
			    arvif->vdev_id, ret);

B
Ben Greear 已提交
4382
	ar->free_vdev_map |= 1LL << arvif->vdev_id;
M
Michal Kazior 已提交
4383
	list_del(&arvif->list);
4384

4385 4386
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4387 4388
		ret = ath10k_wmi_peer_delete(arvif->ar, arvif->vdev_id,
					     vif->addr);
4389
		if (ret)
4390
			ath10k_warn(ar, "failed to submit AP/IBSS self-peer removal on vdev %i: %d\n",
4391
				    arvif->vdev_id, ret);
4392 4393 4394 4395

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

4396
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
K
Kalle Valo 已提交
4397 4398
		   arvif->vdev_id);

4399 4400
	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
	if (ret)
4401
		ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
4402
			    arvif->vdev_id, ret);
4403

4404 4405 4406
	/* Some firmware revisions don't notify host about self-peer removal
	 * until after associated vdev is deleted.
	 */
4407 4408
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
4409 4410 4411 4412 4413 4414 4415 4416 4417 4418 4419
		ret = ath10k_wait_for_peer_deleted(ar, arvif->vdev_id,
						   vif->addr);
		if (ret)
			ath10k_warn(ar, "failed to remove AP self-peer on vdev %i: %d\n",
				    arvif->vdev_id, ret);

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

4420 4421
	ath10k_peer_cleanup(ar, arvif->vdev_id);

M
Michal Kazior 已提交
4422 4423 4424 4425 4426 4427 4428
	if (vif->type == NL80211_IFTYPE_MONITOR) {
		ar->monitor_arvif = NULL;
		ret = ath10k_monitor_recalc(ar);
		if (ret)
			ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
	}

4429 4430 4431 4432
	spin_lock_bh(&ar->htt.tx_lock);
	ath10k_mac_vif_tx_unlock_all(arvif);
	spin_unlock_bh(&ar->htt.tx_lock);

4433 4434 4435 4436 4437 4438 4439
	mutex_unlock(&ar->conf_mutex);
}

/*
 * FIXME: Has to be verified.
 */
#define SUPPORTED_FILTERS			\
4440
	(FIF_ALLMULTI |				\
4441 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461
	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;

4462 4463 4464
	ret = ath10k_monitor_recalc(ar);
	if (ret)
		ath10k_warn(ar, "failed to recalc montior: %d\n", ret);
4465 4466 4467 4468 4469 4470 4471 4472 4473 4474 4475 4476

	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;
4477
	u32 vdev_param, pdev_param, slottime, preamble;
4478 4479 4480 4481 4482 4483 4484 4485

	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;
4486 4487
		vdev_param = ar->wmi.vdev_param->beacon_interval;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4488
						arvif->beacon_interval);
4489
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
4490 4491 4492
			   "mac vdev %d beacon_interval %d\n",
			   arvif->vdev_id, arvif->beacon_interval);

4493
		if (ret)
4494
			ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
4495
				    arvif->vdev_id, ret);
4496 4497 4498
	}

	if (changed & BSS_CHANGED_BEACON) {
4499
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
4500 4501 4502
			   "vdev %d set beacon tx mode to staggered\n",
			   arvif->vdev_id);

4503 4504
		pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
		ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
4505 4506
						WMI_BEACON_STAGGERED_MODE);
		if (ret)
4507
			ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
4508
				    arvif->vdev_id, ret);
4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520

		ret = ath10k_mac_setup_bcn_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to update beacon template: %d\n",
				    ret);
	}

	if (changed & BSS_CHANGED_AP_PROBE_RESP) {
		ret = ath10k_mac_setup_prb_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to setup probe resp template on vdev %i: %d\n",
				    arvif->vdev_id, ret);
4521 4522
	}

4523
	if (changed & (BSS_CHANGED_BEACON_INFO | BSS_CHANGED_BEACON)) {
4524 4525
		arvif->dtim_period = info->dtim_period;

4526
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
4527 4528 4529
			   "mac vdev %d dtim_period %d\n",
			   arvif->vdev_id, arvif->dtim_period);

4530 4531
		vdev_param = ar->wmi.vdev_param->dtim_period;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4532 4533
						arvif->dtim_period);
		if (ret)
4534
			ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
4535
				    arvif->vdev_id, ret);
4536 4537 4538 4539 4540 4541 4542 4543 4544 4545
	}

	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;
	}

4546 4547
	if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
		ether_addr_copy(arvif->bssid, info->bssid);
4548 4549 4550 4551 4552

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

	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
4553
		arvif->use_cts_prot = info->use_cts_prot;
4554
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
4555
			   arvif->vdev_id, info->use_cts_prot);
K
Kalle Valo 已提交
4556

4557
		ret = ath10k_recalc_rtscts_prot(arvif);
4558
		if (ret)
4559
			ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
4560
				    arvif->vdev_id, ret);
M
Michal Kazior 已提交
4561 4562 4563 4564 4565 4566 4567

		vdev_param = ar->wmi.vdev_param->protection_mode;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
						info->use_cts_prot ? 1 : 0);
		if (ret)
			ath10k_warn(ar, "failed to set protection mode %d on vdev %i: %d\n",
					info->use_cts_prot, arvif->vdev_id, ret);
4568 4569 4570 4571 4572 4573 4574 4575 4576
	}

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

		else
			slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */

4577
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
K
Kalle Valo 已提交
4578 4579
			   arvif->vdev_id, slottime);

4580 4581
		vdev_param = ar->wmi.vdev_param->slot_time;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4582 4583
						slottime);
		if (ret)
4584
			ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
4585
				    arvif->vdev_id, ret);
4586 4587 4588 4589 4590 4591 4592 4593
	}

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

4594
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
4595 4596 4597
			   "mac vdev %d preamble %dn",
			   arvif->vdev_id, preamble);

4598 4599
		vdev_param = ar->wmi.vdev_param->preamble;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4600 4601
						preamble);
		if (ret)
4602
			ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
4603
				    arvif->vdev_id, ret);
4604 4605 4606
	}

	if (changed & BSS_CHANGED_ASSOC) {
4607 4608 4609 4610 4611 4612 4613
		if (info->assoc) {
			/* Workaround: Make sure monitor vdev is not running
			 * when associating to prevent some firmware revisions
			 * (e.g. 10.1 and 10.2) from crashing.
			 */
			if (ar->monitor_started)
				ath10k_monitor_stop(ar);
4614
			ath10k_bss_assoc(hw, vif, info);
4615
			ath10k_monitor_recalc(ar);
4616 4617
		} else {
			ath10k_bss_disassoc(hw, vif);
4618
		}
4619 4620
	}

4621 4622 4623 4624 4625 4626 4627 4628 4629 4630
	if (changed & BSS_CHANGED_TXPOWER) {
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev_id %i txpower %d\n",
			   arvif->vdev_id, info->txpower);

		arvif->txpower = info->txpower;
		ret = ath10k_mac_txpower_recalc(ar);
		if (ret)
			ath10k_warn(ar, "failed to recalc tx power: %d\n", ret);
	}

4631
	if (changed & BSS_CHANGED_PS) {
4632 4633 4634
		arvif->ps = vif->bss_conf.ps;

		ret = ath10k_config_ps(ar);
4635 4636 4637 4638 4639
		if (ret)
			ath10k_warn(ar, "failed to setup ps on vdev %i: %d\n",
				    arvif->vdev_id, ret);
	}

4640 4641 4642 4643 4644
	mutex_unlock(&ar->conf_mutex);
}

static int ath10k_hw_scan(struct ieee80211_hw *hw,
			  struct ieee80211_vif *vif,
4645
			  struct ieee80211_scan_request *hw_req)
4646 4647 4648
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
4649
	struct cfg80211_scan_request *req = &hw_req->req;
4650 4651 4652 4653 4654 4655 4656
	struct wmi_start_scan_arg arg;
	int ret = 0;
	int i;

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668
	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:
4669
		ret = -EBUSY;
4670
		break;
4671 4672 4673
	}
	spin_unlock_bh(&ar->data_lock);

4674 4675 4676
	if (ret)
		goto exit;

4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692
	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->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;
		}
4693 4694
	} else {
		arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
4695 4696 4697 4698 4699 4700 4701 4702 4703 4704
	}

	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) {
4705
		ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
4706
		spin_lock_bh(&ar->data_lock);
4707
		ar->scan.state = ATH10K_SCAN_IDLE;
4708 4709 4710 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721
		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);
4722
	ath10k_scan_abort(ar);
4723
	mutex_unlock(&ar->conf_mutex);
4724 4725

	cancel_delayed_work_sync(&ar->scan.timeout);
4726 4727
}

4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740
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).
	 *
M
Michal Kazior 已提交
4741 4742 4743 4744 4745
	 * This is also needed for 636 fw for IBSS-RSN to work more reliably.
	 *
	 * FIXME: It remains unknown if this is required for multi-vif STA
	 * interfaces on 10.1.
	 */
4746

M
Michal Kazior 已提交
4747 4748
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
	    arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765
		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)
4766
		ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
4767
			    arvif->vdev_id, ret);
4768 4769
}

4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780
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;
4781
	int ret2;
4782
	u32 flags = 0;
4783
	u32 flags2;
4784

4785 4786 4787
	/* this one needs to be done in software */
	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
		return 1;
4788

4789 4790 4791
	if (arvif->nohwcrypt)
		return 1;

4792 4793 4794 4795 4796 4797 4798 4799 4800 4801 4802 4803 4804 4805
	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;

4806 4807 4808 4809 4810 4811 4812
	if (is_wep) {
		if (cmd == SET_KEY)
			arvif->wep_keys[key->keyidx] = key;
		else
			arvif->wep_keys[key->keyidx] = NULL;
	}

4813 4814 4815 4816 4817 4818 4819 4820
	/* 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) {
4821
			ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
4822 4823 4824 4825 4826 4827 4828 4829 4830 4831
				    peer_addr);
			ret = -EOPNOTSUPP;
			goto exit;
		} else {
			/* if the peer doesn't exist there is no key to disable
			 * anymore */
			goto exit;
		}
	}

M
Michal Kazior 已提交
4832 4833 4834 4835
	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
		flags |= WMI_KEY_PAIRWISE;
	else
		flags |= WMI_KEY_GROUP;
4836 4837 4838 4839 4840

	if (is_wep) {
		if (cmd == DISABLE_KEY)
			ath10k_clear_vdev_key(arvif, key);

4841 4842 4843 4844 4845 4846 4847 4848
		/* When WEP keys are uploaded it's possible that there are
		 * stations associated already (e.g. when merging) without any
		 * keys. Static WEP needs an explicit per-peer key upload.
		 */
		if (vif->type == NL80211_IFTYPE_ADHOC &&
		    cmd == SET_KEY)
			ath10k_mac_vif_update_wep_key(arvif, key);

4849 4850 4851 4852 4853 4854 4855 4856 4857
		/* 802.1x never sets the def_wep_key_idx so each set_key()
		 * call changes default tx key.
		 *
		 * Static WEP sets def_wep_key_idx via .set_default_unicast_key
		 * after first set_key().
		 */
		if (cmd == SET_KEY && arvif->def_wep_key_idx == -1)
			flags |= WMI_KEY_TX_USAGE;
	}
4858

4859
	ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags);
4860
	if (ret) {
4861
		WARN_ON(ret > 0);
4862
		ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
4863
			    arvif->vdev_id, peer_addr, ret);
4864 4865 4866
		goto exit;
	}

4867 4868 4869 4870 4871 4872 4873 4874 4875 4876
	/* mac80211 sets static WEP keys as groupwise while firmware requires
	 * them to be installed twice as both pairwise and groupwise.
	 */
	if (is_wep && !sta && vif->type == NL80211_IFTYPE_STATION) {
		flags2 = flags;
		flags2 &= ~WMI_KEY_GROUP;
		flags2 |= WMI_KEY_PAIRWISE;

		ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags2);
		if (ret) {
4877
			WARN_ON(ret > 0);
4878 4879 4880 4881
			ath10k_warn(ar, "failed to install (ucast) key for vdev %i peer %pM: %d\n",
				    arvif->vdev_id, peer_addr, ret);
			ret2 = ath10k_install_key(arvif, key, DISABLE_KEY,
						  peer_addr, flags);
4882 4883
			if (ret2) {
				WARN_ON(ret2 > 0);
4884 4885
				ath10k_warn(ar, "failed to disable (mcast) key for vdev %i peer %pM: %d\n",
					    arvif->vdev_id, peer_addr, ret2);
4886
			}
4887 4888 4889 4890
			goto exit;
		}
	}

4891 4892
	ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);

4893 4894 4895 4896 4897 4898 4899 4900
	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 */
4901
		ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
4902 4903 4904 4905 4906 4907 4908
	spin_unlock_bh(&ar->data_lock);

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

4909 4910 4911 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937
static void ath10k_set_default_unicast_key(struct ieee80211_hw *hw,
					   struct ieee80211_vif *vif,
					   int keyidx)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	int ret;

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

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

	ath10k_dbg(ar, 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) {
		ath10k_warn(ar, "failed to update wep key index for vdev %d: %d\n",
			    arvif->vdev_id,
			    ret);
		goto unlock;
	}

	arvif->def_wep_key_idx = keyidx;
4938

4939 4940 4941 4942
unlock:
	mutex_unlock(&arvif->ar->conf_mutex);
}

4943 4944 4945 4946 4947 4948
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;
4949 4950 4951 4952
	struct cfg80211_chan_def def;
	enum ieee80211_band band;
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
4953 4954 4955 4956 4957 4958 4959 4960
	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;

4961 4962 4963 4964 4965 4966 4967
	if (WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def)))
		return;

	band = def.chan->band;
	ht_mcs_mask = arvif->bitrate_mask.control[band].ht_mcs;
	vht_mcs_mask = arvif->bitrate_mask.control[band].vht_mcs;

4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980
	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);

4981 4982 4983 4984
	nss = max_t(u32, 1, nss);
	nss = min(nss, max(ath10k_mac_max_ht_nss(ht_mcs_mask),
			   ath10k_mac_max_vht_nss(vht_mcs_mask)));

4985
	if (changed & IEEE80211_RC_BW_CHANGED) {
4986
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
4987 4988 4989 4990 4991
			   sta->addr, bw);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_CHAN_WIDTH, bw);
		if (err)
4992
			ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
4993 4994 4995 4996
				    sta->addr, bw, err);
	}

	if (changed & IEEE80211_RC_NSS_CHANGED) {
4997
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
4998 4999 5000 5001 5002
			   sta->addr, nss);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_NSS, nss);
		if (err)
5003
			ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
5004 5005 5006 5007
				    sta->addr, nss, err);
	}

	if (changed & IEEE80211_RC_SMPS_CHANGED) {
5008
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
5009 5010 5011 5012 5013
			   sta->addr, smps);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_SMPS_STATE, smps);
		if (err)
5014
			ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
5015 5016 5017
				    sta->addr, smps, err);
	}

5018 5019 5020
	if (changed & IEEE80211_RC_SUPP_RATES_CHANGED ||
	    changed & IEEE80211_RC_NSS_CHANGED) {
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM supp rates/nss\n",
5021 5022
			   sta->addr);

M
Michal Kazior 已提交
5023
		err = ath10k_station_assoc(ar, arvif->vif, sta, true);
5024
		if (err)
5025
			ath10k_warn(ar, "failed to reassociate station: %pM\n",
5026 5027 5028
				    sta->addr);
	}

5029 5030 5031
	mutex_unlock(&ar->conf_mutex);
}

M
Marek Puzyniak 已提交
5032 5033
static int ath10k_mac_inc_num_stations(struct ath10k_vif *arvif,
				       struct ieee80211_sta *sta)
5034 5035 5036 5037 5038
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->conf_mutex);

M
Marek Puzyniak 已提交
5039
	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5040 5041 5042 5043 5044 5045 5046 5047 5048 5049
		return 0;

	if (ar->num_stations >= ar->max_num_stations)
		return -ENOBUFS;

	ar->num_stations++;

	return 0;
}

M
Marek Puzyniak 已提交
5050 5051
static void ath10k_mac_dec_num_stations(struct ath10k_vif *arvif,
					struct ieee80211_sta *sta)
5052 5053 5054 5055 5056
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->conf_mutex);

M
Marek Puzyniak 已提交
5057
	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5058 5059 5060 5061 5062
		return;

	ar->num_stations--;
}

5063 5064 5065 5066 5067 5068 5069
struct ath10k_mac_tdls_iter_data {
	u32 num_tdls_stations;
	struct ieee80211_vif *curr_vif;
};

static void ath10k_mac_tdls_vif_stations_count_iter(void *data,
						    struct ieee80211_sta *sta)
5070
{
5071
	struct ath10k_mac_tdls_iter_data *iter_data = data;
5072
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5073
	struct ieee80211_vif *sta_vif = arsta->arvif->vif;
5074

5075 5076 5077 5078 5079 5080 5081 5082 5083 5084 5085 5086 5087 5088 5089 5090 5091 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115
	if (sta->tdls && sta_vif == iter_data->curr_vif)
		iter_data->num_tdls_stations++;
}

static int ath10k_mac_tdls_vif_stations_count(struct ieee80211_hw *hw,
					      struct ieee80211_vif *vif)
{
	struct ath10k_mac_tdls_iter_data data = {};

	data.curr_vif = vif;

	ieee80211_iterate_stations_atomic(hw,
					  ath10k_mac_tdls_vif_stations_count_iter,
					  &data);
	return data.num_tdls_stations;
}

static void ath10k_mac_tdls_vifs_count_iter(void *data, u8 *mac,
					    struct ieee80211_vif *vif)
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	int *num_tdls_vifs = data;

	if (vif->type != NL80211_IFTYPE_STATION)
		return;

	if (ath10k_mac_tdls_vif_stations_count(arvif->ar->hw, vif) > 0)
		(*num_tdls_vifs)++;
}

static int ath10k_mac_tdls_vifs_count(struct ieee80211_hw *hw)
{
	int num_tdls_vifs = 0;

	ieee80211_iterate_active_interfaces_atomic(hw,
						   IEEE80211_IFACE_ITER_NORMAL,
						   ath10k_mac_tdls_vifs_count_iter,
						   &num_tdls_vifs);
	return num_tdls_vifs;
}

5116 5117 5118 5119 5120 5121 5122 5123
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);
5124
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5125 5126
	int ret = 0;

5127 5128 5129 5130 5131 5132 5133
	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);
	}

5134 5135 5136 5137 5138
	/* 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);

5139 5140 5141
	mutex_lock(&ar->conf_mutex);

	if (old_state == IEEE80211_STA_NOTEXIST &&
5142
	    new_state == IEEE80211_STA_NONE) {
5143 5144 5145
		/*
		 * New station addition.
		 */
5146 5147 5148 5149
		enum wmi_peer_type peer_type = WMI_PEER_TYPE_DEFAULT;
		u32 num_tdls_stations;
		u32 num_tdls_vifs;

5150 5151 5152 5153 5154
		ath10k_dbg(ar, ATH10K_DBG_MAC,
			   "mac vdev %d peer create %pM (new sta) sta %d / %d peer %d / %d\n",
			   arvif->vdev_id, sta->addr,
			   ar->num_stations + 1, ar->max_num_stations,
			   ar->num_peers + 1, ar->max_num_peers);
5155

M
Marek Puzyniak 已提交
5156
		ret = ath10k_mac_inc_num_stations(arvif, sta);
5157 5158 5159
		if (ret) {
			ath10k_warn(ar, "refusing to associate station: too many connected already (%d)\n",
				    ar->max_num_stations);
5160 5161 5162
			goto exit;
		}

5163 5164 5165
		if (sta->tdls)
			peer_type = WMI_PEER_TYPE_TDLS;

5166
		ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr,
5167
					 peer_type);
M
Michal Kazior 已提交
5168
		if (ret) {
5169
			ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
5170
				    sta->addr, arvif->vdev_id, ret);
M
Marek Puzyniak 已提交
5171
			ath10k_mac_dec_num_stations(arvif, sta);
M
Michal Kazior 已提交
5172 5173
			goto exit;
		}
5174

5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 5185 5186 5187
		if (!sta->tdls)
			goto exit;

		num_tdls_stations = ath10k_mac_tdls_vif_stations_count(hw, vif);
		num_tdls_vifs = ath10k_mac_tdls_vifs_count(hw);

		if (num_tdls_vifs >= ar->max_num_tdls_vdevs &&
		    num_tdls_stations == 0) {
			ath10k_warn(ar, "vdev %i exceeded maximum number of tdls vdevs %i\n",
				    arvif->vdev_id, ar->max_num_tdls_vdevs);
			ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
			ath10k_mac_dec_num_stations(arvif, sta);
			ret = -ENOBUFS;
M
Michal Kazior 已提交
5188 5189
			goto exit;
		}
5190

5191 5192 5193
		if (num_tdls_stations == 0) {
			/* This is the first tdls peer in current vif */
			enum wmi_tdls_state state = WMI_TDLS_ENABLE_ACTIVE;
5194

5195 5196
			ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
							      state);
5197
			if (ret) {
5198
				ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
5199
					    arvif->vdev_id, ret);
5200 5201 5202
				ath10k_peer_delete(ar, arvif->vdev_id,
						   sta->addr);
				ath10k_mac_dec_num_stations(arvif, sta);
5203 5204
				goto exit;
			}
5205 5206 5207 5208 5209 5210 5211 5212 5213 5214
		}

		ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
						  WMI_TDLS_PEER_STATE_PEERING);
		if (ret) {
			ath10k_warn(ar,
				    "failed to update tdls peer %pM for vdev %d when adding a new sta: %i\n",
				    sta->addr, arvif->vdev_id, ret);
			ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
			ath10k_mac_dec_num_stations(arvif, sta);
5215

5216 5217 5218 5219
			if (num_tdls_stations != 0)
				goto exit;
			ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
							WMI_TDLS_DISABLE);
5220
		}
5221 5222 5223 5224 5225
	} else if ((old_state == IEEE80211_STA_NONE &&
		    new_state == IEEE80211_STA_NOTEXIST)) {
		/*
		 * Existing station deletion.
		 */
5226
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
5227 5228
			   "mac vdev %d peer delete %pM (sta gone)\n",
			   arvif->vdev_id, sta->addr);
5229

5230 5231
		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
		if (ret)
5232
			ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
5233
				    sta->addr, arvif->vdev_id, ret);
5234

M
Marek Puzyniak 已提交
5235
		ath10k_mac_dec_num_stations(arvif, sta);
5236 5237 5238 5239 5240 5241 5242 5243 5244 5245 5246 5247 5248 5249

		if (!sta->tdls)
			goto exit;

		if (ath10k_mac_tdls_vif_stations_count(hw, vif))
			goto exit;

		/* This was the last tdls peer in current vif */
		ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
						      WMI_TDLS_DISABLE);
		if (ret) {
			ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
				    arvif->vdev_id, ret);
		}
5250 5251 5252 5253 5254 5255 5256
	} else if (old_state == IEEE80211_STA_AUTH &&
		   new_state == IEEE80211_STA_ASSOC &&
		   (vif->type == NL80211_IFTYPE_AP ||
		    vif->type == NL80211_IFTYPE_ADHOC)) {
		/*
		 * New association.
		 */
5257
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM associated\n",
K
Kalle Valo 已提交
5258 5259
			   sta->addr);

M
Michal Kazior 已提交
5260
		ret = ath10k_station_assoc(ar, vif, sta, false);
5261
		if (ret)
5262
			ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
5263
				    sta->addr, arvif->vdev_id, ret);
5264
	} else if (old_state == IEEE80211_STA_ASSOC &&
5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 5284 5285 5286 5287 5288
		   new_state == IEEE80211_STA_AUTHORIZED &&
		   sta->tdls) {
		/*
		 * Tdls station authorized.
		 */
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac tdls sta %pM authorized\n",
			   sta->addr);

		ret = ath10k_station_assoc(ar, vif, sta, false);
		if (ret) {
			ath10k_warn(ar, "failed to associate tdls station %pM for vdev %i: %i\n",
				    sta->addr, arvif->vdev_id, ret);
			goto exit;
		}

		ret = ath10k_mac_tdls_peer_update(ar, arvif->vdev_id, sta,
						  WMI_TDLS_PEER_STATE_CONNECTED);
		if (ret)
			ath10k_warn(ar, "failed to update tdls peer %pM for vdev %i: %i\n",
				    sta->addr, arvif->vdev_id, ret);
	} else if (old_state == IEEE80211_STA_ASSOC &&
		    new_state == IEEE80211_STA_AUTH &&
		    (vif->type == NL80211_IFTYPE_AP ||
		     vif->type == NL80211_IFTYPE_ADHOC)) {
5289 5290 5291
		/*
		 * Disassociation.
		 */
5292
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
K
Kalle Valo 已提交
5293 5294
			   sta->addr);

M
Michal Kazior 已提交
5295
		ret = ath10k_station_disassoc(ar, vif, sta);
5296
		if (ret)
5297
			ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
5298
				    sta->addr, arvif->vdev_id, ret);
5299
	}
5300
exit:
5301 5302 5303 5304 5305
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
5306
				u16 ac, bool enable)
5307 5308
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5309 5310
	struct wmi_sta_uapsd_auto_trig_arg arg = {};
	u32 prio = 0, acc = 0;
5311 5312 5313
	u32 value = 0;
	int ret = 0;

M
Michal Kazior 已提交
5314 5315
	lockdep_assert_held(&ar->conf_mutex);

5316 5317 5318 5319 5320 5321 5322
	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;
5323 5324
		prio = 7;
		acc = 3;
5325 5326 5327 5328
		break;
	case IEEE80211_AC_VI:
		value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
5329 5330
		prio = 5;
		acc = 2;
5331 5332 5333 5334
		break;
	case IEEE80211_AC_BE:
		value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
5335 5336
		prio = 2;
		acc = 1;
5337 5338 5339 5340
		break;
	case IEEE80211_AC_BK:
		value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
5341 5342
		prio = 0;
		acc = 0;
5343 5344 5345 5346 5347 5348 5349 5350 5351 5352 5353 5354
		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) {
5355
		ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
5356 5357 5358 5359 5360 5361 5362 5363 5364 5365 5366 5367
		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)
5368
		ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
5369

M
Michal Kazior 已提交
5370 5371 5372 5373 5374 5375 5376 5377 5378 5379 5380 5381 5382 5383
	ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

	ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
			    arvif->vdev_id, ret);
		return ret;
	}

5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 5403 5404 5405 5406
	if (test_bit(WMI_SERVICE_STA_UAPSD_BASIC_AUTO_TRIG, ar->wmi.svc_map) ||
	    test_bit(WMI_SERVICE_STA_UAPSD_VAR_AUTO_TRIG, ar->wmi.svc_map)) {
		/* Only userspace can make an educated decision when to send
		 * trigger frame. The following effectively disables u-UAPSD
		 * autotrigger in firmware (which is enabled by default
		 * provided the autotrigger service is available).
		 */

		arg.wmm_ac = acc;
		arg.user_priority = prio;
		arg.service_interval = 0;
		arg.suspend_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;
		arg.delay_interval = WMI_STA_UAPSD_MAX_INTERVAL_MSEC;

		ret = ath10k_wmi_vdev_sta_uapsd(ar, arvif->vdev_id,
						arvif->bssid, &arg, 1);
		if (ret) {
			ath10k_warn(ar, "failed to set uapsd auto trigger %d\n",
				    ret);
			return ret;
		}
	}

5407 5408 5409 5410 5411 5412 5413 5414 5415
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;
5416
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5417 5418 5419 5420 5421 5422 5423
	struct wmi_wmm_params_arg *p = NULL;
	int ret;

	mutex_lock(&ar->conf_mutex);

	switch (ac) {
	case IEEE80211_AC_VO:
5424
		p = &arvif->wmm_params.ac_vo;
5425 5426
		break;
	case IEEE80211_AC_VI:
5427
		p = &arvif->wmm_params.ac_vi;
5428 5429
		break;
	case IEEE80211_AC_BE:
5430
		p = &arvif->wmm_params.ac_be;
5431 5432
		break;
	case IEEE80211_AC_BK:
5433
		p = &arvif->wmm_params.ac_bk;
5434 5435 5436 5437 5438 5439 5440 5441 5442 5443 5444 5445 5446 5447 5448 5449 5450 5451 5452
		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;

5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464 5465 5466 5467 5468 5469
	if (ar->wmi.ops->gen_vdev_wmm_conf) {
		ret = ath10k_wmi_vdev_wmm_conf(ar, arvif->vdev_id,
					       &arvif->wmm_params);
		if (ret) {
			ath10k_warn(ar, "failed to set vdev wmm params on vdev %i: %d\n",
				    arvif->vdev_id, ret);
			goto exit;
		}
	} else {
		/* This won't work well with multi-interface cases but it's
		 * better than nothing.
		 */
		ret = ath10k_wmi_pdev_set_wmm_params(ar, &arvif->wmm_params);
		if (ret) {
			ath10k_warn(ar, "failed to set wmm params: %d\n", ret);
			goto exit;
		}
5470 5471 5472 5473
	}

	ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
	if (ret)
5474
		ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 5485 5486 5487 5488 5489 5490 5491

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;
5492
	int ret = 0;
M
Michal Kazior 已提交
5493
	u32 scan_time_msec;
5494 5495 5496 5497

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
5498 5499 5500 5501 5502 5503 5504 5505 5506
	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;
5507
		ar->scan.roc_notify = true;
5508 5509 5510 5511 5512
		ret = 0;
		break;
	case ATH10K_SCAN_STARTING:
	case ATH10K_SCAN_RUNNING:
	case ATH10K_SCAN_ABORTING:
5513
		ret = -EBUSY;
5514
		break;
5515 5516 5517
	}
	spin_unlock_bh(&ar->data_lock);

5518 5519 5520
	if (ret)
		goto exit;

M
Michal Kazior 已提交
5521
	scan_time_msec = ar->hw->wiphy->max_remain_on_channel_duration * 2;
M
Michal Kazior 已提交
5522

5523 5524 5525 5526 5527 5528
	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;
M
Michal Kazior 已提交
5529 5530 5531
	arg.dwell_time_active = scan_time_msec;
	arg.dwell_time_passive = scan_time_msec;
	arg.max_scan_time = scan_time_msec;
5532 5533
	arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
	arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
5534
	arg.burst_duration_ms = duration;
5535 5536 5537

	ret = ath10k_start_scan(ar, &arg);
	if (ret) {
5538
		ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
5539
		spin_lock_bh(&ar->data_lock);
5540
		ar->scan.state = ATH10K_SCAN_IDLE;
5541 5542 5543 5544 5545 5546
		spin_unlock_bh(&ar->data_lock);
		goto exit;
	}

	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
	if (ret == 0) {
5547
		ath10k_warn(ar, "failed to switch to channel for roc scan\n");
5548 5549 5550

		ret = ath10k_scan_stop(ar);
		if (ret)
5551
			ath10k_warn(ar, "failed to stop scan: %d\n", ret);
5552

5553 5554 5555 5556
		ret = -ETIMEDOUT;
		goto exit;
	}

M
Michal Kazior 已提交
5557 5558 5559
	ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
				     msecs_to_jiffies(duration));

5560 5561 5562 5563 5564 5565 5566 5567 5568 5569 5570
	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);
5571 5572 5573 5574 5575

	spin_lock_bh(&ar->data_lock);
	ar->scan.roc_notify = false;
	spin_unlock_bh(&ar->data_lock);

5576
	ath10k_scan_abort(ar);
5577

5578 5579
	mutex_unlock(&ar->conf_mutex);

5580 5581
	cancel_delayed_work_sync(&ar->scan.timeout);

5582 5583 5584 5585 5586 5587 5588 5589
	return 0;
}

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

5590 5591 5592 5593 5594
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
5595

5596
	mutex_lock(&ar->conf_mutex);
5597
	list_for_each_entry(arvif, &ar->arvifs, list) {
5598
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
5599 5600 5601 5602
			   arvif->vdev_id, value);

		ret = ath10k_mac_set_rts(arvif, value);
		if (ret) {
5603
			ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
5604 5605 5606 5607
				    arvif->vdev_id, ret);
			break;
		}
	}
5608 5609
	mutex_unlock(&ar->conf_mutex);

5610
	return ret;
5611 5612
}

5613 5614 5615 5616 5617 5618 5619 5620 5621 5622 5623 5624 5625 5626 5627
static int ath10k_mac_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
{
	/* Even though there's a WMI enum for fragmentation threshold no known
	 * firmware actually implements it. Moreover it is not possible to rely
	 * frame fragmentation to mac80211 because firmware clears the "more
	 * fragments" bit in frame control making it impossible for remote
	 * devices to reassemble frames.
	 *
	 * Hence implement a dummy callback just to say fragmentation isn't
	 * supported. This effectively prevents mac80211 from doing frame
	 * fragmentation in software.
	 */
	return -EOPNOTSUPP;
}

5628 5629
static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
			 u32 queues, bool drop)
5630 5631
{
	struct ath10k *ar = hw->priv;
5632
	bool skip;
5633
	long time_left;
5634 5635 5636 5637 5638 5639

	/* 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
5640 5641
	mutex_lock(&ar->conf_mutex);

5642 5643 5644
	if (ar->state == ATH10K_STATE_WEDGED)
		goto skip;

5645
	time_left = wait_event_timeout(ar->htt.empty_tx_wq, ({
5646
			bool empty;
5647

5648
			spin_lock_bh(&ar->htt.tx_lock);
5649
			empty = (ar->htt.num_pending_tx == 0);
5650
			spin_unlock_bh(&ar->htt.tx_lock);
5651

M
Michal Kazior 已提交
5652 5653 5654
			skip = (ar->state == ATH10K_STATE_WEDGED) ||
			       test_bit(ATH10K_FLAG_CRASH_FLUSH,
					&ar->dev_flags);
5655 5656

			(empty || skip);
5657
		}), ATH10K_FLUSH_TIMEOUT_HZ);
5658

5659 5660 5661
	if (time_left == 0 || skip)
		ath10k_warn(ar, "failed to flush transmit queue (skip %i ar-state %i): %ld\n",
			    skip, ar->state, time_left);
M
Michal Kazior 已提交
5662

5663
skip:
M
Michal Kazior 已提交
5664
	mutex_unlock(&ar->conf_mutex);
5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675
}

/* 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;
}

5676 5677
static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
				     enum ieee80211_reconfig_type reconfig_type)
5678 5679 5680
{
	struct ath10k *ar = hw->priv;

5681 5682 5683
	if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
		return;

5684 5685 5686 5687 5688
	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) {
5689
		ath10k_info(ar, "device successfully recovered\n");
5690
		ar->state = ATH10K_STATE_ON;
M
Michal Kazior 已提交
5691
		ieee80211_wake_queues(ar->hw);
5692 5693 5694 5695 5696
	}

	mutex_unlock(&ar->conf_mutex);
}

M
Michal Kazior 已提交
5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714 5715 5716 5717 5718 5719 5720 5721 5722 5723 5724 5725 5726
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];

5727 5728 5729
	if (ar->rx_channel == survey->channel)
		survey->filled |= SURVEY_INFO_IN_USE;

M
Michal Kazior 已提交
5730 5731 5732 5733 5734
exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

5735
static bool
5736 5737 5738
ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
					enum ieee80211_band band,
					const struct cfg80211_bitrate_mask *mask)
5739
{
5740 5741
	int num_rates = 0;
	int i;
5742

5743
	num_rates += hweight32(mask->control[band].legacy);
5744

5745 5746
	for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
		num_rates += hweight8(mask->control[band].ht_mcs[i]);
5747

5748 5749
	for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
		num_rates += hweight16(mask->control[band].vht_mcs[i]);
5750

5751
	return num_rates == 1;
5752 5753 5754
}

static bool
5755 5756 5757 5758 5759 5760 5761 5762 5763 5764
ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
				       enum ieee80211_band band,
				       const struct cfg80211_bitrate_mask *mask,
				       int *nss)
{
	struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
	u16 vht_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
	u8 ht_nss_mask = 0;
	u8 vht_nss_mask = 0;
	int i;
5765

5766
	if (mask->control[band].legacy)
5767 5768
		return false;

5769 5770
	for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
		if (mask->control[band].ht_mcs[i] == 0)
5771
			continue;
5772 5773 5774 5775 5776
		else if (mask->control[band].ht_mcs[i] ==
			 sband->ht_cap.mcs.rx_mask[i])
			ht_nss_mask |= BIT(i);
		else
			return false;
5777 5778
	}

5779 5780
	for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
		if (mask->control[band].vht_mcs[i] == 0)
5781
			continue;
5782 5783 5784 5785 5786
		else if (mask->control[band].vht_mcs[i] ==
			 ath10k_mac_get_max_vht_mcs_map(vht_mcs_map, i))
			vht_nss_mask |= BIT(i);
		else
			return false;
5787 5788
	}

5789
	if (ht_nss_mask != vht_nss_mask)
5790 5791
		return false;

5792
	if (ht_nss_mask == 0)
5793 5794
		return false;

5795
	if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
5796 5797
		return false;

5798
	*nss = fls(ht_nss_mask);
5799 5800 5801 5802

	return true;
}

5803 5804 5805 5806 5807
static int
ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
					enum ieee80211_band band,
					const struct cfg80211_bitrate_mask *mask,
					u8 *rate, u8 *nss)
5808
{
5809 5810 5811 5812 5813 5814
	struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
	int rate_idx;
	int i;
	u16 bitrate;
	u8 preamble;
	u8 hw_rate;
5815

5816 5817
	if (hweight32(mask->control[band].legacy) == 1) {
		rate_idx = ffs(mask->control[band].legacy) - 1;
5818

5819 5820
		hw_rate = sband->bitrates[rate_idx].hw_value;
		bitrate = sband->bitrates[rate_idx].bitrate;
5821

5822 5823 5824 5825
		if (ath10k_mac_bitrate_is_cck(bitrate))
			preamble = WMI_RATE_PREAMBLE_CCK;
		else
			preamble = WMI_RATE_PREAMBLE_OFDM;
5826

5827 5828 5829 5830
		*nss = 1;
		*rate = preamble << 6 |
			(*nss - 1) << 4 |
			hw_rate << 0;
5831

5832
		return 0;
5833 5834
	}

5835 5836 5837 5838 5839 5840
	for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
		if (hweight8(mask->control[band].ht_mcs[i]) == 1) {
			*nss = i + 1;
			*rate = WMI_RATE_PREAMBLE_HT << 6 |
				(*nss - 1) << 4 |
				(ffs(mask->control[band].ht_mcs[i]) - 1);
5841

5842 5843 5844
			return 0;
		}
	}
5845

5846 5847 5848 5849 5850 5851
	for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
		if (hweight16(mask->control[band].vht_mcs[i]) == 1) {
			*nss = i + 1;
			*rate = WMI_RATE_PREAMBLE_VHT << 6 |
				(*nss - 1) << 4 |
				(ffs(mask->control[band].vht_mcs[i]) - 1);
5852

5853 5854 5855
			return 0;
		}
	}
5856

5857
	return -EINVAL;
5858 5859
}

5860 5861
static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
					    u8 rate, u8 nss, u8 sgi)
5862 5863 5864
{
	struct ath10k *ar = arvif->ar;
	u32 vdev_param;
5865
	int ret;
5866

5867
	lockdep_assert_held(&ar->conf_mutex);
5868

5869 5870
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac set fixed rate params vdev %i rate 0x%02hhx nss %hhu sgi %hhu\n",
		   arvif->vdev_id, rate, nss, sgi);
5871

5872
	vdev_param = ar->wmi.vdev_param->fixed_rate;
5873
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, rate);
5874
	if (ret) {
5875
		ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
5876 5877
			    rate, ret);
		return ret;
5878 5879 5880
	}

	vdev_param = ar->wmi.vdev_param->nss;
5881
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, nss);
5882
	if (ret) {
5883 5884
		ath10k_warn(ar, "failed to set nss param %d: %d\n", nss, ret);
		return ret;
5885 5886
	}

5887
	vdev_param = ar->wmi.vdev_param->sgi;
5888
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, sgi);
5889
	if (ret) {
5890 5891
		ath10k_warn(ar, "failed to set sgi param %d: %d\n", sgi, ret);
		return ret;
5892 5893
	}

5894
	return 0;
5895 5896
}

5897 5898 5899 5900 5901 5902 5903
static bool
ath10k_mac_can_set_bitrate_mask(struct ath10k *ar,
				enum ieee80211_band band,
				const struct cfg80211_bitrate_mask *mask)
{
	int i;
	u16 vht_mcs;
5904

5905 5906 5907 5908 5909 5910 5911 5912 5913 5914 5915 5916 5917 5918 5919 5920 5921
	/* Due to firmware limitation in WMI_PEER_ASSOC_CMDID it is impossible
	 * to express all VHT MCS rate masks. Effectively only the following
	 * ranges can be used: none, 0-7, 0-8 and 0-9.
	 */
	for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
		vht_mcs = mask->control[band].vht_mcs[i];

		switch (vht_mcs) {
		case 0:
		case BIT(8) - 1:
		case BIT(9) - 1:
		case BIT(10) - 1:
			break;
		default:
			ath10k_warn(ar, "refusing bitrate mask with missing 0-7 VHT MCS rates\n");
			return false;
		}
5922 5923
	}

5924 5925
	return true;
}
5926

5927 5928 5929 5930 5931 5932 5933 5934 5935 5936 5937 5938 5939 5940 5941
static void ath10k_mac_set_bitrate_mask_iter(void *data,
					     struct ieee80211_sta *sta)
{
	struct ath10k_vif *arvif = data;
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
	struct ath10k *ar = arvif->ar;

	if (arsta->arvif != arvif)
		return;

	spin_lock_bh(&ar->data_lock);
	arsta->changed |= IEEE80211_RC_SUPP_RATES_CHANGED;
	spin_unlock_bh(&ar->data_lock);

	ieee80211_queue_work(ar->hw, &arsta->update_wk);
5942 5943
}

5944 5945 5946
static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
					  struct ieee80211_vif *vif,
					  const struct cfg80211_bitrate_mask *mask)
5947 5948
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
M
Michal Kazior 已提交
5949
	struct cfg80211_chan_def def;
5950
	struct ath10k *ar = arvif->ar;
M
Michal Kazior 已提交
5951
	enum ieee80211_band band;
5952 5953
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
5954 5955 5956 5957 5958
	u8 rate;
	u8 nss;
	u8 sgi;
	int single_nss;
	int ret;
5959

M
Michal Kazior 已提交
5960 5961
	if (ath10k_mac_vif_chan(vif, &def))
		return -EPERM;
5962

M
Michal Kazior 已提交
5963
	band = def.chan->band;
5964 5965
	ht_mcs_mask = mask->control[band].ht_mcs;
	vht_mcs_mask = mask->control[band].vht_mcs;
5966

5967 5968
	sgi = mask->control[band].gi;
	if (sgi == NL80211_TXRATE_FORCE_LGI)
5969
		return -EINVAL;
5970

5971 5972 5973 5974 5975 5976 5977 5978 5979 5980 5981 5982 5983 5984
	if (ath10k_mac_bitrate_mask_has_single_rate(ar, band, mask)) {
		ret = ath10k_mac_bitrate_mask_get_single_rate(ar, band, mask,
							      &rate, &nss);
		if (ret) {
			ath10k_warn(ar, "failed to get single rate for vdev %i: %d\n",
				    arvif->vdev_id, ret);
			return ret;
		}
	} else if (ath10k_mac_bitrate_mask_get_single_nss(ar, band, mask,
							  &single_nss)) {
		rate = WMI_FIXED_RATE_NONE;
		nss = single_nss;
	} else {
		rate = WMI_FIXED_RATE_NONE;
5985 5986 5987 5988 5989
		nss = min(ar->num_rf_chains,
			  max(ath10k_mac_max_ht_nss(ht_mcs_mask),
			      ath10k_mac_max_vht_nss(vht_mcs_mask)));

		if (!ath10k_mac_can_set_bitrate_mask(ar, band, mask))
5990
			return -EINVAL;
5991 5992 5993 5994 5995 5996 5997 5998 5999

		mutex_lock(&ar->conf_mutex);

		arvif->bitrate_mask = *mask;
		ieee80211_iterate_stations_atomic(ar->hw,
						  ath10k_mac_set_bitrate_mask_iter,
						  arvif);

		mutex_unlock(&ar->conf_mutex);
6000 6001
	}

6002 6003 6004 6005 6006 6007 6008
	mutex_lock(&ar->conf_mutex);

	ret = ath10k_mac_set_fixed_rate_params(arvif, rate, nss, sgi);
	if (ret) {
		ath10k_warn(ar, "failed to set fixed rate params on vdev %i: %d\n",
			    arvif->vdev_id, ret);
		goto exit;
6009 6010
	}

6011 6012 6013 6014
exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
6015 6016
}

6017 6018 6019 6020 6021 6022 6023 6024 6025 6026 6027
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);

6028
	ath10k_dbg(ar, ATH10K_DBG_MAC,
6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046
		   "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:
6047
			ath10k_warn(ar, "Invalid bandwidth %d in rc update for %pM\n",
6048
				    sta->bandwidth, sta->addr);
6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073
			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:
6074
			ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
6075
				    sta->smps_mode, sta->addr);
6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089
			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);
}

6090 6091 6092 6093 6094 6095 6096 6097 6098 6099
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;
}

6100 6101 6102 6103 6104 6105
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)
{
6106
	struct ath10k *ar = hw->priv;
6107 6108
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

6109
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
6110 6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132
		   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;
}

M
Michal Kazior 已提交
6133
static void
6134 6135 6136 6137
ath10k_mac_update_rx_channel(struct ath10k *ar,
			     struct ieee80211_chanctx_conf *ctx,
			     struct ieee80211_vif_chanctx_switch *vifs,
			     int n_vifs)
M
Michal Kazior 已提交
6138 6139 6140 6141 6142 6143 6144 6145 6146
{
	struct cfg80211_chan_def *def = NULL;

	/* Both locks are required because ar->rx_channel is modified. This
	 * allows readers to hold either lock.
	 */
	lockdep_assert_held(&ar->conf_mutex);
	lockdep_assert_held(&ar->data_lock);

6147 6148 6149
	WARN_ON(ctx && vifs);
	WARN_ON(vifs && n_vifs != 1);

M
Michal Kazior 已提交
6150 6151 6152 6153 6154 6155 6156 6157 6158 6159 6160
	/* FIXME: Sort of an optimization and a workaround. Peers and vifs are
	 * on a linked list now. Doing a lookup peer -> vif -> chanctx for each
	 * ppdu on Rx may reduce performance on low-end systems. It should be
	 * possible to make tables/hashmaps to speed the lookup up (be vary of
	 * cpu data cache lines though regarding sizes) but to keep the initial
	 * implementation simple and less intrusive fallback to the slow lookup
	 * only for multi-channel cases. Single-channel cases will remain to
	 * use the old channel derival and thus performance should not be
	 * affected much.
	 */
	rcu_read_lock();
6161
	if (!ctx && ath10k_mac_num_chanctxs(ar) == 1) {
M
Michal Kazior 已提交
6162 6163 6164
		ieee80211_iter_chan_contexts_atomic(ar->hw,
					ath10k_mac_get_any_chandef_iter,
					&def);
6165 6166 6167 6168

		if (vifs)
			def = &vifs[0].new_ctx->def;

M
Michal Kazior 已提交
6169
		ar->rx_channel = def->chan;
6170 6171
	} else if (ctx && ath10k_mac_num_chanctxs(ar) == 0) {
		ar->rx_channel = ctx->def.chan;
M
Michal Kazior 已提交
6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190
	} else {
		ar->rx_channel = NULL;
	}
	rcu_read_unlock();
}

static int
ath10k_mac_op_add_chanctx(struct ieee80211_hw *hw,
			  struct ieee80211_chanctx_conf *ctx)
{
	struct ath10k *ar = hw->priv;

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac chanctx add freq %hu width %d ptr %p\n",
		   ctx->def.chan->center_freq, ctx->def.width, ctx);

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
6191
	ath10k_mac_update_rx_channel(ar, ctx, NULL, 0);
M
Michal Kazior 已提交
6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214
	spin_unlock_bh(&ar->data_lock);

	ath10k_recalc_radar_detection(ar);
	ath10k_monitor_recalc(ar);

	mutex_unlock(&ar->conf_mutex);

	return 0;
}

static void
ath10k_mac_op_remove_chanctx(struct ieee80211_hw *hw,
			     struct ieee80211_chanctx_conf *ctx)
{
	struct ath10k *ar = hw->priv;

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac chanctx remove freq %hu width %d ptr %p\n",
		   ctx->def.chan->center_freq, ctx->def.width, ctx);

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
6215
	ath10k_mac_update_rx_channel(ar, NULL, NULL, 0);
M
Michal Kazior 已提交
6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229 6230 6231 6232 6233
	spin_unlock_bh(&ar->data_lock);

	ath10k_recalc_radar_detection(ar);
	ath10k_monitor_recalc(ar);

	mutex_unlock(&ar->conf_mutex);
}

static void
ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
			     struct ieee80211_chanctx_conf *ctx,
			     u32 changed)
{
	struct ath10k *ar = hw->priv;

	mutex_lock(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
6234 6235
		   "mac chanctx change freq %hu width %d ptr %p changed %x\n",
		   ctx->def.chan->center_freq, ctx->def.width, ctx, changed);
M
Michal Kazior 已提交
6236 6237 6238 6239 6240 6241 6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275

	/* This shouldn't really happen because channel switching should use
	 * switch_vif_chanctx().
	 */
	if (WARN_ON(changed & IEEE80211_CHANCTX_CHANGE_CHANNEL))
		goto unlock;

	ath10k_recalc_radar_detection(ar);

	/* FIXME: How to configure Rx chains properly? */

	/* No other actions are actually necessary. Firmware maintains channel
	 * definitions per vdev internally and there's no host-side channel
	 * context abstraction to configure, e.g. channel width.
	 */

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

static int
ath10k_mac_op_assign_vif_chanctx(struct ieee80211_hw *hw,
				 struct ieee80211_vif *vif,
				 struct ieee80211_chanctx_conf *ctx)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = (void *)vif->drv_priv;
	int ret;

	mutex_lock(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac chanctx assign ptr %p vdev_id %i\n",
		   ctx, arvif->vdev_id);

	if (WARN_ON(arvif->is_started)) {
		mutex_unlock(&ar->conf_mutex);
		return -EBUSY;
	}

6276
	ret = ath10k_vdev_start(arvif, &ctx->def);
M
Michal Kazior 已提交
6277 6278 6279
	if (ret) {
		ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
			    arvif->vdev_id, vif->addr,
6280
			    ctx->def.chan->center_freq, ret);
M
Michal Kazior 已提交
6281 6282 6283 6284 6285
		goto err;
	}

	arvif->is_started = true;

6286 6287 6288 6289 6290 6291 6292
	ret = ath10k_mac_vif_setup_ps(arvif);
	if (ret) {
		ath10k_warn(ar, "failed to update vdev %i ps: %d\n",
			    arvif->vdev_id, ret);
		goto err_stop;
	}

M
Michal Kazior 已提交
6293 6294 6295 6296 6297 6298 6299 6300 6301 6302 6303 6304 6305 6306 6307 6308 6309
	if (vif->type == NL80211_IFTYPE_MONITOR) {
		ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, 0, vif->addr);
		if (ret) {
			ath10k_warn(ar, "failed to up monitor vdev %i: %d\n",
				    arvif->vdev_id, ret);
			goto err_stop;
		}

		arvif->is_up = true;
	}

	mutex_unlock(&ar->conf_mutex);
	return 0;

err_stop:
	ath10k_vdev_stop(arvif);
	arvif->is_started = false;
6310
	ath10k_mac_vif_setup_ps(arvif);
M
Michal Kazior 已提交
6311 6312 6313 6314 6315 6316 6317 6318 6319 6320 6321 6322 6323 6324 6325 6326 6327 6328 6329 6330 6331 6332 6333 6334 6335 6336 6337 6338 6339 6340 6341 6342 6343 6344 6345 6346 6347 6348 6349 6350 6351 6352 6353 6354 6355 6356 6357 6358 6359 6360 6361 6362

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

static void
ath10k_mac_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
				   struct ieee80211_vif *vif,
				   struct ieee80211_chanctx_conf *ctx)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = (void *)vif->drv_priv;
	int ret;

	mutex_lock(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac chanctx unassign ptr %p vdev_id %i\n",
		   ctx, arvif->vdev_id);

	WARN_ON(!arvif->is_started);

	if (vif->type == NL80211_IFTYPE_MONITOR) {
		WARN_ON(!arvif->is_up);

		ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
		if (ret)
			ath10k_warn(ar, "failed to down monitor vdev %i: %d\n",
				    arvif->vdev_id, ret);

		arvif->is_up = false;
	}

	ret = ath10k_vdev_stop(arvif);
	if (ret)
		ath10k_warn(ar, "failed to stop vdev %i: %d\n",
			    arvif->vdev_id, ret);

	arvif->is_started = false;

	mutex_unlock(&ar->conf_mutex);
}

static int
ath10k_mac_op_switch_vif_chanctx(struct ieee80211_hw *hw,
				 struct ieee80211_vif_chanctx_switch *vifs,
				 int n_vifs,
				 enum ieee80211_chanctx_switch_mode mode)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif;
M
Michal Kazior 已提交
6363
	int ret;
M
Michal Kazior 已提交
6364 6365 6366 6367 6368 6369 6370 6371
	int i;

	mutex_lock(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac chanctx switch n_vifs %d mode %d\n",
		   n_vifs, mode);

M
Michal Kazior 已提交
6372 6373 6374 6375 6376 6377
	/* First stop monitor interface. Some FW versions crash if there's a
	 * lone monitor interface.
	 */
	if (ar->monitor_started)
		ath10k_monitor_stop(ar);

M
Michal Kazior 已提交
6378 6379 6380 6381
	for (i = 0; i < n_vifs; i++) {
		arvif = ath10k_vif_to_arvif(vifs[i].vif);

		ath10k_dbg(ar, ATH10K_DBG_MAC,
6382
			   "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d\n",
M
Michal Kazior 已提交
6383 6384 6385 6386
			   arvif->vdev_id,
			   vifs[i].old_ctx->def.chan->center_freq,
			   vifs[i].new_ctx->def.chan->center_freq,
			   vifs[i].old_ctx->def.width,
6387
			   vifs[i].new_ctx->def.width);
M
Michal Kazior 已提交
6388

M
Michal Kazior 已提交
6389 6390
		if (WARN_ON(!arvif->is_started))
			continue;
M
Michal Kazior 已提交
6391

M
Michal Kazior 已提交
6392 6393
		if (WARN_ON(!arvif->is_up))
			continue;
M
Michal Kazior 已提交
6394

M
Michal Kazior 已提交
6395 6396 6397 6398 6399 6400
		ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
		if (ret) {
			ath10k_warn(ar, "failed to down vdev %d: %d\n",
				    arvif->vdev_id, ret);
			continue;
		}
M
Michal Kazior 已提交
6401
	}
M
Michal Kazior 已提交
6402 6403 6404 6405 6406 6407

	/* All relevant vdevs are downed and associated channel resources
	 * should be available for the channel switch now.
	 */

	spin_lock_bh(&ar->data_lock);
6408
	ath10k_mac_update_rx_channel(ar, NULL, vifs, n_vifs);
M
Michal Kazior 已提交
6409 6410
	spin_unlock_bh(&ar->data_lock);

M
Michal Kazior 已提交
6411 6412 6413 6414 6415 6416 6417 6418 6419 6420 6421 6422 6423 6424 6425 6426 6427 6428 6429 6430 6431 6432 6433 6434 6435 6436 6437 6438 6439 6440 6441 6442 6443 6444 6445 6446
	for (i = 0; i < n_vifs; i++) {
		arvif = ath10k_vif_to_arvif(vifs[i].vif);

		if (WARN_ON(!arvif->is_started))
			continue;

		if (WARN_ON(!arvif->is_up))
			continue;

		ret = ath10k_mac_setup_bcn_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to update bcn tmpl during csa: %d\n",
				    ret);

		ret = ath10k_mac_setup_prb_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to update prb tmpl during csa: %d\n",
				    ret);

		ret = ath10k_vdev_restart(arvif, &vifs[i].new_ctx->def);
		if (ret) {
			ath10k_warn(ar, "failed to restart vdev %d: %d\n",
				    arvif->vdev_id, ret);
			continue;
		}

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

	ath10k_monitor_recalc(ar);
M
Michal Kazior 已提交
6447 6448 6449 6450 6451

	mutex_unlock(&ar->conf_mutex);
	return 0;
}

6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463
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,
6464
	.set_default_unicast_key        = ath10k_set_default_unicast_key,
6465 6466 6467 6468 6469
	.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,
6470
	.set_frag_threshold		= ath10k_mac_op_set_frag_threshold,
6471 6472
	.flush				= ath10k_flush,
	.tx_last_beacon			= ath10k_tx_last_beacon,
6473 6474
	.set_antenna			= ath10k_set_antenna,
	.get_antenna			= ath10k_get_antenna,
6475
	.reconfig_complete		= ath10k_reconfig_complete,
M
Michal Kazior 已提交
6476
	.get_survey			= ath10k_get_survey,
6477
	.set_bitrate_mask		= ath10k_mac_op_set_bitrate_mask,
6478
	.sta_rc_update			= ath10k_sta_rc_update,
6479
	.get_tsf			= ath10k_get_tsf,
6480
	.ampdu_action			= ath10k_ampdu_action,
B
Ben Greear 已提交
6481 6482 6483
	.get_et_sset_count		= ath10k_debug_get_et_sset_count,
	.get_et_stats			= ath10k_debug_get_et_stats,
	.get_et_strings			= ath10k_debug_get_et_strings,
M
Michal Kazior 已提交
6484 6485 6486 6487 6488 6489
	.add_chanctx			= ath10k_mac_op_add_chanctx,
	.remove_chanctx			= ath10k_mac_op_remove_chanctx,
	.change_chanctx			= ath10k_mac_op_change_chanctx,
	.assign_vif_chanctx		= ath10k_mac_op_assign_vif_chanctx,
	.unassign_vif_chanctx		= ath10k_mac_op_unassign_vif_chanctx,
	.switch_vif_chanctx		= ath10k_mac_op_switch_vif_chanctx,
K
Kalle Valo 已提交
6490 6491 6492

	CFG80211_TESTMODE_CMD(ath10k_tm_cmd)

M
Michal Kazior 已提交
6493
#ifdef CONFIG_PM
6494 6495
	.suspend			= ath10k_wow_op_suspend,
	.resume				= ath10k_wow_op_resume,
M
Michal Kazior 已提交
6496
#endif
6497 6498 6499
#ifdef CONFIG_MAC80211_DEBUGFS
	.sta_add_debugfs		= ath10k_sta_add_debugfs,
#endif
6500 6501 6502 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537
};

#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[] = {
6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556
	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),
6557
	CHAN5G(144, 5720, 0),
6558 6559 6560 6561 6562
	CHAN5G(149, 5745, 0),
	CHAN5G(153, 5765, 0),
	CHAN5G(157, 5785, 0),
	CHAN5G(161, 5805, 0),
	CHAN5G(165, 5825, 0),
6563 6564
};

M
Michal Kazior 已提交
6565
struct ath10k *ath10k_mac_create(size_t priv_size)
6566 6567 6568 6569
{
	struct ieee80211_hw *hw;
	struct ath10k *ar;

M
Michal Kazior 已提交
6570
	hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, &ath10k_ops);
6571 6572 6573 6574 6575 6576 6577 6578 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589
	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)
6590 6591 6592 6593 6594 6595
	},
	{
	.max	= 3,
	.types	= BIT(NL80211_IFTYPE_P2P_GO)
	},
	{
M
Michal Kazior 已提交
6596 6597 6598 6599
	.max	= 1,
	.types	= BIT(NL80211_IFTYPE_P2P_DEVICE)
	},
	{
6600 6601 6602
	.max	= 7,
	.types	= BIT(NL80211_IFTYPE_AP)
	},
6603 6604
};

6605
static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
6606 6607 6608 6609 6610 6611 6612 6613 6614 6615 6616 6617 6618 6619
	{
	.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,
	},
6620 6621 6622
};

static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
6623
	{
6624 6625
		.limits = ath10k_10x_if_limits,
		.n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
6626 6627 6628
		.max_interfaces = 8,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
6629
#ifdef CONFIG_ATH10K_DFS_CERTIFIED
6630 6631 6632 6633 6634
		.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
6635
	},
6636 6637
};

6638 6639 6640
static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
	{
		.max = 2,
6641 6642 6643 6644 6645
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max = 2,
		.types = BIT(NL80211_IFTYPE_AP) |
6646 6647 6648 6649 6650 6651 6652 6653 6654
			 BIT(NL80211_IFTYPE_P2P_CLIENT) |
			 BIT(NL80211_IFTYPE_P2P_GO),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
	},
};

6655 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665 6666 6667 6668 6669 6670 6671 6672 6673 6674
static const struct ieee80211_iface_limit ath10k_tlv_qcs_if_limit[] = {
	{
		.max = 2,
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max = 2,
		.types = BIT(NL80211_IFTYPE_P2P_CLIENT),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_AP) |
			 BIT(NL80211_IFTYPE_P2P_GO),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
	},
};

6675 6676 6677 6678 6679 6680 6681 6682 6683 6684 6685 6686 6687 6688 6689 6690 6691 6692
static const struct ieee80211_iface_limit ath10k_tlv_if_limit_ibss[] = {
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_ADHOC),
	},
};

/* FIXME: This is not thouroughly tested. These combinations may over- or
 * underestimate hw/fw capabilities.
 */
static struct ieee80211_iface_combination ath10k_tlv_if_comb[] = {
	{
		.limits = ath10k_tlv_if_limit,
		.num_different_channels = 1,
6693
		.max_interfaces = 4,
6694 6695 6696 6697 6698 6699 6700 6701 6702 6703 6704 6705 6706
		.n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
	},
	{
		.limits = ath10k_tlv_if_limit_ibss,
		.num_different_channels = 1,
		.max_interfaces = 2,
		.n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
	},
};

static struct ieee80211_iface_combination ath10k_tlv_qcs_if_comb[] = {
	{
		.limits = ath10k_tlv_if_limit,
6707 6708
		.num_different_channels = 1,
		.max_interfaces = 4,
6709 6710
		.n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
	},
6711 6712 6713 6714 6715 6716
	{
		.limits = ath10k_tlv_qcs_if_limit,
		.num_different_channels = 2,
		.max_interfaces = 4,
		.n_limits = ARRAY_SIZE(ath10k_tlv_qcs_if_limit),
	},
6717 6718 6719 6720 6721 6722 6723 6724
	{
		.limits = ath10k_tlv_if_limit_ibss,
		.num_different_channels = 1,
		.max_interfaces = 2,
		.n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
	},
};

6725 6726 6727 6728 6729 6730 6731 6732 6733 6734 6735 6736 6737 6738 6739 6740 6741 6742 6743 6744 6745 6746 6747 6748 6749 6750 6751
static const struct ieee80211_iface_limit ath10k_10_4_if_limits[] = {
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max	= 16,
		.types	= BIT(NL80211_IFTYPE_AP)
	},
};

static const struct ieee80211_iface_combination ath10k_10_4_if_comb[] = {
	{
		.limits = ath10k_10_4_if_limits,
		.n_limits = ARRAY_SIZE(ath10k_10_4_if_limits),
		.max_interfaces = 16,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
#ifdef CONFIG_ATH10K_DFS_CERTIFIED
		.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
	},
};

6752 6753 6754 6755
static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
	struct ieee80211_sta_vht_cap vht_cap = {0};
	u16 mcs_map;
6756
	u32 val;
6757
	int i;
6758 6759 6760 6761

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

6762 6763 6764 6765 6766 6767 6768 6769 6770 6771 6772 6773 6774 6775 6776 6777 6778 6779
	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
		val = ar->num_rf_chains - 1;
		val <<= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
		val &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;

		vht_cap.cap |= val;
	}

	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
		val = ar->num_rf_chains - 1;
		val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
		val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;

		vht_cap.cap |= val;
	}

6780 6781 6782 6783 6784 6785 6786
	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);
	}
6787 6788 6789 6790 6791 6792 6793 6794 6795 6796 6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810 6811 6812 6813 6814 6815 6816 6817 6818 6819 6820 6821 6822 6823 6824 6825 6826 6827 6828 6829 6830 6831 6832 6833 6834 6835 6836 6837 6838 6839 6840 6841 6842 6843 6844 6845 6846 6847 6848

	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;

6849
	for (i = 0; i < ar->num_rf_chains; i++)
6850 6851 6852 6853 6854 6855 6856 6857 6858 6859 6860 6861 6862 6863 6864 6865 6866 6867 6868 6869 6870 6871 6872 6873 6874 6875 6876 6877 6878 6879 6880
		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) {
6881
		ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
6882 6883 6884 6885 6886 6887 6888 6889
		return NULL;
	}

	return arvif_iter.arvif;
}

int ath10k_mac_register(struct ath10k *ar)
{
6890 6891 6892 6893 6894 6895 6896
	static const u32 cipher_suites[] = {
		WLAN_CIPHER_SUITE_WEP40,
		WLAN_CIPHER_SUITE_WEP104,
		WLAN_CIPHER_SUITE_TKIP,
		WLAN_CIPHER_SUITE_CCMP,
		WLAN_CIPHER_SUITE_AES_CMAC,
	};
6897 6898 6899 6900 6901 6902 6903 6904 6905 6906 6907 6908 6909
	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);

M
Michal Kazior 已提交
6910 6911 6912 6913
	BUILD_BUG_ON((ARRAY_SIZE(ath10k_2ghz_channels) +
		      ARRAY_SIZE(ath10k_5ghz_channels)) !=
		     ATH10K_NUM_CHANS);

6914 6915 6916 6917
	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
6918 6919 6920 6921
		if (!channels) {
			ret = -ENOMEM;
			goto err_free;
		}
6922 6923 6924 6925 6926 6927 6928 6929

		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;

6930 6931
		/* Enable the VHT support at 2.4 GHz */
		band->vht_cap = vht_cap;
6932 6933 6934 6935 6936 6937 6938 6939 6940

		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
6941 6942
			ret = -ENOMEM;
			goto err_free;
6943 6944 6945 6946 6947 6948 6949 6950 6951 6952 6953 6954 6955 6956
		}

		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) |
6957 6958
		BIT(NL80211_IFTYPE_AP);

6959 6960 6961
	ar->hw->wiphy->available_antennas_rx = ar->supp_rx_chainmask;
	ar->hw->wiphy->available_antennas_tx = ar->supp_tx_chainmask;

6962 6963
	if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->fw_features))
		ar->hw->wiphy->interface_modes |=
M
Michal Kazior 已提交
6964
			BIT(NL80211_IFTYPE_P2P_DEVICE) |
6965 6966
			BIT(NL80211_IFTYPE_P2P_CLIENT) |
			BIT(NL80211_IFTYPE_P2P_GO);
6967

6968 6969 6970 6971 6972 6973 6974 6975 6976 6977 6978 6979 6980 6981
	ieee80211_hw_set(ar->hw, SIGNAL_DBM);
	ieee80211_hw_set(ar->hw, SUPPORTS_PS);
	ieee80211_hw_set(ar->hw, SUPPORTS_DYNAMIC_PS);
	ieee80211_hw_set(ar->hw, MFP_CAPABLE);
	ieee80211_hw_set(ar->hw, REPORTS_TX_ACK_STATUS);
	ieee80211_hw_set(ar->hw, HAS_RATE_CONTROL);
	ieee80211_hw_set(ar->hw, AP_LINK_PS);
	ieee80211_hw_set(ar->hw, SPECTRUM_MGMT);
	ieee80211_hw_set(ar->hw, SUPPORT_FAST_XMIT);
	ieee80211_hw_set(ar->hw, CONNECTION_MONITOR);
	ieee80211_hw_set(ar->hw, SUPPORTS_PER_STA_GTK);
	ieee80211_hw_set(ar->hw, WANT_MONITOR_VIF);
	ieee80211_hw_set(ar->hw, CHANCTX_STA_CSA);
	ieee80211_hw_set(ar->hw, QUEUE_CONTROL);
6982

6983 6984 6985
	if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
		ieee80211_hw_set(ar->hw, SW_CRYPTO_CONTROL);

6986
	ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
J
Janusz Dziedzic 已提交
6987
	ar->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
6988

6989
	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
6990
		ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
6991 6992

	if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
6993 6994
		ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
		ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
6995 6996 6997 6998 6999 7000
	}

	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);
7001
	ar->hw->sta_data_size = sizeof(struct ath10k_sta);
7002 7003 7004

	ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;

7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017
	if (test_bit(WMI_SERVICE_BEACON_OFFLOAD, ar->wmi.svc_map)) {
		ar->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;

		/* Firmware delivers WPS/P2P Probe Requests frames to driver so
		 * that userspace (e.g. wpa_supplicant/hostapd) can generate
		 * correct Probe Responses. This is more of a hack advert..
		 */
		ar->hw->wiphy->probe_resp_offload |=
			NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
			NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
			NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
	}

7018 7019 7020
	if (test_bit(WMI_SERVICE_TDLS, ar->wmi.svc_map))
		ar->hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;

7021
	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
M
Michal Kazior 已提交
7022
	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
7023 7024 7025
	ar->hw->wiphy->max_remain_on_channel_duration = 5000;

	ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
7026 7027
	ar->hw->wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE;

7028 7029
	ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations;

7030 7031 7032 7033 7034 7035
	ret = ath10k_wow_init(ar);
	if (ret) {
		ath10k_warn(ar, "failed to init wow: %d\n", ret);
		goto err_free;
	}

J
Janusz Dziedzic 已提交
7036 7037
	wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);

7038 7039 7040 7041
	/*
	 * on LL hardware queues are managed entirely by the FW
	 * so we only advertise to mac we can do the queues thing
	 */
M
Michal Kazior 已提交
7042 7043 7044 7045 7046 7047 7048
	ar->hw->queues = IEEE80211_MAX_QUEUES;

	/* vdev_ids are used as hw queue numbers. Make sure offchan tx queue is
	 * something that vdev_ids can't reach so that we don't stop the queue
	 * accidentally.
	 */
	ar->hw->offchannel_tx_hw_queue = IEEE80211_MAX_QUEUES - 1;
7049

7050 7051
	switch (ar->wmi.op_version) {
	case ATH10K_FW_WMI_OP_VERSION_MAIN:
7052 7053 7054
		ar->hw->wiphy->iface_combinations = ath10k_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_if_comb);
7055
		ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
7056
		break;
7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069
	case ATH10K_FW_WMI_OP_VERSION_TLV:
		if (test_bit(WMI_SERVICE_ADAPTIVE_OCS, ar->wmi.svc_map)) {
			ar->hw->wiphy->iface_combinations =
				ath10k_tlv_qcs_if_comb;
			ar->hw->wiphy->n_iface_combinations =
				ARRAY_SIZE(ath10k_tlv_qcs_if_comb);
		} else {
			ar->hw->wiphy->iface_combinations = ath10k_tlv_if_comb;
			ar->hw->wiphy->n_iface_combinations =
				ARRAY_SIZE(ath10k_tlv_if_comb);
		}
		ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
		break;
7070 7071
	case ATH10K_FW_WMI_OP_VERSION_10_1:
	case ATH10K_FW_WMI_OP_VERSION_10_2:
7072
	case ATH10K_FW_WMI_OP_VERSION_10_2_4:
7073 7074 7075 7076
		ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_10x_if_comb);
		break;
7077
	case ATH10K_FW_WMI_OP_VERSION_10_4:
7078 7079 7080
		ar->hw->wiphy->iface_combinations = ath10k_10_4_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_10_4_if_comb);
7081
		break;
7082 7083 7084 7085 7086
	case ATH10K_FW_WMI_OP_VERSION_UNSET:
	case ATH10K_FW_WMI_OP_VERSION_MAX:
		WARN_ON(1);
		ret = -EINVAL;
		goto err_free;
7087
	}
7088

7089 7090
	if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
		ar->hw->netdev_features = NETIF_F_HW_CSUM;
7091

J
Janusz Dziedzic 已提交
7092 7093 7094 7095 7096 7097 7098
	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)
7099
			ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
J
Janusz Dziedzic 已提交
7100 7101
	}

7102 7103 7104
	ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
			    ath10k_reg_notifier);
	if (ret) {
7105
		ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
M
Michal Kazior 已提交
7106
		goto err_free;
7107 7108
	}

7109 7110 7111
	ar->hw->wiphy->cipher_suites = cipher_suites;
	ar->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);

7112 7113
	ret = ieee80211_register_hw(ar->hw);
	if (ret) {
7114
		ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
M
Michal Kazior 已提交
7115
		goto err_free;
7116 7117 7118 7119 7120 7121
	}

	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
7122
			goto err_unregister;
7123 7124 7125
	}

	return 0;
M
Michal Kazior 已提交
7126 7127

err_unregister:
7128
	ieee80211_unregister_hw(ar->hw);
M
Michal Kazior 已提交
7129 7130 7131 7132
err_free:
	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);

7133 7134 7135 7136 7137 7138 7139
	return ret;
}

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

J
Janusz Dziedzic 已提交
7140 7141 7142
	if (config_enabled(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
		ar->dfs_detector->exit(ar->dfs_detector);

7143 7144 7145 7146 7147
	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);

	SET_IEEE80211_DEV(ar->hw, NULL);
}