mac.c 204.9 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 <linux/acpi.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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static struct ieee80211_rate ath10k_rates_rev2[] = {
	{ .bitrate = 10,
	  .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_1M },
	{ .bitrate = 20,
	  .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_2M,
	  .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_2M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
	{ .bitrate = 55,
	  .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_5_5M,
	  .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_5_5M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },
	{ .bitrate = 110,
	  .hw_value = ATH10K_HW_RATE_REV2_CCK_LP_11M,
	  .hw_value_short = ATH10K_HW_RATE_REV2_CCK_SP_11M,
	  .flags = IEEE80211_RATE_SHORT_PREAMBLE },

	{ .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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#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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#define ath10k_g_rates_rev2 (ath10k_rates_rev2 + 0)
#define ath10k_g_rates_rev2_size (ARRAY_SIZE(ath10k_rates_rev2))

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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,
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			     u8 hw_rate, bool cck)
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{
	const struct ieee80211_rate *rate;
	int i;

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

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		if (ath10k_mac_bitrate_is_cck(rate->bitrate) != cck)
			continue;

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		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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int ath10k_mac_ext_resource_config(struct ath10k *ar, u32 val)
{
	enum wmi_host_platform_type platform_type;
	int ret;

	if (test_bit(WMI_SERVICE_TX_MODE_DYNAMIC, ar->wmi.svc_map))
		platform_type = WMI_HOST_PLATFORM_LOW_PERF;
	else
		platform_type = WMI_HOST_PLATFORM_HIGH_PERF;

	ret = ath10k_wmi_ext_resource_config(ar, platform_type, val);

	if (ret && ret != -EOPNOTSUPP) {
		ath10k_warn(ar, "failed to configure ext resource: %d\n", ret);
		return ret;
	}

	return 0;
}

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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))
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		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);

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	if (WARN_ON(arvif->vif->type != NL80211_IFTYPE_AP &&
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		    arvif->vif->type != NL80211_IFTYPE_ADHOC &&
		    arvif->vif->type != NL80211_IFTYPE_MESH_POINT))
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		return -EINVAL;

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	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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		switch (arvif->vif->type) {
		case NL80211_IFTYPE_AP:
			flags = WMI_KEY_PAIRWISE;

			if (arvif->def_wep_key_idx == i)
				flags |= WMI_KEY_TX_USAGE;

			ret = ath10k_install_key(arvif, arvif->wep_keys[i],
						 SET_KEY, addr, flags);
			if (ret < 0)
				return ret;
			break;
		case NL80211_IFTYPE_ADHOC:
			ret = ath10k_install_key(arvif, arvif->wep_keys[i],
						 SET_KEY, addr,
						 WMI_KEY_PAIRWISE);
			if (ret < 0)
				return ret;

			ret = ath10k_install_key(arvif, arvif->wep_keys[i],
						 SET_KEY, addr, WMI_KEY_GROUP);
			if (ret < 0)
				return ret;
			break;
		default:
			WARN_ON(1);
			return -EINVAL;
		}
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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.
	 */
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	if (arvif->vif->type != NL80211_IFTYPE_ADHOC)
		return 0;

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	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) {
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		if (ether_addr_equal(peer->addr, arvif->vif->addr))
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			continue;

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		if (ether_addr_equal(peer->addr, arvif->bssid))
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			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) {
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	case NL80211_BAND_2GHZ:
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		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;
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	case NL80211_BAND_5GHZ:
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		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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623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670
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,
			      struct ieee80211_vif *vif,
			      struct ieee80211_sta *sta,
			      u32 vdev_id,
			      const u8 *addr,
676
			      enum wmi_peer_type peer_type)
677
{
678
	struct ath10k_vif *arvif;
M
Michal Kazior 已提交
679
	struct ath10k_peer *peer;
680
	int num_peers = 0;
681 682 683 684
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

685 686 687 688 689 690 691
	num_peers = ar->num_peers;

	/* Each vdev consumes a peer entry as well */
	list_for_each_entry(arvif, &ar->arvifs, list)
		num_peers++;

	if (num_peers >= ar->max_num_peers)
692 693
		return -ENOBUFS;

694
	ret = ath10k_wmi_peer_create(ar, vdev_id, addr, peer_type);
695
	if (ret) {
696
		ath10k_warn(ar, "failed to create wmi peer %pM on vdev %i: %i\n",
697
			    addr, vdev_id, ret);
698
		return ret;
699
	}
700 701

	ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
702
	if (ret) {
703
		ath10k_warn(ar, "failed to wait for created wmi peer %pM on vdev %i: %i\n",
704
			    addr, vdev_id, ret);
705
		return ret;
706
	}
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	spin_lock_bh(&ar->data_lock);

	peer = ath10k_peer_find(ar, vdev_id, addr);
	if (!peer) {
712
		spin_unlock_bh(&ar->data_lock);
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		ath10k_warn(ar, "failed to find peer %pM on vdev %i after creation\n",
			    addr, vdev_id);
		ath10k_wmi_peer_delete(ar, vdev_id, addr);
		return -ENOENT;
	}

	peer->vif = vif;
	peer->sta = sta;

	spin_unlock_bh(&ar->data_lock);

724
	ar->num_peers++;
725 726 727 728

	return 0;
}

729 730 731 732 733 734 735 736 737 738
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) {
739
		ath10k_warn(ar, "failed to set kickout threshold on vdev %i: %d\n",
740
			    arvif->vdev_id, ret);
741 742 743 744 745 746 747
		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) {
748
		ath10k_warn(ar, "failed to set keepalive minimum idle time on vdev %i: %d\n",
749
			    arvif->vdev_id, ret);
750 751 752 753 754 755 756
		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) {
757
		ath10k_warn(ar, "failed to set keepalive maximum idle time on vdev %i: %d\n",
758
			    arvif->vdev_id, ret);
759 760 761 762 763 764 765
		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) {
766
		ath10k_warn(ar, "failed to set keepalive maximum unresponsive time on vdev %i: %d\n",
767
			    arvif->vdev_id, ret);
768 769 770 771 772 773
		return ret;
	}

	return 0;
}

774
static int ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
775
{
776 777 778 779 780
	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);
781 782
}

783 784 785 786 787 788 789 790 791 792 793 794 795 796
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;

797 798
	ar->num_peers--;

799 800 801 802 803 804
	return 0;
}

static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
{
	struct ath10k_peer *peer, *tmp;
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Michal Kazior 已提交
805
	int peer_id;
806
	int i;
807 808 809 810 811 812 813 814

	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;

815
		ath10k_warn(ar, "removing stale peer %pM from vdev_id %d\n",
816 817
			    peer->addr, vdev_id);

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Michal Kazior 已提交
818 819 820 821 822
		for_each_set_bit(peer_id, peer->peer_ids,
				 ATH10K_MAX_NUM_PEER_IDS) {
			ar->peer_map[peer_id] = NULL;
		}

823 824 825 826 827
		/* Double check that peer is properly un-referenced from
		 * the peer_map
		 */
		for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
			if (ar->peer_map[i] == peer) {
828
				ath10k_warn(ar, "removing stale peer_map entry for %pM (ptr %pK idx %d)\n",
829 830 831 832 833
					    peer->addr, peer, i);
				ar->peer_map[i] = NULL;
			}
		}

834 835
		list_del(&peer->list);
		kfree(peer);
836
		ar->num_peers--;
837 838 839 840
	}
	spin_unlock_bh(&ar->data_lock);
}

841 842 843
static void ath10k_peer_cleanup_all(struct ath10k *ar)
{
	struct ath10k_peer *peer, *tmp;
844
	int i;
845 846 847 848 849 850 851 852

	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);
	}
853 854 855 856

	for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++)
		ar->peer_map[i] = NULL;

857
	spin_unlock_bh(&ar->data_lock);
M
Michal Kazior 已提交
858 859

	ar->num_peers = 0;
860
	ar->num_stations = 0;
861 862
}

863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894
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;
}

895 896 897 898
/************************/
/* Interface management */
/************************/

899 900 901 902 903 904 905 906 907 908 909 910 911
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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Michal Kazior 已提交
912 913 914 915
	if (WARN_ON(arvif->beacon_state != ATH10K_BEACON_SCHEDULED &&
		    arvif->beacon_state != ATH10K_BEACON_SENT))
		return;

916 917 918
	dev_kfree_skb_any(arvif->beacon);

	arvif->beacon = NULL;
M
Michal Kazior 已提交
919
	arvif->beacon_state = ATH10K_BEACON_SCHEDULED;
920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936
}

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;
	}
}

937 938
static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
{
939
	unsigned long time_left;
940

M
Michal Kazior 已提交
941 942
	lockdep_assert_held(&ar->conf_mutex);

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Michal Kazior 已提交
943 944 945
	if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
		return -ESHUTDOWN;

946 947 948
	time_left = wait_for_completion_timeout(&ar->vdev_setup_done,
						ATH10K_VDEV_SETUP_TIMEOUT_HZ);
	if (time_left == 0)
949 950 951 952 953
		return -ETIMEDOUT;

	return 0;
}

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Michal Kazior 已提交
954
static int ath10k_monitor_vdev_start(struct ath10k *ar, int vdev_id)
955
{
M
Michal Kazior 已提交
956
	struct cfg80211_chan_def *chandef = NULL;
957
	struct ieee80211_channel *channel = NULL;
958 959 960 961 962
	struct wmi_vdev_start_request_arg arg = {};
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
963 964 965 966 967 968 969 970
	ieee80211_iter_chan_contexts_atomic(ar->hw,
					    ath10k_mac_get_any_chandef_iter,
					    &chandef);
	if (WARN_ON_ONCE(!chandef))
		return -ENOENT;

	channel = chandef->chan;

971 972
	arg.vdev_id = vdev_id;
	arg.channel.freq = channel->center_freq;
973
	arg.channel.band_center_freq1 = chandef->center_freq1;
974 975 976

	/* TODO setup this dynamically, what in case we
	   don't have any vifs? */
977
	arg.channel.mode = chan_to_phymode(chandef);
978 979
	arg.channel.chan_radar =
			!!(channel->flags & IEEE80211_CHAN_RADAR);
980

981
	arg.channel.min_power = 0;
M
Michal Kazior 已提交
982 983 984
	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;
985

M
Michal Kazior 已提交
986 987
	reinit_completion(&ar->vdev_setup_done);

988 989
	ret = ath10k_wmi_vdev_start(ar, &arg);
	if (ret) {
990
		ath10k_warn(ar, "failed to request monitor vdev %i start: %d\n",
991
			    vdev_id, ret);
992 993 994 995 996
		return ret;
	}

	ret = ath10k_vdev_setup_sync(ar);
	if (ret) {
997
		ath10k_warn(ar, "failed to synchronize setup for monitor vdev %i start: %d\n",
998
			    vdev_id, ret);
999 1000 1001 1002 1003
		return ret;
	}

	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
	if (ret) {
1004
		ath10k_warn(ar, "failed to put up monitor vdev %i: %d\n",
1005
			    vdev_id, ret);
1006 1007 1008 1009 1010
		goto vdev_stop;
	}

	ar->monitor_vdev_id = vdev_id;

1011
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i started\n",
M
Michal Kazior 已提交
1012
		   ar->monitor_vdev_id);
1013 1014 1015 1016 1017
	return 0;

vdev_stop:
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
1018
		ath10k_warn(ar, "failed to stop monitor vdev %i after start failure: %d\n",
1019
			    ar->monitor_vdev_id, ret);
1020 1021 1022 1023

	return ret;
}

M
Michal Kazior 已提交
1024
static int ath10k_monitor_vdev_stop(struct ath10k *ar)
1025 1026 1027 1028 1029
{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

1030 1031
	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
	if (ret)
1032
		ath10k_warn(ar, "failed to put down monitor vdev %i: %d\n",
1033
			    ar->monitor_vdev_id, ret);
1034

M
Michal Kazior 已提交
1035 1036
	reinit_completion(&ar->vdev_setup_done);

1037 1038
	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
	if (ret)
1039
		ath10k_warn(ar, "failed to to request monitor vdev %i stop: %d\n",
1040
			    ar->monitor_vdev_id, ret);
1041 1042 1043

	ret = ath10k_vdev_setup_sync(ar);
	if (ret)
1044
		ath10k_warn(ar, "failed to synchronize monitor vdev %i stop: %d\n",
1045
			    ar->monitor_vdev_id, ret);
1046

1047
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %i stopped\n",
M
Michal Kazior 已提交
1048
		   ar->monitor_vdev_id);
1049 1050 1051
	return ret;
}

M
Michal Kazior 已提交
1052
static int ath10k_monitor_vdev_create(struct ath10k *ar)
1053 1054 1055 1056 1057
{
	int bit, ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

B
Ben Greear 已提交
1058
	if (ar->free_vdev_map == 0) {
1059
		ath10k_warn(ar, "failed to find free vdev id for monitor vdev\n");
1060 1061 1062
		return -ENOMEM;
	}

B
Ben Greear 已提交
1063
	bit = __ffs64(ar->free_vdev_map);
B
Ben Greear 已提交
1064

B
Ben Greear 已提交
1065
	ar->monitor_vdev_id = bit;
1066 1067 1068 1069 1070

	ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
				     WMI_VDEV_TYPE_MONITOR,
				     0, ar->mac_addr);
	if (ret) {
1071
		ath10k_warn(ar, "failed to request monitor vdev %i creation: %d\n",
1072
			    ar->monitor_vdev_id, ret);
B
Ben Greear 已提交
1073
		return ret;
1074 1075
	}

B
Ben Greear 已提交
1076
	ar->free_vdev_map &= ~(1LL << ar->monitor_vdev_id);
1077
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
1078 1079 1080 1081 1082
		   ar->monitor_vdev_id);

	return 0;
}

M
Michal Kazior 已提交
1083
static int ath10k_monitor_vdev_delete(struct ath10k *ar)
1084 1085 1086 1087 1088 1089 1090
{
	int ret = 0;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
	if (ret) {
1091
		ath10k_warn(ar, "failed to request wmi monitor vdev %i removal: %d\n",
1092
			    ar->monitor_vdev_id, ret);
1093 1094 1095
		return ret;
	}

B
Ben Greear 已提交
1096
	ar->free_vdev_map |= 1LL << ar->monitor_vdev_id;
1097

1098
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
1099 1100 1101 1102
		   ar->monitor_vdev_id);
	return ret;
}

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Michal Kazior 已提交
1103 1104 1105 1106 1107 1108 1109 1110
static int ath10k_monitor_start(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_monitor_vdev_create(ar);
	if (ret) {
1111
		ath10k_warn(ar, "failed to create monitor vdev: %d\n", ret);
M
Michal Kazior 已提交
1112 1113 1114 1115 1116
		return ret;
	}

	ret = ath10k_monitor_vdev_start(ar, ar->monitor_vdev_id);
	if (ret) {
1117
		ath10k_warn(ar, "failed to start monitor vdev: %d\n", ret);
M
Michal Kazior 已提交
1118 1119 1120 1121 1122
		ath10k_monitor_vdev_delete(ar);
		return ret;
	}

	ar->monitor_started = true;
1123
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor started\n");
M
Michal Kazior 已提交
1124 1125 1126 1127

	return 0;
}

1128
static int ath10k_monitor_stop(struct ath10k *ar)
M
Michal Kazior 已提交
1129 1130 1131 1132 1133 1134
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ret = ath10k_monitor_vdev_stop(ar);
1135
	if (ret) {
1136
		ath10k_warn(ar, "failed to stop monitor vdev: %d\n", ret);
1137 1138
		return ret;
	}
M
Michal Kazior 已提交
1139 1140

	ret = ath10k_monitor_vdev_delete(ar);
1141
	if (ret) {
1142
		ath10k_warn(ar, "failed to delete monitor vdev: %d\n", ret);
1143 1144
		return ret;
	}
M
Michal Kazior 已提交
1145 1146

	ar->monitor_started = false;
1147
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac monitor stopped\n");
1148 1149 1150 1151

	return 0;
}

M
Michal Kazior 已提交
1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169
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 ||
1170
	       ar->filter_flags & FIF_OTHER_BSS ||
M
Michal Kazior 已提交
1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189
	       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;
}

1190 1191
static int ath10k_monitor_recalc(struct ath10k *ar)
{
M
Michal Kazior 已提交
1192 1193 1194
	bool needed;
	bool allowed;
	int ret;
1195 1196 1197

	lockdep_assert_held(&ar->conf_mutex);

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	needed = ath10k_mac_monitor_vdev_is_needed(ar);
	allowed = ath10k_mac_monitor_vdev_is_allowed(ar);
1200 1201

	ath10k_dbg(ar, ATH10K_DBG_MAC,
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		   "mac monitor recalc started? %d needed? %d allowed? %d\n",
		   ar->monitor_started, needed, allowed);
1204

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	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)
1211 1212
				ath10k_warn(ar, "failed to stop disallowed monitor: %d\n",
					    ret);
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				/* not serious */
		}
1215

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		return -EPERM;
	}
1218

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	if (needed == ar->monitor_started)
1220 1221
		return 0;

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	if (needed)
1223
		return ath10k_monitor_start(ar);
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	else
		return ath10k_monitor_stop(ar);
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}

1228 1229 1230 1231 1232 1233 1234 1235 1236
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;

1237
	rts_cts |= SM(WMI_RTSCTS_ENABLED, WMI_RTSCTS_SET);
1238 1239 1240 1241

	if (arvif->num_legacy_stations > 0)
		rts_cts |= SM(WMI_RTSCTS_ACROSS_SW_RETRIES,
			      WMI_RTSCTS_PROFILE);
1242 1243 1244
	else
		rts_cts |= SM(WMI_RTSCTS_FOR_SECOND_RATESERIES,
			      WMI_RTSCTS_PROFILE);
1245 1246 1247 1248 1249

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

1250 1251 1252 1253 1254 1255 1256 1257
static int ath10k_start_cac(struct ath10k *ar)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	set_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);

1258
	ret = ath10k_monitor_recalc(ar);
1259
	if (ret) {
1260
		ath10k_warn(ar, "failed to start monitor (cac): %d\n", ret);
1261 1262 1263 1264
		clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
		return ret;
	}

1265
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac start monitor vdev %d\n",
1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279
		   ar->monitor_vdev_id);

	return 0;
}

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

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

	clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
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	ath10k_monitor_stop(ar);
1281

1282
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac cac finished\n");
1283 1284 1285 1286

	return 0;
}

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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;
}

1308
static void ath10k_recalc_radar_detection(struct ath10k *ar)
1309 1310 1311 1312 1313 1314 1315
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

	ath10k_stop_cac(ar);

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	if (!ath10k_mac_has_radar_enabled(ar))
1317 1318
		return;

1319
	if (ar->num_started_vdevs > 0)
1320 1321 1322 1323 1324 1325 1326 1327 1328
		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.
		 */
1329
		ath10k_warn(ar, "failed to start CAC: %d\n", ret);
1330 1331 1332 1333
		ieee80211_radar_detected(ar->hw);
	}
}

1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366
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;
	}

1405
	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));

1410 1411 1412 1413 1414
	if (restart)
		ret = ath10k_wmi_vdev_restart(ar, &arg);
	else
		ret = ath10k_wmi_vdev_start(ar, &arg);

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	if (ret) {
1416
		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) {
1423 1424 1425
		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;
	}

1429 1430 1431
	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)
1437
{
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	return ath10k_vdev_start_restart(arvif, def, false);
1439 1440
}

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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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}

1447 1448 1449 1450 1451 1452 1453 1454
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;

1455
	if (arvif->vif->type != NL80211_IFTYPE_AP || !arvif->vif->p2p)
1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517
		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;

1518 1519 1520 1521
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
	    arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
		return 0;

1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566
	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;

1567 1568 1569
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP)
		return 0;

1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587
	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;
}

1662
static void ath10k_control_beaconing(struct ath10k_vif *arvif,
1663
				     struct ieee80211_bss_conf *info)
1664
{
1665
	struct ath10k *ar = arvif->ar;
1666 1667
	int ret = 0;

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

1670
	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);
1675 1676 1677

		arvif->is_up = false;

1678
		spin_lock_bh(&arvif->ar->data_lock);
1679
		ath10k_mac_vif_beacon_free(arvif);
1680 1681
		spin_unlock_bh(&arvif->ar->data_lock);

1682 1683 1684 1685 1686
		return;
	}

	arvif->tx_seq_no = 0x1000;

1687
	arvif->aid = 0;
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	ether_addr_copy(arvif->bssid, info->bssid);
1689 1690 1691

	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, arvif->aid,
				 arvif->bssid);
1692
	if (ret) {
1693
		ath10k_warn(ar, "failed to bring up vdev %d: %i\n",
1694
			    arvif->vdev_id, ret);
1695 1696
		return;
	}
1697 1698 1699

	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;
	}

1707
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
1708 1709 1710 1711 1712 1713
}

static void ath10k_control_ibss(struct ath10k_vif *arvif,
				struct ieee80211_bss_conf *info,
				const u8 self_peer[ETH_ALEN])
{
1714
	struct ath10k *ar = arvif->ar;
1715
	u32 vdev_param;
1716 1717
	int ret = 0;

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

1720
	if (!info->ibss_joined) {
1721
		if (is_zero_ether_addr(arvif->bssid))
1722 1723
			return;

1724
		eth_zero_addr(arvif->bssid);
1725 1726 1727 1728

		return;
	}

1729 1730
	vdev_param = arvif->ar->wmi.vdev_param->atim_window;
	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
1731 1732
					ATH10K_DEFAULT_ATIM);
	if (ret)
1733
		ath10k_warn(ar, "failed to set IBSS ATIM for vdev %d: %d\n",
1734 1735 1736
			    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;
}

1788
static int ath10k_mac_num_vifs_started(struct ath10k *ar)
1789 1790 1791 1792 1793 1794 1795
{
	struct ath10k_vif *arvif;
	int num = 0;

	lockdep_assert_held(&ar->conf_mutex);

	list_for_each_entry(arvif, &ar->arvifs, list)
1796
		if (arvif->is_started)
1797 1798 1799 1800 1801
			num++;

	return num;
}

1802
static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
1803
{
1804
	struct ath10k *ar = arvif->ar;
1805
	struct ieee80211_vif *vif = arvif->vif;
1806
	struct ieee80211_conf *conf = &ar->hw->conf;
1807 1808 1809
	enum wmi_sta_powersave_param param;
	enum wmi_sta_ps_mode psmode;
	int ret;
1810
	int ps_timeout;
1811
	bool enable_ps;
1812

M
Michal Kazior 已提交
1813 1814
	lockdep_assert_held(&arvif->ar->conf_mutex);

1815 1816
	if (arvif->vif->type != NL80211_IFTYPE_STATION)
		return 0;
1817

1818 1819
	enable_ps = arvif->ps;

1820
	if (enable_ps && ath10k_mac_num_vifs_started(ar) > 1 &&
1821
	    !test_bit(ATH10K_FW_FEATURE_MULTI_VIF_PS_SUPPORT,
1822
		      ar->running_fw->fw_file.fw_features)) {
1823 1824 1825 1826 1827
		ath10k_warn(ar, "refusing to enable ps on vdev %i: not supported by fw\n",
			    arvif->vdev_id);
		enable_ps = false;
	}

1828 1829 1830 1831 1832 1833 1834 1835
	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) {
1836 1837 1838
		psmode = WMI_STA_PS_MODE_ENABLED;
		param = WMI_STA_PS_PARAM_INACTIVITY_TIME;

1839 1840 1841 1842 1843 1844 1845
		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;
		}

1846
		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
1847
						  ps_timeout);
1848
		if (ret) {
1849
			ath10k_warn(ar, "failed to set inactivity time for vdev %d: %i\n",
1850
				    arvif->vdev_id, ret);
1851
			return ret;
1852 1853 1854 1855 1856
		}
	} else {
		psmode = WMI_STA_PS_MODE_DISABLED;
	}

1857
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
K
Kalle Valo 已提交
1858 1859
		   arvif->vdev_id, psmode ? "enable" : "disable");

1860 1861
	ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
	if (ret) {
1862
		ath10k_warn(ar, "failed to set PS Mode %d for vdev %d: %d\n",
1863
			    psmode, arvif->vdev_id, ret);
1864 1865 1866 1867
		return ret;
	}

	return 0;
1868 1869
}

M
Michal Kazior 已提交
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 1895 1896 1897 1898 1899 1900 1901
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;
}

1902 1903 1904 1905 1906 1907
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;

1908 1909 1910 1911 1912
	lockdep_assert_held(&arvif->ar->conf_mutex);

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

1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949
	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);
}

1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
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);
}

2019 2020 2021 2022
/**********************/
/* Station management */
/**********************/

M
Michal Kazior 已提交
2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039
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;
}

2040
static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
M
Michal Kazior 已提交
2041
				      struct ieee80211_vif *vif,
2042 2043 2044
				      struct ieee80211_sta *sta,
				      struct wmi_peer_assoc_complete_arg *arg)
{
M
Michal Kazior 已提交
2045
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2046
	u32 aid;
M
Michal Kazior 已提交
2047

M
Michal Kazior 已提交
2048 2049
	lockdep_assert_held(&ar->conf_mutex);

2050 2051 2052 2053 2054
	if (vif->type == NL80211_IFTYPE_STATION)
		aid = vif->bss_conf.aid;
	else
		aid = sta->aid;

K
Kalle Valo 已提交
2055
	ether_addr_copy(arg->addr, sta->addr);
2056
	arg->vdev_id = arvif->vdev_id;
2057
	arg->peer_aid = aid;
2058
	arg->peer_flags |= arvif->ar->wmi.peer_flags->auth;
M
Michal Kazior 已提交
2059
	arg->peer_listen_intval = ath10k_peer_assoc_h_listen_intval(ar, vif);
2060
	arg->peer_num_spatial_streams = 1;
M
Michal Kazior 已提交
2061
	arg->peer_caps = vif->bss_conf.assoc_capability;
2062 2063 2064
}

static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
M
Michal Kazior 已提交
2065
				       struct ieee80211_vif *vif,
2066
				       struct ieee80211_sta *sta,
2067 2068 2069
				       struct wmi_peer_assoc_complete_arg *arg)
{
	struct ieee80211_bss_conf *info = &vif->bss_conf;
M
Michal Kazior 已提交
2070
	struct cfg80211_chan_def def;
2071 2072 2073 2074
	struct cfg80211_bss *bss;
	const u8 *rsnie = NULL;
	const u8 *wpaie = NULL;

M
Michal Kazior 已提交
2075 2076
	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
2077 2078 2079 2080 2081
	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);
2082 2083 2084 2085 2086 2087 2088 2089 2090
	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,
2091 2092 2093
						WLAN_OUI_TYPE_MICROSOFT_WPA,
						ies->data,
						ies->len);
2094 2095 2096 2097 2098 2099
		rcu_read_unlock();
		cfg80211_put_bss(ar->hw->wiphy, bss);
	}

	/* FIXME: base on RSN IE/WPA IE is a correct idea? */
	if (rsnie || wpaie) {
2100
		ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
2101
		arg->peer_flags |= ar->wmi.peer_flags->need_ptk_4_way;
2102 2103 2104
	}

	if (wpaie) {
2105
		ath10k_dbg(ar, ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
2106
		arg->peer_flags |= ar->wmi.peer_flags->need_gtk_2_way;
2107
	}
2108 2109

	if (sta->mfp &&
2110 2111
	    test_bit(ATH10K_FW_FEATURE_MFP_SUPPORT,
		     ar->running_fw->fw_file.fw_features)) {
2112
		arg->peer_flags |= ar->wmi.peer_flags->pmf;
2113 2114 2115 2116
	}
}

static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
M
Michal Kazior 已提交
2117
				      struct ieee80211_vif *vif,
2118 2119 2120
				      struct ieee80211_sta *sta,
				      struct wmi_peer_assoc_complete_arg *arg)
{
2121
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2122
	struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
M
Michal Kazior 已提交
2123
	struct cfg80211_chan_def def;
2124 2125
	const struct ieee80211_supported_band *sband;
	const struct ieee80211_rate *rates;
2126
	enum nl80211_band band;
2127
	u32 ratemask;
M
Michal Kazior 已提交
2128
	u8 rate;
2129 2130
	int i;

M
Michal Kazior 已提交
2131 2132
	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
2133 2134 2135
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2136 2137 2138 2139
	band = def.chan->band;
	sband = ar->hw->wiphy->bands[band];
	ratemask = sta->supp_rates[band];
	ratemask &= arvif->bitrate_mask.control[band].legacy;
2140 2141 2142 2143 2144 2145 2146 2147
	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
2148 2149
		rate = ath10k_mac_bitrate_to_rate(rates->bitrate);
		rateset->rates[rateset->num_rates] = rate;
2150 2151 2152 2153
		rateset->num_rates++;
	}
}

2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177
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;
}

2178
static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
2179
				   struct ieee80211_vif *vif,
2180 2181 2182 2183
				   struct ieee80211_sta *sta,
				   struct wmi_peer_assoc_complete_arg *arg)
{
	const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
2184 2185
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	struct cfg80211_chan_def def;
2186
	enum nl80211_band band;
2187 2188
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
2189 2190
	int i, n;
	u8 max_nss;
2191
	u32 stbc;
2192

M
Michal Kazior 已提交
2193 2194
	lockdep_assert_held(&ar->conf_mutex);

2195 2196 2197
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2198 2199 2200
	if (!ht_cap->ht_supported)
		return;

2201 2202 2203 2204 2205 2206 2207 2208
	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;

2209
	arg->peer_flags |= ar->wmi.peer_flags->ht;
2210 2211 2212 2213 2214 2215 2216 2217 2218 2219
	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)
2220
		arg->peer_flags |= ar->wmi.peer_flags->ldbc;
2221 2222

	if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
2223
		arg->peer_flags |= ar->wmi.peer_flags->bw40;
2224 2225 2226
		arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
	}

2227 2228 2229
	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;
2230

2231 2232 2233
		if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
			arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
	}
2234 2235 2236

	if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
		arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
2237
		arg->peer_flags |= ar->wmi.peer_flags->stbc;
2238 2239 2240 2241 2242 2243 2244
	}

	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;
2245
		arg->peer_flags |= ar->wmi.peer_flags->stbc;
2246 2247 2248 2249 2250 2251 2252
	}

	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;

2253 2254 2255 2256
	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;
2257
			arg->peer_ht_rates.rates[n++] = i;
2258
		}
2259

2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274
	/*
	 * 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;
2275
		arg->peer_num_spatial_streams = min(sta->rx_nss, max_nss);
2276
	}
2277

2278
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
K
Kalle Valo 已提交
2279
		   arg->addr,
2280 2281 2282 2283
		   arg->peer_ht_rates.num_rates,
		   arg->peer_num_spatial_streams);
}

2284 2285 2286
static int ath10k_peer_assoc_qos_ap(struct ath10k *ar,
				    struct ath10k_vif *arvif,
				    struct ieee80211_sta *sta)
2287 2288 2289
{
	u32 uapsd = 0;
	u32 max_sp = 0;
2290
	int ret = 0;
2291

M
Michal Kazior 已提交
2292 2293
	lockdep_assert_held(&ar->conf_mutex);

2294
	if (sta->wme && sta->uapsd_queues) {
2295
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313
			   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;

2314 2315 2316 2317 2318
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
						 sta->addr,
						 WMI_AP_PS_PEER_PARAM_UAPSD,
						 uapsd);
		if (ret) {
2319
			ath10k_warn(ar, "failed to set ap ps peer param uapsd for vdev %i: %d\n",
2320
				    arvif->vdev_id, ret);
2321 2322
			return ret;
		}
2323

2324 2325 2326 2327 2328
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
						 sta->addr,
						 WMI_AP_PS_PEER_PARAM_MAX_SP,
						 max_sp);
		if (ret) {
2329
			ath10k_warn(ar, "failed to set ap ps peer param max sp for vdev %i: %d\n",
2330
				    arvif->vdev_id, ret);
2331 2332
			return ret;
		}
2333 2334 2335 2336 2337

		/* 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 */
2338
		ret = ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id, sta->addr,
2339 2340
						 WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
						 10);
2341
		if (ret) {
2342
			ath10k_warn(ar, "failed to set ap ps peer param ageout time for vdev %i: %d\n",
2343
				    arvif->vdev_id, ret);
2344 2345
			return ret;
		}
2346 2347
	}

2348
	return 0;
2349 2350
}

2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401
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;
}

2402
static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
M
Michal Kazior 已提交
2403
				    struct ieee80211_vif *vif,
2404 2405 2406 2407
				    struct ieee80211_sta *sta,
				    struct wmi_peer_assoc_complete_arg *arg)
{
	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
2408
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
M
Michal Kazior 已提交
2409
	struct cfg80211_chan_def def;
2410
	enum nl80211_band band;
2411
	const u16 *vht_mcs_mask;
2412
	u8 ampdu_factor;
2413

M
Michal Kazior 已提交
2414 2415 2416
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2417 2418 2419
	if (!vht_cap->vht_supported)
		return;

2420 2421 2422 2423 2424 2425
	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;

2426
	arg->peer_flags |= ar->wmi.peer_flags->vht;
2427

2428
	if (def.chan->band == NL80211_BAND_2GHZ)
2429
		arg->peer_flags |= ar->wmi.peer_flags->vht_2g;
2430

2431 2432
	arg->peer_vht_caps = vht_cap->cap;

2433 2434 2435 2436 2437 2438 2439 2440 2441 2442 2443 2444
	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);

2445
	if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
2446
		arg->peer_flags |= ar->wmi.peer_flags->bw80;
2447 2448 2449 2450 2451 2452 2453

	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);
2454 2455
	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);
2456

2457
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
K
Kalle Valo 已提交
2458
		   sta->addr, arg->peer_max_mpdu, arg->peer_flags);
2459 2460 2461
}

static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
M
Michal Kazior 已提交
2462
				    struct ieee80211_vif *vif,
2463 2464 2465
				    struct ieee80211_sta *sta,
				    struct wmi_peer_assoc_complete_arg *arg)
{
M
Michal Kazior 已提交
2466 2467
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);

2468 2469
	switch (arvif->vdev_type) {
	case WMI_VDEV_TYPE_AP:
2470
		if (sta->wme)
2471
			arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2472 2473

		if (sta->wme && sta->uapsd_queues) {
2474
			arg->peer_flags |= arvif->ar->wmi.peer_flags->apsd;
2475 2476
			arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
		}
2477 2478
		break;
	case WMI_VDEV_TYPE_STA:
M
Michal Kazior 已提交
2479
		if (vif->bss_conf.qos)
2480
			arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2481
		break;
2482 2483
	case WMI_VDEV_TYPE_IBSS:
		if (sta->wme)
2484
			arg->peer_flags |= arvif->ar->wmi.peer_flags->qos;
2485
		break;
2486 2487 2488
	default:
		break;
	}
2489 2490

	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM qos %d\n",
2491 2492
		   sta->addr, !!(arg->peer_flags &
		   arvif->ar->wmi.peer_flags->qos));
2493 2494
}

2495
static bool ath10k_mac_sta_has_ofdm_only(struct ieee80211_sta *sta)
M
Michal Kazior 已提交
2496
{
2497
	return sta->supp_rates[NL80211_BAND_2GHZ] >>
2498
	       ATH10K_MAC_FIRST_OFDM_RATE_IDX;
M
Michal Kazior 已提交
2499 2500
}

2501
static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
M
Michal Kazior 已提交
2502
					struct ieee80211_vif *vif,
2503 2504 2505
					struct ieee80211_sta *sta,
					struct wmi_peer_assoc_complete_arg *arg)
{
2506
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
M
Michal Kazior 已提交
2507
	struct cfg80211_chan_def def;
2508
	enum nl80211_band band;
2509 2510
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
2511 2512
	enum wmi_phy_mode phymode = MODE_UNKNOWN;

M
Michal Kazior 已提交
2513 2514 2515
	if (WARN_ON(ath10k_mac_vif_chan(vif, &def)))
		return;

2516 2517 2518 2519 2520
	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) {
2521
	case NL80211_BAND_2GHZ:
2522 2523
		if (sta->vht_cap.vht_supported &&
		    !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2524 2525 2526 2527
			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11AC_VHT40;
			else
				phymode = MODE_11AC_VHT20;
2528 2529
		} else if (sta->ht_cap.ht_supported &&
			   !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
2530 2531 2532 2533
			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
				phymode = MODE_11NG_HT40;
			else
				phymode = MODE_11NG_HT20;
2534
		} else if (ath10k_mac_sta_has_ofdm_only(sta)) {
2535
			phymode = MODE_11G;
M
Michal Kazior 已提交
2536 2537
		} else {
			phymode = MODE_11B;
2538 2539 2540
		}

		break;
2541
	case NL80211_BAND_5GHZ:
2542 2543 2544
		/*
		 * Check VHT first.
		 */
2545 2546
		if (sta->vht_cap.vht_supported &&
		    !ath10k_peer_assoc_h_vht_masked(vht_mcs_mask)) {
2547 2548 2549 2550 2551 2552
			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;
2553 2554 2555
		} else if (sta->ht_cap.ht_supported &&
			   !ath10k_peer_assoc_h_ht_masked(ht_mcs_mask)) {
			if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567
				phymode = MODE_11NA_HT40;
			else
				phymode = MODE_11NA_HT20;
		} else {
			phymode = MODE_11A;
		}

		break;
	default:
		break;
	}

2568
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
K
Kalle Valo 已提交
2569
		   sta->addr, ath10k_wmi_phymode_str(phymode));
K
Kalle Valo 已提交
2570

2571 2572 2573 2574
	arg->peer_phymode = phymode;
	WARN_ON(phymode == MODE_UNKNOWN);
}

2575
static int ath10k_peer_assoc_prepare(struct ath10k *ar,
M
Michal Kazior 已提交
2576
				     struct ieee80211_vif *vif,
2577 2578
				     struct ieee80211_sta *sta,
				     struct wmi_peer_assoc_complete_arg *arg)
2579
{
M
Michal Kazior 已提交
2580 2581
	lockdep_assert_held(&ar->conf_mutex);

2582
	memset(arg, 0, sizeof(*arg));
2583

M
Michal Kazior 已提交
2584
	ath10k_peer_assoc_h_basic(ar, vif, sta, arg);
2585
	ath10k_peer_assoc_h_crypto(ar, vif, sta, arg);
M
Michal Kazior 已提交
2586
	ath10k_peer_assoc_h_rates(ar, vif, sta, arg);
2587
	ath10k_peer_assoc_h_ht(ar, vif, sta, arg);
M
Michal Kazior 已提交
2588
	ath10k_peer_assoc_h_vht(ar, vif, sta, arg);
M
Michal Kazior 已提交
2589 2590
	ath10k_peer_assoc_h_qos(ar, vif, sta, arg);
	ath10k_peer_assoc_h_phymode(ar, vif, sta, arg);
2591

2592
	return 0;
2593 2594
}

M
Michal Kazior 已提交
2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621
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]);
}

M
Michal Kazior 已提交
2622 2623 2624 2625 2626 2627 2628 2629 2630
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;

2631 2632 2633
	if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_AFTER_ASSOC)
		return 0;

M
Michal Kazior 已提交
2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686
	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;
}

2687 2688 2689 2690 2691 2692 2693
/* 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
2694
	struct ieee80211_sta_ht_cap ht_cap;
M
Michal Kazior 已提交
2695
	struct ieee80211_sta_vht_cap vht_cap;
2696
	struct wmi_peer_assoc_complete_arg peer_arg;
2697 2698 2699
	struct ieee80211_sta *ap_sta;
	int ret;

M
Michal Kazior 已提交
2700 2701
	lockdep_assert_held(&ar->conf_mutex);

2702 2703 2704
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i assoc bssid %pM aid %d\n",
		   arvif->vdev_id, arvif->bssid, arvif->aid);

2705 2706 2707 2708
	rcu_read_lock();

	ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
	if (!ap_sta) {
2709
		ath10k_warn(ar, "failed to find station entry for bss %pM vdev %i\n",
2710
			    bss_conf->bssid, arvif->vdev_id);
2711 2712 2713 2714
		rcu_read_unlock();
		return;
	}

M
Michal Kazior 已提交
2715 2716 2717
	/* 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
2718
	vht_cap = ap_sta->vht_cap;
M
Michal Kazior 已提交
2719

M
Michal Kazior 已提交
2720
	ret = ath10k_peer_assoc_prepare(ar, vif, ap_sta, &peer_arg);
2721
	if (ret) {
2722
		ath10k_warn(ar, "failed to prepare peer assoc for %pM vdev %i: %d\n",
2723
			    bss_conf->bssid, arvif->vdev_id, ret);
2724 2725 2726 2727 2728 2729
		rcu_read_unlock();
		return;
	}

	rcu_read_unlock();

2730 2731
	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
	if (ret) {
2732
		ath10k_warn(ar, "failed to run peer assoc for %pM vdev %i: %d\n",
2733
			    bss_conf->bssid, arvif->vdev_id, ret);
2734 2735 2736
		return;
	}

M
Michal Kazior 已提交
2737 2738
	ret = ath10k_setup_peer_smps(ar, arvif, bss_conf->bssid, &ht_cap);
	if (ret) {
2739
		ath10k_warn(ar, "failed to setup peer SMPS for vdev %i: %d\n",
2740
			    arvif->vdev_id, ret);
M
Michal Kazior 已提交
2741 2742 2743
		return;
	}

M
Michal Kazior 已提交
2744 2745 2746 2747 2748 2749 2750
	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;
	}

2751
	ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
2752 2753 2754
		   "mac vdev %d up (associated) bssid %pM aid %d\n",
		   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);

2755 2756
	WARN_ON(arvif->is_up);

2757
	arvif->aid = bss_conf->aid;
K
Kalle Valo 已提交
2758
	ether_addr_copy(arvif->bssid, bss_conf->bssid);
2759 2760 2761

	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, arvif->aid, arvif->bssid);
	if (ret) {
2762
		ath10k_warn(ar, "failed to set vdev %d up: %d\n",
2763
			    arvif->vdev_id, ret);
2764 2765 2766 2767
		return;
	}

	arvif->is_up = true;
2768 2769 2770 2771 2772 2773 2774 2775 2776 2777 2778 2779

	/* 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;
	}
2780 2781 2782 2783 2784 2785 2786
}

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
2787
	struct ieee80211_sta_vht_cap vht_cap = {};
2788 2789
	int ret;

M
Michal Kazior 已提交
2790 2791
	lockdep_assert_held(&ar->conf_mutex);

2792 2793
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i disassoc bssid %pM\n",
		   arvif->vdev_id, arvif->bssid);
K
Kalle Valo 已提交
2794

2795
	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
2796
	if (ret)
B
Ben Greear 已提交
2797
		ath10k_warn(ar, "failed to down vdev %i: %d\n",
2798
			    arvif->vdev_id, ret);
2799

2800 2801
	arvif->def_wep_key_idx = -1;

M
Michal Kazior 已提交
2802 2803 2804 2805 2806 2807 2808
	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;
	}

2809
	arvif->is_up = false;
2810 2811

	cancel_delayed_work_sync(&arvif->connection_loss_work);
2812 2813
}

M
Michal Kazior 已提交
2814 2815 2816 2817
static int ath10k_station_assoc(struct ath10k *ar,
				struct ieee80211_vif *vif,
				struct ieee80211_sta *sta,
				bool reassoc)
2818
{
M
Michal Kazior 已提交
2819
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2820
	struct wmi_peer_assoc_complete_arg peer_arg;
2821 2822
	int ret = 0;

M
Michal Kazior 已提交
2823 2824
	lockdep_assert_held(&ar->conf_mutex);

M
Michal Kazior 已提交
2825
	ret = ath10k_peer_assoc_prepare(ar, vif, sta, &peer_arg);
2826
	if (ret) {
2827
		ath10k_warn(ar, "failed to prepare WMI peer assoc for %pM vdev %i: %i\n",
2828
			    sta->addr, arvif->vdev_id, ret);
2829 2830 2831 2832
		return ret;
	}

	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
2833
	if (ret) {
2834
		ath10k_warn(ar, "failed to run peer assoc for STA %pM vdev %i: %d\n",
2835
			    sta->addr, arvif->vdev_id, ret);
2836 2837 2838
		return ret;
	}

2839 2840 2841 2842 2843 2844
	/* 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);
2845
		if (ret) {
2846
			ath10k_warn(ar, "failed to setup peer SMPS for vdev %d: %d\n",
2847 2848 2849 2850
				    arvif->vdev_id, ret);
			return ret;
		}

2851 2852 2853 2854 2855 2856
		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;
		}
2857

2858 2859 2860 2861 2862 2863 2864 2865 2866 2867
		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;
			}
		}

2868 2869 2870 2871 2872 2873 2874 2875
		/* 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;
			}
2876
		}
2877 2878
	}

2879 2880 2881
	return ret;
}

M
Michal Kazior 已提交
2882 2883
static int ath10k_station_disassoc(struct ath10k *ar,
				   struct ieee80211_vif *vif,
2884 2885
				   struct ieee80211_sta *sta)
{
M
Michal Kazior 已提交
2886
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
2887 2888
	int ret = 0;

M
Michal Kazior 已提交
2889 2890
	lockdep_assert_held(&ar->conf_mutex);

2891 2892 2893 2894
	if (!sta->wme) {
		arvif->num_legacy_stations--;
		ret = ath10k_recalc_rtscts_prot(arvif);
		if (ret) {
2895
			ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
2896 2897 2898 2899 2900
				    arvif->vdev_id, ret);
			return ret;
		}
	}

2901 2902
	ret = ath10k_clear_peer_keys(arvif, sta->addr);
	if (ret) {
2903
		ath10k_warn(ar, "failed to clear all peer wep keys for vdev %i: %d\n",
2904
			    arvif->vdev_id, ret);
2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918
		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;
2919
	enum nl80211_band band;
2920 2921 2922 2923 2924 2925 2926 2927
	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
2928 2929
	lockdep_assert_held(&ar->conf_mutex);

2930
	bands = hw->wiphy->bands;
2931
	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949
		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;
2950
	for (band = 0; band < NUM_NL80211_BANDS; band++) {
2951 2952 2953 2954 2955 2956 2957 2958 2959
		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;

2960
			ch->allow_ht = true;
2961 2962 2963 2964 2965

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

			ch->allow_ibss =
2966
				!(channel->flags & IEEE80211_CHAN_NO_IR);
2967 2968 2969 2970

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

2971 2972 2973
			ch->chan_radar =
				!!(channel->flags & IEEE80211_CHAN_RADAR);

2974
			passive = channel->flags & IEEE80211_CHAN_NO_IR;
2975 2976 2977
			ch->passive = passive;

			ch->freq = channel->center_freq;
2978
			ch->band_center_freq1 = channel->center_freq;
2979
			ch->min_power = 0;
M
Michal Kazior 已提交
2980 2981 2982
			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;
2983 2984 2985 2986 2987
			ch->reg_class_id = 0; /* FIXME */

			/* FIXME: why use only legacy modes, why not any
			 * HT/VHT modes? Would that even make any
			 * difference? */
2988
			if (channel->band == NL80211_BAND_2GHZ)
2989 2990 2991 2992 2993 2994 2995
				ch->mode = MODE_11G;
			else
				ch->mode = MODE_11A;

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

2996
			ath10k_dbg(ar, ATH10K_DBG_WMI,
K
Kalle Valo 已提交
2997 2998
				   "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
				    ch - arg.channels, arg.n_channels,
2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011
				   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;
}

3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027
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;
}

3028
static void ath10k_regd_update(struct ath10k *ar)
3029 3030 3031
{
	struct reg_dmn_pair_mapping *regpair;
	int ret;
3032 3033
	enum wmi_dfs_region wmi_dfs_reg;
	enum nl80211_dfs_regions nl_dfs_reg;
3034

3035
	lockdep_assert_held(&ar->conf_mutex);
3036 3037 3038

	ret = ath10k_update_channel_list(ar);
	if (ret)
3039
		ath10k_warn(ar, "failed to update channel list: %d\n", ret);
3040 3041

	regpair = ar->ath_common.regulatory.regpair;
3042

3043
	if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
3044 3045 3046 3047 3048 3049
		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;
	}

3050 3051 3052
	/* Target allows setting up per-band regdomain but ath_common provides
	 * a combined one only */
	ret = ath10k_wmi_pdev_set_regdomain(ar,
3053 3054 3055
					    regpair->reg_domain,
					    regpair->reg_domain, /* 2ghz */
					    regpair->reg_domain, /* 5ghz */
3056
					    regpair->reg_2ghz_ctl,
3057 3058
					    regpair->reg_5ghz_ctl,
					    wmi_dfs_reg);
3059
	if (ret)
3060
		ath10k_warn(ar, "failed to set pdev regdomain: %d\n", ret);
3061
}
M
Michal Kazior 已提交
3062

3063 3064 3065 3066 3067
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
3068
	bool result;
3069 3070 3071

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

3072
	if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector) {
3073
		ath10k_dbg(ar, ATH10K_DBG_REGULATORY, "dfs region 0x%x\n",
J
Janusz Dziedzic 已提交
3074 3075 3076 3077
			   request->dfs_region);
		result = ar->dfs_detector->set_dfs_domain(ar->dfs_detector,
							  request->dfs_region);
		if (!result)
3078
			ath10k_warn(ar, "DFS region 0x%X not supported, will trigger radar for every pulse\n",
J
Janusz Dziedzic 已提交
3079 3080 3081
				    request->dfs_region);
	}

3082 3083 3084
	mutex_lock(&ar->conf_mutex);
	if (ar->state == ATH10K_STATE_ON)
		ath10k_regd_update(ar);
M
Michal Kazior 已提交
3085
	mutex_unlock(&ar->conf_mutex);
3086 3087 3088 3089 3090 3091
}

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

M
Michal Kazior 已提交
3092 3093 3094 3095 3096 3097 3098
enum ath10k_mac_tx_path {
	ATH10K_MAC_TX_HTT,
	ATH10K_MAC_TX_HTT_MGMT,
	ATH10K_MAC_TX_WMI_MGMT,
	ATH10K_MAC_TX_UNKNOWN,
};

M
Michal Kazior 已提交
3099
void ath10k_mac_tx_lock(struct ath10k *ar, int reason)
3100
{
M
Michal Kazior 已提交
3101
	lockdep_assert_held(&ar->htt.tx_lock);
3102

M
Michal Kazior 已提交
3103 3104 3105
	WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
	ar->tx_paused |= BIT(reason);
	ieee80211_stop_queues(ar->hw);
3106 3107
}

M
Michal Kazior 已提交
3108 3109
static void ath10k_mac_tx_unlock_iter(void *data, u8 *mac,
				      struct ieee80211_vif *vif)
3110
{
M
Michal Kazior 已提交
3111 3112
	struct ath10k *ar = data;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
3113

M
Michal Kazior 已提交
3114 3115
	if (arvif->tx_paused)
		return;
3116

M
Michal Kazior 已提交
3117
	ieee80211_wake_queue(ar->hw, arvif->vdev_id);
3118 3119
}

M
Michal Kazior 已提交
3120
void ath10k_mac_tx_unlock(struct ath10k *ar, int reason)
3121
{
M
Michal Kazior 已提交
3122
	lockdep_assert_held(&ar->htt.tx_lock);
3123

M
Michal Kazior 已提交
3124 3125
	WARN_ON(reason >= ATH10K_TX_PAUSE_MAX);
	ar->tx_paused &= ~BIT(reason);
3126

M
Michal Kazior 已提交
3127 3128
	if (ar->tx_paused)
		return;
3129

M
Michal Kazior 已提交
3130 3131 3132 3133
	ieee80211_iterate_active_interfaces_atomic(ar->hw,
						   IEEE80211_IFACE_ITER_RESUME_ALL,
						   ath10k_mac_tx_unlock_iter,
						   ar);
3134 3135

	ieee80211_wake_queue(ar->hw, ar->hw->offchannel_tx_hw_queue);
3136 3137
}

M
Michal Kazior 已提交
3138
void ath10k_mac_vif_tx_lock(struct ath10k_vif *arvif, int reason)
3139
{
M
Michal Kazior 已提交
3140
	struct ath10k *ar = arvif->ar;
3141

M
Michal Kazior 已提交
3142
	lockdep_assert_held(&ar->htt.tx_lock);
3143

M
Michal Kazior 已提交
3144 3145 3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166
	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);
}

3167 3168 3169 3170 3171 3172 3173 3174
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);

3175 3176 3177 3178 3179 3180
	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);
3181 3182
		break;
	default:
3183 3184
		ath10k_dbg(ar, ATH10K_DBG_BOOT,
			   "received unknown tx pause action %d on vdev %i, ignoring\n",
3185
			    action, arvif->vdev_id);
3186 3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201
		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;

3202 3203 3204
	if (arvif->vdev_id != arg->vdev_id)
		return;

3205 3206 3207
	ath10k_mac_vif_handle_tx_pause(arvif, arg->pause_id, arg->action);
}

3208 3209 3210
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)
3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225
{
	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);
}

3226
static enum ath10k_hw_txrx_mode
3227 3228 3229 3230
ath10k_mac_tx_h_get_txmode(struct ath10k *ar,
			   struct ieee80211_vif *vif,
			   struct ieee80211_sta *sta,
			   struct sk_buff *skb)
3231 3232 3233 3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258
{
	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)) &&
3259
	    !test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3260 3261
		      ar->running_fw->fw_file.fw_features) &&
	    !test_bit(ATH10K_FW_FEATURE_SKIP_NULL_FUNC_WAR,
3262
		      ar->running_fw->fw_file.fw_features))
3263 3264
		return ATH10K_HW_TXRX_MGMT;

3265 3266 3267 3268 3269
	/* 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.
3270 3271
	 *
	 * FIXME: Check if raw mode works with TDLS.
3272 3273 3274 3275
	 */
	if (ieee80211_is_data_present(fc) && sta && sta->tdls)
		return ATH10K_HW_TXRX_ETHERNET;

3276 3277 3278
	if (test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
		return ATH10K_HW_TXRX_RAW;

3279 3280 3281
	return ATH10K_HW_TXRX_NATIVE_WIFI;
}

3282
static bool ath10k_tx_h_use_hwcrypto(struct ieee80211_vif *vif,
3283 3284 3285 3286
				     struct sk_buff *skb)
{
	const struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
	const struct ieee80211_hdr *hdr = (void *)skb->data;
3287 3288
	const u32 mask = IEEE80211_TX_INTFL_DONT_ENCRYPT |
			 IEEE80211_TX_CTL_INJECTED;
3289 3290 3291 3292

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

3293 3294
	if ((info->flags & mask) == mask)
		return false;
3295

3296 3297
	if (vif)
		return !ath10k_vif_to_arvif(vif)->nohwcrypt;
3298

3299 3300 3301
	return true;
}

M
Michal Kazior 已提交
3302 3303
/* HTT Tx uses Native Wifi tx mode which expects 802.11 frames without QoS
 * Control in the header.
3304
 */
M
Michal Kazior 已提交
3305
static void ath10k_tx_h_nwifi(struct ieee80211_hw *hw, struct sk_buff *skb)
3306 3307
{
	struct ieee80211_hdr *hdr = (void *)skb->data;
3308
	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
3309 3310 3311 3312 3313 3314
	u8 *qos_ctl;

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

	qos_ctl = ieee80211_get_qos_ctl(hdr);
3315 3316 3317
	memmove(skb->data + IEEE80211_QOS_CTL_LEN,
		skb->data, (void *)qos_ctl - (void *)skb->data);
	skb_pull(skb, IEEE80211_QOS_CTL_LEN);
3318

3319 3320 3321
	/* 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.
3322
	 */
M
Michal Kazior 已提交
3323
	hdr = (void *)skb->data;
3324
	if (ieee80211_is_qos_nullfunc(hdr->frame_control))
3325
		cb->flags &= ~ATH10K_SKB_F_QOS;
3326 3327

	hdr->frame_control &= ~__cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
3328 3329
}

3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354
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;
3355 3356
}

M
Michal Kazior 已提交
3357 3358 3359
static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar,
				       struct ieee80211_vif *vif,
				       struct sk_buff *skb)
3360 3361 3362 3363 3364
{
	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 */
3365
	if (vif->type != NL80211_IFTYPE_AP || !vif->p2p)
3366 3367 3368 3369 3370 3371 3372 3373 3374 3375 3376 3377 3378 3379
		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
3380 3381
static void ath10k_mac_tx_h_fill_cb(struct ath10k *ar,
				    struct ieee80211_vif *vif,
M
Michal Kazior 已提交
3382
				    struct ieee80211_txq *txq,
M
Michal Kazior 已提交
3383 3384 3385 3386 3387 3388 3389 3390 3391 3392 3393 3394 3395 3396 3397 3398
				    struct sk_buff *skb)
{
	struct ieee80211_hdr *hdr = (void *)skb->data;
	struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);

	cb->flags = 0;
	if (!ath10k_tx_h_use_hwcrypto(vif, skb))
		cb->flags |= ATH10K_SKB_F_NO_HWCRYPT;

	if (ieee80211_is_mgmt(hdr->frame_control))
		cb->flags |= ATH10K_SKB_F_MGMT;

	if (ieee80211_is_data_qos(hdr->frame_control))
		cb->flags |= ATH10K_SKB_F_QOS;

	cb->vif = vif;
M
Michal Kazior 已提交
3399
	cb->txq = txq;
M
Michal Kazior 已提交
3400 3401
}

3402
bool ath10k_mac_tx_frm_has_freq(struct ath10k *ar)
M
Michal Kazior 已提交
3403 3404 3405 3406 3407 3408 3409
{
	/* 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.
	 */
3410
	return (ar->htt.target_version_major >= 3 &&
3411
		ar->htt.target_version_minor >= 4 &&
3412
		ar->running_fw->fw_file.htt_op_version == ATH10K_FW_HTT_OP_VERSION_TLV);
M
Michal Kazior 已提交
3413 3414
}

3415
static int ath10k_mac_tx_wmi_mgmt(struct ath10k *ar, struct sk_buff *skb)
3416
{
3417
	struct sk_buff_head *q = &ar->wmi_mgmt_tx_queue;
3418
	int ret = 0;
3419

3420 3421 3422 3423 3424 3425
	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
3426 3427
	}

3428 3429
	__skb_queue_tail(q, skb);
	ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
3430

3431 3432 3433 3434 3435 3436
unlock:
	spin_unlock_bh(&ar->data_lock);

	return ret;
}

M
Michal Kazior 已提交
3437 3438 3439 3440
static enum ath10k_mac_tx_path
ath10k_mac_tx_h_get_txpath(struct ath10k *ar,
			   struct sk_buff *skb,
			   enum ath10k_hw_txrx_mode txmode)
3441
{
M
Michal Kazior 已提交
3442
	switch (txmode) {
3443 3444 3445
	case ATH10K_HW_TXRX_RAW:
	case ATH10K_HW_TXRX_NATIVE_WIFI:
	case ATH10K_HW_TXRX_ETHERNET:
M
Michal Kazior 已提交
3446
		return ATH10K_MAC_TX_HTT;
3447 3448
	case ATH10K_HW_TXRX_MGMT:
		if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
3449
			     ar->running_fw->fw_file.fw_features))
M
Michal Kazior 已提交
3450
			return ATH10K_MAC_TX_WMI_MGMT;
3451
		else if (ar->htt.target_version_major >= 3)
M
Michal Kazior 已提交
3452
			return ATH10K_MAC_TX_HTT;
3453
		else
M
Michal Kazior 已提交
3454 3455 3456 3457 3458 3459 3460 3461
			return ATH10K_MAC_TX_HTT_MGMT;
	}

	return ATH10K_MAC_TX_UNKNOWN;
}

static int ath10k_mac_tx_submit(struct ath10k *ar,
				enum ath10k_hw_txrx_mode txmode,
3462
				enum ath10k_mac_tx_path txpath,
M
Michal Kazior 已提交
3463 3464 3465
				struct sk_buff *skb)
{
	struct ath10k_htt *htt = &ar->htt;
3466
	int ret = -EINVAL;
M
Michal Kazior 已提交
3467 3468 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480

	switch (txpath) {
	case ATH10K_MAC_TX_HTT:
		ret = ath10k_htt_tx(htt, txmode, skb);
		break;
	case ATH10K_MAC_TX_HTT_MGMT:
		ret = ath10k_htt_mgmt_tx(htt, skb);
		break;
	case ATH10K_MAC_TX_WMI_MGMT:
		ret = ath10k_mac_tx_wmi_mgmt(ar, skb);
		break;
	case ATH10K_MAC_TX_UNKNOWN:
		WARN_ON_ONCE(1);
		ret = -EINVAL;
3481
		break;
3482
	}
3483 3484

	if (ret) {
3485 3486
		ath10k_warn(ar, "failed to transmit packet, dropping: %d\n",
			    ret);
3487 3488
		ieee80211_free_txskb(ar->hw, skb);
	}
M
Michal Kazior 已提交
3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499

	return ret;
}

/* This function consumes the sk_buff regardless of return value as far as
 * caller is concerned so no freeing is necessary afterwards.
 */
static int ath10k_mac_tx(struct ath10k *ar,
			 struct ieee80211_vif *vif,
			 struct ieee80211_sta *sta,
			 enum ath10k_hw_txrx_mode txmode,
3500
			 enum ath10k_mac_tx_path txpath,
M
Michal Kazior 已提交
3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530
			 struct sk_buff *skb)
{
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
	int ret;

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

	switch (txmode) {
	case ATH10K_HW_TXRX_MGMT:
	case ATH10K_HW_TXRX_NATIVE_WIFI:
		ath10k_tx_h_nwifi(hw, skb);
		ath10k_tx_h_add_p2p_noa_ie(ar, vif, skb);
		ath10k_tx_h_seq_no(vif, skb);
		break;
	case ATH10K_HW_TXRX_ETHERNET:
		ath10k_tx_h_8023(skb);
		break;
	case ATH10K_HW_TXRX_RAW:
		if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
			WARN_ON_ONCE(1);
			ieee80211_free_txskb(hw, skb);
			return -ENOTSUPP;
		}
	}

	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
		if (!ath10k_mac_tx_frm_has_freq(ar)) {
3531
			ath10k_dbg(ar, ATH10K_DBG_MAC, "queued offchannel skb %pK\n",
M
Michal Kazior 已提交
3532 3533 3534 3535 3536 3537 3538 3539
				   skb);

			skb_queue_tail(&ar->offchan_tx_queue, skb);
			ieee80211_queue_work(hw, &ar->offchan_tx_work);
			return 0;
		}
	}

3540
	ret = ath10k_mac_tx_submit(ar, txmode, txpath, skb);
M
Michal Kazior 已提交
3541 3542 3543 3544 3545 3546
	if (ret) {
		ath10k_warn(ar, "failed to submit frame: %d\n", ret);
		return ret;
	}

	return 0;
3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565
}

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;
M
Michal Kazior 已提交
3566
	struct ath10k_vif *arvif;
M
Michal Kazior 已提交
3567
	enum ath10k_hw_txrx_mode txmode;
3568
	enum ath10k_mac_tx_path txpath;
3569
	struct ieee80211_hdr *hdr;
M
Michal Kazior 已提交
3570 3571
	struct ieee80211_vif *vif;
	struct ieee80211_sta *sta;
3572 3573 3574 3575
	struct sk_buff *skb;
	const u8 *peer_addr;
	int vdev_id;
	int ret;
3576
	unsigned long time_left;
3577
	bool tmp_peer_created = false;
3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592

	/* 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);

3593
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac offchannel skb %pK\n",
3594 3595 3596 3597 3598 3599
			   skb);

		hdr = (struct ieee80211_hdr *)skb->data;
		peer_addr = ieee80211_get_DA(hdr);

		spin_lock_bh(&ar->data_lock);
3600
		vdev_id = ar->scan.vdev_id;
3601 3602 3603 3604
		peer = ath10k_peer_find(ar, vdev_id, peer_addr);
		spin_unlock_bh(&ar->data_lock);

		if (peer)
K
Kalle Valo 已提交
3605
			/* FIXME: should this use ath10k_warn()? */
3606
			ath10k_dbg(ar, ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
3607 3608 3609
				   peer_addr, vdev_id);

		if (!peer) {
M
Michal Kazior 已提交
3610 3611
			ret = ath10k_peer_create(ar, NULL, NULL, vdev_id,
						 peer_addr,
3612
						 WMI_PEER_TYPE_DEFAULT);
3613
			if (ret)
3614
				ath10k_warn(ar, "failed to create peer %pM on vdev %d: %d\n",
3615
					    peer_addr, vdev_id, ret);
3616
			tmp_peer_created = (ret == 0);
3617 3618 3619
		}

		spin_lock_bh(&ar->data_lock);
3620
		reinit_completion(&ar->offchan_tx_completed);
3621 3622 3623
		ar->offchan_tx_skb = skb;
		spin_unlock_bh(&ar->data_lock);

M
Michal Kazior 已提交
3624 3625 3626 3627 3628 3629 3630 3631 3632 3633 3634 3635 3636 3637
		/* It's safe to access vif and sta - conf_mutex guarantees that
		 * sta_state() and remove_interface() are locked exclusively
		 * out wrt to this offchannel worker.
		 */
		arvif = ath10k_get_arvif(ar, vdev_id);
		if (arvif) {
			vif = arvif->vif;
			sta = ieee80211_find_sta(vif, peer_addr);
		} else {
			vif = NULL;
			sta = NULL;
		}

		txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
3638
		txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
M
Michal Kazior 已提交
3639

3640
		ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
M
Michal Kazior 已提交
3641 3642 3643 3644 3645
		if (ret) {
			ath10k_warn(ar, "failed to transmit offchannel frame: %d\n",
				    ret);
			/* not serious */
		}
3646

3647 3648 3649
		time_left =
		wait_for_completion_timeout(&ar->offchan_tx_completed, 3 * HZ);
		if (time_left == 0)
3650
			ath10k_warn(ar, "timed out waiting for offchannel skb %pK\n",
3651 3652
				    skb);

3653
		if (!peer && tmp_peer_created) {
3654 3655
			ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
			if (ret)
3656
				ath10k_warn(ar, "failed to delete peer %pM on vdev %d: %d\n",
3657 3658 3659 3660 3661 3662 3663
					    peer_addr, vdev_id, ret);
		}

		mutex_unlock(&ar->conf_mutex);
	}
}

3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 3676 3677 3678 3679 3680 3681 3682 3683 3684 3685 3686 3687 3688
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);
3689
		if (ret) {
3690
			ath10k_warn(ar, "failed to transmit management frame via WMI: %d\n",
3691
				    ret);
3692 3693
			ieee80211_free_txskb(ar->hw, skb);
		}
3694 3695 3696
	}
}

M
Michal Kazior 已提交
3697 3698
static void ath10k_mac_txq_init(struct ieee80211_txq *txq)
{
3699
	struct ath10k_txq *artxq;
M
Michal Kazior 已提交
3700 3701 3702 3703

	if (!txq)
		return;

3704
	artxq = (void *)txq->drv_priv;
M
Michal Kazior 已提交
3705 3706 3707 3708 3709
	INIT_LIST_HEAD(&artxq->list);
}

static void ath10k_mac_txq_unref(struct ath10k *ar, struct ieee80211_txq *txq)
{
3710
	struct ath10k_txq *artxq;
M
Michal Kazior 已提交
3711 3712 3713
	struct ath10k_skb_cb *cb;
	struct sk_buff *msdu;
	int msdu_id;
M
Michal Kazior 已提交
3714 3715 3716 3717

	if (!txq)
		return;

3718
	artxq = (void *)txq->drv_priv;
M
Michal Kazior 已提交
3719 3720 3721 3722
	spin_lock_bh(&ar->txqs_lock);
	if (!list_empty(&artxq->list))
		list_del_init(&artxq->list);
	spin_unlock_bh(&ar->txqs_lock);
M
Michal Kazior 已提交
3723 3724 3725 3726 3727 3728 3729 3730

	spin_lock_bh(&ar->htt.tx_lock);
	idr_for_each_entry(&ar->htt.pending_tx, msdu, msdu_id) {
		cb = ATH10K_SKB_CB(msdu);
		if (cb->txq == txq)
			cb->txq = NULL;
	}
	spin_unlock_bh(&ar->htt.tx_lock);
M
Michal Kazior 已提交
3731 3732
}

M
Michal Kazior 已提交
3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752
struct ieee80211_txq *ath10k_mac_txq_lookup(struct ath10k *ar,
					    u16 peer_id,
					    u8 tid)
{
	struct ath10k_peer *peer;

	lockdep_assert_held(&ar->data_lock);

	peer = ar->peer_map[peer_id];
	if (!peer)
		return NULL;

	if (peer->sta)
		return peer->sta->txq[tid];
	else if (peer->vif)
		return peer->vif->txq;
	else
		return NULL;
}

M
Michal Kazior 已提交
3753 3754 3755
static bool ath10k_mac_tx_can_push(struct ieee80211_hw *hw,
				   struct ieee80211_txq *txq)
{
M
Michal Kazior 已提交
3756 3757 3758 3759 3760 3761 3762 3763 3764 3765 3766 3767 3768 3769 3770
	struct ath10k *ar = hw->priv;
	struct ath10k_txq *artxq = (void *)txq->drv_priv;

	/* No need to get locks */

	if (ar->htt.tx_q_state.mode == HTT_TX_MODE_SWITCH_PUSH)
		return true;

	if (ar->htt.num_pending_tx < ar->htt.tx_q_state.num_push_allowed)
		return true;

	if (artxq->num_fw_queued < artxq->num_push_allowed)
		return true;

	return false;
M
Michal Kazior 已提交
3771 3772
}

M
Michal Kazior 已提交
3773 3774
int ath10k_mac_tx_push_txq(struct ieee80211_hw *hw,
			   struct ieee80211_txq *txq)
M
Michal Kazior 已提交
3775 3776 3777
{
	struct ath10k *ar = hw->priv;
	struct ath10k_htt *htt = &ar->htt;
3778
	struct ath10k_txq *artxq = (void *)txq->drv_priv;
M
Michal Kazior 已提交
3779 3780 3781 3782 3783
	struct ieee80211_vif *vif = txq->vif;
	struct ieee80211_sta *sta = txq->sta;
	enum ath10k_hw_txrx_mode txmode;
	enum ath10k_mac_tx_path txpath;
	struct sk_buff *skb;
3784
	struct ieee80211_hdr *hdr;
M
Michal Kazior 已提交
3785
	size_t skb_len;
3786
	bool is_mgmt, is_presp;
M
Michal Kazior 已提交
3787 3788 3789
	int ret;

	spin_lock_bh(&ar->htt.tx_lock);
3790
	ret = ath10k_htt_tx_inc_pending(htt);
M
Michal Kazior 已提交
3791 3792 3793 3794 3795 3796 3797 3798
	spin_unlock_bh(&ar->htt.tx_lock);

	if (ret)
		return ret;

	skb = ieee80211_tx_dequeue(hw, txq);
	if (!skb) {
		spin_lock_bh(&ar->htt.tx_lock);
3799
		ath10k_htt_tx_dec_pending(htt);
M
Michal Kazior 已提交
3800 3801 3802 3803 3804
		spin_unlock_bh(&ar->htt.tx_lock);

		return -ENOENT;
	}

M
Michal Kazior 已提交
3805
	ath10k_mac_tx_h_fill_cb(ar, vif, txq, skb);
M
Michal Kazior 已提交
3806

M
Michal Kazior 已提交
3807
	skb_len = skb->len;
M
Michal Kazior 已提交
3808 3809
	txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
	txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825
	is_mgmt = (txpath == ATH10K_MAC_TX_HTT_MGMT);

	if (is_mgmt) {
		hdr = (struct ieee80211_hdr *)skb->data;
		is_presp = ieee80211_is_probe_resp(hdr->frame_control);

		spin_lock_bh(&ar->htt.tx_lock);
		ret = ath10k_htt_tx_mgmt_inc_pending(htt, is_mgmt, is_presp);

		if (ret) {
			ath10k_htt_tx_dec_pending(htt);
			spin_unlock_bh(&ar->htt.tx_lock);
			return ret;
		}
		spin_unlock_bh(&ar->htt.tx_lock);
	}
M
Michal Kazior 已提交
3826 3827 3828 3829 3830 3831

	ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
	if (unlikely(ret)) {
		ath10k_warn(ar, "failed to push frame: %d\n", ret);

		spin_lock_bh(&ar->htt.tx_lock);
3832
		ath10k_htt_tx_dec_pending(htt);
3833 3834
		if (is_mgmt)
			ath10k_htt_tx_mgmt_dec_pending(htt);
M
Michal Kazior 已提交
3835 3836 3837 3838 3839
		spin_unlock_bh(&ar->htt.tx_lock);

		return ret;
	}

3840 3841 3842 3843
	spin_lock_bh(&ar->htt.tx_lock);
	artxq->num_fw_queued++;
	spin_unlock_bh(&ar->htt.tx_lock);

M
Michal Kazior 已提交
3844
	return skb_len;
M
Michal Kazior 已提交
3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 3855
}

void ath10k_mac_tx_push_pending(struct ath10k *ar)
{
	struct ieee80211_hw *hw = ar->hw;
	struct ieee80211_txq *txq;
	struct ath10k_txq *artxq;
	struct ath10k_txq *last;
	int ret;
	int max;

M
Michal Kazior 已提交
3856 3857 3858
	if (ar->htt.num_pending_tx >= (ar->htt.max_num_pending_tx / 2))
		return;

M
Michal Kazior 已提交
3859 3860 3861 3862 3863 3864 3865 3866 3867 3868 3869
	spin_lock_bh(&ar->txqs_lock);
	rcu_read_lock();

	last = list_last_entry(&ar->txqs, struct ath10k_txq, list);
	while (!list_empty(&ar->txqs)) {
		artxq = list_first_entry(&ar->txqs, struct ath10k_txq, list);
		txq = container_of((void *)artxq, struct ieee80211_txq,
				   drv_priv);

		/* Prevent aggressive sta/tid taking over tx queue */
		max = 16;
3870 3871
		ret = 0;
		while (ath10k_mac_tx_can_push(hw, txq) && max--) {
M
Michal Kazior 已提交
3872 3873 3874 3875 3876 3877
			ret = ath10k_mac_tx_push_txq(hw, txq);
			if (ret < 0)
				break;
		}

		list_del_init(&artxq->list);
M
Michal Kazior 已提交
3878 3879 3880
		if (ret != -ENOENT)
			list_add_tail(&artxq->list, &ar->txqs);

3881
		ath10k_htt_tx_txq_update(hw, txq);
M
Michal Kazior 已提交
3882

M
Michal Kazior 已提交
3883
		if (artxq == last || (ret < 0 && ret != -ENOENT))
M
Michal Kazior 已提交
3884 3885 3886 3887 3888 3889 3890
			break;
	}

	rcu_read_unlock();
	spin_unlock_bh(&ar->txqs_lock);
}

3891 3892 3893 3894
/************/
/* Scanning */
/************/

3895
void __ath10k_scan_finish(struct ath10k *ar)
3896
{
3897
	lockdep_assert_held(&ar->data_lock);
3898

3899 3900 3901 3902
	switch (ar->scan.state) {
	case ATH10K_SCAN_IDLE:
		break;
	case ATH10K_SCAN_RUNNING:
3903
	case ATH10K_SCAN_ABORTING:
3904 3905 3906 3907 3908 3909 3910 3911
		if (!ar->scan.is_roc) {
			struct cfg80211_scan_info info = {
				.aborted = (ar->scan.state ==
					    ATH10K_SCAN_ABORTING),
			};

			ieee80211_scan_completed(ar->hw, &info);
		} else if (ar->scan.roc_notify) {
3912
			ieee80211_remain_on_channel_expired(ar->hw);
3913
		}
3914 3915 3916 3917
		/* fall through */
	case ATH10K_SCAN_STARTING:
		ar->scan.state = ATH10K_SCAN_IDLE;
		ar->scan_channel = NULL;
M
Michal Kazior 已提交
3918
		ar->scan.roc_freq = 0;
3919 3920
		ath10k_offchan_tx_purge(ar);
		cancel_delayed_work(&ar->scan.timeout);
3921
		complete(&ar->scan.completed);
3922
		break;
3923
	}
3924
}
3925

3926 3927 3928 3929
void ath10k_scan_finish(struct ath10k *ar)
{
	spin_lock_bh(&ar->data_lock);
	__ath10k_scan_finish(ar);
3930 3931 3932
	spin_unlock_bh(&ar->data_lock);
}

3933
static int ath10k_scan_stop(struct ath10k *ar)
3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945
{
	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) {
3946
		ath10k_warn(ar, "failed to stop wmi scan: %d\n", ret);
3947
		goto out;
3948 3949
	}

3950
	ret = wait_for_completion_timeout(&ar->scan.completed, 3 * HZ);
3951
	if (ret == 0) {
3952
		ath10k_warn(ar, "failed to receive scan abortion completion: timed out\n");
3953 3954 3955 3956
		ret = -ETIMEDOUT;
	} else if (ret > 0) {
		ret = 0;
	}
3957

3958 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978
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);
3979 3980

	spin_lock_bh(&ar->data_lock);
3981 3982 3983 3984 3985 3986 3987 3988 3989

	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:
3990
		ath10k_warn(ar, "refusing scan abortion due to invalid scan state: %s (%d)\n",
3991 3992 3993 3994 3995 3996 3997 3998 3999
			    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)
4000
			ath10k_warn(ar, "failed to abort scan: %d\n", ret);
4001 4002 4003

		spin_lock_bh(&ar->data_lock);
		break;
4004
	}
4005

4006
	spin_unlock_bh(&ar->data_lock);
4007
}
4008

4009 4010 4011 4012 4013 4014 4015 4016
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);
4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029
}

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;

4030
	ret = wait_for_completion_timeout(&ar->scan.started, 1 * HZ);
4031
	if (ret == 0) {
4032 4033
		ret = ath10k_scan_stop(ar);
		if (ret)
4034
			ath10k_warn(ar, "failed to stop scan: %d\n", ret);
4035 4036

		return -ETIMEDOUT;
4037 4038
	}

4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049
	/* 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);

4050 4051 4052 4053 4054 4055 4056
	return 0;
}

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

M
Michal Kazior 已提交
4057 4058 4059
static void ath10k_mac_op_tx(struct ieee80211_hw *hw,
			     struct ieee80211_tx_control *control,
			     struct sk_buff *skb)
4060
{
M
Michal Kazior 已提交
4061
	struct ath10k *ar = hw->priv;
4062
	struct ath10k_htt *htt = &ar->htt;
4063
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
M
Michal Kazior 已提交
4064
	struct ieee80211_vif *vif = info->control.vif;
4065
	struct ieee80211_sta *sta = control->sta;
M
Michal Kazior 已提交
4066
	struct ieee80211_txq *txq = NULL;
4067
	struct ieee80211_hdr *hdr = (void *)skb->data;
M
Michal Kazior 已提交
4068
	enum ath10k_hw_txrx_mode txmode;
4069 4070 4071 4072
	enum ath10k_mac_tx_path txpath;
	bool is_htt;
	bool is_mgmt;
	bool is_presp;
M
Michal Kazior 已提交
4073
	int ret;
4074

M
Michal Kazior 已提交
4075
	ath10k_mac_tx_h_fill_cb(ar, vif, txq, skb);
4076

M
Michal Kazior 已提交
4077
	txmode = ath10k_mac_tx_h_get_txmode(ar, vif, sta, skb);
4078 4079 4080
	txpath = ath10k_mac_tx_h_get_txpath(ar, skb, txmode);
	is_htt = (txpath == ATH10K_MAC_TX_HTT ||
		  txpath == ATH10K_MAC_TX_HTT_MGMT);
4081
	is_mgmt = (txpath == ATH10K_MAC_TX_HTT_MGMT);
4082

4083 4084 4085 4086
	if (is_htt) {
		spin_lock_bh(&ar->htt.tx_lock);
		is_presp = ieee80211_is_probe_resp(hdr->frame_control);

4087
		ret = ath10k_htt_tx_inc_pending(htt);
4088 4089 4090 4091 4092 4093 4094 4095
		if (ret) {
			ath10k_warn(ar, "failed to increase tx pending count: %d, dropping\n",
				    ret);
			spin_unlock_bh(&ar->htt.tx_lock);
			ieee80211_free_txskb(ar->hw, skb);
			return;
		}

4096 4097
		ret = ath10k_htt_tx_mgmt_inc_pending(htt, is_mgmt, is_presp);
		if (ret) {
4098 4099
			ath10k_dbg(ar, ATH10K_DBG_MAC, "failed to increase tx mgmt pending count: %d, dropping\n",
				   ret);
4100 4101 4102 4103 4104
			ath10k_htt_tx_dec_pending(htt);
			spin_unlock_bh(&ar->htt.tx_lock);
			ieee80211_free_txskb(ar->hw, skb);
			return;
		}
4105 4106 4107 4108 4109
		spin_unlock_bh(&ar->htt.tx_lock);
	}

	ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
	if (ret) {
M
Michal Kazior 已提交
4110
		ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
4111 4112
		if (is_htt) {
			spin_lock_bh(&ar->htt.tx_lock);
4113 4114 4115
			ath10k_htt_tx_dec_pending(htt);
			if (is_mgmt)
				ath10k_htt_tx_mgmt_dec_pending(htt);
4116 4117 4118 4119
			spin_unlock_bh(&ar->htt.tx_lock);
		}
		return;
	}
4120 4121
}

M
Michal Kazior 已提交
4122 4123 4124 4125 4126
static void ath10k_mac_op_wake_tx_queue(struct ieee80211_hw *hw,
					struct ieee80211_txq *txq)
{
	struct ath10k *ar = hw->priv;
	struct ath10k_txq *artxq = (void *)txq->drv_priv;
4127 4128 4129 4130
	struct ieee80211_txq *f_txq;
	struct ath10k_txq *f_artxq;
	int ret = 0;
	int max = 16;
M
Michal Kazior 已提交
4131

4132 4133 4134
	spin_lock_bh(&ar->txqs_lock);
	if (list_empty(&artxq->list))
		list_add_tail(&artxq->list, &ar->txqs);
4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146

	f_artxq = list_first_entry(&ar->txqs, struct ath10k_txq, list);
	f_txq = container_of((void *)f_artxq, struct ieee80211_txq, drv_priv);
	list_del_init(&f_artxq->list);

	while (ath10k_mac_tx_can_push(hw, f_txq) && max--) {
		ret = ath10k_mac_tx_push_txq(hw, f_txq);
		if (ret)
			break;
	}
	if (ret != -ENOENT)
		list_add_tail(&f_artxq->list, &ar->txqs);
4147
	spin_unlock_bh(&ar->txqs_lock);
M
Michal Kazior 已提交
4148

4149
	ath10k_htt_tx_txq_update(hw, f_txq);
4150
	ath10k_htt_tx_txq_update(hw, txq);
M
Michal Kazior 已提交
4151 4152
}

4153
/* Must not be called with conf_mutex held as workers can use that also. */
M
Michal Kazior 已提交
4154
void ath10k_drain_tx(struct ath10k *ar)
4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165
{
	/* 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);
}

4166
void ath10k_halt(struct ath10k *ar)
4167
{
4168 4169
	struct ath10k_vif *arvif;

4170 4171
	lockdep_assert_held(&ar->conf_mutex);

4172 4173 4174
	clear_bit(ATH10K_CAC_RUNNING, &ar->dev_flags);
	ar->filter_flags = 0;
	ar->monitor = false;
M
Michal Kazior 已提交
4175
	ar->monitor_arvif = NULL;
4176 4177

	if (ar->monitor_started)
M
Michal Kazior 已提交
4178
		ath10k_monitor_stop(ar);
4179 4180

	ar->monitor_started = false;
M
Michal Kazior 已提交
4181
	ar->tx_paused = 0;
M
Michal Kazior 已提交
4182

4183
	ath10k_scan_finish(ar);
4184 4185 4186 4187 4188
	ath10k_peer_cleanup_all(ar);
	ath10k_core_stop(ar);
	ath10k_hif_power_down(ar);

	spin_lock_bh(&ar->data_lock);
4189 4190
	list_for_each_entry(arvif, &ar->arvifs, list)
		ath10k_mac_vif_beacon_cleanup(arvif);
4191 4192 4193
	spin_unlock_bh(&ar->data_lock);
}

4194 4195 4196 4197 4198 4199
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);

4200 4201
	*tx_ant = ar->cfg_tx_chainmask;
	*rx_ant = ar->cfg_rx_chainmask;
4202 4203 4204 4205 4206 4207

	mutex_unlock(&ar->conf_mutex);

	return 0;
}

4208 4209 4210 4211 4212 4213 4214 4215 4216 4217 4218 4219 4220
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);
}

4221 4222 4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 4270 4271 4272 4273 4274 4275 4276 4277 4278 4279 4280 4281 4282 4283 4284 4285 4286 4287 4288 4289
static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
{
	int nsts = ar->vht_cap_info;

	nsts &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
	nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;

	/* If firmware does not deliver to host number of space-time
	 * streams supported, assume it support up to 4 BF STS and return
	 * the value for VHT CAP: nsts-1)
	 */
	if (nsts == 0)
		return 3;

	return nsts;
}

static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
{
	int sound_dim = ar->vht_cap_info;

	sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
	sound_dim >>= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;

	/* If the sounding dimension is not advertised by the firmware,
	 * let's use a default value of 1
	 */
	if (sound_dim == 0)
		return 1;

	return sound_dim;
}

static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
{
	struct ieee80211_sta_vht_cap vht_cap = {0};
	u16 mcs_map;
	u32 val;
	int i;

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

	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
		val = ath10k_mac_get_vht_cap_bf_sts(ar);
		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 = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
		val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
		val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;

		vht_cap.cap |= val;
	}

	mcs_map = 0;
	for (i = 0; i < 8; i++) {
		if ((i < ar->num_rf_chains) && (ar->cfg_tx_chainmask & BIT(i)))
			mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i * 2);
		else
			mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i * 2);
	}

4290 4291 4292
	if (ar->cfg_tx_chainmask <= 1)
		vht_cap.cap &= ~IEEE80211_VHT_CAP_TXSTBC;

4293 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311
	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;
4312 4313
	ht_cap.cap |=
		WLAN_HT_CAP_SM_PS_DISABLED << IEEE80211_HT_CAP_SM_PS_SHIFT;
4314 4315 4316 4317 4318 4319 4320 4321 4322 4323 4324 4325 4326 4327 4328 4329

	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;
	}

4330
	if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC && (ar->cfg_tx_chainmask > 1))
4331 4332 4333 4334 4335 4336 4337 4338 4339 4340 4341 4342 4343 4344 4345 4346 4347 4348 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364
		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;

	for (i = 0; i < ar->num_rf_chains; i++) {
		if (ar->cfg_rx_chainmask & BIT(i))
			ht_cap.mcs.rx_mask[i] = 0xFF;
	}

	ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;

	return ht_cap;
}

4365 4366 4367 4368 4369 4370 4371 4372 4373 4374
static void ath10k_mac_setup_ht_vht_cap(struct ath10k *ar)
{
	struct ieee80211_supported_band *band;
	struct ieee80211_sta_vht_cap vht_cap;
	struct ieee80211_sta_ht_cap ht_cap;

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

	if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
4375
		band = &ar->mac.sbands[NL80211_BAND_2GHZ];
4376 4377 4378
		band->ht_cap = ht_cap;
	}
	if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
4379
		band = &ar->mac.sbands[NL80211_BAND_5GHZ];
4380 4381 4382 4383 4384
		band->ht_cap = ht_cap;
		band->vht_cap = vht_cap;
	}
}

4385 4386 4387 4388 4389 4390
static int __ath10k_set_antenna(struct ath10k *ar, u32 tx_ant, u32 rx_ant)
{
	int ret;

	lockdep_assert_held(&ar->conf_mutex);

4391 4392 4393
	ath10k_check_chain_mask(ar, tx_ant, "tx");
	ath10k_check_chain_mask(ar, rx_ant, "rx");

4394 4395 4396 4397 4398 4399 4400 4401 4402 4403
	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) {
4404
		ath10k_warn(ar, "failed to set tx-chainmask: %d, req 0x%x\n",
4405 4406 4407 4408 4409 4410 4411
			    ret, tx_ant);
		return ret;
	}

	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->rx_chain_mask,
					rx_ant);
	if (ret) {
4412
		ath10k_warn(ar, "failed to set rx-chainmask: %d, req 0x%x\n",
4413 4414 4415 4416
			    ret, rx_ant);
		return ret;
	}

4417 4418 4419
	/* Reload HT/VHT capability */
	ath10k_mac_setup_ht_vht_cap(ar);

4420 4421 4422 4423 4424 4425 4426 4427 4428 4429 4430 4431 4432 4433
	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;
}

4434 4435 4436
static int ath10k_start(struct ieee80211_hw *hw)
{
	struct ath10k *ar = hw->priv;
4437
	u32 param;
4438
	int ret = 0;
4439

4440 4441
	/*
	 * This makes sense only when restarting hw. It is harmless to call
4442
	 * unconditionally. This is necessary to make sure no HTT/WMI tx
4443 4444 4445 4446
	 * commands will be submitted while restarting.
	 */
	ath10k_drain_tx(ar);

M
Michal Kazior 已提交
4447 4448
	mutex_lock(&ar->conf_mutex);

4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460
	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);
4461
		ret = -EINVAL;
4462
		goto err;
K
Kalle Valo 已提交
4463 4464 4465
	case ATH10K_STATE_UTF:
		ret = -EBUSY;
		goto err;
4466 4467 4468 4469
	}

	ret = ath10k_hif_power_up(ar);
	if (ret) {
4470
		ath10k_err(ar, "Could not init hif: %d\n", ret);
4471
		goto err_off;
4472 4473
	}

4474 4475
	ret = ath10k_core_start(ar, ATH10K_FIRMWARE_MODE_NORMAL,
				&ar->normal_mode_fw);
4476
	if (ret) {
4477
		ath10k_err(ar, "Could not init core: %d\n", ret);
4478
		goto err_power_down;
4479 4480
	}

4481 4482
	param = ar->wmi.pdev_param->pmf_qos;
	ret = ath10k_wmi_pdev_set_param(ar, param, 1);
4483
	if (ret) {
4484
		ath10k_warn(ar, "failed to enable PMF QOS: %d\n", ret);
4485 4486
		goto err_core_stop;
	}
4487

4488 4489
	param = ar->wmi.pdev_param->dynamic_bw;
	ret = ath10k_wmi_pdev_set_param(ar, param, 1);
4490
	if (ret) {
4491
		ath10k_warn(ar, "failed to enable dynamic BW: %d\n", ret);
4492 4493
		goto err_core_stop;
	}
4494

4495 4496 4497 4498 4499 4500 4501 4502 4503
	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
4504
	if (test_bit(WMI_SERVICE_BURST, ar->wmi.svc_map)) {
4505 4506
		param = ar->wmi.pdev_param->burst_enable;
		ret = ath10k_wmi_pdev_set_param(ar, param, 0);
J
Janusz Dziedzic 已提交
4507 4508 4509 4510 4511 4512
		if (ret) {
			ath10k_warn(ar, "failed to disable burst: %d\n", ret);
			goto err_core_stop;
		}
	}

4513
	__ath10k_set_antenna(ar, ar->cfg_tx_chainmask, ar->cfg_rx_chainmask);
4514

4515 4516 4517 4518 4519 4520 4521 4522 4523
	/*
	 * 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.
	 */

4524 4525
	param = ar->wmi.pdev_param->arp_ac_override;
	ret = ath10k_wmi_pdev_set_param(ar, param, 0);
4526
	if (ret) {
4527
		ath10k_warn(ar, "failed to set arp ac override parameter: %d\n",
4528
			    ret);
4529
		goto err_core_stop;
4530 4531
	}

M
Maharaja 已提交
4532
	if (test_bit(ATH10K_FW_FEATURE_SUPPORTS_ADAPTIVE_CCA,
4533
		     ar->running_fw->fw_file.fw_features)) {
M
Maharaja 已提交
4534 4535 4536 4537 4538 4539 4540 4541 4542 4543
		ret = ath10k_wmi_pdev_enable_adaptive_cca(ar, 1,
							  WMI_CCA_DETECT_LEVEL_AUTO,
							  WMI_CCA_DETECT_MARGIN_AUTO);
		if (ret) {
			ath10k_warn(ar, "failed to enable adaptive cca: %d\n",
				    ret);
			goto err_core_stop;
		}
	}

4544 4545
	param = ar->wmi.pdev_param->ani_enable;
	ret = ath10k_wmi_pdev_set_param(ar, param, 1);
4546 4547 4548 4549 4550 4551
	if (ret) {
		ath10k_warn(ar, "failed to enable ani by default: %d\n",
			    ret);
		goto err_core_stop;
	}

4552 4553
	ar->ani_enabled = true;

4554
	if (ath10k_peer_stats_enabled(ar)) {
4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565
		param = ar->wmi.pdev_param->peer_stats_update_period;
		ret = ath10k_wmi_pdev_set_param(ar, param,
						PEER_DEFAULT_STATS_UPDATE_PERIOD);
		if (ret) {
			ath10k_warn(ar,
				    "failed to set peer stats period : %d\n",
				    ret);
			goto err_core_stop;
		}
	}

4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578
	param = ar->wmi.pdev_param->enable_btcoex;
	if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
	    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
		     ar->running_fw->fw_file.fw_features)) {
		ret = ath10k_wmi_pdev_set_param(ar, param, 0);
		if (ret) {
			ath10k_warn(ar,
				    "failed to set btcoex param: %d\n", ret);
			goto err_core_stop;
		}
		clear_bit(ATH10K_FLAG_BTCOEX, &ar->dev_flags);
	}

4579
	ar->num_started_vdevs = 0;
4580 4581
	ath10k_regd_update(ar);

4582
	ath10k_spectral_start(ar);
4583
	ath10k_thermal_set_throttling(ar);
4584

4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 4596 4597
	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
4598
	mutex_unlock(&ar->conf_mutex);
4599
	return ret;
4600 4601 4602 4603 4604 4605
}

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

4606 4607
	ath10k_drain_tx(ar);

M
Michal Kazior 已提交
4608
	mutex_lock(&ar->conf_mutex);
4609
	if (ar->state != ATH10K_STATE_OFF) {
4610
		ath10k_halt(ar);
4611 4612
		ar->state = ATH10K_STATE_OFF;
	}
M
Michal Kazior 已提交
4613 4614
	mutex_unlock(&ar->conf_mutex);

4615
	cancel_delayed_work_sync(&ar->scan.timeout);
4616
	cancel_work_sync(&ar->restart_work);
4617 4618
}

4619
static int ath10k_config_ps(struct ath10k *ar)
4620
{
4621 4622
	struct ath10k_vif *arvif;
	int ret = 0;
4623 4624 4625

	lockdep_assert_held(&ar->conf_mutex);

4626 4627 4628
	list_for_each_entry(arvif, &ar->arvifs, list) {
		ret = ath10k_mac_vif_setup_ps(arvif);
		if (ret) {
4629
			ath10k_warn(ar, "failed to setup powersave: %d\n", ret);
4630 4631 4632
			break;
		}
	}
4633

4634
	return ret;
4635 4636
}

4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 4648 4649 4650 4651 4652 4653 4654 4655 4656 4657 4658 4659 4660 4661 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 4692 4693
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;
}

4694 4695
static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
{
4696 4697 4698 4699 4700 4701
	struct ath10k *ar = hw->priv;
	struct ieee80211_conf *conf = &hw->conf;
	int ret = 0;

	mutex_lock(&ar->conf_mutex);

4702 4703
	if (changed & IEEE80211_CONF_CHANGE_PS)
		ath10k_config_ps(ar);
4704 4705

	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
4706 4707 4708 4709
		ar->monitor = conf->flags & IEEE80211_CONF_MONITOR;
		ret = ath10k_monitor_recalc(ar);
		if (ret)
			ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
4710 4711 4712 4713 4714 4715
	}

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

4716 4717
static u32 get_nss_from_chainmask(u16 chain_mask)
{
4718
	if ((chain_mask & 0xf) == 0xf)
4719 4720 4721 4722 4723 4724 4725 4726
		return 4;
	else if ((chain_mask & 0x7) == 0x7)
		return 3;
	else if ((chain_mask & 0x3) == 0x3)
		return 2;
	return 1;
}

4727 4728 4729 4730
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
	u32 value = 0;
	struct ath10k *ar = arvif->ar;
4731
	int nsts;
4732
	int sound_dim;
4733 4734 4735 4736

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

4737
	nsts = ath10k_mac_get_vht_cap_bf_sts(ar);
4738 4739
	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
4740
		value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
4741

4742
	sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
4743 4744
	if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
				IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
4745
		value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767

	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);
}

4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779
/*
 * 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);
4780
	struct ath10k_peer *peer;
4781 4782
	enum wmi_sta_powersave_param param;
	int ret = 0;
4783
	u32 value;
4784
	int bit;
M
Michal Kazior 已提交
4785
	int i;
4786
	u32 vdev_param;
4787

4788 4789
	vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;

4790 4791
	mutex_lock(&ar->conf_mutex);

4792
	memset(arvif, 0, sizeof(*arvif));
M
Michal Kazior 已提交
4793
	ath10k_mac_txq_init(vif->txq);
4794

4795 4796 4797
	arvif->ar = ar;
	arvif->vif = vif;

4798
	INIT_LIST_HEAD(&arvif->list);
4799
	INIT_WORK(&arvif->ap_csa_work, ath10k_mac_vif_ap_csa_work);
4800 4801
	INIT_DELAYED_WORK(&arvif->connection_loss_work,
			  ath10k_mac_vif_sta_connection_loss_work);
4802

4803 4804 4805 4806 4807 4808 4809
	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));
	}
4810

4811 4812
	if (ar->num_peers >= ar->max_num_peers) {
		ath10k_warn(ar, "refusing vdev creation due to insufficient peer entry resources in firmware\n");
4813 4814
		ret = -ENOBUFS;
		goto err;
4815 4816
	}

B
Ben Greear 已提交
4817
	if (ar->free_vdev_map == 0) {
4818
		ath10k_warn(ar, "Free vdev map is empty, no more interfaces allowed.\n");
4819
		ret = -EBUSY;
4820
		goto err;
4821
	}
B
Ben Greear 已提交
4822
	bit = __ffs64(ar->free_vdev_map);
4823

B
Ben Greear 已提交
4824 4825
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac create vdev %i map %llx\n",
		   bit, ar->free_vdev_map);
4826

B
Ben Greear 已提交
4827
	arvif->vdev_id = bit;
4828 4829
	arvif->vdev_subtype =
		ath10k_wmi_get_vdev_subtype(ar, WMI_VDEV_SUBTYPE_NONE);
4830 4831

	switch (vif->type) {
M
Michal Kazior 已提交
4832 4833
	case NL80211_IFTYPE_P2P_DEVICE:
		arvif->vdev_type = WMI_VDEV_TYPE_STA;
4834 4835
		arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
					(ar, WMI_VDEV_SUBTYPE_P2P_DEVICE);
M
Michal Kazior 已提交
4836
		break;
4837 4838 4839 4840
	case NL80211_IFTYPE_UNSPECIFIED:
	case NL80211_IFTYPE_STATION:
		arvif->vdev_type = WMI_VDEV_TYPE_STA;
		if (vif->p2p)
4841 4842
			arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
					(ar, WMI_VDEV_SUBTYPE_P2P_CLIENT);
4843 4844 4845 4846
		break;
	case NL80211_IFTYPE_ADHOC:
		arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
		break;
B
Bob Copeland 已提交
4847
	case NL80211_IFTYPE_MESH_POINT:
4848
		if (test_bit(WMI_SERVICE_MESH_11S, ar->wmi.svc_map)) {
4849 4850
			arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
						(ar, WMI_VDEV_SUBTYPE_MESH_11S);
4851
		} else if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags)) {
B
Bob Copeland 已提交
4852 4853 4854 4855 4856 4857
			ret = -EINVAL;
			ath10k_warn(ar, "must load driver with rawmode=1 to add mesh interfaces\n");
			goto err;
		}
		arvif->vdev_type = WMI_VDEV_TYPE_AP;
		break;
4858 4859 4860 4861
	case NL80211_IFTYPE_AP:
		arvif->vdev_type = WMI_VDEV_TYPE_AP;

		if (vif->p2p)
4862 4863
			arvif->vdev_subtype = ath10k_wmi_get_vdev_subtype
						(ar, WMI_VDEV_SUBTYPE_P2P_GO);
4864 4865 4866 4867 4868 4869 4870 4871 4872
		break;
	case NL80211_IFTYPE_MONITOR:
		arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
		break;
	default:
		WARN_ON(1);
		break;
	}

M
Michal Kazior 已提交
4873 4874 4875 4876 4877 4878 4879 4880 4881
	/* 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);

4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 4898
	/* 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 ||
B
Bob Copeland 已提交
4899
	    vif->type == NL80211_IFTYPE_MESH_POINT ||
4900 4901 4902 4903
	    vif->type == NL80211_IFTYPE_AP) {
		arvif->beacon_buf = dma_zalloc_coherent(ar->dev,
							IEEE80211_MAX_FRAME_LEN,
							&arvif->beacon_paddr,
4904
							GFP_ATOMIC);
4905 4906 4907 4908 4909 4910 4911
		if (!arvif->beacon_buf) {
			ret = -ENOMEM;
			ath10k_warn(ar, "failed to allocate beacon buffer: %d\n",
				    ret);
			goto err;
		}
	}
4912 4913 4914 4915 4916 4917 4918 4919
	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;
	}
4920 4921 4922 4923

	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");
4924 4925 4926 4927

	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
				     arvif->vdev_subtype, vif->addr);
	if (ret) {
4928
		ath10k_warn(ar, "failed to create WMI vdev %i: %d\n",
4929
			    arvif->vdev_id, ret);
4930
		goto err;
4931 4932
	}

B
Ben Greear 已提交
4933
	ar->free_vdev_map &= ~(1LL << arvif->vdev_id);
M
Michal Kazior 已提交
4934
	list_add(&arvif->list, &ar->arvifs);
4935

M
Michal Kazior 已提交
4936 4937 4938 4939
	/* 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);
4940
	if (ret) {
M
Michal Kazior 已提交
4941
		ath10k_warn(ar, "failed to disable keepalive on vdev %i: %d\n",
4942
			    arvif->vdev_id, ret);
4943 4944
		goto err_vdev_delete;
	}
4945

4946
	arvif->def_wep_key_idx = -1;
4947

4948 4949
	vdev_param = ar->wmi.vdev_param->tx_encap_type;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
4950
					ATH10K_HW_TXRX_NATIVE_WIFI);
4951
	/* 10.X firmware does not support this VDEV parameter. Do not warn */
4952
	if (ret && ret != -EOPNOTSUPP) {
4953
		ath10k_warn(ar, "failed to set vdev %i TX encapsulation: %d\n",
4954
			    arvif->vdev_id, ret);
4955 4956
		goto err_vdev_delete;
	}
4957

4958 4959 4960 4961
	/* Configuring number of spatial stream for monitor interface is causing
	 * target assert in qca9888 and qca6174.
	 */
	if (ar->cfg_tx_chainmask && (vif->type != NL80211_IFTYPE_MONITOR)) {
4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974
		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;
		}
	}

4975 4976
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
M
Michal Kazior 已提交
4977 4978
		ret = ath10k_peer_create(ar, vif, NULL, arvif->vdev_id,
					 vif->addr, WMI_PEER_TYPE_DEFAULT);
4979
		if (ret) {
4980
			ath10k_warn(ar, "failed to create vdev %i peer for AP/IBSS: %d\n",
4981
				    arvif->vdev_id, ret);
4982
			goto err_vdev_delete;
4983
		}
4984 4985 4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001

		spin_lock_bh(&ar->data_lock);

		peer = ath10k_peer_find(ar, arvif->vdev_id, vif->addr);
		if (!peer) {
			ath10k_warn(ar, "failed to lookup peer %pM on vdev %i\n",
				    vif->addr, arvif->vdev_id);
			spin_unlock_bh(&ar->data_lock);
			ret = -ENOENT;
			goto err_peer_delete;
		}

		arvif->peer_id = find_first_bit(peer->peer_ids,
						ATH10K_MAX_NUM_PEER_IDS);

		spin_unlock_bh(&ar->data_lock);
	} else {
		arvif->peer_id = HTT_INVALID_PEERID;
5002
	}
5003

5004
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
5005 5006
		ret = ath10k_mac_set_kickout(arvif);
		if (ret) {
5007
			ath10k_warn(ar, "failed to set vdev %i kickout parameters: %d\n",
5008
				    arvif->vdev_id, ret);
5009 5010
			goto err_peer_delete;
		}
5011 5012 5013 5014 5015 5016 5017
	}

	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);
5018
		if (ret) {
5019
			ath10k_warn(ar, "failed to set vdev %i RX wake policy: %d\n",
5020
				    arvif->vdev_id, ret);
5021 5022
			goto err_peer_delete;
		}
5023

M
Michal Kazior 已提交
5024
		ret = ath10k_mac_vif_recalc_ps_wake_threshold(arvif);
5025
		if (ret) {
M
Michal Kazior 已提交
5026
			ath10k_warn(ar, "failed to recalc ps wake threshold on vdev %i: %d\n",
5027
				    arvif->vdev_id, ret);
5028 5029
			goto err_peer_delete;
		}
5030

M
Michal Kazior 已提交
5031
		ret = ath10k_mac_vif_recalc_ps_poll_count(arvif);
5032
		if (ret) {
M
Michal Kazior 已提交
5033
			ath10k_warn(ar, "failed to recalc ps poll count on vdev %i: %d\n",
5034
				    arvif->vdev_id, ret);
5035 5036
			goto err_peer_delete;
		}
5037 5038
	}

5039 5040 5041 5042 5043 5044 5045
	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;
	}

5046
	ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
5047
	if (ret) {
5048
		ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
5049
			    arvif->vdev_id, ret);
5050 5051
		goto err_peer_delete;
	}
5052

5053 5054 5055 5056 5057 5058 5059
	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
5060 5061 5062 5063 5064 5065 5066 5067 5068
	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;
		}
	}

5069 5070 5071 5072 5073
	spin_lock_bh(&ar->htt.tx_lock);
	if (!ar->tx_paused)
		ieee80211_wake_queue(ar->hw, arvif->vdev_id);
	spin_unlock_bh(&ar->htt.tx_lock);

5074
	mutex_unlock(&ar->conf_mutex);
5075 5076 5077
	return 0;

err_peer_delete:
5078 5079
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS)
5080 5081 5082 5083
		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
5084
	ar->free_vdev_map |= 1LL << arvif->vdev_id;
M
Michal Kazior 已提交
5085
	list_del(&arvif->list);
5086 5087

err:
5088 5089 5090 5091 5092 5093
	if (arvif->beacon_buf) {
		dma_free_coherent(ar->dev, IEEE80211_MAX_FRAME_LEN,
				  arvif->beacon_buf, arvif->beacon_paddr);
		arvif->beacon_buf = NULL;
	}

5094 5095
	mutex_unlock(&ar->conf_mutex);

5096 5097 5098
	return ret;
}

5099 5100 5101 5102 5103 5104 5105 5106
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);
}

5107 5108 5109 5110 5111
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);
M
Michal Kazior 已提交
5112
	struct ath10k_peer *peer;
5113
	int ret;
M
Michal Kazior 已提交
5114
	int i;
5115

5116
	cancel_work_sync(&arvif->ap_csa_work);
5117
	cancel_delayed_work_sync(&arvif->connection_loss_work);
5118

5119 5120
	mutex_lock(&ar->conf_mutex);

5121
	spin_lock_bh(&ar->data_lock);
5122
	ath10k_mac_vif_beacon_cleanup(arvif);
5123 5124
	spin_unlock_bh(&ar->data_lock);

5125 5126
	ret = ath10k_spectral_vif_stop(arvif);
	if (ret)
5127
		ath10k_warn(ar, "failed to stop spectral for vdev %i: %d\n",
5128 5129
			    arvif->vdev_id, ret);

B
Ben Greear 已提交
5130
	ar->free_vdev_map |= 1LL << arvif->vdev_id;
M
Michal Kazior 已提交
5131
	list_del(&arvif->list);
5132

5133 5134
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5135 5136
		ret = ath10k_wmi_peer_delete(arvif->ar, arvif->vdev_id,
					     vif->addr);
5137
		if (ret)
5138
			ath10k_warn(ar, "failed to submit AP/IBSS self-peer removal on vdev %i: %d\n",
5139
				    arvif->vdev_id, ret);
5140 5141 5142 5143

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

5144
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %i delete (remove interface)\n",
K
Kalle Valo 已提交
5145 5146
		   arvif->vdev_id);

5147 5148
	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
	if (ret)
5149
		ath10k_warn(ar, "failed to delete WMI vdev %i: %d\n",
5150
			    arvif->vdev_id, ret);
5151

5152 5153 5154
	/* Some firmware revisions don't notify host about self-peer removal
	 * until after associated vdev is deleted.
	 */
5155 5156
	if (arvif->vdev_type == WMI_VDEV_TYPE_AP ||
	    arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167
		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);
	}

M
Michal Kazior 已提交
5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181
	spin_lock_bh(&ar->data_lock);
	for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
		peer = ar->peer_map[i];
		if (!peer)
			continue;

		if (peer->vif == vif) {
			ath10k_warn(ar, "found vif peer %pM entry on vdev %i after it was supposedly removed\n",
				    vif->addr, arvif->vdev_id);
			peer->vif = NULL;
		}
	}
	spin_unlock_bh(&ar->data_lock);

5182
	ath10k_peer_cleanup(ar, arvif->vdev_id);
M
Michal Kazior 已提交
5183
	ath10k_mac_txq_unref(ar, vif->txq);
5184

M
Michal Kazior 已提交
5185 5186 5187 5188 5189 5190 5191
	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);
	}

5192 5193 5194 5195
	spin_lock_bh(&ar->htt.tx_lock);
	ath10k_mac_vif_tx_unlock_all(arvif);
	spin_unlock_bh(&ar->htt.tx_lock);

M
Michal Kazior 已提交
5196 5197
	ath10k_mac_txq_unref(ar, vif->txq);

5198 5199 5200 5201 5202 5203 5204
	mutex_unlock(&ar->conf_mutex);
}

/*
 * FIXME: Has to be verified.
 */
#define SUPPORTED_FILTERS			\
5205
	(FIF_ALLMULTI |				\
5206 5207 5208 5209 5210 5211 5212 5213 5214 5215 5216 5217 5218 5219 5220 5221 5222 5223 5224 5225 5226
	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;

5227 5228
	ret = ath10k_monitor_recalc(ar);
	if (ret)
5229
		ath10k_warn(ar, "failed to recalc monitor: %d\n", ret);
5230 5231 5232 5233 5234 5235 5236 5237 5238 5239 5240 5241

	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;
5242
	u32 vdev_param, pdev_param, slottime, preamble;
5243 5244 5245 5246 5247 5248 5249 5250

	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;
5251 5252
		vdev_param = ar->wmi.vdev_param->beacon_interval;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5253
						arvif->beacon_interval);
5254
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
5255 5256 5257
			   "mac vdev %d beacon_interval %d\n",
			   arvif->vdev_id, arvif->beacon_interval);

5258
		if (ret)
5259
			ath10k_warn(ar, "failed to set beacon interval for vdev %d: %i\n",
5260
				    arvif->vdev_id, ret);
5261 5262 5263
	}

	if (changed & BSS_CHANGED_BEACON) {
5264
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
5265 5266 5267
			   "vdev %d set beacon tx mode to staggered\n",
			   arvif->vdev_id);

5268 5269
		pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
		ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
5270 5271
						WMI_BEACON_STAGGERED_MODE);
		if (ret)
5272
			ath10k_warn(ar, "failed to set beacon mode for vdev %d: %i\n",
5273
				    arvif->vdev_id, ret);
5274 5275 5276 5277 5278

		ret = ath10k_mac_setup_bcn_tmpl(arvif);
		if (ret)
			ath10k_warn(ar, "failed to update beacon template: %d\n",
				    ret);
B
Bob Copeland 已提交
5279 5280 5281 5282 5283 5284 5285

		if (ieee80211_vif_is_mesh(vif)) {
			/* mesh doesn't use SSID but firmware needs it */
			strncpy(arvif->u.ap.ssid, "mesh",
				sizeof(arvif->u.ap.ssid));
			arvif->u.ap.ssid_len = 4;
		}
5286 5287 5288 5289 5290 5291 5292
	}

	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);
5293 5294
	}

5295
	if (changed & (BSS_CHANGED_BEACON_INFO | BSS_CHANGED_BEACON)) {
5296 5297
		arvif->dtim_period = info->dtim_period;

5298
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
5299 5300 5301
			   "mac vdev %d dtim_period %d\n",
			   arvif->vdev_id, arvif->dtim_period);

5302 5303
		vdev_param = ar->wmi.vdev_param->dtim_period;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5304 5305
						arvif->dtim_period);
		if (ret)
5306
			ath10k_warn(ar, "failed to set dtim period for vdev %d: %i\n",
5307
				    arvif->vdev_id, ret);
5308 5309 5310 5311 5312 5313 5314 5315 5316 5317
	}

	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;
	}

5318 5319
	if (changed & BSS_CHANGED_BSSID && !is_zero_ether_addr(info->bssid))
		ether_addr_copy(arvif->bssid, info->bssid);
5320 5321 5322 5323 5324

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

	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
5325
		arvif->use_cts_prot = info->use_cts_prot;
5326
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
5327
			   arvif->vdev_id, info->use_cts_prot);
K
Kalle Valo 已提交
5328

5329
		ret = ath10k_recalc_rtscts_prot(arvif);
5330
		if (ret)
5331
			ath10k_warn(ar, "failed to recalculate rts/cts prot for vdev %d: %d\n",
5332
				    arvif->vdev_id, ret);
M
Michal Kazior 已提交
5333 5334 5335 5336 5337 5338

		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",
K
Kalle Valo 已提交
5339
				    info->use_cts_prot, arvif->vdev_id, ret);
5340 5341 5342 5343 5344 5345 5346 5347 5348
	}

	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 */

5349
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
K
Kalle Valo 已提交
5350 5351
			   arvif->vdev_id, slottime);

5352 5353
		vdev_param = ar->wmi.vdev_param->slot_time;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5354 5355
						slottime);
		if (ret)
5356
			ath10k_warn(ar, "failed to set erp slot for vdev %d: %i\n",
5357
				    arvif->vdev_id, ret);
5358 5359 5360 5361 5362 5363 5364 5365
	}

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

5366
		ath10k_dbg(ar, ATH10K_DBG_MAC,
K
Kalle Valo 已提交
5367 5368 5369
			   "mac vdev %d preamble %dn",
			   arvif->vdev_id, preamble);

5370 5371
		vdev_param = ar->wmi.vdev_param->preamble;
		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
5372 5373
						preamble);
		if (ret)
5374
			ath10k_warn(ar, "failed to set preamble for vdev %d: %i\n",
5375
				    arvif->vdev_id, ret);
5376 5377 5378
	}

	if (changed & BSS_CHANGED_ASSOC) {
5379 5380 5381 5382 5383 5384 5385
		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);
5386
			ath10k_bss_assoc(hw, vif, info);
5387
			ath10k_monitor_recalc(ar);
5388 5389
		} else {
			ath10k_bss_disassoc(hw, vif);
5390
		}
5391 5392
	}

5393 5394 5395 5396 5397 5398 5399 5400 5401 5402
	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);
	}

5403
	if (changed & BSS_CHANGED_PS) {
5404 5405 5406
		arvif->ps = vif->bss_conf.ps;

		ret = ath10k_config_ps(ar);
5407 5408 5409 5410 5411
		if (ret)
			ath10k_warn(ar, "failed to setup ps on vdev %i: %d\n",
				    arvif->vdev_id, ret);
	}

5412 5413 5414 5415 5416
	mutex_unlock(&ar->conf_mutex);
}

static int ath10k_hw_scan(struct ieee80211_hw *hw,
			  struct ieee80211_vif *vif,
5417
			  struct ieee80211_scan_request *hw_req)
5418 5419 5420
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
5421
	struct cfg80211_scan_request *req = &hw_req->req;
5422 5423 5424 5425 5426 5427 5428
	struct wmi_start_scan_arg arg;
	int ret = 0;
	int i;

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
5429 5430 5431 5432 5433 5434 5435 5436 5437 5438 5439 5440
	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:
5441
		ret = -EBUSY;
5442
		break;
5443 5444 5445
	}
	spin_unlock_bh(&ar->data_lock);

5446 5447 5448
	if (ret)
		goto exit;

5449 5450 5451 5452 5453 5454 5455 5456 5457 5458 5459 5460 5461 5462 5463 5464
	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;
		}
5465 5466
	} else {
		arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
5467 5468 5469 5470 5471 5472 5473 5474 5475 5476
	}

	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) {
5477
		ath10k_warn(ar, "failed to start hw scan: %d\n", ret);
5478
		spin_lock_bh(&ar->data_lock);
5479
		ar->scan.state = ATH10K_SCAN_IDLE;
5480 5481 5482
		spin_unlock_bh(&ar->data_lock);
	}

5483 5484 5485 5486 5487
	/* 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));

5488 5489 5490 5491 5492 5493 5494 5495 5496 5497 5498
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);
5499
	ath10k_scan_abort(ar);
5500
	mutex_unlock(&ar->conf_mutex);
5501 5502

	cancel_delayed_work_sync(&ar->scan.timeout);
5503 5504
}

5505 5506 5507 5508 5509 5510 5511 5512 5513 5514 5515 5516 5517
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
5518 5519 5520 5521 5522
	 * 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.
	 */
5523

M
Michal Kazior 已提交
5524 5525
	if (arvif->vdev_type != WMI_VDEV_TYPE_AP &&
	    arvif->vdev_type != WMI_VDEV_TYPE_IBSS)
5526 5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542
		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)
5543
		ath10k_warn(ar, "failed to set vdev %i group key as default key: %d\n",
5544
			    arvif->vdev_id, ret);
5545 5546
}

5547 5548 5549 5550 5551 5552 5553 5554 5555 5556 5557
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;
5558
	int ret2;
5559
	u32 flags = 0;
5560
	u32 flags2;
5561

5562 5563 5564
	/* this one needs to be done in software */
	if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
		return 1;
5565

5566 5567 5568
	if (arvif->nohwcrypt)
		return 1;

5569 5570 5571 5572 5573 5574 5575 5576 5577 5578 5579 5580 5581 5582
	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;

5583 5584 5585 5586 5587 5588 5589
	if (is_wep) {
		if (cmd == SET_KEY)
			arvif->wep_keys[key->keyidx] = key;
		else
			arvif->wep_keys[key->keyidx] = NULL;
	}

5590 5591 5592 5593 5594 5595 5596 5597
	/* 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) {
5598
			ath10k_warn(ar, "failed to install key for non-existent peer %pM\n",
5599 5600 5601 5602 5603 5604 5605 5606 5607 5608
				    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
5609 5610 5611 5612
	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
		flags |= WMI_KEY_PAIRWISE;
	else
		flags |= WMI_KEY_GROUP;
5613 5614 5615 5616 5617

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

5618 5619 5620 5621 5622 5623 5624 5625
		/* 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);

5626 5627 5628 5629 5630 5631 5632 5633 5634
		/* 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;
	}
5635

5636
	ret = ath10k_install_key(arvif, key, cmd, peer_addr, flags);
5637
	if (ret) {
5638
		WARN_ON(ret > 0);
5639
		ath10k_warn(ar, "failed to install key for vdev %i peer %pM: %d\n",
5640
			    arvif->vdev_id, peer_addr, ret);
5641 5642 5643
		goto exit;
	}

5644 5645 5646 5647 5648 5649 5650 5651 5652 5653
	/* 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) {
5654
			WARN_ON(ret > 0);
5655 5656 5657 5658
			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);
5659 5660
			if (ret2) {
				WARN_ON(ret2 > 0);
5661 5662
				ath10k_warn(ar, "failed to disable (mcast) key for vdev %i peer %pM: %d\n",
					    arvif->vdev_id, peer_addr, ret2);
5663
			}
5664 5665 5666 5667
			goto exit;
		}
	}

5668 5669
	ath10k_set_key_h_def_keyidx(ar, arvif, cmd, key);

5670 5671 5672 5673 5674 5675 5676 5677
	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 */
5678
		ath10k_warn(ar, "Peer %pM disappeared!\n", peer_addr);
5679 5680 5681 5682 5683 5684 5685
	spin_unlock_bh(&ar->data_lock);

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

5686 5687 5688 5689 5690 5691 5692 5693 5694 5695 5696 5697 5698 5699 5700 5701 5702 5703 5704 5705 5706 5707 5708 5709 5710 5711 5712 5713 5714
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;
5715

5716 5717 5718 5719
unlock:
	mutex_unlock(&arvif->ar->conf_mutex);
}

5720 5721 5722 5723 5724 5725
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;
5726
	struct cfg80211_chan_def def;
5727
	enum nl80211_band band;
5728 5729
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
5730 5731 5732 5733 5734 5735 5736 5737
	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;

5738 5739 5740 5741 5742 5743 5744
	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;

5745 5746 5747 5748 5749 5750 5751 5752 5753 5754 5755 5756 5757
	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);

5758 5759 5760 5761
	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)));

5762
	if (changed & IEEE80211_RC_BW_CHANGED) {
5763
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM peer bw %d\n",
5764 5765 5766 5767 5768
			   sta->addr, bw);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_CHAN_WIDTH, bw);
		if (err)
5769
			ath10k_warn(ar, "failed to update STA %pM peer bw %d: %d\n",
5770 5771 5772 5773
				    sta->addr, bw, err);
	}

	if (changed & IEEE80211_RC_NSS_CHANGED) {
5774
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM nss %d\n",
5775 5776 5777 5778 5779
			   sta->addr, nss);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_NSS, nss);
		if (err)
5780
			ath10k_warn(ar, "failed to update STA %pM nss %d: %d\n",
5781 5782 5783 5784
				    sta->addr, nss, err);
	}

	if (changed & IEEE80211_RC_SMPS_CHANGED) {
5785
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac update sta %pM smps %d\n",
5786 5787 5788 5789 5790
			   sta->addr, smps);

		err = ath10k_wmi_peer_set_param(ar, arvif->vdev_id, sta->addr,
						WMI_PEER_SMPS_STATE, smps);
		if (err)
5791
			ath10k_warn(ar, "failed to update STA %pM smps %d: %d\n",
5792 5793 5794
				    sta->addr, smps, err);
	}

5795 5796 5797
	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",
5798 5799
			   sta->addr);

M
Michal Kazior 已提交
5800
		err = ath10k_station_assoc(ar, arvif->vif, sta, true);
5801
		if (err)
5802
			ath10k_warn(ar, "failed to reassociate station: %pM\n",
5803 5804 5805
				    sta->addr);
	}

5806 5807 5808
	mutex_unlock(&ar->conf_mutex);
}

M
Marek Puzyniak 已提交
5809 5810
static int ath10k_mac_inc_num_stations(struct ath10k_vif *arvif,
				       struct ieee80211_sta *sta)
5811 5812 5813 5814 5815
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->conf_mutex);

M
Marek Puzyniak 已提交
5816
	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5817 5818 5819 5820 5821 5822 5823 5824 5825 5826
		return 0;

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

	ar->num_stations++;

	return 0;
}

M
Marek Puzyniak 已提交
5827 5828
static void ath10k_mac_dec_num_stations(struct ath10k_vif *arvif,
					struct ieee80211_sta *sta)
5829 5830 5831 5832 5833
{
	struct ath10k *ar = arvif->ar;

	lockdep_assert_held(&ar->conf_mutex);

M
Marek Puzyniak 已提交
5834
	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && !sta->tdls)
5835 5836 5837 5838 5839
		return;

	ar->num_stations--;
}

5840 5841 5842 5843 5844 5845 5846
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)
5847
{
5848
	struct ath10k_mac_tdls_iter_data *iter_data = data;
5849
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5850
	struct ieee80211_vif *sta_vif = arsta->arvif->vif;
5851

5852 5853 5854 5855 5856 5857 5858 5859 5860 5861 5862 5863 5864 5865 5866 5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889 5890 5891 5892
	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;
}

5893 5894 5895 5896 5897 5898 5899 5900
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);
5901
	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
5902
	struct ath10k_peer *peer;
5903
	int ret = 0;
M
Michal Kazior 已提交
5904
	int i;
5905

5906 5907 5908 5909 5910
	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);
M
Michal Kazior 已提交
5911 5912 5913

		for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
			ath10k_mac_txq_init(sta->txq[i]);
5914 5915
	}

5916 5917 5918 5919 5920
	/* 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);

5921 5922 5923
	mutex_lock(&ar->conf_mutex);

	if (old_state == IEEE80211_STA_NOTEXIST &&
5924
	    new_state == IEEE80211_STA_NONE) {
5925 5926 5927
		/*
		 * New station addition.
		 */
5928 5929 5930 5931
		enum wmi_peer_type peer_type = WMI_PEER_TYPE_DEFAULT;
		u32 num_tdls_stations;
		u32 num_tdls_vifs;

5932 5933 5934 5935 5936
		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);
5937

M
Marek Puzyniak 已提交
5938
		ret = ath10k_mac_inc_num_stations(arvif, sta);
5939 5940 5941
		if (ret) {
			ath10k_warn(ar, "refusing to associate station: too many connected already (%d)\n",
				    ar->max_num_stations);
5942 5943 5944
			goto exit;
		}

5945 5946 5947
		if (sta->tdls)
			peer_type = WMI_PEER_TYPE_TDLS;

M
Michal Kazior 已提交
5948 5949
		ret = ath10k_peer_create(ar, vif, sta, arvif->vdev_id,
					 sta->addr, peer_type);
M
Michal Kazior 已提交
5950
		if (ret) {
5951
			ath10k_warn(ar, "failed to add peer %pM for vdev %d when adding a new sta: %i\n",
5952
				    sta->addr, arvif->vdev_id, ret);
M
Marek Puzyniak 已提交
5953
			ath10k_mac_dec_num_stations(arvif, sta);
M
Michal Kazior 已提交
5954 5955
			goto exit;
		}
5956

5957 5958 5959 5960 5961 5962 5963 5964 5965 5966 5967 5968 5969 5970 5971 5972 5973 5974
		spin_lock_bh(&ar->data_lock);

		peer = ath10k_peer_find(ar, arvif->vdev_id, sta->addr);
		if (!peer) {
			ath10k_warn(ar, "failed to lookup peer %pM on vdev %i\n",
				    vif->addr, arvif->vdev_id);
			spin_unlock_bh(&ar->data_lock);
			ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
			ath10k_mac_dec_num_stations(arvif, sta);
			ret = -ENOENT;
			goto exit;
		}

		arsta->peer_id = find_first_bit(peer->peer_ids,
						ATH10K_MAX_NUM_PEER_IDS);

		spin_unlock_bh(&ar->data_lock);

5975 5976 5977 5978 5979 5980 5981 5982 5983 5984 5985 5986 5987
		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
5988 5989
			goto exit;
		}
5990

5991 5992 5993
		if (num_tdls_stations == 0) {
			/* This is the first tdls peer in current vif */
			enum wmi_tdls_state state = WMI_TDLS_ENABLE_ACTIVE;
5994

5995 5996
			ret = ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
							      state);
5997
			if (ret) {
5998
				ath10k_warn(ar, "failed to update fw tdls state on vdev %i: %i\n",
5999
					    arvif->vdev_id, ret);
6000 6001 6002
				ath10k_peer_delete(ar, arvif->vdev_id,
						   sta->addr);
				ath10k_mac_dec_num_stations(arvif, sta);
6003 6004
				goto exit;
			}
6005 6006 6007 6008 6009 6010 6011 6012 6013 6014
		}

		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);
6015

6016 6017 6018 6019
			if (num_tdls_stations != 0)
				goto exit;
			ath10k_wmi_update_fw_tdls_state(ar, arvif->vdev_id,
							WMI_TDLS_DISABLE);
6020
		}
6021 6022 6023 6024 6025
	} else if ((old_state == IEEE80211_STA_NONE &&
		    new_state == IEEE80211_STA_NOTEXIST)) {
		/*
		 * Existing station deletion.
		 */
6026
		ath10k_dbg(ar, ATH10K_DBG_MAC,
B
Ben Greear 已提交
6027 6028
			   "mac vdev %d peer delete %pM sta %pK (sta gone)\n",
			   arvif->vdev_id, sta->addr, sta);
6029

6030 6031
		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
		if (ret)
6032
			ath10k_warn(ar, "failed to delete peer %pM for vdev %d: %i\n",
6033
				    sta->addr, arvif->vdev_id, ret);
6034

M
Marek Puzyniak 已提交
6035
		ath10k_mac_dec_num_stations(arvif, sta);
6036

M
Michal Kazior 已提交
6037 6038 6039 6040 6041 6042 6043
		spin_lock_bh(&ar->data_lock);
		for (i = 0; i < ARRAY_SIZE(ar->peer_map); i++) {
			peer = ar->peer_map[i];
			if (!peer)
				continue;

			if (peer->sta == sta) {
6044
				ath10k_warn(ar, "found sta peer %pM (ptr %pK id %d) entry on vdev %i after it was supposedly removed\n",
6045
					    sta->addr, peer, i, arvif->vdev_id);
M
Michal Kazior 已提交
6046
				peer->sta = NULL;
6047 6048 6049 6050 6051 6052 6053 6054

				/* Clean up the peer object as well since we
				 * must have failed to do this above.
				 */
				list_del(&peer->list);
				ar->peer_map[i] = NULL;
				kfree(peer);
				ar->num_peers--;
M
Michal Kazior 已提交
6055 6056 6057 6058
			}
		}
		spin_unlock_bh(&ar->data_lock);

M
Michal Kazior 已提交
6059 6060 6061
		for (i = 0; i < ARRAY_SIZE(sta->txq); i++)
			ath10k_mac_txq_unref(ar, sta->txq[i]);

6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074
		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);
		}
6075 6076 6077
	} else if (old_state == IEEE80211_STA_AUTH &&
		   new_state == IEEE80211_STA_ASSOC &&
		   (vif->type == NL80211_IFTYPE_AP ||
B
Bob Copeland 已提交
6078
		    vif->type == NL80211_IFTYPE_MESH_POINT ||
6079 6080 6081 6082
		    vif->type == NL80211_IFTYPE_ADHOC)) {
		/*
		 * New association.
		 */
6083
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM associated\n",
K
Kalle Valo 已提交
6084 6085
			   sta->addr);

M
Michal Kazior 已提交
6086
		ret = ath10k_station_assoc(ar, vif, sta, false);
6087
		if (ret)
6088
			ath10k_warn(ar, "failed to associate station %pM for vdev %i: %i\n",
6089
				    sta->addr, arvif->vdev_id, ret);
6090
	} else if (old_state == IEEE80211_STA_ASSOC &&
6091 6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109 6110 6111 6112 6113
		   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 ||
B
Bob Copeland 已提交
6114
		     vif->type == NL80211_IFTYPE_MESH_POINT ||
6115
		     vif->type == NL80211_IFTYPE_ADHOC)) {
6116 6117 6118
		/*
		 * Disassociation.
		 */
6119
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
K
Kalle Valo 已提交
6120 6121
			   sta->addr);

M
Michal Kazior 已提交
6122
		ret = ath10k_station_disassoc(ar, vif, sta);
6123
		if (ret)
6124
			ath10k_warn(ar, "failed to disassociate station: %pM vdev %i: %i\n",
6125
				    sta->addr, arvif->vdev_id, ret);
6126
	}
6127
exit:
6128 6129 6130 6131 6132
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
6133
				u16 ac, bool enable)
6134 6135
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6136 6137
	struct wmi_sta_uapsd_auto_trig_arg arg = {};
	u32 prio = 0, acc = 0;
6138 6139 6140
	u32 value = 0;
	int ret = 0;

M
Michal Kazior 已提交
6141 6142
	lockdep_assert_held(&ar->conf_mutex);

6143 6144 6145 6146 6147 6148 6149
	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;
6150 6151
		prio = 7;
		acc = 3;
6152 6153 6154 6155
		break;
	case IEEE80211_AC_VI:
		value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
6156 6157
		prio = 5;
		acc = 2;
6158 6159 6160 6161
		break;
	case IEEE80211_AC_BE:
		value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
6162 6163
		prio = 2;
		acc = 1;
6164 6165 6166 6167
		break;
	case IEEE80211_AC_BK:
		value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
			WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
6168 6169
		prio = 0;
		acc = 0;
6170 6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181
		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) {
6182
		ath10k_warn(ar, "failed to set uapsd params: %d\n", ret);
6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194
		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)
6195
		ath10k_warn(ar, "failed to set rx wake param: %d\n", ret);
6196

M
Michal Kazior 已提交
6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210
	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;
	}

6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229 6230 6231 6232 6233
	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;
		}
	}

6234 6235 6236 6237 6238 6239 6240 6241 6242
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;
6243
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
6244 6245 6246 6247 6248 6249 6250
	struct wmi_wmm_params_arg *p = NULL;
	int ret;

	mutex_lock(&ar->conf_mutex);

	switch (ac) {
	case IEEE80211_AC_VO:
6251
		p = &arvif->wmm_params.ac_vo;
6252 6253
		break;
	case IEEE80211_AC_VI:
6254
		p = &arvif->wmm_params.ac_vi;
6255 6256
		break;
	case IEEE80211_AC_BE:
6257
		p = &arvif->wmm_params.ac_be;
6258 6259
		break;
	case IEEE80211_AC_BK:
6260
		p = &arvif->wmm_params.ac_bk;
6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277 6278 6279
		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;

6280 6281 6282 6283 6284 6285 6286 6287 6288 6289 6290 6291 6292 6293 6294 6295 6296
	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;
		}
6297 6298 6299 6300
	}

	ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
	if (ret)
6301
		ath10k_warn(ar, "failed to set sta uapsd: %d\n", ret);
6302 6303 6304 6305 6306 6307

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

6308
#define ATH10K_ROC_TIMEOUT_HZ (2 * HZ)
6309 6310 6311 6312 6313 6314 6315 6316 6317 6318

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;
6319
	int ret = 0;
M
Michal Kazior 已提交
6320
	u32 scan_time_msec;
6321 6322 6323 6324

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
6325 6326 6327 6328 6329 6330 6331 6332 6333
	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;
6334
		ar->scan.roc_notify = true;
6335 6336 6337 6338 6339
		ret = 0;
		break;
	case ATH10K_SCAN_STARTING:
	case ATH10K_SCAN_RUNNING:
	case ATH10K_SCAN_ABORTING:
6340
		ret = -EBUSY;
6341
		break;
6342 6343 6344
	}
	spin_unlock_bh(&ar->data_lock);

6345 6346 6347
	if (ret)
		goto exit;

M
Michal Kazior 已提交
6348
	scan_time_msec = ar->hw->wiphy->max_remain_on_channel_duration * 2;
M
Michal Kazior 已提交
6349

6350 6351 6352 6353 6354 6355
	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
6356 6357 6358
	arg.dwell_time_active = scan_time_msec;
	arg.dwell_time_passive = scan_time_msec;
	arg.max_scan_time = scan_time_msec;
6359 6360
	arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
	arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
6361
	arg.burst_duration_ms = duration;
6362 6363 6364

	ret = ath10k_start_scan(ar, &arg);
	if (ret) {
6365
		ath10k_warn(ar, "failed to start roc scan: %d\n", ret);
6366
		spin_lock_bh(&ar->data_lock);
6367
		ar->scan.state = ATH10K_SCAN_IDLE;
6368 6369 6370 6371
		spin_unlock_bh(&ar->data_lock);
		goto exit;
	}

6372
	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3 * HZ);
6373
	if (ret == 0) {
6374
		ath10k_warn(ar, "failed to switch to channel for roc scan\n");
6375 6376 6377

		ret = ath10k_scan_stop(ar);
		if (ret)
6378
			ath10k_warn(ar, "failed to stop scan: %d\n", ret);
6379

6380 6381 6382 6383
		ret = -ETIMEDOUT;
		goto exit;
	}

M
Michal Kazior 已提交
6384 6385 6386
	ieee80211_queue_delayed_work(ar->hw, &ar->scan.timeout,
				     msecs_to_jiffies(duration));

6387 6388 6389 6390 6391 6392 6393 6394 6395 6396 6397
	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);
6398 6399 6400 6401 6402

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

6403
	ath10k_scan_abort(ar);
6404

6405 6406
	mutex_unlock(&ar->conf_mutex);

6407 6408
	cancel_delayed_work_sync(&ar->scan.timeout);

6409 6410 6411 6412 6413 6414 6415 6416
	return 0;
}

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

6417 6418 6419 6420 6421
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
6422

6423
	mutex_lock(&ar->conf_mutex);
6424
	list_for_each_entry(arvif, &ar->arvifs, list) {
6425
		ath10k_dbg(ar, ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
6426 6427 6428 6429
			   arvif->vdev_id, value);

		ret = ath10k_mac_set_rts(arvif, value);
		if (ret) {
6430
			ath10k_warn(ar, "failed to set rts threshold for vdev %d: %d\n",
6431 6432 6433 6434
				    arvif->vdev_id, ret);
			break;
		}
	}
6435 6436
	mutex_unlock(&ar->conf_mutex);

6437
	return ret;
6438 6439
}

6440 6441 6442 6443 6444 6445 6446 6447 6448 6449 6450 6451 6452 6453 6454
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;
}

6455 6456
static void ath10k_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
			 u32 queues, bool drop)
6457 6458
{
	struct ath10k *ar = hw->priv;
6459
	bool skip;
6460
	long time_left;
6461 6462 6463 6464 6465 6466

	/* 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
6467 6468
	mutex_lock(&ar->conf_mutex);

6469 6470 6471
	if (ar->state == ATH10K_STATE_WEDGED)
		goto skip;

6472
	time_left = wait_event_timeout(ar->htt.empty_tx_wq, ({
6473
			bool empty;
6474

6475
			spin_lock_bh(&ar->htt.tx_lock);
6476
			empty = (ar->htt.num_pending_tx == 0);
6477
			spin_unlock_bh(&ar->htt.tx_lock);
6478

M
Michal Kazior 已提交
6479 6480 6481
			skip = (ar->state == ATH10K_STATE_WEDGED) ||
			       test_bit(ATH10K_FLAG_CRASH_FLUSH,
					&ar->dev_flags);
6482 6483

			(empty || skip);
6484
		}), ATH10K_FLUSH_TIMEOUT_HZ);
6485

6486 6487 6488
	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
6489

6490
skip:
M
Michal Kazior 已提交
6491
	mutex_unlock(&ar->conf_mutex);
6492 6493 6494 6495 6496 6497 6498 6499 6500 6501 6502
}

/* 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;
}

6503 6504
static void ath10k_reconfig_complete(struct ieee80211_hw *hw,
				     enum ieee80211_reconfig_type reconfig_type)
6505 6506 6507
{
	struct ath10k *ar = hw->priv;

6508 6509 6510
	if (reconfig_type != IEEE80211_RECONFIG_TYPE_RESTART)
		return;

6511 6512 6513 6514 6515
	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) {
6516
		ath10k_info(ar, "device successfully recovered\n");
6517
		ar->state = ATH10K_STATE_ON;
M
Michal Kazior 已提交
6518
		ieee80211_wake_queues(ar->hw);
6519 6520 6521 6522 6523
	}

	mutex_unlock(&ar->conf_mutex);
}

6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 6553 6554 6555 6556
static void
ath10k_mac_update_bss_chan_survey(struct ath10k *ar,
				  struct ieee80211_channel *channel)
{
	int ret;
	enum wmi_bss_survey_req_type type = WMI_BSS_SURVEY_REQ_TYPE_READ_CLEAR;

	lockdep_assert_held(&ar->conf_mutex);

	if (!test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map) ||
	    (ar->rx_channel != channel))
		return;

	if (ar->scan.state != ATH10K_SCAN_IDLE) {
		ath10k_dbg(ar, ATH10K_DBG_MAC, "ignoring bss chan info request while scanning..\n");
		return;
	}

	reinit_completion(&ar->bss_survey_done);

	ret = ath10k_wmi_pdev_bss_chan_info_request(ar, type);
	if (ret) {
		ath10k_warn(ar, "failed to send pdev bss chan info request\n");
		return;
	}

	ret = wait_for_completion_timeout(&ar->bss_survey_done, 3 * HZ);
	if (!ret) {
		ath10k_warn(ar, "bss channel survey timed out\n");
		return;
	}
}

M
Michal Kazior 已提交
6557 6558 6559 6560 6561 6562 6563 6564 6565 6566
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);

6567
	sband = hw->wiphy->bands[NL80211_BAND_2GHZ];
M
Michal Kazior 已提交
6568 6569 6570 6571 6572 6573
	if (sband && idx >= sband->n_channels) {
		idx -= sband->n_channels;
		sband = NULL;
	}

	if (!sband)
6574
		sband = hw->wiphy->bands[NL80211_BAND_5GHZ];
M
Michal Kazior 已提交
6575 6576 6577 6578 6579 6580

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

6581
	ath10k_mac_update_bss_chan_survey(ar, &sband->channels[idx]);
6582

M
Michal Kazior 已提交
6583 6584 6585 6586 6587 6588
	spin_lock_bh(&ar->data_lock);
	memcpy(survey, ar_survey, sizeof(*survey));
	spin_unlock_bh(&ar->data_lock);

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

6589 6590 6591
	if (ar->rx_channel == survey->channel)
		survey->filled |= SURVEY_INFO_IN_USE;

M
Michal Kazior 已提交
6592 6593 6594 6595 6596
exit:
	mutex_unlock(&ar->conf_mutex);
	return ret;
}

6597
static bool
6598
ath10k_mac_bitrate_mask_has_single_rate(struct ath10k *ar,
6599
					enum nl80211_band band,
6600
					const struct cfg80211_bitrate_mask *mask)
6601
{
6602 6603
	int num_rates = 0;
	int i;
6604

6605
	num_rates += hweight32(mask->control[band].legacy);
6606

6607 6608
	for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++)
		num_rates += hweight8(mask->control[band].ht_mcs[i]);
6609

6610 6611
	for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++)
		num_rates += hweight16(mask->control[band].vht_mcs[i]);
6612

6613
	return num_rates == 1;
6614 6615 6616
}

static bool
6617
ath10k_mac_bitrate_mask_get_single_nss(struct ath10k *ar,
6618
				       enum nl80211_band band,
6619 6620 6621 6622 6623 6624 6625 6626
				       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;
6627

6628
	if (mask->control[band].legacy)
6629 6630
		return false;

6631 6632
	for (i = 0; i < ARRAY_SIZE(mask->control[band].ht_mcs); i++) {
		if (mask->control[band].ht_mcs[i] == 0)
6633
			continue;
6634 6635 6636 6637 6638
		else if (mask->control[band].ht_mcs[i] ==
			 sband->ht_cap.mcs.rx_mask[i])
			ht_nss_mask |= BIT(i);
		else
			return false;
6639 6640
	}

6641 6642
	for (i = 0; i < ARRAY_SIZE(mask->control[band].vht_mcs); i++) {
		if (mask->control[band].vht_mcs[i] == 0)
6643
			continue;
6644 6645 6646 6647 6648
		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;
6649 6650
	}

6651
	if (ht_nss_mask != vht_nss_mask)
6652 6653
		return false;

6654
	if (ht_nss_mask == 0)
6655 6656
		return false;

6657
	if (BIT(fls(ht_nss_mask)) - 1 != ht_nss_mask)
6658 6659
		return false;

6660
	*nss = fls(ht_nss_mask);
6661 6662 6663 6664

	return true;
}

6665 6666
static int
ath10k_mac_bitrate_mask_get_single_rate(struct ath10k *ar,
6667
					enum nl80211_band band,
6668 6669
					const struct cfg80211_bitrate_mask *mask,
					u8 *rate, u8 *nss)
6670
{
6671 6672 6673 6674 6675 6676
	struct ieee80211_supported_band *sband = &ar->mac.sbands[band];
	int rate_idx;
	int i;
	u16 bitrate;
	u8 preamble;
	u8 hw_rate;
6677

6678 6679
	if (hweight32(mask->control[band].legacy) == 1) {
		rate_idx = ffs(mask->control[band].legacy) - 1;
6680

6681 6682
		hw_rate = sband->bitrates[rate_idx].hw_value;
		bitrate = sband->bitrates[rate_idx].bitrate;
6683

6684 6685 6686 6687
		if (ath10k_mac_bitrate_is_cck(bitrate))
			preamble = WMI_RATE_PREAMBLE_CCK;
		else
			preamble = WMI_RATE_PREAMBLE_OFDM;
6688

6689 6690 6691 6692
		*nss = 1;
		*rate = preamble << 6 |
			(*nss - 1) << 4 |
			hw_rate << 0;
6693

6694
		return 0;
6695 6696
	}

6697 6698 6699 6700 6701 6702
	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);
6703

6704 6705 6706
			return 0;
		}
	}
6707

6708 6709 6710 6711 6712 6713
	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);
6714

6715 6716 6717
			return 0;
		}
	}
6718

6719
	return -EINVAL;
6720 6721
}

6722
static int ath10k_mac_set_fixed_rate_params(struct ath10k_vif *arvif,
6723
					    u8 rate, u8 nss, u8 sgi, u8 ldpc)
6724 6725 6726
{
	struct ath10k *ar = arvif->ar;
	u32 vdev_param;
6727
	int ret;
6728

6729
	lockdep_assert_held(&ar->conf_mutex);
6730

6731 6732
	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);
6733

6734
	vdev_param = ar->wmi.vdev_param->fixed_rate;
6735
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, rate);
6736
	if (ret) {
6737
		ath10k_warn(ar, "failed to set fixed rate param 0x%02x: %d\n",
6738 6739
			    rate, ret);
		return ret;
6740 6741 6742
	}

	vdev_param = ar->wmi.vdev_param->nss;
6743
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, nss);
6744
	if (ret) {
6745 6746
		ath10k_warn(ar, "failed to set nss param %d: %d\n", nss, ret);
		return ret;
6747 6748
	}

6749
	vdev_param = ar->wmi.vdev_param->sgi;
6750
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, sgi);
6751
	if (ret) {
6752 6753
		ath10k_warn(ar, "failed to set sgi param %d: %d\n", sgi, ret);
		return ret;
6754 6755
	}

6756 6757 6758 6759 6760 6761 6762
	vdev_param = ar->wmi.vdev_param->ldpc;
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, ldpc);
	if (ret) {
		ath10k_warn(ar, "failed to set ldpc param %d: %d\n", ldpc, ret);
		return ret;
	}

6763
	return 0;
6764 6765
}

6766 6767
static bool
ath10k_mac_can_set_bitrate_mask(struct ath10k *ar,
6768
				enum nl80211_band band,
6769 6770 6771 6772
				const struct cfg80211_bitrate_mask *mask)
{
	int i;
	u16 vht_mcs;
6773

6774 6775 6776 6777 6778 6779 6780 6781 6782 6783 6784 6785 6786 6787 6788 6789 6790
	/* 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;
		}
6791 6792
	}

6793 6794
	return true;
}
6795

6796 6797 6798 6799 6800 6801 6802 6803 6804 6805 6806 6807 6808 6809 6810
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);
6811 6812
}

6813 6814 6815
static int ath10k_mac_op_set_bitrate_mask(struct ieee80211_hw *hw,
					  struct ieee80211_vif *vif,
					  const struct cfg80211_bitrate_mask *mask)
6816 6817
{
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
M
Michal Kazior 已提交
6818
	struct cfg80211_chan_def def;
6819
	struct ath10k *ar = arvif->ar;
6820
	enum nl80211_band band;
6821 6822
	const u8 *ht_mcs_mask;
	const u16 *vht_mcs_mask;
6823 6824 6825
	u8 rate;
	u8 nss;
	u8 sgi;
6826
	u8 ldpc;
6827 6828
	int single_nss;
	int ret;
6829

M
Michal Kazior 已提交
6830 6831
	if (ath10k_mac_vif_chan(vif, &def))
		return -EPERM;
6832

M
Michal Kazior 已提交
6833
	band = def.chan->band;
6834 6835
	ht_mcs_mask = mask->control[band].ht_mcs;
	vht_mcs_mask = mask->control[band].vht_mcs;
6836
	ldpc = !!(ar->ht_cap_info & WMI_HT_CAP_LDPC);
6837

6838 6839
	sgi = mask->control[band].gi;
	if (sgi == NL80211_TXRATE_FORCE_LGI)
6840
		return -EINVAL;
6841

6842 6843 6844 6845 6846 6847 6848 6849 6850 6851 6852 6853 6854 6855
	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;
6856 6857 6858 6859 6860
		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))
6861
			return -EINVAL;
6862 6863 6864 6865 6866 6867 6868 6869 6870

		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);
6871 6872
	}

6873 6874
	mutex_lock(&ar->conf_mutex);

6875
	ret = ath10k_mac_set_fixed_rate_params(arvif, rate, nss, sgi, ldpc);
6876 6877 6878 6879
	if (ret) {
		ath10k_warn(ar, "failed to set fixed rate params on vdev %i: %d\n",
			    arvif->vdev_id, ret);
		goto exit;
6880 6881
	}

6882 6883 6884 6885
exit:
	mutex_unlock(&ar->conf_mutex);

	return ret;
6886 6887
}

6888 6889 6890 6891 6892 6893 6894 6895 6896 6897 6898
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);

6899
	ath10k_dbg(ar, ATH10K_DBG_MAC,
6900 6901 6902 6903 6904 6905 6906 6907 6908 6909 6910 6911 6912 6913 6914 6915 6916 6917
		   "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:
6918
			ath10k_warn(ar, "Invalid bandwidth %d in rc update for %pM\n",
6919
				    sta->bandwidth, sta->addr);
6920 6921 6922 6923 6924 6925 6926 6927 6928 6929 6930 6931 6932 6933 6934 6935 6936 6937 6938 6939 6940 6941 6942 6943 6944
			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:
6945
			ath10k_warn(ar, "Invalid smps %d in sta rc update for %pM\n",
6946
				    sta->smps_mode, sta->addr);
6947 6948 6949 6950 6951 6952 6953 6954 6955 6956 6957 6958 6959 6960
			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);
}

6961 6962 6963 6964 6965 6966 6967 6968 6969 6970
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;
}

6971
static void ath10k_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
K
Kalle Valo 已提交
6972
			   u64 tsf)
6973 6974 6975 6976 6977 6978 6979 6980 6981 6982 6983 6984 6985 6986 6987 6988 6989 6990 6991 6992 6993 6994 6995 6996
{
	struct ath10k *ar = hw->priv;
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
	u32 tsf_offset, vdev_param = ar->wmi.vdev_param->set_tsf;
	int ret;

	/* Workaround:
	 *
	 * Given tsf argument is entire TSF value, but firmware accepts
	 * only TSF offset to current TSF.
	 *
	 * get_tsf function is used to get offset value, however since
	 * ath10k_get_tsf is not implemented properly, it will return 0 always.
	 * Luckily all the caller functions to set_tsf, as of now, also rely on
	 * get_tsf function to get entire tsf value such get_tsf() + tsf_delta,
	 * final tsf offset value to firmware will be arithmetically correct.
	 */
	tsf_offset = tsf - ath10k_get_tsf(hw, vif);
	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
					vdev_param, tsf_offset);
	if (ret && ret != -EOPNOTSUPP)
		ath10k_warn(ar, "failed to set tsf offset: %d\n", ret);
}

6997 6998
static int ath10k_ampdu_action(struct ieee80211_hw *hw,
			       struct ieee80211_vif *vif,
6999
			       struct ieee80211_ampdu_params *params)
7000
{
7001
	struct ath10k *ar = hw->priv;
7002
	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
7003 7004 7005
	struct ieee80211_sta *sta = params->sta;
	enum ieee80211_ampdu_mlme_action action = params->action;
	u16 tid = params->tid;
7006

7007
	ath10k_dbg(ar, ATH10K_DBG_MAC, "mac ampdu vdev_id %i sta %pM tid %hu action %d\n",
7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 7030
		   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
7031
static void
7032 7033 7034 7035
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
7036 7037 7038 7039 7040 7041 7042 7043 7044
{
	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);

7045 7046 7047
	WARN_ON(ctx && vifs);
	WARN_ON(vifs && n_vifs != 1);

M
Michal Kazior 已提交
7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058
	/* 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();
7059
	if (!ctx && ath10k_mac_num_chanctxs(ar) == 1) {
M
Michal Kazior 已提交
7060
		ieee80211_iter_chan_contexts_atomic(ar->hw,
K
Kalle Valo 已提交
7061 7062
						    ath10k_mac_get_any_chandef_iter,
						    &def);
7063 7064 7065 7066

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

M
Michal Kazior 已提交
7067
		ar->rx_channel = def->chan;
7068 7069 7070 7071 7072 7073 7074
	} else if ((ctx && ath10k_mac_num_chanctxs(ar) == 0) ||
		   (ctx && (ar->state == ATH10K_STATE_RESTARTED))) {
		/* During driver restart due to firmware assert, since mac80211
		 * already has valid channel context for given radio, channel
		 * context iteration return num_chanctx > 0. So fix rx_channel
		 * when restart is in progress.
		 */
7075
		ar->rx_channel = ctx->def.chan;
M
Michal Kazior 已提交
7076 7077 7078 7079 7080 7081
	} else {
		ar->rx_channel = NULL;
	}
	rcu_read_unlock();
}

7082 7083 7084 7085 7086 7087 7088 7089 7090 7091 7092 7093 7094 7095 7096 7097 7098 7099 7100 7101 7102 7103 7104 7105 7106 7107 7108 7109 7110 7111 7112 7113 7114 7115 7116 7117 7118 7119 7120 7121 7122 7123 7124 7125 7126 7127 7128 7129 7130 7131 7132 7133 7134 7135 7136 7137 7138 7139 7140 7141 7142 7143 7144 7145 7146 7147 7148 7149 7150 7151 7152 7153 7154 7155 7156 7157 7158 7159 7160 7161 7162 7163 7164 7165 7166 7167 7168 7169
static void
ath10k_mac_update_vif_chan(struct ath10k *ar,
			   struct ieee80211_vif_chanctx_switch *vifs,
			   int n_vifs)
{
	struct ath10k_vif *arvif;
	int ret;
	int i;

	lockdep_assert_held(&ar->conf_mutex);

	/* First stop monitor interface. Some FW versions crash if there's a
	 * lone monitor interface.
	 */
	if (ar->monitor_started)
		ath10k_monitor_stop(ar);

	for (i = 0; i < n_vifs; i++) {
		arvif = ath10k_vif_to_arvif(vifs[i].vif);

		ath10k_dbg(ar, ATH10K_DBG_MAC,
			   "mac chanctx switch vdev_id %i freq %hu->%hu width %d->%d\n",
			   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,
			   vifs[i].new_ctx->def.width);

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

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

		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;
		}
	}

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

	spin_lock_bh(&ar->data_lock);
	ath10k_mac_update_rx_channel(ar, NULL, vifs, n_vifs);
	spin_unlock_bh(&ar->data_lock);

	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
7170 7171 7172 7173 7174 7175 7176
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,
7177
		   "mac chanctx add freq %hu width %d ptr %pK\n",
M
Michal Kazior 已提交
7178 7179 7180 7181 7182
		   ctx->def.chan->center_freq, ctx->def.width, ctx);

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
7183
	ath10k_mac_update_rx_channel(ar, ctx, NULL, 0);
M
Michal Kazior 已提交
7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200
	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,
7201
		   "mac chanctx remove freq %hu width %d ptr %pK\n",
M
Michal Kazior 已提交
7202 7203 7204 7205 7206
		   ctx->def.chan->center_freq, ctx->def.width, ctx);

	mutex_lock(&ar->conf_mutex);

	spin_lock_bh(&ar->data_lock);
7207
	ath10k_mac_update_rx_channel(ar, NULL, NULL, 0);
M
Michal Kazior 已提交
7208 7209 7210 7211 7212 7213 7214 7215
	spin_unlock_bh(&ar->data_lock);

	ath10k_recalc_radar_detection(ar);
	ath10k_monitor_recalc(ar);

	mutex_unlock(&ar->conf_mutex);
}

7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 7242 7243 7244 7245 7246 7247 7248 7249 7250 7251 7252 7253 7254
struct ath10k_mac_change_chanctx_arg {
	struct ieee80211_chanctx_conf *ctx;
	struct ieee80211_vif_chanctx_switch *vifs;
	int n_vifs;
	int next_vif;
};

static void
ath10k_mac_change_chanctx_cnt_iter(void *data, u8 *mac,
				   struct ieee80211_vif *vif)
{
	struct ath10k_mac_change_chanctx_arg *arg = data;

	if (rcu_access_pointer(vif->chanctx_conf) != arg->ctx)
		return;

	arg->n_vifs++;
}

static void
ath10k_mac_change_chanctx_fill_iter(void *data, u8 *mac,
				    struct ieee80211_vif *vif)
{
	struct ath10k_mac_change_chanctx_arg *arg = data;
	struct ieee80211_chanctx_conf *ctx;

	ctx = rcu_access_pointer(vif->chanctx_conf);
	if (ctx != arg->ctx)
		return;

	if (WARN_ON(arg->next_vif == arg->n_vifs))
		return;

	arg->vifs[arg->next_vif].vif = vif;
	arg->vifs[arg->next_vif].old_ctx = ctx;
	arg->vifs[arg->next_vif].new_ctx = ctx;
	arg->next_vif++;
}

M
Michal Kazior 已提交
7255 7256 7257 7258 7259 7260
static void
ath10k_mac_op_change_chanctx(struct ieee80211_hw *hw,
			     struct ieee80211_chanctx_conf *ctx,
			     u32 changed)
{
	struct ath10k *ar = hw->priv;
7261
	struct ath10k_mac_change_chanctx_arg arg = { .ctx = ctx };
M
Michal Kazior 已提交
7262 7263 7264 7265

	mutex_lock(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
7266
		   "mac chanctx change freq %hu width %d ptr %pK changed %x\n",
7267
		   ctx->def.chan->center_freq, ctx->def.width, ctx, changed);
M
Michal Kazior 已提交
7268 7269 7270 7271 7272 7273 7274

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

7275 7276 7277 7278 7279 7280 7281 7282 7283 7284 7285 7286 7287 7288 7289 7290 7291 7292 7293 7294 7295 7296 7297 7298
	if (changed & IEEE80211_CHANCTX_CHANGE_WIDTH) {
		ieee80211_iterate_active_interfaces_atomic(
					hw,
					IEEE80211_IFACE_ITER_NORMAL,
					ath10k_mac_change_chanctx_cnt_iter,
					&arg);
		if (arg.n_vifs == 0)
			goto radar;

		arg.vifs = kcalloc(arg.n_vifs, sizeof(arg.vifs[0]),
				   GFP_KERNEL);
		if (!arg.vifs)
			goto radar;

		ieee80211_iterate_active_interfaces_atomic(
					hw,
					IEEE80211_IFACE_ITER_NORMAL,
					ath10k_mac_change_chanctx_fill_iter,
					&arg);
		ath10k_mac_update_vif_chan(ar, arg.vifs, arg.n_vifs);
		kfree(arg.vifs);
	}

radar:
M
Michal Kazior 已提交
7299 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320 7321 7322 7323
	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,
7324
		   "mac chanctx assign ptr %pK vdev_id %i\n",
M
Michal Kazior 已提交
7325 7326 7327 7328 7329 7330 7331
		   ctx, arvif->vdev_id);

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

7332
	ret = ath10k_vdev_start(arvif, &ctx->def);
M
Michal Kazior 已提交
7333 7334 7335
	if (ret) {
		ath10k_warn(ar, "failed to start vdev %i addr %pM on freq %d: %d\n",
			    arvif->vdev_id, vif->addr,
7336
			    ctx->def.chan->center_freq, ret);
M
Michal Kazior 已提交
7337 7338 7339 7340 7341
		goto err;
	}

	arvif->is_started = true;

7342 7343 7344 7345 7346 7347 7348
	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
7349 7350 7351 7352 7353 7354 7355 7356 7357 7358 7359 7360 7361 7362 7363 7364 7365
	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;
7366
	ath10k_mac_vif_setup_ps(arvif);
M
Michal Kazior 已提交
7367 7368 7369 7370 7371 7372 7373 7374 7375 7376 7377 7378 7379 7380 7381 7382 7383 7384

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,
7385
		   "mac chanctx unassign ptr %pK vdev_id %i\n",
M
Michal Kazior 已提交
7386 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423
		   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;

	mutex_lock(&ar->conf_mutex);

	ath10k_dbg(ar, ATH10K_DBG_MAC,
		   "mac chanctx switch n_vifs %d mode %d\n",
		   n_vifs, mode);
7424
	ath10k_mac_update_vif_chan(ar, vifs, n_vifs);
M
Michal Kazior 已提交
7425 7426 7427 7428 7429

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

7430
static const struct ieee80211_ops ath10k_ops = {
M
Michal Kazior 已提交
7431
	.tx				= ath10k_mac_op_tx,
M
Michal Kazior 已提交
7432
	.wake_tx_queue			= ath10k_mac_op_wake_tx_queue,
7433 7434 7435 7436 7437 7438 7439 7440 7441 7442
	.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,
7443
	.set_default_unicast_key        = ath10k_set_default_unicast_key,
7444 7445 7446 7447 7448
	.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,
7449
	.set_frag_threshold		= ath10k_mac_op_set_frag_threshold,
7450 7451
	.flush				= ath10k_flush,
	.tx_last_beacon			= ath10k_tx_last_beacon,
7452 7453
	.set_antenna			= ath10k_set_antenna,
	.get_antenna			= ath10k_get_antenna,
7454
	.reconfig_complete		= ath10k_reconfig_complete,
M
Michal Kazior 已提交
7455
	.get_survey			= ath10k_get_survey,
7456
	.set_bitrate_mask		= ath10k_mac_op_set_bitrate_mask,
7457
	.sta_rc_update			= ath10k_sta_rc_update,
7458
	.get_tsf			= ath10k_get_tsf,
7459
	.set_tsf			= ath10k_set_tsf,
7460
	.ampdu_action			= ath10k_ampdu_action,
B
Ben Greear 已提交
7461 7462 7463
	.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
7464 7465 7466 7467 7468 7469
	.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
7470 7471 7472

	CFG80211_TESTMODE_CMD(ath10k_tm_cmd)

M
Michal Kazior 已提交
7473
#ifdef CONFIG_PM
7474 7475
	.suspend			= ath10k_wow_op_suspend,
	.resume				= ath10k_wow_op_resume,
M
Michal Kazior 已提交
7476
#endif
7477 7478
#ifdef CONFIG_MAC80211_DEBUGFS
	.sta_add_debugfs		= ath10k_sta_add_debugfs,
7479
	.sta_statistics			= ath10k_sta_statistics,
7480
#endif
7481 7482 7483
};

#define CHAN2G(_channel, _freq, _flags) { \
7484
	.band			= NL80211_BAND_2GHZ, \
7485 7486 7487 7488 7489 7490 7491 7492
	.hw_value		= (_channel), \
	.center_freq		= (_freq), \
	.flags			= (_flags), \
	.max_antenna_gain	= 0, \
	.max_power		= 30, \
}

#define CHAN5G(_channel, _freq, _flags) { \
7493
	.band			= NL80211_BAND_5GHZ, \
7494 7495 7496 7497 7498 7499 7500 7501 7502 7503 7504 7505 7506 7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518
	.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[] = {
7519 7520 7521 7522 7523 7524 7525 7526 7527 7528 7529 7530 7531 7532 7533 7534 7535 7536 7537
	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),
7538
	CHAN5G(144, 5720, 0),
7539 7540 7541 7542 7543
	CHAN5G(149, 5745, 0),
	CHAN5G(153, 5765, 0),
	CHAN5G(157, 5785, 0),
	CHAN5G(161, 5805, 0),
	CHAN5G(165, 5825, 0),
7544 7545
};

M
Michal Kazior 已提交
7546
struct ath10k *ath10k_mac_create(size_t priv_size)
7547 7548
{
	struct ieee80211_hw *hw;
7549
	struct ieee80211_ops *ops;
7550 7551
	struct ath10k *ar;

7552 7553
	ops = kmemdup(&ath10k_ops, sizeof(ath10k_ops), GFP_KERNEL);
	if (!ops)
7554 7555
		return NULL;

7556 7557 7558 7559 7560 7561
	hw = ieee80211_alloc_hw(sizeof(struct ath10k) + priv_size, ops);
	if (!hw) {
		kfree(ops);
		return NULL;
	}

7562 7563
	ar = hw->priv;
	ar->hw = hw;
7564
	ar->ops = ops;
7565 7566 7567 7568 7569 7570

	return ar;
}

void ath10k_mac_destroy(struct ath10k *ar)
{
7571 7572
	struct ieee80211_ops *ops = ar->ops;

7573
	ieee80211_free_hw(ar->hw);
7574
	kfree(ops);
7575 7576 7577 7578
}

static const struct ieee80211_iface_limit ath10k_if_limits[] = {
	{
7579 7580 7581
		.max	= 8,
		.types	= BIT(NL80211_IFTYPE_STATION)
			| BIT(NL80211_IFTYPE_P2P_CLIENT)
7582 7583
	},
	{
7584 7585
		.max	= 3,
		.types	= BIT(NL80211_IFTYPE_P2P_GO)
7586 7587
	},
	{
7588 7589
		.max	= 1,
		.types	= BIT(NL80211_IFTYPE_P2P_DEVICE)
M
Michal Kazior 已提交
7590 7591
	},
	{
7592 7593
		.max	= 7,
		.types	= BIT(NL80211_IFTYPE_AP)
B
Bob Copeland 已提交
7594
#ifdef CONFIG_MAC80211_MESH
7595
			| BIT(NL80211_IFTYPE_MESH_POINT)
B
Bob Copeland 已提交
7596
#endif
7597
	},
7598 7599
};

7600
static const struct ieee80211_iface_limit ath10k_10x_if_limits[] = {
7601
	{
7602 7603
		.max	= 8,
		.types	= BIT(NL80211_IFTYPE_AP)
B
Bob Copeland 已提交
7604
#ifdef CONFIG_MAC80211_MESH
7605
			| BIT(NL80211_IFTYPE_MESH_POINT)
B
Bob Copeland 已提交
7606
#endif
7607
	},
7608 7609 7610 7611
	{
		.max	= 1,
		.types	= BIT(NL80211_IFTYPE_STATION)
	},
7612 7613 7614 7615 7616 7617 7618 7619 7620 7621
};

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,
	},
7622 7623 7624
};

static const struct ieee80211_iface_combination ath10k_10x_if_comb[] = {
7625
	{
7626 7627
		.limits = ath10k_10x_if_limits,
		.n_limits = ARRAY_SIZE(ath10k_10x_if_limits),
7628 7629 7630
		.max_interfaces = 8,
		.num_different_channels = 1,
		.beacon_int_infra_match = true,
7631
#ifdef CONFIG_ATH10K_DFS_CERTIFIED
7632 7633 7634 7635 7636
		.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
7637
	},
7638 7639
};

7640 7641 7642
static const struct ieee80211_iface_limit ath10k_tlv_if_limit[] = {
	{
		.max = 2,
7643 7644 7645 7646 7647
		.types = BIT(NL80211_IFTYPE_STATION),
	},
	{
		.max = 2,
		.types = BIT(NL80211_IFTYPE_AP) |
B
Bob Copeland 已提交
7648 7649 7650
#ifdef CONFIG_MAC80211_MESH
			 BIT(NL80211_IFTYPE_MESH_POINT) |
#endif
7651 7652 7653 7654 7655 7656 7657 7658 7659
			 BIT(NL80211_IFTYPE_P2P_CLIENT) |
			 BIT(NL80211_IFTYPE_P2P_GO),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
	},
};

7660 7661 7662 7663 7664 7665 7666 7667 7668 7669 7670 7671
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) |
B
Bob Copeland 已提交
7672 7673 7674
#ifdef CONFIG_MAC80211_MESH
			 BIT(NL80211_IFTYPE_MESH_POINT) |
#endif
7675 7676 7677 7678 7679 7680 7681 7682
			 BIT(NL80211_IFTYPE_P2P_GO),
	},
	{
		.max = 1,
		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
	},
};

7683 7684 7685 7686 7687 7688 7689 7690 7691 7692 7693 7694 7695 7696 7697 7698 7699 7700
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,
7701
		.max_interfaces = 4,
7702 7703 7704 7705 7706 7707 7708 7709 7710 7711 7712 7713 7714
		.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,
7715 7716
		.num_different_channels = 1,
		.max_interfaces = 4,
7717 7718
		.n_limits = ARRAY_SIZE(ath10k_tlv_if_limit),
	},
7719 7720 7721 7722 7723 7724
	{
		.limits = ath10k_tlv_qcs_if_limit,
		.num_different_channels = 2,
		.max_interfaces = 4,
		.n_limits = ARRAY_SIZE(ath10k_tlv_qcs_if_limit),
	},
7725 7726 7727 7728 7729 7730 7731 7732
	{
		.limits = ath10k_tlv_if_limit_ibss,
		.num_different_channels = 1,
		.max_interfaces = 2,
		.n_limits = ARRAY_SIZE(ath10k_tlv_if_limit_ibss),
	},
};

7733 7734 7735 7736 7737 7738 7739 7740
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)
B
Bob Copeland 已提交
7741 7742 7743
#ifdef CONFIG_MAC80211_MESH
			| BIT(NL80211_IFTYPE_MESH_POINT)
#endif
7744 7745 7746 7747 7748 7749 7750 7751 7752 7753 7754 7755 7756 7757 7758 7759 7760 7761 7762
	},
};

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
	},
};

7763 7764 7765 7766 7767 7768 7769 7770 7771 7772 7773 7774 7775 7776 7777 7778 7779 7780 7781 7782 7783 7784 7785 7786
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) {
7787
		ath10k_warn(ar, "No VIF found for vdev %d\n", vdev_id);
7788 7789 7790 7791 7792 7793
		return NULL;
	}

	return arvif_iter.arvif;
}

7794 7795 7796 7797 7798 7799 7800 7801 7802 7803 7804 7805 7806 7807 7808 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821 7822 7823 7824 7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835 7836 7837 7838 7839 7840 7841 7842 7843 7844 7845 7846 7847 7848 7849 7850 7851 7852 7853 7854 7855 7856 7857 7858 7859 7860 7861 7862 7863 7864 7865 7866 7867 7868 7869 7870 7871 7872 7873 7874 7875 7876 7877 7878 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888 7889 7890 7891 7892 7893 7894 7895 7896
#define WRD_METHOD "WRDD"
#define WRDD_WIFI  (0x07)

static u32 ath10k_mac_wrdd_get_mcc(struct ath10k *ar, union acpi_object *wrdd)
{
	union acpi_object *mcc_pkg;
	union acpi_object *domain_type;
	union acpi_object *mcc_value;
	u32 i;

	if (wrdd->type != ACPI_TYPE_PACKAGE ||
	    wrdd->package.count < 2 ||
	    wrdd->package.elements[0].type != ACPI_TYPE_INTEGER ||
	    wrdd->package.elements[0].integer.value != 0) {
		ath10k_warn(ar, "ignoring malformed/unsupported wrdd structure\n");
		return 0;
	}

	for (i = 1; i < wrdd->package.count; ++i) {
		mcc_pkg = &wrdd->package.elements[i];

		if (mcc_pkg->type != ACPI_TYPE_PACKAGE)
			continue;
		if (mcc_pkg->package.count < 2)
			continue;
		if (mcc_pkg->package.elements[0].type != ACPI_TYPE_INTEGER ||
		    mcc_pkg->package.elements[1].type != ACPI_TYPE_INTEGER)
			continue;

		domain_type = &mcc_pkg->package.elements[0];
		if (domain_type->integer.value != WRDD_WIFI)
			continue;

		mcc_value = &mcc_pkg->package.elements[1];
		return mcc_value->integer.value;
	}
	return 0;
}

static int ath10k_mac_get_wrdd_regulatory(struct ath10k *ar, u16 *rd)
{
	struct pci_dev __maybe_unused *pdev = to_pci_dev(ar->dev);
	acpi_handle root_handle;
	acpi_handle handle;
	struct acpi_buffer wrdd = {ACPI_ALLOCATE_BUFFER, NULL};
	acpi_status status;
	u32 alpha2_code;
	char alpha2[3];

	root_handle = ACPI_HANDLE(&pdev->dev);
	if (!root_handle)
		return -EOPNOTSUPP;

	status = acpi_get_handle(root_handle, (acpi_string)WRD_METHOD, &handle);
	if (ACPI_FAILURE(status)) {
		ath10k_dbg(ar, ATH10K_DBG_BOOT,
			   "failed to get wrd method %d\n", status);
		return -EIO;
	}

	status = acpi_evaluate_object(handle, NULL, NULL, &wrdd);
	if (ACPI_FAILURE(status)) {
		ath10k_dbg(ar, ATH10K_DBG_BOOT,
			   "failed to call wrdc %d\n", status);
		return -EIO;
	}

	alpha2_code = ath10k_mac_wrdd_get_mcc(ar, wrdd.pointer);
	kfree(wrdd.pointer);
	if (!alpha2_code)
		return -EIO;

	alpha2[0] = (alpha2_code >> 8) & 0xff;
	alpha2[1] = (alpha2_code >> 0) & 0xff;
	alpha2[2] = '\0';

	ath10k_dbg(ar, ATH10K_DBG_BOOT,
		   "regulatory hint from WRDD (alpha2-code): %s\n", alpha2);

	*rd = ath_regd_find_country_by_name(alpha2);
	if (*rd == 0xffff)
		return -EIO;

	*rd |= COUNTRY_ERD_FLAG;
	return 0;
}

static int ath10k_mac_init_rd(struct ath10k *ar)
{
	int ret;
	u16 rd;

	ret = ath10k_mac_get_wrdd_regulatory(ar, &rd);
	if (ret) {
		ath10k_dbg(ar, ATH10K_DBG_BOOT,
			   "fallback to eeprom programmed regulatory settings\n");
		rd = ar->hw_eeprom_rd;
	}

	ar->ath_common.regulatory.current_rd = rd;
	return 0;
}

7897 7898
int ath10k_mac_register(struct ath10k *ar)
{
7899 7900 7901 7902 7903 7904 7905
	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,
	};
7906 7907 7908 7909 7910 7911 7912 7913
	struct ieee80211_supported_band *band;
	void *channels;
	int ret;

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

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

M
Michal Kazior 已提交
7914 7915 7916 7917
	BUILD_BUG_ON((ARRAY_SIZE(ath10k_2ghz_channels) +
		      ARRAY_SIZE(ath10k_5ghz_channels)) !=
		     ATH10K_NUM_CHANS);

7918 7919 7920 7921
	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
7922 7923 7924 7925
		if (!channels) {
			ret = -ENOMEM;
			goto err_free;
		}
7926

7927
		band = &ar->mac.sbands[NL80211_BAND_2GHZ];
7928 7929
		band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
		band->channels = channels;
7930 7931 7932 7933 7934 7935 7936 7937

		if (ar->hw_params.cck_rate_map_rev2) {
			band->n_bitrates = ath10k_g_rates_rev2_size;
			band->bitrates = ath10k_g_rates_rev2;
		} else {
			band->n_bitrates = ath10k_g_rates_size;
			band->bitrates = ath10k_g_rates;
		}
7938

7939
		ar->hw->wiphy->bands[NL80211_BAND_2GHZ] = band;
7940 7941 7942 7943 7944 7945 7946
	}

	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
7947 7948
			ret = -ENOMEM;
			goto err_free;
7949 7950
		}

7951
		band = &ar->mac.sbands[NL80211_BAND_5GHZ];
7952 7953 7954 7955
		band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
		band->channels = channels;
		band->n_bitrates = ath10k_a_rates_size;
		band->bitrates = ath10k_a_rates;
7956
		ar->hw->wiphy->bands[NL80211_BAND_5GHZ] = band;
7957 7958
	}

7959 7960
	ath10k_mac_setup_ht_vht_cap(ar);

7961 7962
	ar->hw->wiphy->interface_modes =
		BIT(NL80211_IFTYPE_STATION) |
B
Bob Copeland 已提交
7963 7964
		BIT(NL80211_IFTYPE_AP) |
		BIT(NL80211_IFTYPE_MESH_POINT);
7965

7966 7967
	ar->hw->wiphy->available_antennas_rx = ar->cfg_rx_chainmask;
	ar->hw->wiphy->available_antennas_tx = ar->cfg_tx_chainmask;
7968

7969
	if (!test_bit(ATH10K_FW_FEATURE_NO_P2P, ar->normal_mode_fw.fw_file.fw_features))
7970
		ar->hw->wiphy->interface_modes |=
M
Michal Kazior 已提交
7971
			BIT(NL80211_IFTYPE_P2P_DEVICE) |
7972 7973
			BIT(NL80211_IFTYPE_P2P_CLIENT) |
			BIT(NL80211_IFTYPE_P2P_GO);
7974

7975 7976 7977 7978 7979 7980 7981 7982 7983 7984 7985 7986 7987 7988
	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);
7989

7990 7991 7992
	if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
		ieee80211_hw_set(ar->hw, SW_CRYPTO_CONTROL);

7993
	ar->hw->wiphy->features |= NL80211_FEATURE_STATIC_SMPS;
J
Janusz Dziedzic 已提交
7994
	ar->hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
7995

7996
	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
7997
		ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS;
7998 7999

	if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
8000 8001
		ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
		ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
8002 8003 8004 8005 8006 8007
	}

	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);
8008
	ar->hw->sta_data_size = sizeof(struct ath10k_sta);
M
Michal Kazior 已提交
8009
	ar->hw->txq_data_size = sizeof(struct ath10k_txq);
8010 8011 8012

	ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;

8013 8014 8015 8016 8017 8018 8019 8020 8021 8022 8023 8024 8025
	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;
	}

8026 8027 8028
	if (test_bit(WMI_SERVICE_TDLS, ar->wmi.svc_map))
		ar->hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;

8029
	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
M
Michal Kazior 已提交
8030
	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
8031 8032 8033
	ar->hw->wiphy->max_remain_on_channel_duration = 5000;

	ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
8034 8035
	ar->hw->wiphy->features |= NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
				   NL80211_FEATURE_AP_SCAN;
8036

8037 8038
	ar->hw->wiphy->max_ap_assoc_sta = ar->max_num_stations;

8039 8040 8041 8042 8043 8044
	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
8045 8046
	wiphy_ext_feature_set(ar->hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);

8047 8048 8049 8050
	/*
	 * 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
8051 8052 8053 8054 8055 8056 8057
	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;
8058

8059
	switch (ar->running_fw->fw_file.wmi_op_version) {
8060
	case ATH10K_FW_WMI_OP_VERSION_MAIN:
8061 8062 8063
		ar->hw->wiphy->iface_combinations = ath10k_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_if_comb);
8064
		ar->hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
8065
		break;
8066 8067 8068 8069 8070 8071 8072 8073 8074 8075 8076 8077 8078
	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;
8079 8080
	case ATH10K_FW_WMI_OP_VERSION_10_1:
	case ATH10K_FW_WMI_OP_VERSION_10_2:
8081
	case ATH10K_FW_WMI_OP_VERSION_10_2_4:
8082 8083 8084 8085
		ar->hw->wiphy->iface_combinations = ath10k_10x_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_10x_if_comb);
		break;
8086
	case ATH10K_FW_WMI_OP_VERSION_10_4:
8087 8088 8089
		ar->hw->wiphy->iface_combinations = ath10k_10_4_if_comb;
		ar->hw->wiphy->n_iface_combinations =
			ARRAY_SIZE(ath10k_10_4_if_comb);
8090
		break;
8091 8092 8093 8094 8095
	case ATH10K_FW_WMI_OP_VERSION_UNSET:
	case ATH10K_FW_WMI_OP_VERSION_MAX:
		WARN_ON(1);
		ret = -EINVAL;
		goto err_free;
8096
	}
8097

8098 8099
	if (!test_bit(ATH10K_FLAG_RAW_MODE, &ar->dev_flags))
		ar->hw->netdev_features = NETIF_F_HW_CSUM;
8100

8101
	if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED)) {
J
Janusz Dziedzic 已提交
8102 8103 8104 8105 8106 8107
		/* 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)
8108
			ath10k_warn(ar, "failed to initialise DFS pattern detector\n");
J
Janusz Dziedzic 已提交
8109 8110
	}

8111 8112 8113 8114 8115 8116 8117 8118 8119
	/* Current wake_tx_queue implementation imposes a significant
	 * performance penalty in some setups. The tx scheduling code needs
	 * more work anyway so disable the wake_tx_queue unless firmware
	 * supports the pull-push mechanism.
	 */
	if (!test_bit(ATH10K_FW_FEATURE_PEER_FLOW_CONTROL,
		      ar->running_fw->fw_file.fw_features))
		ar->ops->wake_tx_queue = NULL;

8120 8121 8122 8123 8124 8125
	ret = ath10k_mac_init_rd(ar);
	if (ret) {
		ath10k_err(ar, "failed to derive regdom: %d\n", ret);
		goto err_dfs_detector_exit;
	}

8126 8127 8128
	ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
			    ath10k_reg_notifier);
	if (ret) {
8129
		ath10k_err(ar, "failed to initialise regulatory: %i\n", ret);
8130
		goto err_dfs_detector_exit;
8131 8132
	}

8133 8134 8135
	ar->hw->wiphy->cipher_suites = cipher_suites;
	ar->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);

8136 8137
	ret = ieee80211_register_hw(ar->hw);
	if (ret) {
8138
		ath10k_err(ar, "failed to register ieee80211: %d\n", ret);
8139
		goto err_dfs_detector_exit;
8140 8141 8142 8143 8144 8145
	}

	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
8146
			goto err_unregister;
8147 8148 8149
	}

	return 0;
M
Michal Kazior 已提交
8150 8151

err_unregister:
8152
	ieee80211_unregister_hw(ar->hw);
8153 8154

err_dfs_detector_exit:
8155
	if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
8156 8157
		ar->dfs_detector->exit(ar->dfs_detector);

M
Michal Kazior 已提交
8158
err_free:
8159 8160
	kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
	kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
M
Michal Kazior 已提交
8161

8162
	SET_IEEE80211_DEV(ar->hw, NULL);
8163 8164 8165 8166 8167 8168 8169
	return ret;
}

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

8170
	if (IS_ENABLED(CONFIG_ATH10K_DFS_CERTIFIED) && ar->dfs_detector)
J
Janusz Dziedzic 已提交
8171 8172
		ar->dfs_detector->exit(ar->dfs_detector);

8173 8174
	kfree(ar->mac.sbands[NL80211_BAND_2GHZ].channels);
	kfree(ar->mac.sbands[NL80211_BAND_5GHZ].channels);
8175 8176 8177

	SET_IEEE80211_DEV(ar->hw, NULL);
}