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main.c
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// SPDX-License-Identifier: ISC
/* Copyright (C) 2020 MediaTek Inc. */
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <net/ipv6.h>
#include "mt7921.h"
#include "mcu.h"
static void
mt7921_gen_ppe_thresh(u8 *he_ppet, int nss)
{
u8 i, ppet_bits, ppet_size, ru_bit_mask = 0x7; /* HE80 */
static const u8 ppet16_ppet8_ru3_ru0[] = {0x1c, 0xc7, 0x71};
he_ppet[0] = FIELD_PREP(IEEE80211_PPE_THRES_NSS_MASK, nss - 1) |
FIELD_PREP(IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK,
ru_bit_mask);
ppet_bits = IEEE80211_PPE_THRES_INFO_PPET_SIZE *
nss * hweight8(ru_bit_mask) * 2;
ppet_size = DIV_ROUND_UP(ppet_bits, 8);
for (i = 0; i < ppet_size - 1; i++)
he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3];
he_ppet[i + 1] = ppet16_ppet8_ru3_ru0[i % 3] &
(0xff >> (8 - (ppet_bits - 1) % 8));
}
static int
mt7921_init_he_caps(struct mt7921_phy *phy, enum nl80211_band band,
struct ieee80211_sband_iftype_data *data)
{
int i, idx = 0;
int nss = hweight8(phy->mt76->chainmask);
u16 mcs_map = 0;
for (i = 0; i < 8; i++) {
if (i < nss)
mcs_map |= (IEEE80211_HE_MCS_SUPPORT_0_11 << (i * 2));
else
mcs_map |= (IEEE80211_HE_MCS_NOT_SUPPORTED << (i * 2));
}
for (i = 0; i < NUM_NL80211_IFTYPES; i++) {
struct ieee80211_sta_he_cap *he_cap = &data[idx].he_cap;
struct ieee80211_he_cap_elem *he_cap_elem =
&he_cap->he_cap_elem;
struct ieee80211_he_mcs_nss_supp *he_mcs =
&he_cap->he_mcs_nss_supp;
switch (i) {
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_AP:
break;
default:
continue;
}
data[idx].types_mask = BIT(i);
he_cap->has_he = true;
he_cap_elem->mac_cap_info[0] =
IEEE80211_HE_MAC_CAP0_HTC_HE;
he_cap_elem->mac_cap_info[3] =
IEEE80211_HE_MAC_CAP3_OMI_CONTROL |
IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_EXT_3;
he_cap_elem->mac_cap_info[4] =
IEEE80211_HE_MAC_CAP4_AMSDU_IN_AMPDU;
if (band == NL80211_BAND_2GHZ)
he_cap_elem->phy_cap_info[0] =
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
else
he_cap_elem->phy_cap_info[0] =
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G;
he_cap_elem->phy_cap_info[1] =
IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
he_cap_elem->phy_cap_info[2] =
IEEE80211_HE_PHY_CAP2_NDP_4x_LTF_AND_3_2US |
IEEE80211_HE_PHY_CAP2_STBC_TX_UNDER_80MHZ |
IEEE80211_HE_PHY_CAP2_STBC_RX_UNDER_80MHZ |
IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO |
IEEE80211_HE_PHY_CAP2_UL_MU_PARTIAL_MU_MIMO;
switch (i) {
case NL80211_IFTYPE_AP:
he_cap_elem->mac_cap_info[2] |=
IEEE80211_HE_MAC_CAP2_BSR;
he_cap_elem->mac_cap_info[4] |=
IEEE80211_HE_MAC_CAP4_BQR;
he_cap_elem->mac_cap_info[5] |=
IEEE80211_HE_MAC_CAP5_OM_CTRL_UL_MU_DATA_DIS_RX;
he_cap_elem->phy_cap_info[3] |=
IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
he_cap_elem->phy_cap_info[6] |=
IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
he_cap_elem->phy_cap_info[9] |=
IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU;
break;
case NL80211_IFTYPE_STATION:
he_cap_elem->mac_cap_info[1] |=
IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US;
if (band == NL80211_BAND_2GHZ)
he_cap_elem->phy_cap_info[0] |=
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_2G;
else
he_cap_elem->phy_cap_info[0] |=
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_RU_MAPPING_IN_5G;
he_cap_elem->phy_cap_info[1] |=
IEEE80211_HE_PHY_CAP1_DEVICE_CLASS_A |
IEEE80211_HE_PHY_CAP1_HE_LTF_AND_GI_FOR_HE_PPDUS_0_8US;
he_cap_elem->phy_cap_info[3] |=
IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_QPSK |
IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_QPSK;
he_cap_elem->phy_cap_info[4] |=
IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE |
IEEE80211_HE_PHY_CAP4_BEAMFORMEE_MAX_STS_UNDER_80MHZ_4;
he_cap_elem->phy_cap_info[5] |=
IEEE80211_HE_PHY_CAP5_NG16_SU_FEEDBACK |
IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
he_cap_elem->phy_cap_info[6] |=
IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_42_SU |
IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
IEEE80211_HE_PHY_CAP6_PARTIAL_BW_EXT_RANGE |
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT;
he_cap_elem->phy_cap_info[7] |=
IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_SUPP |
IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI;
he_cap_elem->phy_cap_info[8] |=
IEEE80211_HE_PHY_CAP8_20MHZ_IN_40MHZ_HE_PPDU_IN_2G |
IEEE80211_HE_PHY_CAP8_DCM_MAX_RU_484;
he_cap_elem->phy_cap_info[9] |=
IEEE80211_HE_PHY_CAP9_LONGER_THAN_16_SIGB_OFDM_SYM |
IEEE80211_HE_PHY_CAP9_NON_TRIGGERED_CQI_FEEDBACK |
IEEE80211_HE_PHY_CAP9_TX_1024_QAM_LESS_THAN_242_TONE_RU |
IEEE80211_HE_PHY_CAP9_RX_1024_QAM_LESS_THAN_242_TONE_RU |
IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_COMP_SIGB |
IEEE80211_HE_PHY_CAP9_RX_FULL_BW_SU_USING_MU_WITH_NON_COMP_SIGB;
if (is_mt7922(phy->mt76->dev)) {
he_cap_elem->phy_cap_info[0] |=
IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
he_cap_elem->phy_cap_info[8] |=
IEEE80211_HE_PHY_CAP8_20MHZ_IN_160MHZ_HE_PPDU |
IEEE80211_HE_PHY_CAP8_80MHZ_IN_160MHZ_HE_PPDU;
}
break;
}
he_mcs->rx_mcs_80 = cpu_to_le16(mcs_map);
he_mcs->tx_mcs_80 = cpu_to_le16(mcs_map);
if (is_mt7922(phy->mt76->dev)) {
he_mcs->rx_mcs_160 = cpu_to_le16(mcs_map);
he_mcs->tx_mcs_160 = cpu_to_le16(mcs_map);
}
memset(he_cap->ppe_thres, 0, sizeof(he_cap->ppe_thres));
if (he_cap_elem->phy_cap_info[6] &
IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
mt7921_gen_ppe_thresh(he_cap->ppe_thres, nss);
} else {
he_cap_elem->phy_cap_info[9] |=
IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US;
}
if (band == NL80211_BAND_6GHZ) {
struct ieee80211_supported_band *sband =
&phy->mt76->sband_5g.sband;
struct ieee80211_sta_vht_cap *vht_cap = &sband->vht_cap;
struct ieee80211_sta_ht_cap *ht_cap = &sband->ht_cap;
u32 exp;
u16 cap;
cap = u16_encode_bits(ht_cap->ampdu_density,
IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START);
exp = u32_get_bits(vht_cap->cap,
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK);
cap |= u16_encode_bits(exp,
IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP);
exp = u32_get_bits(vht_cap->cap,
IEEE80211_VHT_CAP_MAX_MPDU_MASK);
cap |= u16_encode_bits(exp,
IEEE80211_HE_6GHZ_CAP_MAX_MPDU_LEN);
if (vht_cap->cap & IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN)
cap |= IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS;
if (vht_cap->cap & IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN)
cap |= IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
data[idx].he_6ghz_capa.capa = cpu_to_le16(cap);
}
idx++;
}
return idx;
}
void mt7921_set_stream_he_caps(struct mt7921_phy *phy)
{
struct ieee80211_sband_iftype_data *data;
struct ieee80211_supported_band *band;
int n;
if (phy->mt76->cap.has_2ghz) {
data = phy->iftype[NL80211_BAND_2GHZ];
n = mt7921_init_he_caps(phy, NL80211_BAND_2GHZ, data);
band = &phy->mt76->sband_2g.sband;
band->iftype_data = data;
band->n_iftype_data = n;
}
if (phy->mt76->cap.has_5ghz) {
data = phy->iftype[NL80211_BAND_5GHZ];
n = mt7921_init_he_caps(phy, NL80211_BAND_5GHZ, data);
band = &phy->mt76->sband_5g.sband;
band->iftype_data = data;
band->n_iftype_data = n;
if (phy->mt76->cap.has_6ghz) {
data = phy->iftype[NL80211_BAND_6GHZ];
n = mt7921_init_he_caps(phy, NL80211_BAND_6GHZ, data);
band = &phy->mt76->sband_6g.sband;
band->iftype_data = data;
band->n_iftype_data = n;
}
}
}
int __mt7921_start(struct mt7921_phy *phy)
{
struct mt76_phy *mphy = phy->mt76;
int err;
err = mt76_connac_mcu_set_mac_enable(mphy->dev, 0, true, false);
if (err)
return err;
err = mt76_connac_mcu_set_channel_domain(mphy);
if (err)
return err;
err = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(SET_RX_PATH));
if (err)
return err;
err = mt7921_set_tx_sar_pwr(mphy->hw, NULL);
if (err)
return err;
mt7921_mac_reset_counters(phy);
set_bit(MT76_STATE_RUNNING, &mphy->state);
ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work,
MT7921_WATCHDOG_TIME);
return 0;
}
EXPORT_SYMBOL_GPL(__mt7921_start);
static int mt7921_start(struct ieee80211_hw *hw)
{
struct mt7921_phy *phy = mt7921_hw_phy(hw);
int err;
mt7921_mutex_acquire(phy->dev);
err = __mt7921_start(phy);
mt7921_mutex_release(phy->dev);
return err;
}
void mt7921_stop(struct ieee80211_hw *hw)
{
struct mt7921_dev *dev = mt7921_hw_dev(hw);
struct mt7921_phy *phy = mt7921_hw_phy(hw);
cancel_delayed_work_sync(&phy->mt76->mac_work);
cancel_delayed_work_sync(&dev->pm.ps_work);
cancel_work_sync(&dev->pm.wake_work);
cancel_work_sync(&dev->reset_work);
mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
mt7921_mutex_acquire(dev);
clear_bit(MT76_STATE_RUNNING, &phy->mt76->state);
mt76_connac_mcu_set_mac_enable(&dev->mt76, 0, false, false);
mt7921_mutex_release(dev);
}
EXPORT_SYMBOL_GPL(mt7921_stop);
static int mt7921_add_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
struct mt7921_dev *dev = mt7921_hw_dev(hw);
struct mt7921_phy *phy = mt7921_hw_phy(hw);
struct mt76_txq *mtxq;
int idx, ret = 0;
mt7921_mutex_acquire(dev);
mvif->mt76.idx = __ffs64(~dev->mt76.vif_mask);
if (mvif->mt76.idx >= MT7921_MAX_INTERFACES) {
ret = -ENOSPC;
goto out;
}
mvif->mt76.omac_idx = mvif->mt76.idx;
mvif->phy = phy;
mvif->mt76.band_idx = 0;
mvif->mt76.wmm_idx = mvif->mt76.idx % MT76_CONNAC_MAX_WMM_SETS;
ret = mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid,
true);
if (ret)
goto out;
dev->mt76.vif_mask |= BIT_ULL(mvif->mt76.idx);
phy->omac_mask |= BIT_ULL(mvif->mt76.omac_idx);
idx = MT7921_WTBL_RESERVED - mvif->mt76.idx;
INIT_LIST_HEAD(&mvif->sta.poll_list);
mvif->sta.wcid.idx = idx;
mvif->sta.wcid.phy_idx = mvif->mt76.band_idx;
mvif->sta.wcid.hw_key_idx = -1;
mvif->sta.wcid.tx_info |= MT_WCID_TX_INFO_SET;
mt76_packet_id_init(&mvif->sta.wcid);
mt7921_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
ewma_rssi_init(&mvif->rssi);
rcu_assign_pointer(dev->mt76.wcid[idx], &mvif->sta.wcid);
if (vif->txq) {
mtxq = (struct mt76_txq *)vif->txq->drv_priv;
mtxq->wcid = idx;
}
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
out:
mt7921_mutex_release(dev);
return ret;
}
static void mt7921_remove_interface(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
struct mt7921_sta *msta = &mvif->sta;
struct mt7921_dev *dev = mt7921_hw_dev(hw);
struct mt7921_phy *phy = mt7921_hw_phy(hw);
int idx = msta->wcid.idx;
mt7921_mutex_acquire(dev);
mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, false);
rcu_assign_pointer(dev->mt76.wcid[idx], NULL);
dev->mt76.vif_mask &= ~BIT_ULL(mvif->mt76.idx);
phy->omac_mask &= ~BIT_ULL(mvif->mt76.omac_idx);
mt7921_mutex_release(dev);
spin_lock_bh(&dev->sta_poll_lock);
if (!list_empty(&msta->poll_list))
list_del_init(&msta->poll_list);
spin_unlock_bh(&dev->sta_poll_lock);
mt76_packet_id_flush(&dev->mt76, &msta->wcid);
}
static int mt7921_set_channel(struct mt7921_phy *phy)
{
struct mt7921_dev *dev = phy->dev;
int ret;
cancel_delayed_work_sync(&phy->mt76->mac_work);
mt7921_mutex_acquire(dev);
set_bit(MT76_RESET, &phy->mt76->state);
mt76_set_channel(phy->mt76);
ret = mt7921_mcu_set_chan_info(phy, MCU_EXT_CMD(CHANNEL_SWITCH));
if (ret)
goto out;
mt7921_mac_set_timing(phy);
mt7921_mac_reset_counters(phy);
phy->noise = 0;
out:
clear_bit(MT76_RESET, &phy->mt76->state);
mt7921_mutex_release(dev);
mt76_worker_schedule(&dev->mt76.tx_worker);
ieee80211_queue_delayed_work(phy->mt76->hw, &phy->mt76->mac_work,
MT7921_WATCHDOG_TIME);
return ret;
}
static int mt7921_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 mt7921_dev *dev = mt7921_hw_dev(hw);
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
struct mt7921_sta *msta = sta ? (struct mt7921_sta *)sta->drv_priv :
&mvif->sta;
struct mt76_wcid *wcid = &msta->wcid;
u8 *wcid_keyidx = &wcid->hw_key_idx;
int idx = key->keyidx, err = 0;
/* The hardware does not support per-STA RX GTK, fallback
* to software mode for these.
*/
if ((vif->type == NL80211_IFTYPE_ADHOC ||
vif->type == NL80211_IFTYPE_MESH_POINT) &&
(key->cipher == WLAN_CIPHER_SUITE_TKIP ||
key->cipher == WLAN_CIPHER_SUITE_CCMP) &&
!(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
return -EOPNOTSUPP;
/* fall back to sw encryption for unsupported ciphers */
switch (key->cipher) {
case WLAN_CIPHER_SUITE_AES_CMAC:
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE;
wcid_keyidx = &wcid->hw_key_idx2;
break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
if (!mvif->wep_sta)
return -EOPNOTSUPP;
break;
case WLAN_CIPHER_SUITE_TKIP:
case WLAN_CIPHER_SUITE_CCMP:
case WLAN_CIPHER_SUITE_CCMP_256:
case WLAN_CIPHER_SUITE_GCMP:
case WLAN_CIPHER_SUITE_GCMP_256:
case WLAN_CIPHER_SUITE_SMS4:
break;
default:
return -EOPNOTSUPP;
}
mt7921_mutex_acquire(dev);
if (cmd == SET_KEY)
*wcid_keyidx = idx;
else if (idx == *wcid_keyidx)
*wcid_keyidx = -1;
else
goto out;
mt76_wcid_key_setup(&dev->mt76, wcid,
cmd == SET_KEY ? key : NULL);
err = mt76_connac_mcu_add_key(&dev->mt76, vif, &msta->bip,
key, MCU_UNI_CMD(STA_REC_UPDATE),
&msta->wcid, cmd);
if (err)
goto out;
if (key->cipher == WLAN_CIPHER_SUITE_WEP104 ||
key->cipher == WLAN_CIPHER_SUITE_WEP40)
err = mt76_connac_mcu_add_key(&dev->mt76, vif,
&mvif->wep_sta->bip,
key, MCU_UNI_CMD(STA_REC_UPDATE),
&mvif->wep_sta->wcid, cmd);
out:
mt7921_mutex_release(dev);
return err;
}
static void
mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
struct mt7921_dev *dev = priv;
struct ieee80211_hw *hw = mt76_hw(dev);
bool pm_enable = dev->pm.enable;
int err;
err = mt7921_mcu_set_beacon_filter(dev, vif, pm_enable);
if (err < 0)
return;
if (pm_enable) {
vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER;
ieee80211_hw_set(hw, CONNECTION_MONITOR);
} else {
vif->driver_flags &= ~IEEE80211_VIF_BEACON_FILTER;
__clear_bit(IEEE80211_HW_CONNECTION_MONITOR, hw->flags);
}
}
static void
mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
struct mt7921_dev *dev = priv;
struct ieee80211_hw *hw = mt76_hw(dev);
struct mt76_connac_pm *pm = &dev->pm;
bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
mt7921_mcu_set_sniffer(dev, vif, monitor);
pm->enable = pm->enable_user && !monitor;
pm->ds_enable = pm->ds_enable_user && !monitor;
mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
if (monitor)
mt7921_mcu_set_beacon_filter(dev, vif, false);
}
void mt7921_set_runtime_pm(struct mt7921_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
struct mt76_connac_pm *pm = &dev->pm;
bool monitor = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
pm->enable = pm->enable_user && !monitor;
ieee80211_iterate_active_interfaces(hw,
IEEE80211_IFACE_ITER_RESUME_ALL,
mt7921_pm_interface_iter, dev);
pm->ds_enable = pm->ds_enable_user && !monitor;
mt76_connac_mcu_set_deep_sleep(&dev->mt76, pm->ds_enable);
}
static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
{
struct mt7921_dev *dev = mt7921_hw_dev(hw);
struct mt7921_phy *phy = mt7921_hw_phy(hw);
int ret = 0;
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
ieee80211_stop_queues(hw);
ret = mt7921_set_channel(phy);
if (ret)
return ret;
ieee80211_wake_queues(hw);
}
mt7921_mutex_acquire(dev);
if (changed & IEEE80211_CONF_CHANGE_POWER) {
ret = mt7921_set_tx_sar_pwr(hw, NULL);
if (ret)
goto out;
}
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
ieee80211_iterate_active_interfaces(hw,
IEEE80211_IFACE_ITER_RESUME_ALL,
mt7921_sniffer_interface_iter, dev);
dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0));
}
out:
mt7921_mutex_release(dev);
return ret;
}
static int
mt7921_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
const struct ieee80211_tx_queue_params *params)
{
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
/* no need to update right away, we'll get BSS_CHANGED_QOS */
queue = mt76_connac_lmac_mapping(queue);
mvif->queue_params[queue] = *params;
return 0;
}
static void mt7921_configure_filter(struct ieee80211_hw *hw,
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast)
{
struct mt7921_dev *dev = mt7921_hw_dev(hw);
u32 ctl_flags = MT_WF_RFCR1_DROP_ACK |
MT_WF_RFCR1_DROP_BF_POLL |
MT_WF_RFCR1_DROP_BA |
MT_WF_RFCR1_DROP_CFEND |
MT_WF_RFCR1_DROP_CFACK;
u32 flags = 0;
#define MT76_FILTER(_flag, _hw) do { \
flags |= *total_flags & FIF_##_flag; \
dev->mt76.rxfilter &= ~(_hw); \
dev->mt76.rxfilter |= !(flags & FIF_##_flag) * (_hw); \
} while (0)
mt7921_mutex_acquire(dev);
dev->mt76.rxfilter &= ~(MT_WF_RFCR_DROP_OTHER_BSS |
MT_WF_RFCR_DROP_OTHER_BEACON |
MT_WF_RFCR_DROP_FRAME_REPORT |
MT_WF_RFCR_DROP_PROBEREQ |
MT_WF_RFCR_DROP_MCAST_FILTERED |
MT_WF_RFCR_DROP_MCAST |
MT_WF_RFCR_DROP_BCAST |
MT_WF_RFCR_DROP_DUPLICATE |
MT_WF_RFCR_DROP_A2_BSSID |
MT_WF_RFCR_DROP_UNWANTED_CTL |
MT_WF_RFCR_DROP_STBC_MULTI);
MT76_FILTER(OTHER_BSS, MT_WF_RFCR_DROP_OTHER_TIM |
MT_WF_RFCR_DROP_A3_MAC |
MT_WF_RFCR_DROP_A3_BSSID);
MT76_FILTER(FCSFAIL, MT_WF_RFCR_DROP_FCSFAIL);
MT76_FILTER(CONTROL, MT_WF_RFCR_DROP_CTS |
MT_WF_RFCR_DROP_RTS |
MT_WF_RFCR_DROP_CTL_RSV |
MT_WF_RFCR_DROP_NDPA);
*total_flags = flags;
mt76_wr(dev, MT_WF_RFCR(0), dev->mt76.rxfilter);
if (*total_flags & FIF_CONTROL)
mt76_clear(dev, MT_WF_RFCR1(0), ctl_flags);
else
mt76_set(dev, MT_WF_RFCR1(0), ctl_flags);
mt7921_mutex_release(dev);
}
static void mt7921_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
u32 changed)
{
struct mt7921_phy *phy = mt7921_hw_phy(hw);
struct mt7921_dev *dev = mt7921_hw_dev(hw);
mt7921_mutex_acquire(dev);
if (changed & BSS_CHANGED_ERP_SLOT) {
int slottime = info->use_short_slot ? 9 : 20;
if (slottime != phy->slottime) {
phy->slottime = slottime;
mt7921_mac_set_timing(phy);
}
}
if (changed & (BSS_CHANGED_BEACON |
BSS_CHANGED_BEACON_ENABLED))
mt7921_mcu_uni_add_beacon_offload(dev, hw, vif,
info->enable_beacon);
/* ensure that enable txcmd_mode after bss_info */
if (changed & (BSS_CHANGED_QOS | BSS_CHANGED_BEACON_ENABLED))
mt7921_mcu_set_tx(dev, vif);
if (changed & BSS_CHANGED_PS)
mt7921_mcu_uni_bss_ps(dev, vif);
if (changed & BSS_CHANGED_ASSOC) {
mt7921_mcu_sta_update(dev, NULL, vif, true,
MT76_STA_INFO_STATE_ASSOC);
mt7921_mcu_set_beacon_filter(dev, vif, info->assoc);
}
if (changed & BSS_CHANGED_ARP_FILTER) {
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
mt76_connac_mcu_update_arp_filter(&dev->mt76, &mvif->mt76,
info);
}
mt7921_mutex_release(dev);
}
int mt7921_mac_sta_add(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
int ret, idx;
idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
if (idx < 0)
return -ENOSPC;
INIT_LIST_HEAD(&msta->poll_list);
msta->vif = mvif;
msta->wcid.sta = 1;
msta->wcid.idx = idx;
msta->wcid.phy_idx = mvif->mt76.band_idx;
msta->wcid.tx_info |= MT_WCID_TX_INFO_SET;
msta->last_txs = jiffies;
ret = mt76_connac_pm_wake(&dev->mphy, &dev->pm);
if (ret)
return ret;
if (vif->type == NL80211_IFTYPE_STATION)
mvif->wep_sta = msta;
mt7921_mac_wtbl_update(dev, idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
ret = mt7921_mcu_sta_update(dev, sta, vif, true,
MT76_STA_INFO_STATE_NONE);
if (ret)
return ret;
mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
return 0;
}
EXPORT_SYMBOL_GPL(mt7921_mac_sta_add);
void mt7921_mac_sta_assoc(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
mt7921_mutex_acquire(dev);
if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
mt76_connac_mcu_uni_add_bss(&dev->mphy, vif, &mvif->sta.wcid,
true);
mt7921_mac_wtbl_update(dev, msta->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac));
mt7921_mcu_sta_update(dev, sta, vif, true, MT76_STA_INFO_STATE_ASSOC);
mt7921_mutex_release(dev);
}
EXPORT_SYMBOL_GPL(mt7921_mac_sta_assoc);
void mt7921_mac_sta_remove(struct mt76_dev *mdev, struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
mt76_connac_free_pending_tx_skbs(&dev->pm, &msta->wcid);
mt76_connac_pm_wake(&dev->mphy, &dev->pm);
mt7921_mcu_sta_update(dev, sta, vif, false, MT76_STA_INFO_STATE_NONE);
mt7921_mac_wtbl_update(dev, msta->wcid.idx,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
if (vif->type == NL80211_IFTYPE_STATION) {
struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv;
mvif->wep_sta = NULL;
ewma_rssi_init(&mvif->rssi);
if (!sta->tdls)
mt76_connac_mcu_uni_add_bss(&dev->mphy, vif,
&mvif->sta.wcid, false);
}
spin_lock_bh(&dev->sta_poll_lock);
if (!list_empty(&msta->poll_list))
list_del_init(&msta->poll_list);
spin_unlock_bh(&dev->sta_poll_lock);
mt76_connac_power_save_sched(&dev->mphy, &dev->pm);
}
EXPORT_SYMBOL_GPL(mt7921_mac_sta_remove);
void mt7921_tx_worker(struct mt76_worker *w)
{
struct mt7921_dev *dev = container_of(w, struct mt7921_dev,
mt76.tx_worker);
if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
queue_work(dev->mt76.wq, &dev->pm.wake_work);
return;
}
mt76_txq_schedule_all(&dev->mphy);
mt76_connac_pm_unref(&dev->mphy, &dev->pm);
}
static void mt7921_tx(struct ieee80211_hw *hw,
struct ieee80211_tx_control *control,
struct sk_buff *skb)
{
struct mt7921_dev *dev = mt7921_hw_dev(hw);
struct mt76_phy *mphy = hw->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_vif *vif = info->control.vif;
struct mt76_wcid *wcid = &dev->mt76.global_wcid;
int qid;
if (control->sta) {
struct mt7921_sta *sta;
sta = (struct mt7921_sta *)control->sta->drv_priv;
wcid = &sta->wcid;
}
if (vif && !control->sta) {
struct mt7921_vif *mvif;
mvif = (struct mt7921_vif *)vif->drv_priv;
wcid = &mvif->sta.wcid;
}
if (mt76_connac_pm_ref(mphy, &dev->pm)) {
mt76_tx(mphy, control->sta, wcid, skb);
mt76_connac_pm_unref(mphy, &dev->pm);
return;
}
qid = skb_get_queue_mapping(skb);
if (qid >= MT_TXQ_PSD) {
qid = IEEE80211_AC_BE;
skb_set_queue_mapping(skb, qid);
}
mt76_connac_pm_queue_skb(hw, &dev->pm, wcid, skb);
}
static int mt7921_set_rts_threshold(struct ieee80211_hw *hw, u32 val)
{
struct mt7921_dev *dev = mt7921_hw_dev(hw);
mt7921_mutex_acquire(dev);
mt76_connac_mcu_set_rts_thresh(&dev->mt76, val, 0);
mt7921_mutex_release(dev);
return 0;
}
static int
mt7921_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_ampdu_params *params)
{
enum ieee80211_ampdu_mlme_action action = params->action;
struct mt7921_dev *dev = mt7921_hw_dev(hw);
struct ieee80211_sta *sta = params->sta;
struct ieee80211_txq *txq = sta->txq[params->tid];
struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv;
u16 tid = params->tid;
u16 ssn = params->ssn;
struct mt76_txq *mtxq;
int ret = 0;
if (!txq)
return -EINVAL;
mtxq = (struct mt76_txq *)txq->drv_priv;
mt7921_mutex_acquire(dev);
switch (action) {
case IEEE80211_AMPDU_RX_START:
mt76_rx_aggr_start(&dev->mt76, &msta->wcid, tid, ssn,
params->buf_size);
mt7921_mcu_uni_rx_ba(dev, params, true);
break;
case IEEE80211_AMPDU_RX_STOP:
mt76_rx_aggr_stop(&dev->mt76, &msta->wcid, tid);
mt7921_mcu_uni_rx_ba(dev, params, false);
break;
case IEEE80211_AMPDU_TX_OPERATIONAL:
mtxq->aggr = true;
mtxq->send_bar = false;
mt7921_mcu_uni_tx_ba(dev, params, true);
break;
case IEEE80211_AMPDU_TX_STOP_FLUSH:
case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
mtxq->aggr = false;
clear_bit(tid, &msta->ampdu_state);
mt7921_mcu_uni_tx_ba(dev, params, false);
break;
case IEEE80211_AMPDU_TX_START:
set_bit(tid, &msta->ampdu_state);
ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
break;
case IEEE80211_AMPDU_TX_STOP_CONT:
mtxq->aggr = false;
clear_bit(tid, &msta->ampdu_state);
mt7921_mcu_uni_tx_ba(dev, params, false);
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
break;
}
mt7921_mutex_release(dev);
return ret;
}
static int mt7921_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 mt7921_dev *dev = mt7921_hw_dev(hw);
if (dev->pm.ds_enable) {
mt7921_mutex_acquire(dev);
mt76_connac_sta_state_dp(&dev->mt76, old_state, new_state);
mt7921_mutex_release(dev);
}
return mt76_sta_state(hw, vif, sta, old_state, new_state);
}
static int
mt7921_get_stats(struct ieee80211_hw *hw,
struct ieee80211_low_level_stats *stats)
{
struct mt7921_phy *phy = mt7921_hw_phy(hw);
struct mib_stats *mib = &phy->mib;
mt7921_mutex_acquire(phy->dev);
stats->dot11RTSSuccessCount = mib->rts_cnt;
stats->dot11RTSFailureCount = mib->rts_retries_cnt;
stats->dot11FCSErrorCount = mib->fcs_err_cnt;
stats->dot11ACKFailureCount = mib->ack_fail_cnt;
mt7921_mutex_release(phy->dev);
return 0;
}
static const char mt7921_gstrings_stats[][ETH_GSTRING_LEN] = {
/* tx counters */
"tx_ampdu_cnt",
"tx_mpdu_attempts",
"tx_mpdu_success",
"tx_pkt_ebf_cnt",
"tx_pkt_ibf_cnt",
"tx_ampdu_len:0-1",
"tx_ampdu_len:2-10",
"tx_ampdu_len:11-19",
"tx_ampdu_len:20-28",
"tx_ampdu_len:29-37",
"tx_ampdu_len:38-46",
"tx_ampdu_len:47-55",
"tx_ampdu_len:56-79",
"tx_ampdu_len:80-103",
"tx_ampdu_len:104-127",
"tx_ampdu_len:128-151",
"tx_ampdu_len:152-175",
"tx_ampdu_len:176-199",
"tx_ampdu_len:200-223",
"tx_ampdu_len:224-247",
"ba_miss_count",
"tx_beamformer_ppdu_iBF",
"tx_beamformer_ppdu_eBF",
"tx_beamformer_rx_feedback_all",
"tx_beamformer_rx_feedback_he",
"tx_beamformer_rx_feedback_vht",
"tx_beamformer_rx_feedback_ht",
"tx_msdu_pack_1",
"tx_msdu_pack_2",
"tx_msdu_pack_3",
"tx_msdu_pack_4",
"tx_msdu_pack_5",
"tx_msdu_pack_6",
"tx_msdu_pack_7",
"tx_msdu_pack_8",
/* rx counters */
"rx_mpdu_cnt",
"rx_ampdu_cnt",
"rx_ampdu_bytes_cnt",
"rx_ba_cnt",
/* per vif counters */
"v_tx_mode_cck",
"v_tx_mode_ofdm",
"v_tx_mode_ht",
"v_tx_mode_ht_gf",
"v_tx_mode_vht",
"v_tx_mode_he_su",
"v_tx_mode_he_ext_su",