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mt76/mt7921/init.c
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Deren WuandFelix Fietkau d6ae3505ac mt76: enable the VHT extended NSS BW feature 
According IEEE Std 802.11-2020, its definition is:
Indicates whether the STA is capable of interpreting the Extended NSS BW
Support subfield of the VHT Capabilities Information field.

Some APs, such as Xiaomi AX6000, would check this one for BW settings.
mt76 driver can get max BW capability only if the this field is confgured
properly.

Reviewed-by: Ryder Lee <[email protected]>
Signed-off-by: Ming Yen Hsieh <[email protected]>
Signed-off-by: Deren Wu <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
2022-06-17 12:14:22 +02:00

327 lines
8.9 KiB
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// SPDX-License-Identifier: ISC
/* Copyright (C) 2020 MediaTek Inc. */
#include <linux/etherdevice.h>
#include "mt7921.h"
#include "mac.h"
#include "mcu.h"
#include "eeprom.h"
static const struct ieee80211_iface_limit if_limits[] = {
{
.max = MT7921_MAX_INTERFACES,
.types = BIT(NL80211_IFTYPE_STATION)
},
{
.max = 1,
.types = BIT(NL80211_IFTYPE_AP)
}
};
static const struct ieee80211_iface_combination if_comb[] = {
{
.limits = if_limits,
.n_limits = ARRAY_SIZE(if_limits),
.max_interfaces = MT7921_MAX_INTERFACES,
.num_different_channels = 1,
.beacon_int_infra_match = true,
}
};
static void
mt7921_regd_notifier(struct wiphy *wiphy,
struct regulatory_request *request)
{
struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
struct mt7921_dev *dev = mt7921_hw_dev(hw);
memcpy(dev->mt76.alpha2, request->alpha2, sizeof(dev->mt76.alpha2));
dev->mt76.region = request->dfs_region;
mt7921_mutex_acquire(dev);
mt76_connac_mcu_set_channel_domain(hw->priv);
mt7921_set_tx_sar_pwr(hw, NULL);
mt7921_mutex_release(dev);
}
static int
mt7921_init_wiphy(struct ieee80211_hw *hw)
{
struct mt7921_phy *phy = mt7921_hw_phy(hw);
struct mt7921_dev *dev = phy->dev;
struct wiphy *wiphy = hw->wiphy;
hw->queues = 4;
hw->max_rx_aggregation_subframes = 64;
hw->max_tx_aggregation_subframes = 128;
hw->netdev_features = NETIF_F_RXCSUM;
hw->radiotap_timestamp.units_pos =
IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US;
phy->slottime = 9;
hw->sta_data_size = sizeof(struct mt7921_sta);
hw->vif_data_size = sizeof(struct mt7921_vif);
wiphy->iface_combinations = if_comb;
wiphy->flags &= ~(WIPHY_FLAG_IBSS_RSN | WIPHY_FLAG_4ADDR_AP |
WIPHY_FLAG_4ADDR_STATION);
wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
BIT(NL80211_IFTYPE_AP);
wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
wiphy->max_scan_ie_len = MT76_CONNAC_SCAN_IE_LEN;
wiphy->max_scan_ssids = 4;
wiphy->max_sched_scan_plan_interval =
MT76_CONNAC_MAX_TIME_SCHED_SCAN_INTERVAL;
wiphy->max_sched_scan_ie_len = IEEE80211_MAX_DATA_LEN;
wiphy->max_sched_scan_ssids = MT76_CONNAC_MAX_SCHED_SCAN_SSID;
wiphy->max_match_sets = MT76_CONNAC_MAX_SCAN_MATCH;
wiphy->max_sched_scan_reqs = 1;
wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
wiphy->reg_notifier = mt7921_regd_notifier;
wiphy->features |= NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SET_SCAN_DWELL);
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_LEGACY);
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HT);
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_VHT);
wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BEACON_RATE_HE);
ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
ieee80211_hw_set(hw, WANT_MONITOR_VIF);
ieee80211_hw_set(hw, SUPPORTS_PS);
ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
if (dev->pm.enable)
ieee80211_hw_set(hw, CONNECTION_MONITOR);
hw->max_tx_fragments = 4;
return 0;
}
static void
mt7921_mac_init_band(struct mt7921_dev *dev, u8 band)
{
mt76_rmw_field(dev, MT_TMAC_CTCR0(band),
MT_TMAC_CTCR0_INS_DDLMT_REFTIME, 0x3f);
mt76_set(dev, MT_TMAC_CTCR0(band),
MT_TMAC_CTCR0_INS_DDLMT_VHT_SMPDU_EN |
MT_TMAC_CTCR0_INS_DDLMT_EN);
mt76_set(dev, MT_WF_RMAC_MIB_TIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band), MT_WF_RMAC_MIB_RXTIME_EN);
/* enable MIB tx-rx time reporting */
mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_TXDUR_EN);
mt76_set(dev, MT_MIB_SCR1(band), MT_MIB_RXDUR_EN);
mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536);
/* disable rx rate report by default due to hw issues */
mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
}
int mt7921_mac_init(struct mt7921_dev *dev)
{
int i;
mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
/* enable hardware de-agg */
mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);
/* enable hardware rx header translation */
mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_RX_HDR_TRANS_EN);
for (i = 0; i < MT7921_WTBL_SIZE; i++)
mt7921_mac_wtbl_update(dev, i,
MT_WTBL_UPDATE_ADM_COUNT_CLEAR);
for (i = 0; i < 2; i++)
mt7921_mac_init_band(dev, i);
dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0));
return mt76_connac_mcu_set_rts_thresh(&dev->mt76, 0x92b, 0);
}
EXPORT_SYMBOL_GPL(mt7921_mac_init);
static int __mt7921_init_hardware(struct mt7921_dev *dev)
{
int ret;
/* force firmware operation mode into normal state,
* which should be set before firmware download stage.
*/
mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
ret = mt7921_mcu_init(dev);
if (ret)
goto out;
mt76_eeprom_override(&dev->mphy);
ret = mt7921_mcu_set_eeprom(dev);
if (ret)
goto out;
ret = mt7921_mac_init(dev);
out:
return ret;
}
static int mt7921_init_hardware(struct mt7921_dev *dev)
{
int ret, i;
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
for (i = 0; i < MT7921_MCU_INIT_RETRY_COUNT; i++) {
ret = __mt7921_init_hardware(dev);
if (!ret)
break;
mt7921_init_reset(dev);
}
if (i == MT7921_MCU_INIT_RETRY_COUNT) {
dev_err(dev->mt76.dev, "hardware init failed\n");
return ret;
}
return 0;
}
static int mt7921_init_wcid(struct mt7921_dev *dev)
{
int idx;
/* Beacon and mgmt frames should occupy wcid 0 */
idx = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7921_WTBL_STA - 1);
if (idx)
return -ENOSPC;
dev->mt76.global_wcid.idx = idx;
dev->mt76.global_wcid.hw_key_idx = -1;
dev->mt76.global_wcid.tx_info |= MT_WCID_TX_INFO_SET;
rcu_assign_pointer(dev->mt76.wcid[idx], &dev->mt76.global_wcid);
return 0;
}
static void mt7921_init_work(struct work_struct *work)
{
struct mt7921_dev *dev = container_of(work, struct mt7921_dev,
init_work);
int ret;
ret = mt7921_init_hardware(dev);
if (ret)
return;
mt76_set_stream_caps(&dev->mphy, true);
mt7921_set_stream_he_caps(&dev->phy);
ret = mt76_register_device(&dev->mt76, true, mt76_rates,
ARRAY_SIZE(mt76_rates));
if (ret) {
dev_err(dev->mt76.dev, "register device failed\n");
return;
}
ret = mt7921_init_debugfs(dev);
if (ret) {
dev_err(dev->mt76.dev, "register debugfs failed\n");
return;
}
/* we support chip reset now */
dev->hw_init_done = true;
mt76_connac_mcu_set_deep_sleep(&dev->mt76, dev->pm.ds_enable);
}
int mt7921_register_device(struct mt7921_dev *dev)
{
struct ieee80211_hw *hw = mt76_hw(dev);
int ret;
dev->phy.dev = dev;
dev->phy.mt76 = &dev->mt76.phy;
dev->mt76.phy.priv = &dev->phy;
dev->mt76.tx_worker.fn = mt7921_tx_worker;
INIT_DELAYED_WORK(&dev->pm.ps_work, mt7921_pm_power_save_work);
INIT_WORK(&dev->pm.wake_work, mt7921_pm_wake_work);
spin_lock_init(&dev->pm.wake.lock);
mutex_init(&dev->pm.mutex);
init_waitqueue_head(&dev->pm.wait);
if (mt76_is_sdio(&dev->mt76))
init_waitqueue_head(&dev->mt76.sdio.wait);
spin_lock_init(&dev->pm.txq_lock);
INIT_DELAYED_WORK(&dev->mphy.mac_work, mt7921_mac_work);
INIT_DELAYED_WORK(&dev->phy.scan_work, mt7921_scan_work);
INIT_DELAYED_WORK(&dev->coredump.work, mt7921_coredump_work);
#if IS_ENABLED(CONFIG_IPV6)
INIT_WORK(&dev->ipv6_ns_work, mt7921_set_ipv6_ns_work);
skb_queue_head_init(&dev->ipv6_ns_list);
#endif
skb_queue_head_init(&dev->phy.scan_event_list);
skb_queue_head_init(&dev->coredump.msg_list);
INIT_LIST_HEAD(&dev->sta_poll_list);
spin_lock_init(&dev->sta_poll_lock);
INIT_WORK(&dev->reset_work, mt7921_mac_reset_work);
INIT_WORK(&dev->init_work, mt7921_init_work);
dev->pm.idle_timeout = MT7921_PM_TIMEOUT;
dev->pm.stats.last_wake_event = jiffies;
dev->pm.stats.last_doze_event = jiffies;
if (!mt76_is_usb(&dev->mt76)) {
dev->pm.enable_user = true;
dev->pm.enable = true;
dev->pm.ds_enable_user = true;
dev->pm.ds_enable = true;
}
if (!mt76_is_mmio(&dev->mt76))
hw->extra_tx_headroom += MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE;
mt7921_init_acpi_sar(dev);
ret = mt7921_init_wcid(dev);
if (ret)
return ret;
ret = mt7921_init_wiphy(hw);
if (ret)
return ret;
dev->mphy.sband_2g.sband.ht_cap.cap |=
IEEE80211_HT_CAP_LDPC_CODING |
IEEE80211_HT_CAP_MAX_AMSDU;
dev->mphy.sband_5g.sband.ht_cap.cap |=
IEEE80211_HT_CAP_LDPC_CODING |
IEEE80211_HT_CAP_MAX_AMSDU;
dev->mphy.sband_5g.sband.vht_cap.cap |=
IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE |
(3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
if (is_mt7922(&dev->mt76))
dev->mphy.sband_5g.sband.vht_cap.cap |=
IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
IEEE80211_VHT_CAP_SHORT_GI_160;
dev->mphy.hw->wiphy->available_antennas_rx = dev->mphy.chainmask;
dev->mphy.hw->wiphy->available_antennas_tx = dev->mphy.chainmask;
queue_work(system_wq, &dev->init_work);
return 0;
}
EXPORT_SYMBOL_GPL(mt7921_register_device);
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