diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7915/mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7915/mac.c | 2462 |
1 files changed, 2462 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mac.c b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c new file mode 100644 index 000000000..97ca55d28 --- /dev/null +++ b/drivers/net/wireless/mediatek/mt76/mt7915/mac.c @@ -0,0 +1,2462 @@ +// SPDX-License-Identifier: ISC +/* Copyright (C) 2020 MediaTek Inc. */ + +#include <linux/etherdevice.h> +#include <linux/timekeeping.h> +#include "coredump.h" +#include "mt7915.h" +#include "../dma.h" +#include "mac.h" +#include "mcu.h" + +#define to_rssi(field, rcpi) ((FIELD_GET(field, rcpi) - 220) / 2) + +static const struct mt7915_dfs_radar_spec etsi_radar_specs = { + .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, + .radar_pattern = { + [5] = { 1, 0, 6, 32, 28, 0, 990, 5010, 17, 1, 1 }, + [6] = { 1, 0, 9, 32, 28, 0, 615, 5010, 27, 1, 1 }, + [7] = { 1, 0, 15, 32, 28, 0, 240, 445, 27, 1, 1 }, + [8] = { 1, 0, 12, 32, 28, 0, 240, 510, 42, 1, 1 }, + [9] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 12, 32, 28, { }, 126 }, + [10] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 15, 32, 24, { }, 126 }, + [11] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 18, 32, 28, { }, 54 }, + [12] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 27, 32, 24, { }, 54 }, + }, +}; + +static const struct mt7915_dfs_radar_spec fcc_radar_specs = { + .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, + .radar_pattern = { + [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 }, + [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 }, + [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 }, + [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 }, + [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 }, + }, +}; + +static const struct mt7915_dfs_radar_spec jp_radar_specs = { + .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, + .radar_pattern = { + [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 }, + [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 }, + [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 }, + [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 }, + [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 }, + [13] = { 1, 0, 7, 32, 28, 0, 3836, 3856, 14, 1, 1 }, + [14] = { 1, 0, 6, 32, 28, 0, 615, 5010, 110, 1, 1 }, + [15] = { 1, 1, 0, 0, 0, 0, 15, 5010, 110, 0, 0, 12, 32, 28 }, + }, +}; + +static struct mt76_wcid *mt7915_rx_get_wcid(struct mt7915_dev *dev, + u16 idx, bool unicast) +{ + struct mt7915_sta *sta; + struct mt76_wcid *wcid; + + if (idx >= ARRAY_SIZE(dev->mt76.wcid)) + return NULL; + + wcid = rcu_dereference(dev->mt76.wcid[idx]); + if (unicast || !wcid) + return wcid; + + if (!wcid->sta) + return NULL; + + sta = container_of(wcid, struct mt7915_sta, wcid); + if (!sta->vif) + return NULL; + + return &sta->vif->sta.wcid; +} + +void mt7915_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps) +{ +} + +bool mt7915_mac_wtbl_update(struct mt7915_dev *dev, int idx, u32 mask) +{ + mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX, + FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask); + + return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, + 0, 5000); +} + +u32 mt7915_mac_wtbl_lmac_addr(struct mt7915_dev *dev, u16 wcid, u8 dw) +{ + mt76_wr(dev, MT_WTBLON_TOP_WDUCR, + FIELD_PREP(MT_WTBLON_TOP_WDUCR_GROUP, (wcid >> 7))); + + return MT_WTBL_LMAC_OFFS(wcid, dw); +} + +static void mt7915_mac_sta_poll(struct mt7915_dev *dev) +{ + static const u8 ac_to_tid[] = { + [IEEE80211_AC_BE] = 0, + [IEEE80211_AC_BK] = 1, + [IEEE80211_AC_VI] = 4, + [IEEE80211_AC_VO] = 6 + }; + struct ieee80211_sta *sta; + struct mt7915_sta *msta; + struct rate_info *rate; + u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS]; + LIST_HEAD(sta_poll_list); + int i; + + spin_lock_bh(&dev->sta_poll_lock); + list_splice_init(&dev->sta_poll_list, &sta_poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + + rcu_read_lock(); + + while (true) { + bool clear = false; + u32 addr, val; + u16 idx; + s8 rssi[4]; + u8 bw; + + spin_lock_bh(&dev->sta_poll_lock); + if (list_empty(&sta_poll_list)) { + spin_unlock_bh(&dev->sta_poll_lock); + break; + } + msta = list_first_entry(&sta_poll_list, + struct mt7915_sta, poll_list); + list_del_init(&msta->poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + + idx = msta->wcid.idx; + + /* refresh peer's airtime reporting */ + addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 20); + + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + u32 tx_last = msta->airtime_ac[i]; + u32 rx_last = msta->airtime_ac[i + 4]; + + msta->airtime_ac[i] = mt76_rr(dev, addr); + msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4); + + tx_time[i] = msta->airtime_ac[i] - tx_last; + rx_time[i] = msta->airtime_ac[i + 4] - rx_last; + + if ((tx_last | rx_last) & BIT(30)) + clear = true; + + addr += 8; + } + + if (clear) { + mt7915_mac_wtbl_update(dev, idx, + MT_WTBL_UPDATE_ADM_COUNT_CLEAR); + memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac)); + } + + if (!msta->wcid.sta) + continue; + + sta = container_of((void *)msta, struct ieee80211_sta, + drv_priv); + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + u8 queue = mt76_connac_lmac_mapping(i); + u32 tx_cur = tx_time[queue]; + u32 rx_cur = rx_time[queue]; + u8 tid = ac_to_tid[i]; + + if (!tx_cur && !rx_cur) + continue; + + ieee80211_sta_register_airtime(sta, tid, tx_cur, + rx_cur); + } + + /* + * We don't support reading GI info from txs packets. + * For accurate tx status reporting and AQL improvement, + * we need to make sure that flags match so polling GI + * from per-sta counters directly. + */ + rate = &msta->wcid.rate; + addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 7); + val = mt76_rr(dev, addr); + + switch (rate->bw) { + case RATE_INFO_BW_160: + bw = IEEE80211_STA_RX_BW_160; + break; + case RATE_INFO_BW_80: + bw = IEEE80211_STA_RX_BW_80; + break; + case RATE_INFO_BW_40: + bw = IEEE80211_STA_RX_BW_40; + break; + default: + bw = IEEE80211_STA_RX_BW_20; + break; + } + + if (rate->flags & RATE_INFO_FLAGS_HE_MCS) { + u8 offs = 24 + 2 * bw; + + rate->he_gi = (val & (0x3 << offs)) >> offs; + } else if (rate->flags & + (RATE_INFO_FLAGS_VHT_MCS | RATE_INFO_FLAGS_MCS)) { + if (val & BIT(12 + bw)) + rate->flags |= RATE_INFO_FLAGS_SHORT_GI; + else + rate->flags &= ~RATE_INFO_FLAGS_SHORT_GI; + } + + /* get signal strength of resp frames (CTS/BA/ACK) */ + addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 30); + val = mt76_rr(dev, addr); + + rssi[0] = to_rssi(GENMASK(7, 0), val); + rssi[1] = to_rssi(GENMASK(15, 8), val); + rssi[2] = to_rssi(GENMASK(23, 16), val); + rssi[3] = to_rssi(GENMASK(31, 14), val); + + msta->ack_signal = + mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi); + + ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal); + } + + rcu_read_unlock(); +} + +void mt7915_mac_enable_rtscts(struct mt7915_dev *dev, + struct ieee80211_vif *vif, bool enable) +{ + struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; + u32 addr; + + addr = mt7915_mac_wtbl_lmac_addr(dev, mvif->sta.wcid.idx, 5); + if (enable) + mt76_set(dev, addr, BIT(5)); + else + mt76_clear(dev, addr, BIT(5)); +} + +static void +mt7915_wed_check_ppe(struct mt7915_dev *dev, struct mt76_queue *q, + struct mt7915_sta *msta, struct sk_buff *skb, + u32 info) +{ + struct ieee80211_vif *vif; + struct wireless_dev *wdev; + + if (!msta || !msta->vif) + return; + + if (!mt76_queue_is_wed_rx(q)) + return; + + if (!(info & MT_DMA_INFO_PPE_VLD)) + return; + + vif = container_of((void *)msta->vif, struct ieee80211_vif, + drv_priv); + wdev = ieee80211_vif_to_wdev(vif); + skb->dev = wdev->netdev; + + mtk_wed_device_ppe_check(&dev->mt76.mmio.wed, skb, + FIELD_GET(MT_DMA_PPE_CPU_REASON, info), + FIELD_GET(MT_DMA_PPE_ENTRY, info)); +} + +static int +mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb, + enum mt76_rxq_id q, u32 *info) +{ + struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; + struct mt76_phy *mphy = &dev->mt76.phy; + struct mt7915_phy *phy = &dev->phy; + struct ieee80211_supported_band *sband; + __le32 *rxd = (__le32 *)skb->data; + __le32 *rxv = NULL; + u32 rxd0 = le32_to_cpu(rxd[0]); + u32 rxd1 = le32_to_cpu(rxd[1]); + u32 rxd2 = le32_to_cpu(rxd[2]); + u32 rxd3 = le32_to_cpu(rxd[3]); + u32 rxd4 = le32_to_cpu(rxd[4]); + u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; + bool unicast, insert_ccmp_hdr = false; + u8 remove_pad, amsdu_info; + u8 mode = 0, qos_ctl = 0; + struct mt7915_sta *msta = NULL; + u32 csum_status = *(u32 *)skb->cb; + bool hdr_trans; + u16 hdr_gap; + u16 seq_ctrl = 0; + __le16 fc = 0; + int idx; + + memset(status, 0, sizeof(*status)); + + if ((rxd1 & MT_RXD1_NORMAL_BAND_IDX) && !phy->mt76->band_idx) { + mphy = dev->mt76.phys[MT_BAND1]; + if (!mphy) + return -EINVAL; + + phy = mphy->priv; + status->phy_idx = 1; + } + + if (!test_bit(MT76_STATE_RUNNING, &mphy->state)) + return -EINVAL; + + if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR) + return -EINVAL; + + hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS; + if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM)) + return -EINVAL; + + /* ICV error or CCMP/BIP/WPI MIC error */ + if (rxd1 & MT_RXD1_NORMAL_ICV_ERR) + status->flag |= RX_FLAG_ONLY_MONITOR; + + unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; + idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); + status->wcid = mt7915_rx_get_wcid(dev, idx, unicast); + + if (status->wcid) { + msta = container_of(status->wcid, struct mt7915_sta, wcid); + spin_lock_bh(&dev->sta_poll_lock); + if (list_empty(&msta->poll_list)) + list_add_tail(&msta->poll_list, &dev->sta_poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + } + + status->freq = mphy->chandef.chan->center_freq; + status->band = mphy->chandef.chan->band; + if (status->band == NL80211_BAND_5GHZ) + sband = &mphy->sband_5g.sband; + else if (status->band == NL80211_BAND_6GHZ) + sband = &mphy->sband_6g.sband; + else + sband = &mphy->sband_2g.sband; + + if (!sband->channels) + return -EINVAL; + + if ((rxd0 & csum_mask) == csum_mask && + !(csum_status & (BIT(0) | BIT(2) | BIT(3)))) + skb->ip_summed = CHECKSUM_UNNECESSARY; + + if (rxd1 & MT_RXD1_NORMAL_FCS_ERR) + status->flag |= RX_FLAG_FAILED_FCS_CRC; + + if (rxd1 & MT_RXD1_NORMAL_TKIP_MIC_ERR) + status->flag |= RX_FLAG_MMIC_ERROR; + + if (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1) != 0 && + !(rxd1 & (MT_RXD1_NORMAL_CLM | MT_RXD1_NORMAL_CM))) { + status->flag |= RX_FLAG_DECRYPTED; + status->flag |= RX_FLAG_IV_STRIPPED; + status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED; + } + + remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2); + + if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR) + return -EINVAL; + + rxd += 6; + if (rxd1 & MT_RXD1_NORMAL_GROUP_4) { + u32 v0 = le32_to_cpu(rxd[0]); + u32 v2 = le32_to_cpu(rxd[2]); + + fc = cpu_to_le16(FIELD_GET(MT_RXD6_FRAME_CONTROL, v0)); + qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, v2); + seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2); + + rxd += 4; + if ((u8 *)rxd - skb->data >= skb->len) + return -EINVAL; + } + + if (rxd1 & MT_RXD1_NORMAL_GROUP_1) { + u8 *data = (u8 *)rxd; + + if (status->flag & RX_FLAG_DECRYPTED) { + switch (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1)) { + case MT_CIPHER_AES_CCMP: + case MT_CIPHER_CCMP_CCX: + case MT_CIPHER_CCMP_256: + insert_ccmp_hdr = + FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2); + fallthrough; + case MT_CIPHER_TKIP: + case MT_CIPHER_TKIP_NO_MIC: + case MT_CIPHER_GCMP: + case MT_CIPHER_GCMP_256: + status->iv[0] = data[5]; + status->iv[1] = data[4]; + status->iv[2] = data[3]; + status->iv[3] = data[2]; + status->iv[4] = data[1]; + status->iv[5] = data[0]; + break; + default: + break; + } + } + rxd += 4; + if ((u8 *)rxd - skb->data >= skb->len) + return -EINVAL; + } + + if (rxd1 & MT_RXD1_NORMAL_GROUP_2) { + status->timestamp = le32_to_cpu(rxd[0]); + status->flag |= RX_FLAG_MACTIME_START; + + if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) { + status->flag |= RX_FLAG_AMPDU_DETAILS; + + /* all subframes of an A-MPDU have the same timestamp */ + if (phy->rx_ampdu_ts != status->timestamp) { + if (!++phy->ampdu_ref) + phy->ampdu_ref++; + } + phy->rx_ampdu_ts = status->timestamp; + + status->ampdu_ref = phy->ampdu_ref; + } + + rxd += 2; + if ((u8 *)rxd - skb->data >= skb->len) + return -EINVAL; + } + + /* RXD Group 3 - P-RXV */ + if (rxd1 & MT_RXD1_NORMAL_GROUP_3) { + u32 v0, v1; + int ret; + + rxv = rxd; + rxd += 2; + if ((u8 *)rxd - skb->data >= skb->len) + return -EINVAL; + + v0 = le32_to_cpu(rxv[0]); + v1 = le32_to_cpu(rxv[1]); + + if (v0 & MT_PRXV_HT_AD_CODE) + status->enc_flags |= RX_ENC_FLAG_LDPC; + + status->chains = mphy->antenna_mask; + status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v1); + status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1); + status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1); + status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1); + + /* RXD Group 5 - C-RXV */ + if (rxd1 & MT_RXD1_NORMAL_GROUP_5) { + rxd += 18; + if ((u8 *)rxd - skb->data >= skb->len) + return -EINVAL; + } + + if (!is_mt7915(&dev->mt76) || (rxd1 & MT_RXD1_NORMAL_GROUP_5)) { + ret = mt76_connac2_mac_fill_rx_rate(&dev->mt76, status, + sband, rxv, &mode); + if (ret < 0) + return ret; + } + } + + amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4); + status->amsdu = !!amsdu_info; + if (status->amsdu) { + status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME; + status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME; + } + + hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad; + if (hdr_trans && ieee80211_has_morefrags(fc)) { + struct ieee80211_vif *vif; + int err; + + if (!msta || !msta->vif) + return -EINVAL; + + vif = container_of((void *)msta->vif, struct ieee80211_vif, + drv_priv); + err = mt76_connac2_reverse_frag0_hdr_trans(vif, skb, hdr_gap); + if (err) + return err; + + hdr_trans = false; + } else { + int pad_start = 0; + + skb_pull(skb, hdr_gap); + if (!hdr_trans && status->amsdu) { + pad_start = ieee80211_get_hdrlen_from_skb(skb); + } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) { + /* + * When header translation failure is indicated, + * the hardware will insert an extra 2-byte field + * containing the data length after the protocol + * type field. This happens either when the LLC-SNAP + * pattern did not match, or if a VLAN header was + * detected. + */ + pad_start = 12; + if (get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q) + pad_start += 4; + else + pad_start = 0; + } + + if (pad_start) { + memmove(skb->data + 2, skb->data, pad_start); + skb_pull(skb, 2); + } + } + + if (!hdr_trans) { + struct ieee80211_hdr *hdr; + + if (insert_ccmp_hdr) { + u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1); + + mt76_insert_ccmp_hdr(skb, key_id); + } + + hdr = mt76_skb_get_hdr(skb); + fc = hdr->frame_control; + if (ieee80211_is_data_qos(fc)) { + seq_ctrl = le16_to_cpu(hdr->seq_ctrl); + qos_ctl = *ieee80211_get_qos_ctl(hdr); + } + } else { + status->flag |= RX_FLAG_8023; + mt7915_wed_check_ppe(dev, &dev->mt76.q_rx[q], msta, skb, + *info); + } + + if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023)) + mt76_connac2_mac_decode_he_radiotap(&dev->mt76, skb, rxv, mode); + + if (!status->wcid || !ieee80211_is_data_qos(fc)) + return 0; + + status->aggr = unicast && + !ieee80211_is_qos_nullfunc(fc); + status->qos_ctl = qos_ctl; + status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl); + + return 0; +} + +static void +mt7915_mac_fill_rx_vector(struct mt7915_dev *dev, struct sk_buff *skb) +{ +#ifdef CONFIG_NL80211_TESTMODE + struct mt7915_phy *phy = &dev->phy; + __le32 *rxd = (__le32 *)skb->data; + __le32 *rxv_hdr = rxd + 2; + __le32 *rxv = rxd + 4; + u32 rcpi, ib_rssi, wb_rssi, v20, v21; + u8 band_idx; + s32 foe; + u8 snr; + int i; + + band_idx = le32_get_bits(rxv_hdr[1], MT_RXV_HDR_BAND_IDX); + if (band_idx && !phy->mt76->band_idx) { + phy = mt7915_ext_phy(dev); + if (!phy) + goto out; + } + + rcpi = le32_to_cpu(rxv[6]); + ib_rssi = le32_to_cpu(rxv[7]); + wb_rssi = le32_to_cpu(rxv[8]) >> 5; + + for (i = 0; i < 4; i++, rcpi >>= 8, ib_rssi >>= 8, wb_rssi >>= 9) { + if (i == 3) + wb_rssi = le32_to_cpu(rxv[9]); + + phy->test.last_rcpi[i] = rcpi & 0xff; + phy->test.last_ib_rssi[i] = ib_rssi & 0xff; + phy->test.last_wb_rssi[i] = wb_rssi & 0xff; + } + + v20 = le32_to_cpu(rxv[20]); + v21 = le32_to_cpu(rxv[21]); + + foe = FIELD_GET(MT_CRXV_FOE_LO, v20) | + (FIELD_GET(MT_CRXV_FOE_HI, v21) << MT_CRXV_FOE_SHIFT); + + snr = FIELD_GET(MT_CRXV_SNR, v20) - 16; + + phy->test.last_freq_offset = foe; + phy->test.last_snr = snr; +out: +#endif + dev_kfree_skb(skb); +} + +static void +mt7915_mac_write_txwi_tm(struct mt7915_phy *phy, __le32 *txwi, + struct sk_buff *skb) +{ +#ifdef CONFIG_NL80211_TESTMODE + struct mt76_testmode_data *td = &phy->mt76->test; + const struct ieee80211_rate *r; + u8 bw, mode, nss = td->tx_rate_nss; + u8 rate_idx = td->tx_rate_idx; + u16 rateval = 0; + u32 val; + bool cck = false; + int band; + + if (skb != phy->mt76->test.tx_skb) + return; + + switch (td->tx_rate_mode) { + case MT76_TM_TX_MODE_HT: + nss = 1 + (rate_idx >> 3); + mode = MT_PHY_TYPE_HT; + break; + case MT76_TM_TX_MODE_VHT: + mode = MT_PHY_TYPE_VHT; + break; + case MT76_TM_TX_MODE_HE_SU: + mode = MT_PHY_TYPE_HE_SU; + break; + case MT76_TM_TX_MODE_HE_EXT_SU: + mode = MT_PHY_TYPE_HE_EXT_SU; + break; + case MT76_TM_TX_MODE_HE_TB: + mode = MT_PHY_TYPE_HE_TB; + break; + case MT76_TM_TX_MODE_HE_MU: + mode = MT_PHY_TYPE_HE_MU; + break; + case MT76_TM_TX_MODE_CCK: + cck = true; + fallthrough; + case MT76_TM_TX_MODE_OFDM: + band = phy->mt76->chandef.chan->band; + if (band == NL80211_BAND_2GHZ && !cck) + rate_idx += 4; + + r = &phy->mt76->hw->wiphy->bands[band]->bitrates[rate_idx]; + val = cck ? r->hw_value_short : r->hw_value; + + mode = val >> 8; + rate_idx = val & 0xff; + break; + default: + mode = MT_PHY_TYPE_OFDM; + break; + } + + switch (phy->mt76->chandef.width) { + case NL80211_CHAN_WIDTH_40: + bw = 1; + break; + case NL80211_CHAN_WIDTH_80: + bw = 2; + break; + case NL80211_CHAN_WIDTH_80P80: + case NL80211_CHAN_WIDTH_160: + bw = 3; + break; + default: + bw = 0; + break; + } + + if (td->tx_rate_stbc && nss == 1) { + nss++; + rateval |= MT_TX_RATE_STBC; + } + + rateval |= FIELD_PREP(MT_TX_RATE_IDX, rate_idx) | + FIELD_PREP(MT_TX_RATE_MODE, mode) | + FIELD_PREP(MT_TX_RATE_NSS, nss - 1); + + txwi[2] |= cpu_to_le32(MT_TXD2_FIX_RATE); + + le32p_replace_bits(&txwi[3], 1, MT_TXD3_REM_TX_COUNT); + if (td->tx_rate_mode < MT76_TM_TX_MODE_HT) + txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE); + + val = MT_TXD6_FIXED_BW | + FIELD_PREP(MT_TXD6_BW, bw) | + FIELD_PREP(MT_TXD6_TX_RATE, rateval) | + FIELD_PREP(MT_TXD6_SGI, td->tx_rate_sgi); + + /* for HE_SU/HE_EXT_SU PPDU + * - 1x, 2x, 4x LTF + 0.8us GI + * - 2x LTF + 1.6us GI, 4x LTF + 3.2us GI + * for HE_MU PPDU + * - 2x, 4x LTF + 0.8us GI + * - 2x LTF + 1.6us GI, 4x LTF + 3.2us GI + * for HE_TB PPDU + * - 1x, 2x LTF + 1.6us GI + * - 4x LTF + 3.2us GI + */ + if (mode >= MT_PHY_TYPE_HE_SU) + val |= FIELD_PREP(MT_TXD6_HELTF, td->tx_ltf); + + if (td->tx_rate_ldpc || (bw > 0 && mode >= MT_PHY_TYPE_HE_SU)) + val |= MT_TXD6_LDPC; + + txwi[3] &= ~cpu_to_le32(MT_TXD3_SN_VALID); + txwi[6] |= cpu_to_le32(val); + txwi[7] |= cpu_to_le32(FIELD_PREP(MT_TXD7_SPE_IDX, + phy->test.spe_idx)); +#endif +} + +void mt7915_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi, + struct sk_buff *skb, struct mt76_wcid *wcid, int pid, + struct ieee80211_key_conf *key, + enum mt76_txq_id qid, u32 changed) +{ + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + u8 phy_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2; + struct mt76_phy *mphy = &dev->phy; + + if (phy_idx && dev->phys[MT_BAND1]) + mphy = dev->phys[MT_BAND1]; + + mt76_connac2_mac_write_txwi(dev, txwi, skb, wcid, key, pid, qid, changed); + + if (mt76_testmode_enabled(mphy)) + mt7915_mac_write_txwi_tm(mphy->priv, txwi, skb); +} + +int mt7915_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, + struct mt76_tx_info *tx_info) +{ + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data; + struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); + struct ieee80211_key_conf *key = info->control.hw_key; + struct ieee80211_vif *vif = info->control.vif; + struct mt76_connac_fw_txp *txp; + struct mt76_txwi_cache *t; + int id, i, nbuf = tx_info->nbuf - 1; + u8 *txwi = (u8 *)txwi_ptr; + int pid; + + if (unlikely(tx_info->skb->len <= ETH_HLEN)) + return -EINVAL; + + if (!wcid) + wcid = &dev->mt76.global_wcid; + + if (sta) { + struct mt7915_sta *msta; + + msta = (struct mt7915_sta *)sta->drv_priv; + + if (time_after(jiffies, msta->jiffies + HZ / 4)) { + info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; + msta->jiffies = jiffies; + } + } + + t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size); + t->skb = tx_info->skb; + + id = mt76_token_consume(mdev, &t); + if (id < 0) + return id; + + pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); + mt7915_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, pid, key, + qid, 0); + + txp = (struct mt76_connac_fw_txp *)(txwi + MT_TXD_SIZE); + for (i = 0; i < nbuf; i++) { + txp->buf[i] = cpu_to_le32(tx_info->buf[i + 1].addr); + txp->len[i] = cpu_to_le16(tx_info->buf[i + 1].len); + } + txp->nbuf = nbuf; + + txp->flags = cpu_to_le16(MT_CT_INFO_APPLY_TXD | MT_CT_INFO_FROM_HOST); + + if (!key) + txp->flags |= cpu_to_le16(MT_CT_INFO_NONE_CIPHER_FRAME); + + if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) && + ieee80211_is_mgmt(hdr->frame_control)) + txp->flags |= cpu_to_le16(MT_CT_INFO_MGMT_FRAME); + + if (vif) { + struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; + + txp->bss_idx = mvif->mt76.idx; + } + + txp->token = cpu_to_le16(id); + if (test_bit(MT_WCID_FLAG_4ADDR, &wcid->flags)) + txp->rept_wds_wcid = cpu_to_le16(wcid->idx); + else + txp->rept_wds_wcid = cpu_to_le16(0x3ff); + tx_info->skb = DMA_DUMMY_DATA; + + /* pass partial skb header to fw */ + tx_info->buf[1].len = MT_CT_PARSE_LEN; + tx_info->buf[1].skip_unmap = true; + tx_info->nbuf = MT_CT_DMA_BUF_NUM; + + return 0; +} + +u32 mt7915_wed_init_buf(void *ptr, dma_addr_t phys, int token_id) +{ + struct mt76_connac_fw_txp *txp = ptr + MT_TXD_SIZE; + __le32 *txwi = ptr; + u32 val; + + memset(ptr, 0, MT_TXD_SIZE + sizeof(*txp)); + + val = FIELD_PREP(MT_TXD0_TX_BYTES, MT_TXD_SIZE) | + FIELD_PREP(MT_TXD0_PKT_FMT, MT_TX_TYPE_CT); + txwi[0] = cpu_to_le32(val); + + val = MT_TXD1_LONG_FORMAT | + FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3); + txwi[1] = cpu_to_le32(val); + + txp->token = cpu_to_le16(token_id); + txp->nbuf = 1; + txp->buf[0] = cpu_to_le32(phys + MT_TXD_SIZE + sizeof(*txp)); + + return MT_TXD_SIZE + sizeof(*txp); +} + +static void +mt7915_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) +{ + struct mt7915_sta *msta; + u16 fc, tid; + u32 val; + + if (!sta || !(sta->deflink.ht_cap.ht_supported || sta->deflink.he_cap.has_he)) + return; + + tid = le32_get_bits(txwi[1], MT_TXD1_TID); + if (tid >= 6) /* skip VO queue */ + return; + + val = le32_to_cpu(txwi[2]); + fc = FIELD_GET(MT_TXD2_FRAME_TYPE, val) << 2 | + FIELD_GET(MT_TXD2_SUB_TYPE, val) << 4; + if (unlikely(fc != (IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA))) + return; + + msta = (struct mt7915_sta *)sta->drv_priv; + if (!test_and_set_bit(tid, &msta->ampdu_state)) + ieee80211_start_tx_ba_session(sta, tid, 0); +} + +static void +mt7915_txwi_free(struct mt7915_dev *dev, struct mt76_txwi_cache *t, + struct ieee80211_sta *sta, struct list_head *free_list) +{ + struct mt76_dev *mdev = &dev->mt76; + struct mt7915_sta *msta; + struct mt76_wcid *wcid; + __le32 *txwi; + u16 wcid_idx; + + mt76_connac_txp_skb_unmap(mdev, t); + if (!t->skb) + goto out; + + txwi = (__le32 *)mt76_get_txwi_ptr(mdev, t); + if (sta) { + wcid = (struct mt76_wcid *)sta->drv_priv; + wcid_idx = wcid->idx; + } else { + wcid_idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX); + wcid = rcu_dereference(dev->mt76.wcid[wcid_idx]); + + if (wcid && wcid->sta) { + msta = container_of(wcid, struct mt7915_sta, wcid); + sta = container_of((void *)msta, struct ieee80211_sta, + drv_priv); + spin_lock_bh(&dev->sta_poll_lock); + if (list_empty(&msta->poll_list)) + list_add_tail(&msta->poll_list, &dev->sta_poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + } + } + + if (sta && likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE))) + mt7915_tx_check_aggr(sta, txwi); + + __mt76_tx_complete_skb(mdev, wcid_idx, t->skb, free_list); + +out: + t->skb = NULL; + mt76_put_txwi(mdev, t); +} + +static void +mt7915_mac_tx_free_prepare(struct mt7915_dev *dev) +{ + struct mt76_dev *mdev = &dev->mt76; + struct mt76_phy *mphy_ext = mdev->phys[MT_BAND1]; + + /* clean DMA queues and unmap buffers first */ + mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false); + mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_BE], false); + if (mphy_ext) { + mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_PSD], false); + mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_BE], false); + } +} + +static void +mt7915_mac_tx_free_done(struct mt7915_dev *dev, + struct list_head *free_list, bool wake) +{ + struct sk_buff *skb, *tmp; + + mt7915_mac_sta_poll(dev); + + if (wake) + mt76_set_tx_blocked(&dev->mt76, false); + + mt76_worker_schedule(&dev->mt76.tx_worker); + + list_for_each_entry_safe(skb, tmp, free_list, list) { + skb_list_del_init(skb); + napi_consume_skb(skb, 1); + } +} + +static void +mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len) +{ + struct mt76_connac_tx_free *free = data; + __le32 *tx_info = (__le32 *)(data + sizeof(*free)); + struct mt76_dev *mdev = &dev->mt76; + struct mt76_txwi_cache *txwi; + struct ieee80211_sta *sta = NULL; + LIST_HEAD(free_list); + void *end = data + len; + bool v3, wake = false; + u16 total, count = 0; + u32 txd = le32_to_cpu(free->txd); + __le32 *cur_info; + + mt7915_mac_tx_free_prepare(dev); + + total = le16_get_bits(free->ctrl, MT_TX_FREE_MSDU_CNT); + v3 = (FIELD_GET(MT_TX_FREE_VER, txd) == 0x4); + + for (cur_info = tx_info; count < total; cur_info++) { + u32 msdu, info; + u8 i; + + if (WARN_ON_ONCE((void *)cur_info >= end)) + return; + + /* + * 1'b1: new wcid pair. + * 1'b0: msdu_id with the same 'wcid pair' as above. + */ + info = le32_to_cpu(*cur_info); + if (info & MT_TX_FREE_PAIR) { + struct mt7915_sta *msta; + struct mt76_wcid *wcid; + u16 idx; + + idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info); + wcid = rcu_dereference(dev->mt76.wcid[idx]); + sta = wcid_to_sta(wcid); + if (!sta) + continue; + + msta = container_of(wcid, struct mt7915_sta, wcid); + spin_lock_bh(&dev->sta_poll_lock); + if (list_empty(&msta->poll_list)) + list_add_tail(&msta->poll_list, &dev->sta_poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + continue; + } + + if (v3 && (info & MT_TX_FREE_MPDU_HEADER)) + continue; + + for (i = 0; i < 1 + v3; i++) { + if (v3) { + msdu = (info >> (15 * i)) & MT_TX_FREE_MSDU_ID_V3; + if (msdu == MT_TX_FREE_MSDU_ID_V3) + continue; + } else { + msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); + } + count++; + txwi = mt76_token_release(mdev, msdu, &wake); + if (!txwi) + continue; + + mt7915_txwi_free(dev, txwi, sta, &free_list); + } + } + + mt7915_mac_tx_free_done(dev, &free_list, wake); +} + +static void +mt7915_mac_tx_free_v0(struct mt7915_dev *dev, void *data, int len) +{ + struct mt76_connac_tx_free *free = data; + __le16 *info = (__le16 *)(data + sizeof(*free)); + struct mt76_dev *mdev = &dev->mt76; + void *end = data + len; + LIST_HEAD(free_list); + bool wake = false; + u8 i, count; + + mt7915_mac_tx_free_prepare(dev); + + count = FIELD_GET(MT_TX_FREE_MSDU_CNT_V0, le16_to_cpu(free->ctrl)); + if (WARN_ON_ONCE((void *)&info[count] > end)) + return; + + for (i = 0; i < count; i++) { + struct mt76_txwi_cache *txwi; + u16 msdu = le16_to_cpu(info[i]); + + txwi = mt76_token_release(mdev, msdu, &wake); + if (!txwi) + continue; + + mt7915_txwi_free(dev, txwi, NULL, &free_list); + } + + mt7915_mac_tx_free_done(dev, &free_list, wake); +} + +static void mt7915_mac_add_txs(struct mt7915_dev *dev, void *data) +{ + struct mt7915_sta *msta = NULL; + struct mt76_wcid *wcid; + __le32 *txs_data = data; + u16 wcidx; + u8 pid; + + wcidx = le32_get_bits(txs_data[2], MT_TXS2_WCID); + pid = le32_get_bits(txs_data[3], MT_TXS3_PID); + + if (pid < MT_PACKET_ID_WED) + return; + + if (wcidx >= mt7915_wtbl_size(dev)) + return; + + rcu_read_lock(); + + wcid = rcu_dereference(dev->mt76.wcid[wcidx]); + if (!wcid) + goto out; + + msta = container_of(wcid, struct mt7915_sta, wcid); + + if (pid == MT_PACKET_ID_WED) + mt76_connac2_mac_fill_txs(&dev->mt76, wcid, txs_data); + else + mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data); + + if (!wcid->sta) + goto out; + + spin_lock_bh(&dev->sta_poll_lock); + if (list_empty(&msta->poll_list)) + list_add_tail(&msta->poll_list, &dev->sta_poll_list); + spin_unlock_bh(&dev->sta_poll_lock); + +out: + rcu_read_unlock(); +} + +bool mt7915_rx_check(struct mt76_dev *mdev, void *data, int len) +{ + struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); + __le32 *rxd = (__le32 *)data; + __le32 *end = (__le32 *)&rxd[len / 4]; + enum rx_pkt_type type; + + type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); + + switch (type) { + case PKT_TYPE_TXRX_NOTIFY: + mt7915_mac_tx_free(dev, data, len); + return false; + case PKT_TYPE_TXRX_NOTIFY_V0: + mt7915_mac_tx_free_v0(dev, data, len); + return false; + case PKT_TYPE_TXS: + for (rxd += 2; rxd + 8 <= end; rxd += 8) + mt7915_mac_add_txs(dev, rxd); + return false; + case PKT_TYPE_RX_FW_MONITOR: + mt7915_debugfs_rx_fw_monitor(dev, data, len); + return false; + default: + return true; + } +} + +void mt7915_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, + struct sk_buff *skb, u32 *info) +{ + struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); + __le32 *rxd = (__le32 *)skb->data; + __le32 *end = (__le32 *)&skb->data[skb->len]; + enum rx_pkt_type type; + + type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); + + switch (type) { + case PKT_TYPE_TXRX_NOTIFY: + mt7915_mac_tx_free(dev, skb->data, skb->len); + napi_consume_skb(skb, 1); + break; + case PKT_TYPE_TXRX_NOTIFY_V0: + mt7915_mac_tx_free_v0(dev, skb->data, skb->len); + napi_consume_skb(skb, 1); + break; + case PKT_TYPE_RX_EVENT: + mt7915_mcu_rx_event(dev, skb); + break; + case PKT_TYPE_TXRXV: + mt7915_mac_fill_rx_vector(dev, skb); + break; + case PKT_TYPE_TXS: + for (rxd += 2; rxd + 8 <= end; rxd += 8) + mt7915_mac_add_txs(dev, rxd); + dev_kfree_skb(skb); + break; + case PKT_TYPE_RX_FW_MONITOR: + mt7915_debugfs_rx_fw_monitor(dev, skb->data, skb->len); + dev_kfree_skb(skb); + break; + case PKT_TYPE_NORMAL: + if (!mt7915_mac_fill_rx(dev, skb, q, info)) { + mt76_rx(&dev->mt76, q, skb); + return; + } + fallthrough; + default: + dev_kfree_skb(skb); + break; + } +} + +void mt7915_mac_cca_stats_reset(struct mt7915_phy *phy) +{ + struct mt7915_dev *dev = phy->dev; + u32 reg = MT_WF_PHY_RX_CTRL1(phy->mt76->band_idx); + + mt76_clear(dev, reg, MT_WF_PHY_RX_CTRL1_STSCNT_EN); + mt76_set(dev, reg, BIT(11) | BIT(9)); +} + +void mt7915_mac_reset_counters(struct mt7915_phy *phy) +{ + struct mt7915_dev *dev = phy->dev; + int i; + + for (i = 0; i < 4; i++) { + mt76_rr(dev, MT_TX_AGG_CNT(phy->mt76->band_idx, i)); + mt76_rr(dev, MT_TX_AGG_CNT2(phy->mt76->band_idx, i)); + } + + phy->mt76->survey_time = ktime_get_boottime(); + memset(phy->mt76->aggr_stats, 0, sizeof(phy->mt76->aggr_stats)); + + /* reset airtime counters */ + mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(phy->mt76->band_idx), + MT_WF_RMAC_MIB_RXTIME_CLR); + + mt7915_mcu_get_chan_mib_info(phy, true); +} + +void mt7915_mac_set_timing(struct mt7915_phy *phy) +{ + s16 coverage_class = phy->coverage_class; + struct mt7915_dev *dev = phy->dev; + struct mt7915_phy *ext_phy = mt7915_ext_phy(dev); + u32 val, reg_offset; + u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) | + FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48); + u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) | + FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28); + u8 band = phy->mt76->band_idx; + int eifs_ofdm = 360, sifs = 10, offset; + bool a_band = !(phy->mt76->chandef.chan->band == NL80211_BAND_2GHZ); + + if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) + return; + + if (ext_phy) + coverage_class = max_t(s16, dev->phy.coverage_class, + ext_phy->coverage_class); + + mt76_set(dev, MT_ARB_SCR(band), + MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); + udelay(1); + + offset = 3 * coverage_class; + reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) | + FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset); + + if (!is_mt7915(&dev->mt76)) { + if (!a_band) { + mt76_wr(dev, MT_TMAC_ICR1(band), + FIELD_PREP(MT_IFS_EIFS_CCK, 314)); + eifs_ofdm = 78; + } else { + eifs_ofdm = 84; + } + } else if (a_band) { + sifs = 16; + } + + mt76_wr(dev, MT_TMAC_CDTR(band), cck + reg_offset); + mt76_wr(dev, MT_TMAC_ODTR(band), ofdm + reg_offset); + mt76_wr(dev, MT_TMAC_ICR0(band), + FIELD_PREP(MT_IFS_EIFS_OFDM, eifs_ofdm) | + FIELD_PREP(MT_IFS_RIFS, 2) | + FIELD_PREP(MT_IFS_SIFS, sifs) | + FIELD_PREP(MT_IFS_SLOT, phy->slottime)); + + if (phy->slottime < 20 || a_band) + val = MT7915_CFEND_RATE_DEFAULT; + else + val = MT7915_CFEND_RATE_11B; + + mt76_rmw_field(dev, MT_AGG_ACR0(band), MT_AGG_ACR_CFEND_RATE, val); + mt76_clear(dev, MT_ARB_SCR(band), + MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); +} + +void mt7915_mac_enable_nf(struct mt7915_dev *dev, bool band) +{ + u32 reg; + + reg = is_mt7915(&dev->mt76) ? MT_WF_PHY_RXTD12(band) : + MT_WF_PHY_RXTD12_MT7916(band); + mt76_set(dev, reg, + MT_WF_PHY_RXTD12_IRPI_SW_CLR_ONLY | + MT_WF_PHY_RXTD12_IRPI_SW_CLR); + + reg = is_mt7915(&dev->mt76) ? MT_WF_PHY_RX_CTRL1(band) : + MT_WF_PHY_RX_CTRL1_MT7916(band); + mt76_set(dev, reg, FIELD_PREP(MT_WF_PHY_RX_CTRL1_IPI_EN, 0x5)); +} + +static u8 +mt7915_phy_get_nf(struct mt7915_phy *phy, int idx) +{ + static const u8 nf_power[] = { 92, 89, 86, 83, 80, 75, 70, 65, 60, 55, 52 }; + struct mt7915_dev *dev = phy->dev; + u32 val, sum = 0, n = 0; + int nss, i; + + for (nss = 0; nss < hweight8(phy->mt76->chainmask); nss++) { + u32 reg = is_mt7915(&dev->mt76) ? + MT_WF_IRPI_NSS(0, nss + (idx << dev->dbdc_support)) : + MT_WF_IRPI_NSS_MT7916(idx, nss); + + for (i = 0; i < ARRAY_SIZE(nf_power); i++, reg += 4) { + val = mt76_rr(dev, reg); + sum += val * nf_power[i]; + n += val; + } + } + + if (!n) + return 0; + + return sum / n; +} + +void mt7915_update_channel(struct mt76_phy *mphy) +{ + struct mt7915_phy *phy = (struct mt7915_phy *)mphy->priv; + struct mt76_channel_state *state = mphy->chan_state; + int nf; + + mt7915_mcu_get_chan_mib_info(phy, false); + + nf = mt7915_phy_get_nf(phy, phy->mt76->band_idx); + if (!phy->noise) + phy->noise = nf << 4; + else if (nf) + phy->noise += nf - (phy->noise >> 4); + + state->noise = -(phy->noise >> 4); +} + +static bool +mt7915_wait_reset_state(struct mt7915_dev *dev, u32 state) +{ + bool ret; + + ret = wait_event_timeout(dev->reset_wait, + (READ_ONCE(dev->recovery.state) & state), + MT7915_RESET_TIMEOUT); + + WARN(!ret, "Timeout waiting for MCU reset state %x\n", state); + return ret; +} + +static void +mt7915_update_vif_beacon(void *priv, u8 *mac, struct ieee80211_vif *vif) +{ + struct ieee80211_hw *hw = priv; + + switch (vif->type) { + case NL80211_IFTYPE_MESH_POINT: + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_AP: + mt7915_mcu_add_beacon(hw, vif, vif->bss_conf.enable_beacon, + BSS_CHANGED_BEACON_ENABLED); + break; + default: + break; + } +} + +static void +mt7915_update_beacons(struct mt7915_dev *dev) +{ + struct mt76_phy *mphy_ext = dev->mt76.phys[MT_BAND1]; + + ieee80211_iterate_active_interfaces(dev->mt76.hw, + IEEE80211_IFACE_ITER_RESUME_ALL, + mt7915_update_vif_beacon, dev->mt76.hw); + + if (!mphy_ext) + return; + + ieee80211_iterate_active_interfaces(mphy_ext->hw, + IEEE80211_IFACE_ITER_RESUME_ALL, + mt7915_update_vif_beacon, mphy_ext->hw); +} + +void mt7915_tx_token_put(struct mt7915_dev *dev) +{ + struct mt76_txwi_cache *txwi; + int id; + + spin_lock_bh(&dev->mt76.token_lock); + idr_for_each_entry(&dev->mt76.token, txwi, id) { + mt7915_txwi_free(dev, txwi, NULL, NULL); + dev->mt76.token_count--; + } + spin_unlock_bh(&dev->mt76.token_lock); + idr_destroy(&dev->mt76.token); +} + +static int +mt7915_mac_restart(struct mt7915_dev *dev) +{ + struct mt7915_phy *phy2; + struct mt76_phy *ext_phy; + struct mt76_dev *mdev = &dev->mt76; + int i, ret; + + ext_phy = dev->mt76.phys[MT_BAND1]; + phy2 = ext_phy ? ext_phy->priv : NULL; + + if (dev->hif2) { + mt76_wr(dev, MT_INT1_MASK_CSR, 0x0); + mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0); + } + + if (dev_is_pci(mdev->dev)) { + mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0); + if (dev->hif2) + mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0x0); + } + + set_bit(MT76_RESET, &dev->mphy.state); + set_bit(MT76_MCU_RESET, &dev->mphy.state); + wake_up(&dev->mt76.mcu.wait); + if (ext_phy) { + set_bit(MT76_RESET, &ext_phy->state); + set_bit(MT76_MCU_RESET, &ext_phy->state); + } + + /* lock/unlock all queues to ensure that no tx is pending */ + mt76_txq_schedule_all(&dev->mphy); + if (ext_phy) + mt76_txq_schedule_all(ext_phy); + + /* disable all tx/rx napi */ + mt76_worker_disable(&dev->mt76.tx_worker); + mt76_for_each_q_rx(mdev, i) { + if (mdev->q_rx[i].ndesc) + napi_disable(&dev->mt76.napi[i]); + } + napi_disable(&dev->mt76.tx_napi); + + /* token reinit */ + mt7915_tx_token_put(dev); + idr_init(&dev->mt76.token); + + mt7915_dma_reset(dev, true); + + local_bh_disable(); + mt76_for_each_q_rx(mdev, i) { + if (mdev->q_rx[i].ndesc) { + napi_enable(&dev->mt76.napi[i]); + napi_schedule(&dev->mt76.napi[i]); + } + } + local_bh_enable(); + clear_bit(MT76_MCU_RESET, &dev->mphy.state); + clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); + + mt76_wr(dev, MT_INT_MASK_CSR, dev->mt76.mmio.irqmask); + mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); + + if (dev->hif2) { + mt76_wr(dev, MT_INT1_MASK_CSR, dev->mt76.mmio.irqmask); + mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0); + } + if (dev_is_pci(mdev->dev)) { + mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); + if (dev->hif2) + mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff); + } + + /* load firmware */ + ret = mt7915_mcu_init_firmware(dev); + if (ret) + goto out; + + /* set the necessary init items */ + ret = mt7915_mcu_set_eeprom(dev); + if (ret) + goto out; + + mt7915_mac_init(dev); + mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband); + mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband); + ret = mt7915_txbf_init(dev); + + if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) { + ret = mt7915_run(dev->mphy.hw); + if (ret) + goto out; + } + + if (ext_phy && test_bit(MT76_STATE_RUNNING, &ext_phy->state)) { + ret = mt7915_run(ext_phy->hw); + if (ret) + goto out; + } + +out: + /* reset done */ + clear_bit(MT76_RESET, &dev->mphy.state); + if (phy2) + clear_bit(MT76_RESET, &phy2->mt76->state); + + local_bh_disable(); + napi_enable(&dev->mt76.tx_napi); + napi_schedule(&dev->mt76.tx_napi); + local_bh_enable(); + + mt76_worker_enable(&dev->mt76.tx_worker); + + return ret; +} + +static void +mt7915_mac_full_reset(struct mt7915_dev *dev) +{ + struct mt76_phy *ext_phy; + int i; + + ext_phy = dev->mt76.phys[MT_BAND1]; + + dev->recovery.hw_full_reset = true; + + wake_up(&dev->mt76.mcu.wait); + ieee80211_stop_queues(mt76_hw(dev)); + if (ext_phy) + ieee80211_stop_queues(ext_phy->hw); + + cancel_delayed_work_sync(&dev->mphy.mac_work); + if (ext_phy) + cancel_delayed_work_sync(&ext_phy->mac_work); + + mutex_lock(&dev->mt76.mutex); + for (i = 0; i < 10; i++) { + if (!mt7915_mac_restart(dev)) + break; + } + mutex_unlock(&dev->mt76.mutex); + + if (i == 10) + dev_err(dev->mt76.dev, "chip full reset failed\n"); + + ieee80211_restart_hw(mt76_hw(dev)); + if (ext_phy) + ieee80211_restart_hw(ext_phy->hw); + + ieee80211_wake_queues(mt76_hw(dev)); + if (ext_phy) + ieee80211_wake_queues(ext_phy->hw); + + dev->recovery.hw_full_reset = false; + ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work, + MT7915_WATCHDOG_TIME); + if (ext_phy) + ieee80211_queue_delayed_work(ext_phy->hw, + &ext_phy->mac_work, + MT7915_WATCHDOG_TIME); +} + +/* system error recovery */ +void mt7915_mac_reset_work(struct work_struct *work) +{ + struct mt7915_phy *phy2; + struct mt76_phy *ext_phy; + struct mt7915_dev *dev; + int i; + + dev = container_of(work, struct mt7915_dev, reset_work); + ext_phy = dev->mt76.phys[MT_BAND1]; + phy2 = ext_phy ? ext_phy->priv : NULL; + + /* chip full reset */ + if (dev->recovery.restart) { + /* disable WA/WM WDT */ + mt76_clear(dev, MT_WFDMA0_MCU_HOST_INT_ENA, + MT_MCU_CMD_WDT_MASK); + + if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WA_WDT) + dev->recovery.wa_reset_count++; + else + dev->recovery.wm_reset_count++; + + mt7915_mac_full_reset(dev); + + /* enable mcu irq */ + mt7915_irq_enable(dev, MT_INT_MCU_CMD); + mt7915_irq_disable(dev, 0); + + /* enable WA/WM WDT */ + mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK); + + dev->recovery.state = MT_MCU_CMD_NORMAL_STATE; + dev->recovery.restart = false; + return; + } + + /* chip partial reset */ + if (!(READ_ONCE(dev->recovery.state) & MT_MCU_CMD_STOP_DMA)) + return; + + if (mtk_wed_device_active(&dev->mt76.mmio.wed)) { + mtk_wed_device_stop(&dev->mt76.mmio.wed); + if (!is_mt7986(&dev->mt76)) + mt76_wr(dev, MT_INT_WED_MASK_CSR, 0); + } + + ieee80211_stop_queues(mt76_hw(dev)); + if (ext_phy) + ieee80211_stop_queues(ext_phy->hw); + + set_bit(MT76_RESET, &dev->mphy.state); + set_bit(MT76_MCU_RESET, &dev->mphy.state); + wake_up(&dev->mt76.mcu.wait); + cancel_delayed_work_sync(&dev->mphy.mac_work); + if (phy2) { + set_bit(MT76_RESET, &phy2->mt76->state); + cancel_delayed_work_sync(&phy2->mt76->mac_work); + } + mt76_worker_disable(&dev->mt76.tx_worker); + mt76_for_each_q_rx(&dev->mt76, i) + napi_disable(&dev->mt76.napi[i]); + napi_disable(&dev->mt76.tx_napi); + + mutex_lock(&dev->mt76.mutex); + + mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED); + + if (mt7915_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) { + mt7915_dma_reset(dev, false); + + mt7915_tx_token_put(dev); + idr_init(&dev->mt76.token); + + mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT); + mt7915_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE); + } + + clear_bit(MT76_MCU_RESET, &dev->mphy.state); + clear_bit(MT76_RESET, &dev->mphy.state); + if (phy2) + clear_bit(MT76_RESET, &phy2->mt76->state); + + local_bh_disable(); + mt76_for_each_q_rx(&dev->mt76, i) { + napi_enable(&dev->mt76.napi[i]); + napi_schedule(&dev->mt76.napi[i]); + } + local_bh_enable(); + + tasklet_schedule(&dev->irq_tasklet); + + mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE); + mt7915_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE); + + mt76_worker_enable(&dev->mt76.tx_worker); + + local_bh_disable(); + napi_enable(&dev->mt76.tx_napi); + napi_schedule(&dev->mt76.tx_napi); + local_bh_enable(); + + ieee80211_wake_queues(mt76_hw(dev)); + if (ext_phy) + ieee80211_wake_queues(ext_phy->hw); + + mutex_unlock(&dev->mt76.mutex); + + mt7915_update_beacons(dev); + + ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work, + MT7915_WATCHDOG_TIME); + if (phy2) + ieee80211_queue_delayed_work(ext_phy->hw, + &phy2->mt76->mac_work, + MT7915_WATCHDOG_TIME); +} + +/* firmware coredump */ +void mt7915_mac_dump_work(struct work_struct *work) +{ + const struct mt7915_mem_region *mem_region; + struct mt7915_crash_data *crash_data; + struct mt7915_dev *dev; + struct mt7915_mem_hdr *hdr; + size_t buf_len; + int i; + u32 num; + u8 *buf; + + dev = container_of(work, struct mt7915_dev, dump_work); + + mutex_lock(&dev->dump_mutex); + + crash_data = mt7915_coredump_new(dev); + if (!crash_data) { + mutex_unlock(&dev->dump_mutex); + goto skip_coredump; + } + + mem_region = mt7915_coredump_get_mem_layout(dev, &num); + if (!mem_region || !crash_data->memdump_buf_len) { + mutex_unlock(&dev->dump_mutex); + goto skip_memdump; + } + + buf = crash_data->memdump_buf; + buf_len = crash_data->memdump_buf_len; + + /* dumping memory content... */ + memset(buf, 0, buf_len); + for (i = 0; i < num; i++) { + if (mem_region->len > buf_len) { + dev_warn(dev->mt76.dev, "%s len %lu is too large\n", + mem_region->name, + (unsigned long)mem_region->len); + break; + } + + /* reserve space for the header */ + hdr = (void *)buf; + buf += sizeof(*hdr); + buf_len -= sizeof(*hdr); + + mt7915_memcpy_fromio(dev, buf, mem_region->start, + mem_region->len); + + hdr->start = mem_region->start; + hdr->len = mem_region->len; + + if (!mem_region->len) + /* note: the header remains, just with zero length */ + break; + + buf += mem_region->len; + buf_len -= mem_region->len; + + mem_region++; + } + + mutex_unlock(&dev->dump_mutex); + +skip_memdump: + mt7915_coredump_submit(dev); +skip_coredump: + queue_work(dev->mt76.wq, &dev->reset_work); +} + +void mt7915_reset(struct mt7915_dev *dev) +{ + if (!dev->recovery.hw_init_done) + return; + + if (dev->recovery.hw_full_reset) + return; + + /* wm/wa exception: do full recovery */ + if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WDT_MASK) { + dev->recovery.restart = true; + dev_info(dev->mt76.dev, + "%s indicated firmware crash, attempting recovery\n", + wiphy_name(dev->mt76.hw->wiphy)); + + mt7915_irq_disable(dev, MT_INT_MCU_CMD); + queue_work(dev->mt76.wq, &dev->dump_work); + return; + } + + queue_work(dev->mt76.wq, &dev->reset_work); + wake_up(&dev->reset_wait); +} + +void mt7915_mac_update_stats(struct mt7915_phy *phy) +{ + struct mt7915_dev *dev = phy->dev; + struct mib_stats *mib = &phy->mib; + int i, aggr0 = 0, aggr1, cnt; + u8 band = phy->mt76->band_idx; + u32 val; + + cnt = mt76_rr(dev, MT_MIB_SDR3(band)); + mib->fcs_err_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR3_FCS_ERR_MASK, cnt) : + FIELD_GET(MT_MIB_SDR3_FCS_ERR_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR4(band)); + mib->rx_fifo_full_cnt += FIELD_GET(MT_MIB_SDR4_RX_FIFO_FULL_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR5(band)); + mib->rx_mpdu_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_SDR6(band)); + mib->channel_idle_cnt += FIELD_GET(MT_MIB_SDR6_CHANNEL_IDL_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR7(band)); + mib->rx_vector_mismatch_cnt += + FIELD_GET(MT_MIB_SDR7_RX_VECTOR_MISMATCH_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR8(band)); + mib->rx_delimiter_fail_cnt += + FIELD_GET(MT_MIB_SDR8_RX_DELIMITER_FAIL_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR10(band)); + mib->rx_mrdy_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR10_MRDY_COUNT_MASK, cnt) : + FIELD_GET(MT_MIB_SDR10_MRDY_COUNT_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR11(band)); + mib->rx_len_mismatch_cnt += + FIELD_GET(MT_MIB_SDR11_RX_LEN_MISMATCH_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR12(band)); + mib->tx_ampdu_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_SDR13(band)); + mib->tx_stop_q_empty_cnt += + FIELD_GET(MT_MIB_SDR13_TX_STOP_Q_EMPTY_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR14(band)); + mib->tx_mpdu_attempts_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR14_TX_MPDU_ATTEMPTS_CNT_MASK, cnt) : + FIELD_GET(MT_MIB_SDR14_TX_MPDU_ATTEMPTS_CNT_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR15(band)); + mib->tx_mpdu_success_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR15_TX_MPDU_SUCCESS_CNT_MASK, cnt) : + FIELD_GET(MT_MIB_SDR15_TX_MPDU_SUCCESS_CNT_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR16(band)); + mib->primary_cca_busy_time += + FIELD_GET(MT_MIB_SDR16_PRIMARY_CCA_BUSY_TIME_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR17(band)); + mib->secondary_cca_busy_time += + FIELD_GET(MT_MIB_SDR17_SECONDARY_CCA_BUSY_TIME_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR18(band)); + mib->primary_energy_detect_time += + FIELD_GET(MT_MIB_SDR18_PRIMARY_ENERGY_DETECT_TIME_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR19(band)); + mib->cck_mdrdy_time += FIELD_GET(MT_MIB_SDR19_CCK_MDRDY_TIME_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR20(band)); + mib->ofdm_mdrdy_time += + FIELD_GET(MT_MIB_SDR20_OFDM_VHT_MDRDY_TIME_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR21(band)); + mib->green_mdrdy_time += + FIELD_GET(MT_MIB_SDR21_GREEN_MDRDY_TIME_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR22(band)); + mib->rx_ampdu_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_SDR23(band)); + mib->rx_ampdu_bytes_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_SDR24(band)); + mib->rx_ampdu_valid_subframe_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR24_RX_AMPDU_SF_CNT_MASK, cnt) : + FIELD_GET(MT_MIB_SDR24_RX_AMPDU_SF_CNT_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR25(band)); + mib->rx_ampdu_valid_subframe_bytes_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_SDR27(band)); + mib->tx_rwp_fail_cnt += + FIELD_GET(MT_MIB_SDR27_TX_RWP_FAIL_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR28(band)); + mib->tx_rwp_need_cnt += + FIELD_GET(MT_MIB_SDR28_TX_RWP_NEED_CNT_MASK, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR29(band)); + mib->rx_pfdrop_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR29_RX_PFDROP_CNT_MASK, cnt) : + FIELD_GET(MT_MIB_SDR29_RX_PFDROP_CNT_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDRVEC(band)); + mib->rx_vec_queue_overflow_drop_cnt += is_mt7915(&dev->mt76) ? + FIELD_GET(MT_MIB_SDR30_RX_VEC_QUEUE_OVERFLOW_DROP_CNT_MASK, cnt) : + FIELD_GET(MT_MIB_SDR30_RX_VEC_QUEUE_OVERFLOW_DROP_CNT_MASK_MT7916, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR31(band)); + mib->rx_ba_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_SDRMUBF(band)); + mib->tx_bf_cnt += FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt); + + cnt = mt76_rr(dev, MT_MIB_DR8(band)); + mib->tx_mu_mpdu_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_DR9(band)); + mib->tx_mu_acked_mpdu_cnt += cnt; + + cnt = mt76_rr(dev, MT_MIB_DR11(band)); + mib->tx_su_acked_mpdu_cnt += cnt; + + cnt = mt76_rr(dev, MT_ETBF_PAR_RPT0(band)); + mib->tx_bf_rx_fb_bw = FIELD_GET(MT_ETBF_PAR_RPT0_FB_BW, cnt); + mib->tx_bf_rx_fb_nc_cnt += FIELD_GET(MT_ETBF_PAR_RPT0_FB_NC, cnt); + mib->tx_bf_rx_fb_nr_cnt += FIELD_GET(MT_ETBF_PAR_RPT0_FB_NR, cnt); + + for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) { + cnt = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i)); + mib->tx_amsdu[i] += cnt; + mib->tx_amsdu_cnt += cnt; + } + + if (is_mt7915(&dev->mt76)) { + for (i = 0, aggr1 = aggr0 + 8; i < 4; i++) { + val = mt76_rr(dev, MT_MIB_MB_SDR1(band, (i << 4))); + mib->ba_miss_cnt += + FIELD_GET(MT_MIB_BA_MISS_COUNT_MASK, val); + mib->ack_fail_cnt += + FIELD_GET(MT_MIB_ACK_FAIL_COUNT_MASK, val); + + val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 4))); + mib->rts_cnt += FIELD_GET(MT_MIB_RTS_COUNT_MASK, val); + mib->rts_retries_cnt += + FIELD_GET(MT_MIB_RTS_RETRIES_COUNT_MASK, val); + + val = mt76_rr(dev, MT_TX_AGG_CNT(band, i)); + phy->mt76->aggr_stats[aggr0++] += val & 0xffff; + phy->mt76->aggr_stats[aggr0++] += val >> 16; + + val = mt76_rr(dev, MT_TX_AGG_CNT2(band, i)); + phy->mt76->aggr_stats[aggr1++] += val & 0xffff; + phy->mt76->aggr_stats[aggr1++] += val >> 16; + } + + cnt = mt76_rr(dev, MT_MIB_SDR32(band)); + mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt); + + cnt = mt76_rr(dev, MT_MIB_SDR33(band)); + mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR33_TX_PKT_IBF_CNT, cnt); + + cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(band)); + mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt); + mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt); + + cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(band)); + mib->tx_bf_fb_cpl_cnt += FIELD_GET(MT_ETBF_TX_FB_CPL, cnt); + mib->tx_bf_fb_trig_cnt += FIELD_GET(MT_ETBF_TX_FB_TRI, cnt); + + cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(band)); + mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_ETBF_RX_FB_ALL, cnt); + mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_ETBF_RX_FB_HE, cnt); + mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_ETBF_RX_FB_VHT, cnt); + mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_ETBF_RX_FB_HT, cnt); + } else { + for (i = 0; i < 2; i++) { + /* rts count */ + val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 2))); + mib->rts_cnt += FIELD_GET(GENMASK(15, 0), val); + mib->rts_cnt += FIELD_GET(GENMASK(31, 16), val); + + /* rts retry count */ + val = mt76_rr(dev, MT_MIB_MB_SDR1(band, (i << 2))); + mib->rts_retries_cnt += FIELD_GET(GENMASK(15, 0), val); + mib->rts_retries_cnt += FIELD_GET(GENMASK(31, 16), val); + + /* ba miss count */ + val = mt76_rr(dev, MT_MIB_MB_SDR2(band, (i << 2))); + mib->ba_miss_cnt += FIELD_GET(GENMASK(15, 0), val); + mib->ba_miss_cnt += FIELD_GET(GENMASK(31, 16), val); + + /* ack fail count */ + val = mt76_rr(dev, MT_MIB_MB_BFTF(band, (i << 2))); + mib->ack_fail_cnt += FIELD_GET(GENMASK(15, 0), val); + mib->ack_fail_cnt += FIELD_GET(GENMASK(31, 16), val); + } + + for (i = 0; i < 8; i++) { + val = mt76_rr(dev, MT_TX_AGG_CNT(band, i)); + phy->mt76->aggr_stats[aggr0++] += FIELD_GET(GENMASK(15, 0), val); + phy->mt76->aggr_stats[aggr0++] += FIELD_GET(GENMASK(31, 16), val); + } + + cnt = mt76_rr(dev, MT_MIB_SDR32(band)); + mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_IBF_CNT, cnt); + mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_IBF_CNT, cnt); + mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt); + mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt); + + cnt = mt76_rr(dev, MT_MIB_BFCR7(band)); + mib->tx_bf_fb_cpl_cnt += FIELD_GET(MT_MIB_BFCR7_BFEE_TX_FB_CPL, cnt); + + cnt = mt76_rr(dev, MT_MIB_BFCR2(band)); + mib->tx_bf_fb_trig_cnt += FIELD_GET(MT_MIB_BFCR2_BFEE_TX_FB_TRIG, cnt); + + cnt = mt76_rr(dev, MT_MIB_BFCR0(band)); + mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_VHT, cnt); + mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_VHT, cnt); + mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_HT, cnt); + mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_HT, cnt); + + cnt = mt76_rr(dev, MT_MIB_BFCR1(band)); + mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_MIB_BFCR1_RX_FB_HE, cnt); + mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR1_RX_FB_HE, cnt); + } +} + +static void mt7915_mac_severe_check(struct mt7915_phy *phy) +{ + struct mt7915_dev *dev = phy->dev; + u32 trb; + + if (!phy->omac_mask) + return; + + /* In rare cases, TRB pointers might be out of sync leads to RMAC + * stopping Rx, so check status periodically to see if TRB hardware + * requires minimal recovery. + */ + trb = mt76_rr(dev, MT_TRB_RXPSR0(phy->mt76->band_idx)); + + if ((FIELD_GET(MT_TRB_RXPSR0_RX_RMAC_PTR, trb) != + FIELD_GET(MT_TRB_RXPSR0_RX_WTBL_PTR, trb)) && + (FIELD_GET(MT_TRB_RXPSR0_RX_RMAC_PTR, phy->trb_ts) != + FIELD_GET(MT_TRB_RXPSR0_RX_WTBL_PTR, phy->trb_ts)) && + trb == phy->trb_ts) + mt7915_mcu_set_ser(dev, SER_RECOVER, SER_SET_RECOVER_L3_RX_ABORT, + phy->mt76->band_idx); + + phy->trb_ts = trb; +} + +void mt7915_mac_sta_rc_work(struct work_struct *work) +{ + struct mt7915_dev *dev = container_of(work, struct mt7915_dev, rc_work); + struct ieee80211_sta *sta; + struct ieee80211_vif *vif; + struct mt7915_sta *msta; + u32 changed; + LIST_HEAD(list); + + spin_lock_bh(&dev->sta_poll_lock); + list_splice_init(&dev->sta_rc_list, &list); + + while (!list_empty(&list)) { + msta = list_first_entry(&list, struct mt7915_sta, rc_list); + list_del_init(&msta->rc_list); + changed = msta->changed; + msta->changed = 0; + spin_unlock_bh(&dev->sta_poll_lock); + + sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); + vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv); + + if (changed & (IEEE80211_RC_SUPP_RATES_CHANGED | + IEEE80211_RC_NSS_CHANGED | + IEEE80211_RC_BW_CHANGED)) + mt7915_mcu_add_rate_ctrl(dev, vif, sta, true); + + if (changed & IEEE80211_RC_SMPS_CHANGED) + mt7915_mcu_add_smps(dev, vif, sta); + + spin_lock_bh(&dev->sta_poll_lock); + } + + spin_unlock_bh(&dev->sta_poll_lock); +} + +void mt7915_mac_work(struct work_struct *work) +{ + struct mt7915_phy *phy; + struct mt76_phy *mphy; + + mphy = (struct mt76_phy *)container_of(work, struct mt76_phy, + mac_work.work); + phy = mphy->priv; + + mutex_lock(&mphy->dev->mutex); + + mt76_update_survey(mphy); + if (++mphy->mac_work_count == 5) { + mphy->mac_work_count = 0; + + mt7915_mac_update_stats(phy); + mt7915_mac_severe_check(phy); + } + + mutex_unlock(&mphy->dev->mutex); + + mt76_tx_status_check(mphy->dev, false); + + ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, + MT7915_WATCHDOG_TIME); +} + +static void mt7915_dfs_stop_radar_detector(struct mt7915_phy *phy) +{ + struct mt7915_dev *dev = phy->dev; + + if (phy->rdd_state & BIT(0)) + mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_STOP, 0, + MT_RX_SEL0, 0); + if (phy->rdd_state & BIT(1)) + mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_STOP, 1, + MT_RX_SEL0, 0); +} + +static int mt7915_dfs_start_rdd(struct mt7915_dev *dev, int chain) +{ + int err, region; + + switch (dev->mt76.region) { + case NL80211_DFS_ETSI: + region = 0; + break; + case NL80211_DFS_JP: + region = 2; + break; + case NL80211_DFS_FCC: + default: + region = 1; + break; + } + + err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_START, chain, + MT_RX_SEL0, region); + if (err < 0) + return err; + + if (is_mt7915(&dev->mt76)) { + err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT, chain, + 0, dev->dbdc_support ? 2 : 0); + if (err < 0) + return err; + } + + return mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_DET_MODE, chain, + MT_RX_SEL0, 1); +} + +static int mt7915_dfs_start_radar_detector(struct mt7915_phy *phy) +{ + struct cfg80211_chan_def *chandef = &phy->mt76->chandef; + struct mt7915_dev *dev = phy->dev; + int err; + + /* start CAC */ + err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_START, + phy->mt76->band_idx, MT_RX_SEL0, 0); + if (err < 0) + return err; + + err = mt7915_dfs_start_rdd(dev, phy->mt76->band_idx); + if (err < 0) + return err; + + phy->rdd_state |= BIT(phy->mt76->band_idx); + + if (!is_mt7915(&dev->mt76)) + return 0; + + if (chandef->width == NL80211_CHAN_WIDTH_160 || + chandef->width == NL80211_CHAN_WIDTH_80P80) { + err = mt7915_dfs_start_rdd(dev, 1); + if (err < 0) + return err; + + phy->rdd_state |= BIT(1); + } + + return 0; +} + +static int +mt7915_dfs_init_radar_specs(struct mt7915_phy *phy) +{ + const struct mt7915_dfs_radar_spec *radar_specs; + struct mt7915_dev *dev = phy->dev; + int err, i; + + switch (dev->mt76.region) { + case NL80211_DFS_FCC: + radar_specs = &fcc_radar_specs; + err = mt7915_mcu_set_fcc5_lpn(dev, 8); + if (err < 0) + return err; + break; + case NL80211_DFS_ETSI: + radar_specs = &etsi_radar_specs; + break; + case NL80211_DFS_JP: + radar_specs = &jp_radar_specs; + break; + default: + return -EINVAL; + } + + for (i = 0; i < ARRAY_SIZE(radar_specs->radar_pattern); i++) { + err = mt7915_mcu_set_radar_th(dev, i, + &radar_specs->radar_pattern[i]); + if (err < 0) + return err; + } + + return mt7915_mcu_set_pulse_th(dev, &radar_specs->pulse_th); +} + +int mt7915_dfs_init_radar_detector(struct mt7915_phy *phy) +{ + struct mt7915_dev *dev = phy->dev; + enum mt76_dfs_state dfs_state, prev_state; + int err; + + prev_state = phy->mt76->dfs_state; + dfs_state = mt76_phy_dfs_state(phy->mt76); + + if (prev_state == dfs_state) + return 0; + + if (prev_state == MT_DFS_STATE_UNKNOWN) + mt7915_dfs_stop_radar_detector(phy); + + if (dfs_state == MT_DFS_STATE_DISABLED) + goto stop; + + if (prev_state <= MT_DFS_STATE_DISABLED) { + err = mt7915_dfs_init_radar_specs(phy); + if (err < 0) + return err; + + err = mt7915_dfs_start_radar_detector(phy); + if (err < 0) + return err; + + phy->mt76->dfs_state = MT_DFS_STATE_CAC; + } + + if (dfs_state == MT_DFS_STATE_CAC) + return 0; + + err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_END, + phy->mt76->band_idx, MT_RX_SEL0, 0); + if (err < 0) { + phy->mt76->dfs_state = MT_DFS_STATE_UNKNOWN; + return err; + } + + phy->mt76->dfs_state = MT_DFS_STATE_ACTIVE; + return 0; + +stop: + err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_NORMAL_START, + phy->mt76->band_idx, MT_RX_SEL0, 0); + if (err < 0) + return err; + + if (is_mt7915(&dev->mt76)) { + err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT, + phy->mt76->band_idx, 0, + dev->dbdc_support ? 2 : 0); + if (err < 0) + return err; + } + + mt7915_dfs_stop_radar_detector(phy); + phy->mt76->dfs_state = MT_DFS_STATE_DISABLED; + + return 0; +} + +static int +mt7915_mac_twt_duration_align(int duration) +{ + return duration << 8; +} + +static u64 +mt7915_mac_twt_sched_list_add(struct mt7915_dev *dev, + struct mt7915_twt_flow *flow) +{ + struct mt7915_twt_flow *iter, *iter_next; + u32 duration = flow->duration << 8; + u64 start_tsf; + + iter = list_first_entry_or_null(&dev->twt_list, + struct mt7915_twt_flow, list); + if (!iter || !iter->sched || iter->start_tsf > duration) { + /* add flow as first entry in the list */ + list_add(&flow->list, &dev->twt_list); + return 0; + } + + list_for_each_entry_safe(iter, iter_next, &dev->twt_list, list) { + start_tsf = iter->start_tsf + + mt7915_mac_twt_duration_align(iter->duration); + if (list_is_last(&iter->list, &dev->twt_list)) + break; + + if (!iter_next->sched || + iter_next->start_tsf > start_tsf + duration) { + list_add(&flow->list, &iter->list); + goto out; + } + } + + /* add flow as last entry in the list */ + list_add_tail(&flow->list, &dev->twt_list); +out: + return start_tsf; +} + +static int mt7915_mac_check_twt_req(struct ieee80211_twt_setup *twt) +{ + struct ieee80211_twt_params *twt_agrt; + u64 interval, duration; + u16 mantissa; + u8 exp; + + /* only individual agreement supported */ + if (twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST) + return -EOPNOTSUPP; + + /* only 256us unit supported */ + if (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) + return -EOPNOTSUPP; + + twt_agrt = (struct ieee80211_twt_params *)twt->params; + + /* explicit agreement not supported */ + if (!(twt_agrt->req_type & cpu_to_le16(IEEE80211_TWT_REQTYPE_IMPLICIT))) + return -EOPNOTSUPP; + + exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, + le16_to_cpu(twt_agrt->req_type)); + mantissa = le16_to_cpu(twt_agrt->mantissa); + duration = twt_agrt->min_twt_dur << 8; + + interval = (u64)mantissa << exp; + if (interval < duration) + return -EOPNOTSUPP; + + return 0; +} + +static bool +mt7915_mac_twt_param_equal(struct mt7915_sta *msta, + struct ieee80211_twt_params *twt_agrt) +{ + u16 type = le16_to_cpu(twt_agrt->req_type); + u8 exp; + int i; + + exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, type); + for (i = 0; i < MT7915_MAX_STA_TWT_AGRT; i++) { + struct mt7915_twt_flow *f; + + if (!(msta->twt.flowid_mask & BIT(i))) + continue; + + f = &msta->twt.flow[i]; + if (f->duration == twt_agrt->min_twt_dur && + f->mantissa == twt_agrt->mantissa && + f->exp == exp && + f->protection == !!(type & IEEE80211_TWT_REQTYPE_PROTECTION) && + f->flowtype == !!(type & IEEE80211_TWT_REQTYPE_FLOWTYPE) && + f->trigger == !!(type & IEEE80211_TWT_REQTYPE_TRIGGER)) + return true; + } + + return false; +} + +void mt7915_mac_add_twt_setup(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, + struct ieee80211_twt_setup *twt) +{ + enum ieee80211_twt_setup_cmd setup_cmd = TWT_SETUP_CMD_REJECT; + struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; + struct ieee80211_twt_params *twt_agrt = (void *)twt->params; + u16 req_type = le16_to_cpu(twt_agrt->req_type); + enum ieee80211_twt_setup_cmd sta_setup_cmd; + struct mt7915_dev *dev = mt7915_hw_dev(hw); + struct mt7915_twt_flow *flow; + int flowid, table_id; + u8 exp; + + if (mt7915_mac_check_twt_req(twt)) + goto out; + + mutex_lock(&dev->mt76.mutex); + + if (dev->twt.n_agrt == MT7915_MAX_TWT_AGRT) + goto unlock; + + if (hweight8(msta->twt.flowid_mask) == ARRAY_SIZE(msta->twt.flow)) + goto unlock; + + if (twt_agrt->min_twt_dur < MT7915_MIN_TWT_DUR) { + setup_cmd = TWT_SETUP_CMD_DICTATE; + twt_agrt->min_twt_dur = MT7915_MIN_TWT_DUR; + goto unlock; + } + + flowid = ffs(~msta->twt.flowid_mask) - 1; + twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_FLOWID); + twt_agrt->req_type |= le16_encode_bits(flowid, + IEEE80211_TWT_REQTYPE_FLOWID); + + table_id = ffs(~dev->twt.table_mask) - 1; + exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, req_type); + sta_setup_cmd = FIELD_GET(IEEE80211_TWT_REQTYPE_SETUP_CMD, req_type); + + if (mt7915_mac_twt_param_equal(msta, twt_agrt)) + goto unlock; + + flow = &msta->twt.flow[flowid]; + memset(flow, 0, sizeof(*flow)); + INIT_LIST_HEAD(&flow->list); + flow->wcid = msta->wcid.idx; + flow->table_id = table_id; + flow->id = flowid; + flow->duration = twt_agrt->min_twt_dur; + flow->mantissa = twt_agrt->mantissa; + flow->exp = exp; + flow->protection = !!(req_type & IEEE80211_TWT_REQTYPE_PROTECTION); + flow->flowtype = !!(req_type & IEEE80211_TWT_REQTYPE_FLOWTYPE); + flow->trigger = !!(req_type & IEEE80211_TWT_REQTYPE_TRIGGER); + + if (sta_setup_cmd == TWT_SETUP_CMD_REQUEST || + sta_setup_cmd == TWT_SETUP_CMD_SUGGEST) { + u64 interval = (u64)le16_to_cpu(twt_agrt->mantissa) << exp; + u64 flow_tsf, curr_tsf; + u32 rem; + + flow->sched = true; + flow->start_tsf = mt7915_mac_twt_sched_list_add(dev, flow); + curr_tsf = __mt7915_get_tsf(hw, msta->vif); + div_u64_rem(curr_tsf - flow->start_tsf, interval, &rem); + flow_tsf = curr_tsf + interval - rem; + twt_agrt->twt = cpu_to_le64(flow_tsf); + } else { + list_add_tail(&flow->list, &dev->twt_list); + } + flow->tsf = le64_to_cpu(twt_agrt->twt); + + if (mt7915_mcu_twt_agrt_update(dev, msta->vif, flow, MCU_TWT_AGRT_ADD)) + goto unlock; + + setup_cmd = TWT_SETUP_CMD_ACCEPT; + dev->twt.table_mask |= BIT(table_id); + msta->twt.flowid_mask |= BIT(flowid); + dev->twt.n_agrt++; + +unlock: + mutex_unlock(&dev->mt76.mutex); +out: + twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_SETUP_CMD); + twt_agrt->req_type |= + le16_encode_bits(setup_cmd, IEEE80211_TWT_REQTYPE_SETUP_CMD); + twt->control = (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) | + (twt->control & IEEE80211_TWT_CONTROL_RX_DISABLED); +} + +void mt7915_mac_twt_teardown_flow(struct mt7915_dev *dev, + struct mt7915_sta *msta, + u8 flowid) +{ + struct mt7915_twt_flow *flow; + + lockdep_assert_held(&dev->mt76.mutex); + + if (flowid >= ARRAY_SIZE(msta->twt.flow)) + return; + + if (!(msta->twt.flowid_mask & BIT(flowid))) + return; + + flow = &msta->twt.flow[flowid]; + if (mt7915_mcu_twt_agrt_update(dev, msta->vif, flow, + MCU_TWT_AGRT_DELETE)) + return; + + list_del_init(&flow->list); + msta->twt.flowid_mask &= ~BIT(flowid); + dev->twt.table_mask &= ~BIT(flow->table_id); + dev->twt.n_agrt--; +} |