Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Sean Wang | 3078 | 63.66% | 25 | 27.47% |
Lorenzo Bianconi | 1128 | 23.33% | 48 | 52.75% |
Deren Wu | 296 | 6.12% | 4 | 4.40% |
Ryder Lee | 156 | 3.23% | 4 | 4.40% |
Xing Song | 112 | 2.32% | 2 | 2.20% |
Felix Fietkau | 39 | 0.81% | 4 | 4.40% |
Matt Whitlock | 18 | 0.37% | 1 | 1.10% |
Sujuan Chen | 4 | 0.08% | 1 | 1.10% |
Stanislaw Gruszka | 3 | 0.06% | 1 | 1.10% |
Changcheng Deng | 1 | 0.02% | 1 | 1.10% |
Total | 4835 | 91 |
// SPDX-License-Identifier: ISC /* Copyright (C) 2020 MediaTek Inc. */ #include <linux/devcoredump.h> #include <linux/etherdevice.h> #include <linux/timekeeping.h> #include "mt7921.h" #include "../dma.h" #include "../mt76_connac2_mac.h" #include "mcu.h" #define MT_WTBL_TXRX_CAP_RATE_OFFSET 7 #define MT_WTBL_TXRX_RATE_G2_HE 24 #define MT_WTBL_TXRX_RATE_G2 12 #define MT_WTBL_AC0_CTT_OFFSET 20 bool mt7921_mac_wtbl_update(struct mt792x_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); } static u32 mt7921_mac_wtbl_lmac_addr(int idx, u8 offset) { return MT_WTBL_LMAC_OFFS(idx, 0) + offset * 4; } static void mt7921_mac_sta_poll(struct mt792x_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 mt792x_sta *msta; struct mt792x_link_sta *mlink; u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS]; LIST_HEAD(sta_poll_list); struct rate_info *rate; s8 rssi[4]; int i; spin_lock_bh(&dev->mt76.sta_poll_lock); list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); while (true) { bool clear = false; u32 addr, val; u16 idx; u8 bw; spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&sta_poll_list)) { spin_unlock_bh(&dev->mt76.sta_poll_lock); break; } mlink = list_first_entry(&sta_poll_list, struct mt792x_link_sta, wcid.poll_list); msta = container_of(mlink, struct mt792x_sta, deflink); list_del_init(&mlink->wcid.poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); idx = mlink->wcid.idx; addr = mt7921_mac_wtbl_lmac_addr(idx, MT_WTBL_AC0_CTT_OFFSET); for (i = 0; i < IEEE80211_NUM_ACS; i++) { u32 tx_last = mlink->airtime_ac[i]; u32 rx_last = mlink->airtime_ac[i + 4]; mlink->airtime_ac[i] = mt76_rr(dev, addr); mlink->airtime_ac[i + 4] = mt76_rr(dev, addr + 4); tx_time[i] = mlink->airtime_ac[i] - tx_last; rx_time[i] = mlink->airtime_ac[i + 4] - rx_last; if ((tx_last | rx_last) & BIT(30)) clear = true; addr += 8; } if (clear) { mt7921_mac_wtbl_update(dev, idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR); memset(mlink->airtime_ac, 0, sizeof(mlink->airtime_ac)); } if (!mlink->wcid.sta) continue; sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); for (i = 0; i < IEEE80211_NUM_ACS; i++) { u8 q = mt76_connac_lmac_mapping(i); u32 tx_cur = tx_time[q]; u32 rx_cur = rx_time[q]; 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 = &mlink->wcid.rate; addr = mt7921_mac_wtbl_lmac_addr(idx, MT_WTBL_TXRX_CAP_RATE_OFFSET); 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 = MT_WTBL_TXRX_RATE_G2_HE + 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(MT_WTBL_TXRX_RATE_G2 + 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 = mt7921_mac_wtbl_lmac_addr(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); mlink->ack_signal = mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi); ewma_avg_signal_add(&mlink->avg_ack_signal, -mlink->ack_signal); } } static int mt7921_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb) { u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; bool hdr_trans, unicast, insert_ccmp_hdr = false; u8 chfreq, qos_ctl = 0, remove_pad, amsdu_info; u16 hdr_gap; __le32 *rxv = NULL, *rxd = (__le32 *)skb->data; struct mt76_phy *mphy = &dev->mt76.phy; struct mt792x_phy *phy = &dev->phy; struct ieee80211_supported_band *sband; u32 csum_status = *(u32 *)skb->cb; 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]); struct mt792x_sta *msta = NULL; struct mt792x_link_sta *mlink; u16 seq_ctrl = 0; __le16 fc = 0; u8 mode = 0; int i, idx; memset(status, 0, sizeof(*status)); if (rxd1 & MT_RXD1_NORMAL_BAND_IDX) return -EINVAL; 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; chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3); unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); status->wcid = mt792x_rx_get_wcid(dev, idx, unicast); if (status->wcid) { mlink = container_of(status->wcid, struct mt792x_link_sta, wcid); msta = container_of(mlink, struct mt792x_sta, deflink); spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&mlink->wcid.poll_list)) list_add_tail(&mlink->wcid.poll_list, &dev->mt76.sta_poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); } mt792x_get_status_freq_info(status, chfreq); switch (status->band) { case NL80211_BAND_5GHZ: sband = &mphy->sband_5g.sband; break; case NL80211_BAND_6GHZ: sband = &mphy->sband_6g.sband; break; default: sband = &mphy->sband_2g.sband; break; } if (!sband->channels) return -EINVAL; if (mt76_is_mmio(&dev->mt76) && (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)); seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2); qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, 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; ret = mt76_connac2_mac_fill_rx_rate(&dev->mt76, status, sband, rxv, &mode); if (ret < 0) return ret; if (rxd1 & MT_RXD1_NORMAL_GROUP_5) { rxd += 6; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; rxv = rxd; /* Monitor mode would use RCPI described in GROUP 5 * instead. */ v1 = le32_to_cpu(rxv[0]); rxd += 12; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; } 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); status->signal = -128; for (i = 0; i < hweight8(mphy->antenna_mask); i++) { if (!(status->chains & BIT(i)) || status->chain_signal[i] >= 0) continue; status->signal = max(status->signal, status->chain_signal[i]); } } 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 { skb_pull(skb, hdr_gap); if (!hdr_trans && status->amsdu) { memmove(skb->data + 2, skb->data, ieee80211_get_hdrlen_from_skb(skb)); 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; } mt792x_mac_assoc_rssi(dev, skb); 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->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl); status->qos_ctl = qos_ctl; return 0; } void mt7921_mac_add_txs(struct mt792x_dev *dev, void *data) { struct mt792x_link_sta *mlink; struct mt76_wcid *wcid; __le32 *txs_data = data; u16 wcidx; u8 pid; if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) > 1) return; 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_FIRST) return; if (wcidx >= MT792x_WTBL_SIZE) return; rcu_read_lock(); wcid = rcu_dereference(dev->mt76.wcid[wcidx]); if (!wcid) goto out; mlink = container_of(wcid, struct mt792x_link_sta, wcid); mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data); if (!wcid->sta) goto out; spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&mlink->wcid.poll_list)) list_add_tail(&mlink->wcid.poll_list, &dev->mt76.sta_poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); out: rcu_read_unlock(); } static void mt7921_mac_tx_free(struct mt792x_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; struct mt76_wcid *wcid = NULL; struct sk_buff *skb, *tmp; void *end = data + len; LIST_HEAD(free_list); bool wake = false; u8 i, count; /* 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); count = le16_get_bits(free->ctrl, MT_TX_FREE_MSDU_CNT); if (WARN_ON_ONCE((void *)&tx_info[count] > end)) return; for (i = 0; i < count; i++) { u32 msdu, info = le32_to_cpu(tx_info[i]); u8 stat; /* 1'b1: new wcid pair. * 1'b0: msdu_id with the same 'wcid pair' as above. */ if (info & MT_TX_FREE_PAIR) { struct mt792x_link_sta *mlink; u16 idx; count++; idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info); wcid = rcu_dereference(dev->mt76.wcid[idx]); sta = wcid_to_sta(wcid); if (!sta) continue; mlink = container_of(wcid, struct mt792x_link_sta, wcid); spin_lock_bh(&mdev->sta_poll_lock); if (list_empty(&mlink->wcid.poll_list)) list_add_tail(&mlink->wcid.poll_list, &mdev->sta_poll_list); spin_unlock_bh(&mdev->sta_poll_lock); continue; } msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); stat = FIELD_GET(MT_TX_FREE_STATUS, info); if (wcid) { wcid->stats.tx_retries += FIELD_GET(MT_TX_FREE_COUNT, info) - 1; wcid->stats.tx_failed += !!stat; } txwi = mt76_token_release(mdev, msdu, &wake); if (!txwi) continue; mt76_connac2_txwi_free(mdev, txwi, sta, &free_list); } if (wake) mt76_set_tx_blocked(&dev->mt76, false); list_for_each_entry_safe(skb, tmp, &free_list, list) { skb_list_del_init(skb); napi_consume_skb(skb, 1); } rcu_read_lock(); mt7921_mac_sta_poll(dev); rcu_read_unlock(); mt76_worker_schedule(&dev->mt76.tx_worker); } bool mt7921_rx_check(struct mt76_dev *mdev, void *data, int len) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_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: /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ mt7921_mac_tx_free(dev, data, len); /* mmio */ return false; case PKT_TYPE_TXS: for (rxd += 2; rxd + 8 <= end; rxd += 8) mt7921_mac_add_txs(dev, rxd); return false; default: return true; } } EXPORT_SYMBOL_GPL(mt7921_rx_check); void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, struct sk_buff *skb, u32 *info) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); __le32 *rxd = (__le32 *)skb->data; __le32 *end = (__le32 *)&skb->data[skb->len]; enum rx_pkt_type type; u16 flag; type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); flag = le32_get_bits(rxd[0], MT_RXD0_PKT_FLAG); if (type == PKT_TYPE_RX_EVENT && flag == 0x1) type = PKT_TYPE_NORMAL_MCU; switch (type) { case PKT_TYPE_TXRX_NOTIFY: /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ mt7921_mac_tx_free(dev, skb->data, skb->len); napi_consume_skb(skb, 1); break; case PKT_TYPE_RX_EVENT: mt7921_mcu_rx_event(dev, skb); break; case PKT_TYPE_TXS: for (rxd += 2; rxd + 8 <= end; rxd += 8) mt7921_mac_add_txs(dev, rxd); dev_kfree_skb(skb); break; case PKT_TYPE_NORMAL_MCU: case PKT_TYPE_NORMAL: if (!mt7921_mac_fill_rx(dev, skb)) { mt76_rx(&dev->mt76, q, skb); return; } fallthrough; default: dev_kfree_skb(skb); break; } } EXPORT_SYMBOL_GPL(mt7921_queue_rx_skb); static void mt7921_vif_connect_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) { struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; struct mt792x_dev *dev = mvif->phy->dev; struct ieee80211_hw *hw = mt76_hw(dev); if (vif->type == NL80211_IFTYPE_STATION) ieee80211_disconnect(vif, true); mt76_connac_mcu_uni_add_dev(&dev->mphy, &vif->bss_conf, &mvif->sta.deflink.wcid, true); mt7921_mcu_set_tx(dev, vif); if (vif->type == NL80211_IFTYPE_AP) { mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.deflink.wcid, true, NULL); mt7921_mcu_sta_update(dev, NULL, vif, true, MT76_STA_INFO_STATE_NONE); mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true); } } /* system error recovery */ void mt7921_mac_reset_work(struct work_struct *work) { struct mt792x_dev *dev = container_of(work, struct mt792x_dev, reset_work); struct ieee80211_hw *hw = mt76_hw(dev); struct mt76_connac_pm *pm = &dev->pm; int i, ret; dev_dbg(dev->mt76.dev, "chip reset\n"); set_bit(MT76_RESET, &dev->mphy.state); dev->hw_full_reset = true; ieee80211_stop_queues(hw); cancel_delayed_work_sync(&dev->mphy.mac_work); cancel_delayed_work_sync(&pm->ps_work); cancel_work_sync(&pm->wake_work); for (i = 0; i < 10; i++) { mutex_lock(&dev->mt76.mutex); ret = mt792x_dev_reset(dev); mutex_unlock(&dev->mt76.mutex); if (!ret) break; } if (i == 10) dev_err(dev->mt76.dev, "chip reset failed\n"); if (test_and_clear_bit(MT76_HW_SCANNING, &dev->mphy.state)) { struct cfg80211_scan_info info = { .aborted = true, }; ieee80211_scan_completed(dev->mphy.hw, &info); } dev->hw_full_reset = false; clear_bit(MT76_RESET, &dev->mphy.state); pm->suspended = false; ieee80211_wake_queues(hw); ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL, mt7921_vif_connect_iter, NULL); mt76_connac_power_save_sched(&dev->mt76.phy, pm); } void mt7921_coredump_work(struct work_struct *work) { struct mt792x_dev *dev; char *dump, *data; dev = (struct mt792x_dev *)container_of(work, struct mt792x_dev, coredump.work.work); if (time_is_after_jiffies(dev->coredump.last_activity + 4 * MT76_CONNAC_COREDUMP_TIMEOUT)) { queue_delayed_work(dev->mt76.wq, &dev->coredump.work, MT76_CONNAC_COREDUMP_TIMEOUT); return; } dump = vzalloc(MT76_CONNAC_COREDUMP_SZ); data = dump; while (true) { struct sk_buff *skb; spin_lock_bh(&dev->mt76.lock); skb = __skb_dequeue(&dev->coredump.msg_list); spin_unlock_bh(&dev->mt76.lock); if (!skb) break; skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd)); if (!dump || data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) { dev_kfree_skb(skb); continue; } memcpy(data, skb->data, skb->len); data += skb->len; dev_kfree_skb(skb); } if (dump) dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ, GFP_KERNEL); mt792x_reset(&dev->mt76); } /* usb_sdio */ static void mt7921_usb_sdio_write_txwi(struct mt792x_dev *dev, struct mt76_wcid *wcid, enum mt76_txq_id qid, struct ieee80211_sta *sta, struct ieee80211_key_conf *key, int pid, struct sk_buff *skb) { __le32 *txwi = (__le32 *)(skb->data - MT_SDIO_TXD_SIZE); memset(txwi, 0, MT_SDIO_TXD_SIZE); mt76_connac2_mac_write_txwi(&dev->mt76, txwi, skb, wcid, key, pid, qid, 0); skb_push(skb, MT_SDIO_TXD_SIZE); } int mt7921_usb_sdio_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 mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); struct ieee80211_key_conf *key = info->control.hw_key; struct sk_buff *skb = tx_info->skb; int err, pad, pktid, type; if (unlikely(tx_info->skb->len <= ETH_HLEN)) return -EINVAL; err = skb_cow_head(skb, MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE); if (err) return err; if (!wcid) wcid = &dev->mt76.global_wcid; if (sta) { struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; if (time_after(jiffies, msta->deflink.last_txs + HZ / 4)) { info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; msta->deflink.last_txs = jiffies; } } pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb); mt7921_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, skb); type = mt76_is_sdio(mdev) ? MT7921_SDIO_DATA : 0; mt792x_skb_add_usb_sdio_hdr(dev, skb, type); pad = round_up(skb->len, 4) - skb->len; if (mt76_is_usb(mdev)) pad += 4; err = mt76_skb_adjust_pad(skb, pad); if (err) /* Release pktid in case of error. */ idr_remove(&wcid->pktid, pktid); return err; } EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_prepare_skb); void mt7921_usb_sdio_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e) { __le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE); unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; struct ieee80211_sta *sta; struct mt76_wcid *wcid; u16 idx; idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX); wcid = rcu_dereference(mdev->wcid[idx]); sta = wcid_to_sta(wcid); if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE))) mt76_connac2_tx_check_aggr(sta, txwi); skb_pull(e->skb, headroom); mt76_tx_complete_skb(mdev, e->wcid, e->skb); } EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_complete_skb); bool mt7921_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); mt792x_mutex_acquire(dev); mt7921_mac_sta_poll(dev); mt792x_mutex_release(dev); return false; } EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_status_data); #if IS_ENABLED(CONFIG_IPV6) void mt7921_set_ipv6_ns_work(struct work_struct *work) { struct mt792x_dev *dev = container_of(work, struct mt792x_dev, ipv6_ns_work); struct sk_buff *skb; int ret = 0; do { skb = skb_dequeue(&dev->ipv6_ns_list); if (!skb) break; mt792x_mutex_acquire(dev); ret = mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD(OFFLOAD), true); mt792x_mutex_release(dev); } while (!ret); if (ret) skb_queue_purge(&dev->ipv6_ns_list); } #endif
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