Path: blob/main/sys/contrib/dev/mediatek/mt76/mt7603/mac.c
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// SPDX-License-Identifier: ISC12#include <linux/etherdevice.h>3#include <linux/timekeeping.h>4#include "mt7603.h"5#include "mac.h"6#include "../trace.h"78#define MT_PSE_PAGE_SIZE 128910static u3211mt7603_ac_queue_mask0(u32 mask)12{13u32 ret = 0;1415ret |= GENMASK(3, 0) * !!(mask & BIT(0));16ret |= GENMASK(8, 5) * !!(mask & BIT(1));17ret |= GENMASK(13, 10) * !!(mask & BIT(2));18ret |= GENMASK(19, 16) * !!(mask & BIT(3));19return ret;20}2122static void23mt76_stop_tx_ac(struct mt7603_dev *dev, u32 mask)24{25mt76_set(dev, MT_WF_ARB_TX_STOP_0, mt7603_ac_queue_mask0(mask));26}2728static void29mt76_start_tx_ac(struct mt7603_dev *dev, u32 mask)30{31mt76_set(dev, MT_WF_ARB_TX_START_0, mt7603_ac_queue_mask0(mask));32}3334void mt7603_mac_reset_counters(struct mt7603_dev *dev)35{36int i;3738for (i = 0; i < 2; i++)39mt76_rr(dev, MT_TX_AGG_CNT(i));4041memset(dev->mphy.aggr_stats, 0, sizeof(dev->mphy.aggr_stats));42}4344void mt7603_mac_set_timing(struct mt7603_dev *dev)45{46u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) |47FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48);48u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) |49FIELD_PREP(MT_TIMEOUT_VAL_CCA, 24);50int offset = 3 * dev->coverage_class;51u32 reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) |52FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset);53bool is_5ghz = dev->mphy.chandef.chan->band == NL80211_BAND_5GHZ;54int sifs;55u32 val;5657if (is_5ghz)58sifs = 16;59else60sifs = 10;6162mt76_set(dev, MT_ARB_SCR,63MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);64udelay(1);6566mt76_wr(dev, MT_TIMEOUT_CCK, cck + reg_offset);67mt76_wr(dev, MT_TIMEOUT_OFDM, ofdm + reg_offset);68mt76_wr(dev, MT_IFS,69FIELD_PREP(MT_IFS_EIFS, 360) |70FIELD_PREP(MT_IFS_RIFS, 2) |71FIELD_PREP(MT_IFS_SIFS, sifs) |72FIELD_PREP(MT_IFS_SLOT, dev->slottime));7374if (dev->slottime < 20 || is_5ghz)75val = MT7603_CFEND_RATE_DEFAULT;76else77val = MT7603_CFEND_RATE_11B;7879mt76_rmw_field(dev, MT_AGG_CONTROL, MT_AGG_CONTROL_CFEND_RATE, val);8081mt76_clear(dev, MT_ARB_SCR,82MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);83}8485static void86mt7603_wtbl_update(struct mt7603_dev *dev, int idx, u32 mask)87{88mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX,89FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask);9091mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);92}9394static u3295mt7603_wtbl1_addr(int idx)96{97return MT_WTBL1_BASE + idx * MT_WTBL1_SIZE;98}99100static u32101mt7603_wtbl2_addr(int idx)102{103/* Mapped to WTBL2 */104return MT_PCIE_REMAP_BASE_1 + idx * MT_WTBL2_SIZE;105}106107static u32108mt7603_wtbl3_addr(int idx)109{110u32 base = mt7603_wtbl2_addr(MT7603_WTBL_SIZE);111112return base + idx * MT_WTBL3_SIZE;113}114115static u32116mt7603_wtbl4_addr(int idx)117{118u32 base = mt7603_wtbl3_addr(MT7603_WTBL_SIZE);119120return base + idx * MT_WTBL4_SIZE;121}122123void mt7603_wtbl_init(struct mt7603_dev *dev, int idx, int vif,124const u8 *mac_addr)125{126const void *_mac = mac_addr;127u32 addr = mt7603_wtbl1_addr(idx);128u32 w0 = 0, w1 = 0;129int i;130131if (_mac) {132w0 = FIELD_PREP(MT_WTBL1_W0_ADDR_HI,133get_unaligned_le16(_mac + 4));134w1 = FIELD_PREP(MT_WTBL1_W1_ADDR_LO,135get_unaligned_le32(_mac));136}137138if (vif < 0)139vif = 0;140else141w0 |= MT_WTBL1_W0_RX_CHECK_A1;142w0 |= FIELD_PREP(MT_WTBL1_W0_MUAR_IDX, vif);143144mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);145146mt76_set(dev, addr + 0 * 4, w0);147mt76_set(dev, addr + 1 * 4, w1);148mt76_set(dev, addr + 2 * 4, MT_WTBL1_W2_ADMISSION_CONTROL);149150mt76_stop_tx_ac(dev, GENMASK(3, 0));151addr = mt7603_wtbl2_addr(idx);152for (i = 0; i < MT_WTBL2_SIZE; i += 4)153mt76_wr(dev, addr + i, 0);154mt7603_wtbl_update(dev, idx, MT_WTBL_UPDATE_WTBL2);155mt76_start_tx_ac(dev, GENMASK(3, 0));156157addr = mt7603_wtbl3_addr(idx);158for (i = 0; i < MT_WTBL3_SIZE; i += 4)159mt76_wr(dev, addr + i, 0);160161addr = mt7603_wtbl4_addr(idx);162for (i = 0; i < MT_WTBL4_SIZE; i += 4)163mt76_wr(dev, addr + i, 0);164165mt7603_wtbl_update(dev, idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR);166}167168static void169mt7603_wtbl_set_skip_tx(struct mt7603_dev *dev, int idx, bool enabled)170{171u32 addr = mt7603_wtbl1_addr(idx);172u32 val = mt76_rr(dev, addr + 3 * 4);173174val &= ~MT_WTBL1_W3_SKIP_TX;175val |= enabled * MT_WTBL1_W3_SKIP_TX;176177mt76_wr(dev, addr + 3 * 4, val);178}179180void mt7603_filter_tx(struct mt7603_dev *dev, int mac_idx, int idx, bool abort)181{182u32 flush_mask;183int i, port, queue;184185if (abort) {186port = 3; /* PSE */187queue = 8; /* free queue */188} else {189port = 0; /* HIF */190queue = 1; /* MCU queue */191}192193mt7603_wtbl_set_skip_tx(dev, idx, true);194195mt76_wr(dev, MT_TX_ABORT, MT_TX_ABORT_EN |196FIELD_PREP(MT_TX_ABORT_WCID, idx));197198flush_mask = MT_WF_ARB_TX_FLUSH_AC0 |199MT_WF_ARB_TX_FLUSH_AC1 |200MT_WF_ARB_TX_FLUSH_AC2 |201MT_WF_ARB_TX_FLUSH_AC3;202flush_mask <<= mac_idx;203204mt76_wr(dev, MT_WF_ARB_TX_FLUSH_0, flush_mask);205mt76_poll(dev, MT_WF_ARB_TX_FLUSH_0, flush_mask, 0, 20000);206mt76_wr(dev, MT_WF_ARB_TX_START_0, flush_mask);207208mt76_wr(dev, MT_TX_ABORT, 0);209210for (i = 0; i < 4; i++) {211mt76_wr(dev, MT_DMA_FQCR0, MT_DMA_FQCR0_BUSY |212FIELD_PREP(MT_DMA_FQCR0_TARGET_WCID, idx) |213FIELD_PREP(MT_DMA_FQCR0_TARGET_QID, i) |214FIELD_PREP(MT_DMA_FQCR0_DEST_PORT_ID, port) |215FIELD_PREP(MT_DMA_FQCR0_DEST_QUEUE_ID, queue));216217mt76_poll(dev, MT_DMA_FQCR0, MT_DMA_FQCR0_BUSY, 0, 5000);218}219220WARN_ON_ONCE(mt76_rr(dev, MT_DMA_FQCR0) & MT_DMA_FQCR0_BUSY);221222mt7603_wtbl_set_skip_tx(dev, idx, false);223}224225void mt7603_wtbl_set_smps(struct mt7603_dev *dev, struct mt7603_sta *sta,226bool enabled)227{228u32 addr = mt7603_wtbl1_addr(sta->wcid.idx);229230if (sta->smps == enabled)231return;232233mt76_rmw_field(dev, addr + 2 * 4, MT_WTBL1_W2_SMPS, enabled);234sta->smps = enabled;235}236237void mt7603_wtbl_set_ps(struct mt7603_dev *dev, struct mt7603_sta *sta,238bool enabled)239{240int idx = sta->wcid.idx;241u32 addr;242243spin_lock_bh(&dev->ps_lock);244245if (sta->ps == enabled)246goto out;247248mt76_wr(dev, MT_PSE_RTA,249FIELD_PREP(MT_PSE_RTA_TAG_ID, idx) |250FIELD_PREP(MT_PSE_RTA_PORT_ID, 0) |251FIELD_PREP(MT_PSE_RTA_QUEUE_ID, 1) |252FIELD_PREP(MT_PSE_RTA_REDIRECT_EN, enabled) |253MT_PSE_RTA_WRITE | MT_PSE_RTA_BUSY);254255mt76_poll(dev, MT_PSE_RTA, MT_PSE_RTA_BUSY, 0, 5000);256257if (enabled)258mt7603_filter_tx(dev, sta->vif->idx, idx, false);259260addr = mt7603_wtbl1_addr(idx);261mt76_set(dev, MT_WTBL1_OR, MT_WTBL1_OR_PSM_WRITE);262mt76_rmw(dev, addr + 3 * 4, MT_WTBL1_W3_POWER_SAVE,263enabled * MT_WTBL1_W3_POWER_SAVE);264mt76_clear(dev, MT_WTBL1_OR, MT_WTBL1_OR_PSM_WRITE);265sta->ps = enabled;266267out:268spin_unlock_bh(&dev->ps_lock);269}270271void mt7603_wtbl_clear(struct mt7603_dev *dev, int idx)272{273int wtbl2_frame_size = MT_PSE_PAGE_SIZE / MT_WTBL2_SIZE;274int wtbl2_frame = idx / wtbl2_frame_size;275int wtbl2_entry = idx % wtbl2_frame_size;276277int wtbl3_base_frame = MT_WTBL3_OFFSET / MT_PSE_PAGE_SIZE;278int wtbl3_frame_size = MT_PSE_PAGE_SIZE / MT_WTBL3_SIZE;279int wtbl3_frame = wtbl3_base_frame + idx / wtbl3_frame_size;280int wtbl3_entry = (idx % wtbl3_frame_size) * 2;281282int wtbl4_base_frame = MT_WTBL4_OFFSET / MT_PSE_PAGE_SIZE;283int wtbl4_frame_size = MT_PSE_PAGE_SIZE / MT_WTBL4_SIZE;284int wtbl4_frame = wtbl4_base_frame + idx / wtbl4_frame_size;285int wtbl4_entry = idx % wtbl4_frame_size;286287u32 addr = MT_WTBL1_BASE + idx * MT_WTBL1_SIZE;288int i;289290mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);291292mt76_wr(dev, addr + 0 * 4,293MT_WTBL1_W0_RX_CHECK_A1 |294MT_WTBL1_W0_RX_CHECK_A2 |295MT_WTBL1_W0_RX_VALID);296mt76_wr(dev, addr + 1 * 4, 0);297mt76_wr(dev, addr + 2 * 4, 0);298299mt76_set(dev, MT_WTBL1_OR, MT_WTBL1_OR_PSM_WRITE);300301mt76_wr(dev, addr + 3 * 4,302FIELD_PREP(MT_WTBL1_W3_WTBL2_FRAME_ID, wtbl2_frame) |303FIELD_PREP(MT_WTBL1_W3_WTBL2_ENTRY_ID, wtbl2_entry) |304FIELD_PREP(MT_WTBL1_W3_WTBL4_FRAME_ID, wtbl4_frame) |305MT_WTBL1_W3_I_PSM | MT_WTBL1_W3_KEEP_I_PSM);306mt76_wr(dev, addr + 4 * 4,307FIELD_PREP(MT_WTBL1_W4_WTBL3_FRAME_ID, wtbl3_frame) |308FIELD_PREP(MT_WTBL1_W4_WTBL3_ENTRY_ID, wtbl3_entry) |309FIELD_PREP(MT_WTBL1_W4_WTBL4_ENTRY_ID, wtbl4_entry));310311mt76_clear(dev, MT_WTBL1_OR, MT_WTBL1_OR_PSM_WRITE);312313addr = mt7603_wtbl2_addr(idx);314315/* Clear BA information */316mt76_wr(dev, addr + (15 * 4), 0);317318mt76_stop_tx_ac(dev, GENMASK(3, 0));319for (i = 2; i <= 4; i++)320mt76_wr(dev, addr + (i * 4), 0);321mt7603_wtbl_update(dev, idx, MT_WTBL_UPDATE_WTBL2);322mt76_start_tx_ac(dev, GENMASK(3, 0));323324mt7603_wtbl_update(dev, idx, MT_WTBL_UPDATE_RX_COUNT_CLEAR);325mt7603_wtbl_update(dev, idx, MT_WTBL_UPDATE_TX_COUNT_CLEAR);326mt7603_wtbl_update(dev, idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR);327}328329void mt7603_wtbl_update_cap(struct mt7603_dev *dev, struct ieee80211_sta *sta)330{331struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;332int idx = msta->wcid.idx;333u8 ampdu_density;334u32 addr;335u32 val;336337addr = mt7603_wtbl1_addr(idx);338339ampdu_density = sta->deflink.ht_cap.ampdu_density;340if (ampdu_density < IEEE80211_HT_MPDU_DENSITY_4)341ampdu_density = IEEE80211_HT_MPDU_DENSITY_4;342343val = mt76_rr(dev, addr + 2 * 4);344val &= MT_WTBL1_W2_KEY_TYPE | MT_WTBL1_W2_ADMISSION_CONTROL;345val |= FIELD_PREP(MT_WTBL1_W2_AMPDU_FACTOR,346sta->deflink.ht_cap.ampdu_factor) |347FIELD_PREP(MT_WTBL1_W2_MPDU_DENSITY,348sta->deflink.ht_cap.ampdu_density) |349MT_WTBL1_W2_TXS_BAF_REPORT;350351if (sta->deflink.ht_cap.cap)352val |= MT_WTBL1_W2_HT;353if (sta->deflink.vht_cap.cap)354val |= MT_WTBL1_W2_VHT;355356mt76_wr(dev, addr + 2 * 4, val);357358addr = mt7603_wtbl2_addr(idx);359val = mt76_rr(dev, addr + 9 * 4);360val &= ~(MT_WTBL2_W9_SHORT_GI_20 | MT_WTBL2_W9_SHORT_GI_40 |361MT_WTBL2_W9_SHORT_GI_80);362if (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20)363val |= MT_WTBL2_W9_SHORT_GI_20;364if (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40)365val |= MT_WTBL2_W9_SHORT_GI_40;366mt76_wr(dev, addr + 9 * 4, val);367}368369void mt7603_mac_rx_ba_reset(struct mt7603_dev *dev, void *addr, u8 tid)370{371mt76_wr(dev, MT_BA_CONTROL_0, get_unaligned_le32(addr));372mt76_wr(dev, MT_BA_CONTROL_1,373(get_unaligned_le16(addr + 4) |374FIELD_PREP(MT_BA_CONTROL_1_TID, tid) |375MT_BA_CONTROL_1_RESET));376}377378void mt7603_mac_tx_ba_reset(struct mt7603_dev *dev, int wcid, int tid,379int ba_size)380{381u32 addr = mt7603_wtbl2_addr(wcid);382u32 tid_mask = FIELD_PREP(MT_WTBL2_W15_BA_EN_TIDS, BIT(tid)) |383(MT_WTBL2_W15_BA_WIN_SIZE <<384(tid * MT_WTBL2_W15_BA_WIN_SIZE_SHIFT));385u32 tid_val;386int i;387388if (ba_size < 0) {389/* disable */390mt76_clear(dev, addr + (15 * 4), tid_mask);391return;392}393394for (i = 7; i > 0; i--) {395if (ba_size >= MT_AGG_SIZE_LIMIT(i))396break;397}398399tid_val = FIELD_PREP(MT_WTBL2_W15_BA_EN_TIDS, BIT(tid)) |400i << (tid * MT_WTBL2_W15_BA_WIN_SIZE_SHIFT);401402mt76_rmw(dev, addr + (15 * 4), tid_mask, tid_val);403}404405void mt7603_mac_sta_poll(struct mt7603_dev *dev)406{407static const u8 ac_to_tid[4] = {408[IEEE80211_AC_BE] = 0,409[IEEE80211_AC_BK] = 1,410[IEEE80211_AC_VI] = 4,411[IEEE80211_AC_VO] = 6412};413struct ieee80211_sta *sta;414struct mt7603_sta *msta;415u32 total_airtime = 0;416u32 airtime[4];417u32 addr;418int i;419420rcu_read_lock();421422while (1) {423bool clear = false;424425spin_lock_bh(&dev->mt76.sta_poll_lock);426if (list_empty(&dev->mt76.sta_poll_list)) {427spin_unlock_bh(&dev->mt76.sta_poll_lock);428break;429}430431msta = list_first_entry(&dev->mt76.sta_poll_list,432struct mt7603_sta, wcid.poll_list);433list_del_init(&msta->wcid.poll_list);434spin_unlock_bh(&dev->mt76.sta_poll_lock);435436addr = mt7603_wtbl4_addr(msta->wcid.idx);437for (i = 0; i < 4; i++) {438u32 airtime_last = msta->tx_airtime_ac[i];439440msta->tx_airtime_ac[i] = mt76_rr(dev, addr + i * 8);441airtime[i] = msta->tx_airtime_ac[i] - airtime_last;442airtime[i] *= 32;443total_airtime += airtime[i];444445if (msta->tx_airtime_ac[i] & BIT(22))446clear = true;447}448449if (clear) {450mt7603_wtbl_update(dev, msta->wcid.idx,451MT_WTBL_UPDATE_ADM_COUNT_CLEAR);452memset(msta->tx_airtime_ac, 0,453sizeof(msta->tx_airtime_ac));454}455456if (!msta->wcid.sta)457continue;458459sta = container_of((void *)msta, struct ieee80211_sta, drv_priv);460for (i = 0; i < 4; i++) {461struct mt76_queue *q = dev->mphy.q_tx[i];462u8 qidx = q->hw_idx;463u8 tid = ac_to_tid[i];464u32 txtime = airtime[qidx];465466if (!txtime)467continue;468469ieee80211_sta_register_airtime(sta, tid, txtime, 0);470}471}472473rcu_read_unlock();474475if (!total_airtime)476return;477478spin_lock_bh(&dev->mt76.cc_lock);479dev->mphy.chan_state->cc_tx += total_airtime;480spin_unlock_bh(&dev->mt76.cc_lock);481}482483static struct mt76_wcid *484mt7603_rx_get_wcid(struct mt7603_dev *dev, u8 idx, bool unicast)485{486struct mt7603_sta *sta;487struct mt76_wcid *wcid;488489wcid = mt76_wcid_ptr(dev, idx);490if (unicast || !wcid)491return wcid;492493if (!wcid->sta)494return NULL;495496sta = container_of(wcid, struct mt7603_sta, wcid);497if (!sta->vif)498return NULL;499500return &sta->vif->sta.wcid;501}502503int504mt7603_mac_fill_rx(struct mt7603_dev *dev, struct sk_buff *skb)505{506struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb;507struct ieee80211_supported_band *sband;508struct ieee80211_hdr *hdr;509__le32 *rxd = (__le32 *)skb->data;510u32 rxd0 = le32_to_cpu(rxd[0]);511u32 rxd1 = le32_to_cpu(rxd[1]);512u32 rxd2 = le32_to_cpu(rxd[2]);513bool unicast = rxd1 & MT_RXD1_NORMAL_U2M;514bool insert_ccmp_hdr = false;515bool remove_pad;516int idx;517int i;518519memset(status, 0, sizeof(*status));520521i = FIELD_GET(MT_RXD1_NORMAL_CH_FREQ, rxd1);522sband = (i & 1) ? &dev->mphy.sband_5g.sband : &dev->mphy.sband_2g.sband;523i >>= 1;524525idx = FIELD_GET(MT_RXD2_NORMAL_WLAN_IDX, rxd2);526status->wcid = mt7603_rx_get_wcid(dev, idx, unicast);527528status->band = sband->band;529if (i < sband->n_channels)530status->freq = sband->channels[i].center_freq;531532if (rxd2 & MT_RXD2_NORMAL_FCS_ERR)533status->flag |= RX_FLAG_FAILED_FCS_CRC;534535if (rxd2 & MT_RXD2_NORMAL_TKIP_MIC_ERR)536status->flag |= RX_FLAG_MMIC_ERROR;537538/* ICV error or CCMP/BIP/WPI MIC error */539if (rxd2 & MT_RXD2_NORMAL_ICV_ERR)540status->flag |= RX_FLAG_ONLY_MONITOR;541542if (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2) != 0 &&543!(rxd2 & (MT_RXD2_NORMAL_CLM | MT_RXD2_NORMAL_CM))) {544status->flag |= RX_FLAG_DECRYPTED;545status->flag |= RX_FLAG_IV_STRIPPED;546status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED;547}548549remove_pad = rxd1 & MT_RXD1_NORMAL_HDR_OFFSET;550551if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR)552return -EINVAL;553554if (!sband->channels)555return -EINVAL;556557rxd += 4;558if (rxd0 & MT_RXD0_NORMAL_GROUP_4) {559rxd += 4;560if ((u8 *)rxd - skb->data >= skb->len)561return -EINVAL;562}563if (rxd0 & MT_RXD0_NORMAL_GROUP_1) {564u8 *data = (u8 *)rxd;565566if (status->flag & RX_FLAG_DECRYPTED) {567switch (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2)) {568case MT_CIPHER_AES_CCMP:569case MT_CIPHER_CCMP_CCX:570case MT_CIPHER_CCMP_256:571insert_ccmp_hdr =572FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2);573fallthrough;574case MT_CIPHER_TKIP:575case MT_CIPHER_TKIP_NO_MIC:576case MT_CIPHER_GCMP:577case MT_CIPHER_GCMP_256:578status->iv[0] = data[5];579status->iv[1] = data[4];580status->iv[2] = data[3];581status->iv[3] = data[2];582status->iv[4] = data[1];583status->iv[5] = data[0];584break;585default:586break;587}588}589590rxd += 4;591if ((u8 *)rxd - skb->data >= skb->len)592return -EINVAL;593}594if (rxd0 & MT_RXD0_NORMAL_GROUP_2) {595status->timestamp = le32_to_cpu(rxd[0]);596status->flag |= RX_FLAG_MACTIME_START;597598if (!(rxd2 & (MT_RXD2_NORMAL_NON_AMPDU_SUB |599MT_RXD2_NORMAL_NON_AMPDU))) {600status->flag |= RX_FLAG_AMPDU_DETAILS;601602/* all subframes of an A-MPDU have the same timestamp */603if (dev->rx_ampdu_ts != status->timestamp) {604if (!++dev->ampdu_ref)605dev->ampdu_ref++;606}607dev->rx_ampdu_ts = status->timestamp;608609status->ampdu_ref = dev->ampdu_ref;610}611612rxd += 2;613if ((u8 *)rxd - skb->data >= skb->len)614return -EINVAL;615}616if (rxd0 & MT_RXD0_NORMAL_GROUP_3) {617u32 rxdg0 = le32_to_cpu(rxd[0]);618u32 rxdg3 = le32_to_cpu(rxd[3]);619bool cck = false;620621i = FIELD_GET(MT_RXV1_TX_RATE, rxdg0);622switch (FIELD_GET(MT_RXV1_TX_MODE, rxdg0)) {623case MT_PHY_TYPE_CCK:624cck = true;625fallthrough;626case MT_PHY_TYPE_OFDM:627i = mt76_get_rate(&dev->mt76, sband, i, cck);628break;629case MT_PHY_TYPE_HT_GF:630case MT_PHY_TYPE_HT:631status->encoding = RX_ENC_HT;632if (i > 15)633return -EINVAL;634break;635default:636return -EINVAL;637}638639if (rxdg0 & MT_RXV1_HT_SHORT_GI)640status->enc_flags |= RX_ENC_FLAG_SHORT_GI;641if (rxdg0 & MT_RXV1_HT_AD_CODE)642status->enc_flags |= RX_ENC_FLAG_LDPC;643644status->enc_flags |= RX_ENC_FLAG_STBC_MASK *645FIELD_GET(MT_RXV1_HT_STBC, rxdg0);646647status->rate_idx = i;648649status->chains = dev->mphy.antenna_mask;650status->chain_signal[0] = FIELD_GET(MT_RXV4_IB_RSSI0, rxdg3) +651dev->rssi_offset[0];652status->chain_signal[1] = FIELD_GET(MT_RXV4_IB_RSSI1, rxdg3) +653dev->rssi_offset[1];654655if (FIELD_GET(MT_RXV1_FRAME_MODE, rxdg0) == 1)656status->bw = RATE_INFO_BW_40;657658rxd += 6;659if ((u8 *)rxd - skb->data >= skb->len)660return -EINVAL;661} else {662return -EINVAL;663}664665skb_pull(skb, (u8 *)rxd - skb->data + 2 * remove_pad);666667if (insert_ccmp_hdr) {668u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1);669670mt76_insert_ccmp_hdr(skb, key_id);671}672673hdr = (struct ieee80211_hdr *)skb->data;674if (!status->wcid || !ieee80211_is_data_qos(hdr->frame_control))675return 0;676677status->aggr = unicast &&678!ieee80211_is_qos_nullfunc(hdr->frame_control);679status->qos_ctl = *ieee80211_get_qos_ctl(hdr);680status->seqno = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl));681682return 0;683}684685static u16686mt7603_mac_tx_rate_val(struct mt7603_dev *dev,687const struct ieee80211_tx_rate *rate, bool stbc, u8 *bw)688{689u8 phy, nss, rate_idx;690u16 rateval;691692*bw = 0;693if (rate->flags & IEEE80211_TX_RC_MCS) {694rate_idx = rate->idx;695nss = 1 + (rate->idx >> 3);696phy = MT_PHY_TYPE_HT;697if (rate->flags & IEEE80211_TX_RC_GREEN_FIELD)698phy = MT_PHY_TYPE_HT_GF;699if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)700*bw = 1;701} else {702const struct ieee80211_rate *r;703int band = dev->mphy.chandef.chan->band;704u16 val;705706nss = 1;707r = &mt76_hw(dev)->wiphy->bands[band]->bitrates[rate->idx];708if (rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)709val = r->hw_value_short;710else711val = r->hw_value;712713phy = val >> 8;714rate_idx = val & 0xff;715}716717rateval = (FIELD_PREP(MT_TX_RATE_IDX, rate_idx) |718FIELD_PREP(MT_TX_RATE_MODE, phy));719720if (stbc && nss == 1)721rateval |= MT_TX_RATE_STBC;722723return rateval;724}725726void mt7603_wtbl_set_rates(struct mt7603_dev *dev, struct mt7603_sta *sta,727struct ieee80211_tx_rate *probe_rate,728struct ieee80211_tx_rate *rates)729{730struct ieee80211_tx_rate *ref;731int wcid = sta->wcid.idx;732u32 addr = mt7603_wtbl2_addr(wcid);733bool stbc = false;734int n_rates = sta->n_rates;735u8 bw, bw_prev, bw_idx = 0;736u16 val[4];737u16 probe_val;738u32 w9 = mt76_rr(dev, addr + 9 * 4);739bool rateset;740int i, k;741742if (!mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000))743return;744745for (i = n_rates; i < 4; i++)746rates[i] = rates[n_rates - 1];747748rateset = !(sta->rate_set_tsf & BIT(0));749memcpy(sta->rateset[rateset].rates, rates,750sizeof(sta->rateset[rateset].rates));751if (probe_rate) {752sta->rateset[rateset].probe_rate = *probe_rate;753ref = &sta->rateset[rateset].probe_rate;754} else {755sta->rateset[rateset].probe_rate.idx = -1;756ref = &sta->rateset[rateset].rates[0];757}758759rates = sta->rateset[rateset].rates;760for (i = 0; i < ARRAY_SIZE(sta->rateset[rateset].rates); i++) {761/*762* We don't support switching between short and long GI763* within the rate set. For accurate tx status reporting, we764* need to make sure that flags match.765* For improved performance, avoid duplicate entries by766* decrementing the MCS index if necessary767*/768if ((ref->flags ^ rates[i].flags) & IEEE80211_TX_RC_SHORT_GI)769rates[i].flags ^= IEEE80211_TX_RC_SHORT_GI;770771for (k = 0; k < i; k++) {772if (rates[i].idx != rates[k].idx)773continue;774if ((rates[i].flags ^ rates[k].flags) &775IEEE80211_TX_RC_40_MHZ_WIDTH)776continue;777778if (!rates[i].idx)779continue;780781rates[i].idx--;782}783}784785w9 &= MT_WTBL2_W9_SHORT_GI_20 | MT_WTBL2_W9_SHORT_GI_40 |786MT_WTBL2_W9_SHORT_GI_80;787788val[0] = mt7603_mac_tx_rate_val(dev, &rates[0], stbc, &bw);789bw_prev = bw;790791if (probe_rate) {792probe_val = mt7603_mac_tx_rate_val(dev, probe_rate, stbc, &bw);793if (bw)794bw_idx = 1;795else796bw_prev = 0;797} else {798probe_val = val[0];799}800801w9 |= FIELD_PREP(MT_WTBL2_W9_CC_BW_SEL, bw);802w9 |= FIELD_PREP(MT_WTBL2_W9_BW_CAP, bw);803804val[1] = mt7603_mac_tx_rate_val(dev, &rates[1], stbc, &bw);805if (bw_prev) {806bw_idx = 3;807bw_prev = bw;808}809810val[2] = mt7603_mac_tx_rate_val(dev, &rates[2], stbc, &bw);811if (bw_prev) {812bw_idx = 5;813bw_prev = bw;814}815816val[3] = mt7603_mac_tx_rate_val(dev, &rates[3], stbc, &bw);817if (bw_prev)818bw_idx = 7;819820w9 |= FIELD_PREP(MT_WTBL2_W9_CHANGE_BW_RATE,821bw_idx ? bw_idx - 1 : 7);822823mt76_wr(dev, MT_WTBL_RIUCR0, w9);824825mt76_wr(dev, MT_WTBL_RIUCR1,826FIELD_PREP(MT_WTBL_RIUCR1_RATE0, probe_val) |827FIELD_PREP(MT_WTBL_RIUCR1_RATE1, val[0]) |828FIELD_PREP(MT_WTBL_RIUCR1_RATE2_LO, val[1]));829830mt76_wr(dev, MT_WTBL_RIUCR2,831FIELD_PREP(MT_WTBL_RIUCR2_RATE2_HI, val[1] >> 8) |832FIELD_PREP(MT_WTBL_RIUCR2_RATE3, val[1]) |833FIELD_PREP(MT_WTBL_RIUCR2_RATE4, val[2]) |834FIELD_PREP(MT_WTBL_RIUCR2_RATE5_LO, val[2]));835836mt76_wr(dev, MT_WTBL_RIUCR3,837FIELD_PREP(MT_WTBL_RIUCR3_RATE5_HI, val[2] >> 4) |838FIELD_PREP(MT_WTBL_RIUCR3_RATE6, val[3]) |839FIELD_PREP(MT_WTBL_RIUCR3_RATE7, val[3]));840841mt76_set(dev, MT_LPON_T0CR, MT_LPON_T0CR_MODE); /* TSF read */842sta->rate_set_tsf = (mt76_rr(dev, MT_LPON_UTTR0) & ~BIT(0)) | rateset;843844mt76_wr(dev, MT_WTBL_UPDATE,845FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, wcid) |846MT_WTBL_UPDATE_RATE_UPDATE |847MT_WTBL_UPDATE_TX_COUNT_CLEAR);848849if (!(sta->wcid.tx_info & MT_WCID_TX_INFO_SET))850mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000);851852sta->rate_count = 2 * MT7603_RATE_RETRY * n_rates;853sta->wcid.tx_info |= MT_WCID_TX_INFO_SET;854}855856static enum mt76_cipher_type857mt7603_mac_get_key_info(struct ieee80211_key_conf *key, u8 *key_data)858{859memset(key_data, 0, 32);860if (!key)861return MT_CIPHER_NONE;862863if (key->keylen > 32)864return MT_CIPHER_NONE;865866memcpy(key_data, key->key, key->keylen);867868switch (key->cipher) {869case WLAN_CIPHER_SUITE_WEP40:870return MT_CIPHER_WEP40;871case WLAN_CIPHER_SUITE_WEP104:872return MT_CIPHER_WEP104;873case WLAN_CIPHER_SUITE_TKIP:874/* Rx/Tx MIC keys are swapped */875memcpy(key_data + 16, key->key + 24, 8);876memcpy(key_data + 24, key->key + 16, 8);877return MT_CIPHER_TKIP;878case WLAN_CIPHER_SUITE_CCMP:879return MT_CIPHER_AES_CCMP;880default:881return MT_CIPHER_NONE;882}883}884885int mt7603_wtbl_set_key(struct mt7603_dev *dev, int wcid,886struct ieee80211_key_conf *key)887{888enum mt76_cipher_type cipher;889u32 addr = mt7603_wtbl3_addr(wcid);890u8 key_data[32];891int key_len = sizeof(key_data);892893cipher = mt7603_mac_get_key_info(key, key_data);894if (cipher == MT_CIPHER_NONE && key)895return -EOPNOTSUPP;896897if (key && (cipher == MT_CIPHER_WEP40 || cipher == MT_CIPHER_WEP104)) {898addr += key->keyidx * 16;899key_len = 16;900}901902mt76_wr_copy(dev, addr, key_data, key_len);903904addr = mt7603_wtbl1_addr(wcid);905mt76_rmw_field(dev, addr + 2 * 4, MT_WTBL1_W2_KEY_TYPE, cipher);906if (key)907mt76_rmw_field(dev, addr, MT_WTBL1_W0_KEY_IDX, key->keyidx);908mt76_rmw_field(dev, addr, MT_WTBL1_W0_RX_KEY_VALID, !!key);909910return 0;911}912913static int914mt7603_mac_write_txwi(struct mt7603_dev *dev, __le32 *txwi,915struct sk_buff *skb, enum mt76_txq_id qid,916struct mt76_wcid *wcid, struct ieee80211_sta *sta,917int pid, struct ieee80211_key_conf *key)918{919struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);920struct ieee80211_tx_rate *rate = &info->control.rates[0];921struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;922struct ieee80211_bar *bar = (struct ieee80211_bar *)skb->data;923struct ieee80211_vif *vif = info->control.vif;924struct mt76_queue *q = dev->mphy.q_tx[qid];925struct mt7603_vif *mvif;926int wlan_idx;927int hdr_len = ieee80211_get_hdrlen_from_skb(skb);928int tx_count = 8;929u8 frame_type, frame_subtype;930u16 fc = le16_to_cpu(hdr->frame_control);931u16 seqno = 0;932u8 vif_idx = 0;933u32 val;934u8 bw;935936if (vif) {937mvif = (struct mt7603_vif *)vif->drv_priv;938vif_idx = mvif->idx;939if (vif_idx && qid >= MT_TXQ_BEACON)940vif_idx += 0x10;941}942943if (sta) {944struct mt7603_sta *msta = (struct mt7603_sta *)sta->drv_priv;945946tx_count = msta->rate_count;947}948949if (wcid)950wlan_idx = wcid->idx;951else952wlan_idx = MT7603_WTBL_RESERVED;953954frame_type = (fc & IEEE80211_FCTL_FTYPE) >> 2;955frame_subtype = (fc & IEEE80211_FCTL_STYPE) >> 4;956957val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + MT_TXD_SIZE) |958FIELD_PREP(MT_TXD0_Q_IDX, q->hw_idx);959txwi[0] = cpu_to_le32(val);960961val = MT_TXD1_LONG_FORMAT |962FIELD_PREP(MT_TXD1_OWN_MAC, vif_idx) |963FIELD_PREP(MT_TXD1_TID,964skb->priority & IEEE80211_QOS_CTL_TID_MASK) |965FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) |966FIELD_PREP(MT_TXD1_HDR_INFO, hdr_len / 2) |967FIELD_PREP(MT_TXD1_WLAN_IDX, wlan_idx) |968FIELD_PREP(MT_TXD1_PROTECTED, !!key);969txwi[1] = cpu_to_le32(val);970971if (info->flags & IEEE80211_TX_CTL_NO_ACK)972txwi[1] |= cpu_to_le32(MT_TXD1_NO_ACK);973974val = FIELD_PREP(MT_TXD2_FRAME_TYPE, frame_type) |975FIELD_PREP(MT_TXD2_SUB_TYPE, frame_subtype) |976FIELD_PREP(MT_TXD2_MULTICAST,977is_multicast_ether_addr(hdr->addr1));978txwi[2] = cpu_to_le32(val);979980if (!(info->flags & IEEE80211_TX_CTL_AMPDU))981txwi[2] |= cpu_to_le32(MT_TXD2_BA_DISABLE);982983txwi[4] = 0;984985val = MT_TXD5_TX_STATUS_HOST | MT_TXD5_SW_POWER_MGMT |986FIELD_PREP(MT_TXD5_PID, pid);987txwi[5] = cpu_to_le32(val);988989txwi[6] = 0;990991if (rate->idx >= 0 && rate->count &&992!(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE)) {993bool stbc = info->flags & IEEE80211_TX_CTL_STBC;994u16 rateval = mt7603_mac_tx_rate_val(dev, rate, stbc, &bw);995996txwi[2] |= cpu_to_le32(MT_TXD2_FIX_RATE);997998val = MT_TXD6_FIXED_BW |999FIELD_PREP(MT_TXD6_BW, bw) |1000FIELD_PREP(MT_TXD6_TX_RATE, rateval);1001txwi[6] |= cpu_to_le32(val);10021003if (rate->flags & IEEE80211_TX_RC_SHORT_GI)1004txwi[6] |= cpu_to_le32(MT_TXD6_SGI);10051006if (!(rate->flags & IEEE80211_TX_RC_MCS))1007txwi[2] |= cpu_to_le32(MT_TXD2_BA_DISABLE);10081009tx_count = rate->count;1010}10111012/* use maximum tx count for beacons and buffered multicast */1013if (qid >= MT_TXQ_BEACON)1014tx_count = 0x1f;10151016val = FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count) |1017MT_TXD3_SN_VALID;10181019if (ieee80211_is_data_qos(hdr->frame_control))1020seqno = le16_to_cpu(hdr->seq_ctrl);1021else if (ieee80211_is_back_req(hdr->frame_control))1022seqno = le16_to_cpu(bar->start_seq_num);1023else1024val &= ~MT_TXD3_SN_VALID;10251026val |= FIELD_PREP(MT_TXD3_SEQ, seqno >> 4);10271028txwi[3] = cpu_to_le32(val);10291030if (key) {1031u64 pn = atomic64_inc_return(&key->tx_pn);10321033txwi[3] |= cpu_to_le32(MT_TXD3_PN_VALID);1034txwi[4] = cpu_to_le32(pn & GENMASK(31, 0));1035txwi[5] |= cpu_to_le32(FIELD_PREP(MT_TXD5_PN_HIGH, pn >> 32));1036}10371038txwi[7] = 0;10391040return 0;1041}10421043int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,1044enum mt76_txq_id qid, struct mt76_wcid *wcid,1045struct ieee80211_sta *sta,1046struct mt76_tx_info *tx_info)1047{1048struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);1049struct mt7603_sta *msta = container_of(wcid, struct mt7603_sta, wcid);1050struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);1051struct ieee80211_key_conf *key = info->control.hw_key;1052int pid;10531054if (!wcid)1055wcid = &dev->global_sta.wcid;10561057if (sta) {1058msta = (struct mt7603_sta *)sta->drv_priv;10591060if ((info->flags & (IEEE80211_TX_CTL_NO_PS_BUFFER |1061IEEE80211_TX_CTL_CLEAR_PS_FILT)) ||1062(info->control.flags & IEEE80211_TX_CTRL_PS_RESPONSE))1063mt7603_wtbl_set_ps(dev, msta, false);10641065mt76_tx_check_agg_ssn(sta, tx_info->skb);1066}10671068pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);10691070if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) {1071spin_lock_bh(&dev->mt76.lock);1072mt7603_wtbl_set_rates(dev, msta, &info->control.rates[0],1073msta->rates);1074msta->rate_probe = true;1075spin_unlock_bh(&dev->mt76.lock);1076}10771078mt7603_mac_write_txwi(dev, txwi_ptr, tx_info->skb, qid, wcid,1079sta, pid, key);10801081return 0;1082}10831084static bool1085mt7603_fill_txs(struct mt7603_dev *dev, struct mt7603_sta *sta,1086struct ieee80211_tx_info *info, __le32 *txs_data)1087{1088struct ieee80211_supported_band *sband;1089struct mt7603_rate_set *rs;1090int first_idx = 0, last_idx;1091u32 rate_set_tsf;1092u32 final_rate;1093u32 final_rate_flags;1094bool rs_idx;1095bool ack_timeout;1096bool fixed_rate;1097bool probe;1098bool ampdu;1099bool cck = false;1100int count;1101u32 txs;1102int idx;1103int i;11041105fixed_rate = info->status.rates[0].count;1106probe = !!(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);11071108txs = le32_to_cpu(txs_data[4]);1109ampdu = !fixed_rate && (txs & MT_TXS4_AMPDU);1110count = FIELD_GET(MT_TXS4_TX_COUNT, txs);1111last_idx = FIELD_GET(MT_TXS4_LAST_TX_RATE, txs);11121113txs = le32_to_cpu(txs_data[0]);1114final_rate = FIELD_GET(MT_TXS0_TX_RATE, txs);1115ack_timeout = txs & MT_TXS0_ACK_TIMEOUT;11161117if (!ampdu && (txs & MT_TXS0_RTS_TIMEOUT))1118return false;11191120if (txs & MT_TXS0_QUEUE_TIMEOUT)1121return false;11221123if (!ack_timeout)1124info->flags |= IEEE80211_TX_STAT_ACK;11251126info->status.ampdu_len = 1;1127info->status.ampdu_ack_len = !!(info->flags &1128IEEE80211_TX_STAT_ACK);11291130if (ampdu || (info->flags & IEEE80211_TX_CTL_AMPDU))1131info->flags |= IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_CTL_AMPDU;11321133first_idx = max_t(int, 0, last_idx - (count - 1) / MT7603_RATE_RETRY);11341135if (fixed_rate && !probe) {1136info->status.rates[0].count = count;1137i = 0;1138goto out;1139}11401141rate_set_tsf = READ_ONCE(sta->rate_set_tsf);1142rs_idx = !((u32)(le32_get_bits(txs_data[1], MT_TXS1_F0_TIMESTAMP) -1143rate_set_tsf) < 1000000);1144rs_idx ^= rate_set_tsf & BIT(0);1145rs = &sta->rateset[rs_idx];11461147if (!first_idx && rs->probe_rate.idx >= 0) {1148info->status.rates[0] = rs->probe_rate;11491150spin_lock_bh(&dev->mt76.lock);1151if (sta->rate_probe) {1152mt7603_wtbl_set_rates(dev, sta, NULL,1153sta->rates);1154sta->rate_probe = false;1155}1156spin_unlock_bh(&dev->mt76.lock);1157} else {1158info->status.rates[0] = rs->rates[first_idx / 2];1159}1160info->status.rates[0].count = 0;11611162for (i = 0, idx = first_idx; count && idx <= last_idx; idx++) {1163struct ieee80211_tx_rate *cur_rate;1164int cur_count;11651166cur_rate = &rs->rates[idx / 2];1167cur_count = min_t(int, MT7603_RATE_RETRY, count);1168count -= cur_count;11691170if (idx && (cur_rate->idx != info->status.rates[i].idx ||1171cur_rate->flags != info->status.rates[i].flags)) {1172i++;1173if (i == ARRAY_SIZE(info->status.rates)) {1174i--;1175break;1176}11771178info->status.rates[i] = *cur_rate;1179info->status.rates[i].count = 0;1180}11811182info->status.rates[i].count += cur_count;1183}11841185out:1186final_rate_flags = info->status.rates[i].flags;11871188switch (FIELD_GET(MT_TX_RATE_MODE, final_rate)) {1189case MT_PHY_TYPE_CCK:1190cck = true;1191fallthrough;1192case MT_PHY_TYPE_OFDM:1193if (dev->mphy.chandef.chan->band == NL80211_BAND_5GHZ)1194sband = &dev->mphy.sband_5g.sband;1195else1196sband = &dev->mphy.sband_2g.sband;1197final_rate &= GENMASK(5, 0);1198final_rate = mt76_get_rate(&dev->mt76, sband, final_rate,1199cck);1200final_rate_flags = 0;1201break;1202case MT_PHY_TYPE_HT_GF:1203case MT_PHY_TYPE_HT:1204final_rate_flags |= IEEE80211_TX_RC_MCS;1205final_rate &= GENMASK(5, 0);1206if (final_rate > 15)1207return false;1208break;1209default:1210return false;1211}12121213info->status.rates[i].idx = final_rate;1214info->status.rates[i].flags = final_rate_flags;12151216return true;1217}12181219static bool1220mt7603_mac_add_txs_skb(struct mt7603_dev *dev, struct mt7603_sta *sta, int pid,1221__le32 *txs_data)1222{1223struct mt76_dev *mdev = &dev->mt76;1224struct sk_buff_head list;1225struct sk_buff *skb;12261227if (pid < MT_PACKET_ID_FIRST)1228return false;12291230trace_mac_txdone(mdev, sta->wcid.idx, pid);12311232mt76_tx_status_lock(mdev, &list);1233skb = mt76_tx_status_skb_get(mdev, &sta->wcid, pid, &list);1234if (skb) {1235struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);12361237if (!mt7603_fill_txs(dev, sta, info, txs_data)) {1238info->status.rates[0].count = 0;1239info->status.rates[0].idx = -1;1240}12411242mt76_tx_status_skb_done(mdev, skb, &list);1243}1244mt76_tx_status_unlock(mdev, &list);12451246return !!skb;1247}12481249void mt7603_mac_add_txs(struct mt7603_dev *dev, void *data)1250{1251struct ieee80211_tx_info info = {};1252struct ieee80211_sta *sta = NULL;1253struct mt7603_sta *msta = NULL;1254struct mt76_wcid *wcid;1255__le32 *txs_data = data;1256u8 wcidx;1257u8 pid;12581259pid = le32_get_bits(txs_data[4], MT_TXS4_PID);1260wcidx = le32_get_bits(txs_data[3], MT_TXS3_WCID);12611262if (pid == MT_PACKET_ID_NO_ACK)1263return;12641265rcu_read_lock();12661267wcid = mt76_wcid_ptr(dev, wcidx);1268if (!wcid)1269goto out;12701271msta = container_of(wcid, struct mt7603_sta, wcid);1272sta = wcid_to_sta(wcid);1273mt76_wcid_add_poll(&dev->mt76, &msta->wcid);12741275if (mt7603_mac_add_txs_skb(dev, msta, pid, txs_data))1276goto out;12771278if (wcidx >= MT7603_WTBL_STA || !sta)1279goto out;12801281if (mt7603_fill_txs(dev, msta, &info, txs_data)) {1282spin_lock_bh(&dev->mt76.rx_lock);1283ieee80211_tx_status_noskb(mt76_hw(dev), sta, &info);1284spin_unlock_bh(&dev->mt76.rx_lock);1285}12861287out:1288rcu_read_unlock();1289}12901291void mt7603_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e)1292{1293struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76);1294struct sk_buff *skb = e->skb;12951296if (!e->txwi) {1297dev_kfree_skb_any(skb);1298return;1299}13001301dev->tx_hang_check = 0;1302mt76_tx_complete_skb(mdev, e->wcid, skb);1303}13041305static bool1306wait_for_wpdma(struct mt7603_dev *dev)1307{1308return mt76_poll(dev, MT_WPDMA_GLO_CFG,1309MT_WPDMA_GLO_CFG_TX_DMA_BUSY |1310MT_WPDMA_GLO_CFG_RX_DMA_BUSY,13110, 1000);1312}13131314static void mt7603_pse_reset(struct mt7603_dev *dev)1315{1316/* Clear previous reset result */1317if (!dev->reset_cause[RESET_CAUSE_RESET_FAILED])1318mt76_clear(dev, MT_MCU_DEBUG_RESET, MT_MCU_DEBUG_RESET_PSE_S);13191320/* Reset PSE */1321mt76_set(dev, MT_MCU_DEBUG_RESET, MT_MCU_DEBUG_RESET_PSE);13221323if (!mt76_poll_msec(dev, MT_MCU_DEBUG_RESET,1324MT_MCU_DEBUG_RESET_PSE_S,1325MT_MCU_DEBUG_RESET_PSE_S, 500)) {1326dev->reset_cause[RESET_CAUSE_RESET_FAILED]++;1327mt76_clear(dev, MT_MCU_DEBUG_RESET, MT_MCU_DEBUG_RESET_PSE);1328} else {1329dev->reset_cause[RESET_CAUSE_RESET_FAILED] = 0;1330mt76_clear(dev, MT_MCU_DEBUG_RESET, MT_MCU_DEBUG_RESET_QUEUES);1331}13321333if (dev->reset_cause[RESET_CAUSE_RESET_FAILED] >= 3)1334dev->reset_cause[RESET_CAUSE_RESET_FAILED] = 0;1335}13361337void mt7603_mac_dma_start(struct mt7603_dev *dev)1338{1339mt7603_mac_start(dev);13401341wait_for_wpdma(dev);1342usleep_range(50, 100);13431344mt76_set(dev, MT_WPDMA_GLO_CFG,1345(MT_WPDMA_GLO_CFG_TX_DMA_EN |1346MT_WPDMA_GLO_CFG_RX_DMA_EN |1347FIELD_PREP(MT_WPDMA_GLO_CFG_DMA_BURST_SIZE, 3) |1348MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE));13491350mt7603_irq_enable(dev, MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL);1351}13521353void mt7603_mac_start(struct mt7603_dev *dev)1354{1355mt76_clear(dev, MT_ARB_SCR,1356MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);1357mt76_wr(dev, MT_WF_ARB_TX_START_0, ~0);1358mt76_set(dev, MT_WF_ARB_RQCR, MT_WF_ARB_RQCR_RX_START);1359}13601361void mt7603_mac_stop(struct mt7603_dev *dev)1362{1363mt76_set(dev, MT_ARB_SCR,1364MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE);1365mt76_wr(dev, MT_WF_ARB_TX_START_0, 0);1366mt76_clear(dev, MT_WF_ARB_RQCR, MT_WF_ARB_RQCR_RX_START);1367}13681369void mt7603_pse_client_reset(struct mt7603_dev *dev)1370{1371u32 addr;13721373addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR +1374MT_CLIENT_RESET_TX);13751376/* Clear previous reset state */1377mt76_clear(dev, addr,1378MT_CLIENT_RESET_TX_R_E_1 |1379MT_CLIENT_RESET_TX_R_E_2 |1380MT_CLIENT_RESET_TX_R_E_1_S |1381MT_CLIENT_RESET_TX_R_E_2_S);13821383/* Start PSE client TX abort */1384mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_FORCE_TX_EOF);1385mt76_set(dev, addr, MT_CLIENT_RESET_TX_R_E_1);1386mt76_poll_msec(dev, addr, MT_CLIENT_RESET_TX_R_E_1_S,1387MT_CLIENT_RESET_TX_R_E_1_S, 500);13881389mt76_set(dev, addr, MT_CLIENT_RESET_TX_R_E_2);1390mt76_set(dev, MT_WPDMA_GLO_CFG, MT_WPDMA_GLO_CFG_SW_RESET);13911392/* Wait for PSE client to clear TX FIFO */1393mt76_poll_msec(dev, addr, MT_CLIENT_RESET_TX_R_E_2_S,1394MT_CLIENT_RESET_TX_R_E_2_S, 500);13951396/* Clear PSE client TX abort state */1397mt76_clear(dev, addr,1398MT_CLIENT_RESET_TX_R_E_1 |1399MT_CLIENT_RESET_TX_R_E_2);1400}14011402static void mt7603_dma_sched_reset(struct mt7603_dev *dev)1403{1404if (!is_mt7628(dev))1405return;14061407mt76_set(dev, MT_SCH_4, MT_SCH_4_RESET);1408mt76_clear(dev, MT_SCH_4, MT_SCH_4_RESET);1409}14101411static void mt7603_mac_watchdog_reset(struct mt7603_dev *dev)1412{1413int beacon_int = dev->mt76.beacon_int;1414u32 mask = dev->mt76.mmio.irqmask;1415int i;14161417ieee80211_stop_queues(dev->mt76.hw);1418set_bit(MT76_RESET, &dev->mphy.state);14191420/* lock/unlock all queues to ensure that no tx is pending */1421mt76_txq_schedule_all(&dev->mphy);14221423mt76_worker_disable(&dev->mt76.tx_worker);1424tasklet_disable(&dev->mt76.pre_tbtt_tasklet);1425napi_disable(&dev->mt76.napi[0]);1426napi_disable(&dev->mt76.napi[1]);1427napi_disable(&dev->mt76.tx_napi);14281429mutex_lock(&dev->mt76.mutex);14301431mt7603_beacon_set_timer(dev, -1, 0);14321433mt7603_mac_stop(dev);14341435mt76_clear(dev, MT_WPDMA_GLO_CFG,1436MT_WPDMA_GLO_CFG_RX_DMA_EN | MT_WPDMA_GLO_CFG_TX_DMA_EN |1437MT_WPDMA_GLO_CFG_TX_WRITEBACK_DONE);1438usleep_range(1000, 2000);14391440mt7603_irq_disable(dev, mask);14411442mt7603_pse_client_reset(dev);14431444mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], true);1445for (i = 0; i < __MT_TXQ_MAX; i++)1446mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true);14471448mt7603_dma_sched_reset(dev);14491450mt76_tx_status_check(&dev->mt76, true);14511452mt76_for_each_q_rx(&dev->mt76, i) {1453mt76_queue_rx_reset(dev, i);1454}14551456if (dev->reset_cause[RESET_CAUSE_RESET_FAILED] ||1457dev->cur_reset_cause == RESET_CAUSE_RX_PSE_BUSY)1458mt7603_pse_reset(dev);14591460if (!dev->reset_cause[RESET_CAUSE_RESET_FAILED]) {1461mt7603_mac_dma_start(dev);14621463mt7603_irq_enable(dev, mask);14641465clear_bit(MT76_RESET, &dev->mphy.state);1466}14671468mutex_unlock(&dev->mt76.mutex);14691470mt76_worker_enable(&dev->mt76.tx_worker);14711472tasklet_enable(&dev->mt76.pre_tbtt_tasklet);1473mt7603_beacon_set_timer(dev, -1, beacon_int);14741475napi_enable(&dev->mt76.tx_napi);1476napi_enable(&dev->mt76.napi[0]);1477napi_enable(&dev->mt76.napi[1]);14781479local_bh_disable();1480napi_schedule(&dev->mt76.tx_napi);1481napi_schedule(&dev->mt76.napi[0]);1482napi_schedule(&dev->mt76.napi[1]);1483local_bh_enable();14841485ieee80211_wake_queues(dev->mt76.hw);1486mt76_txq_schedule_all(&dev->mphy);1487}14881489static u32 mt7603_dma_debug(struct mt7603_dev *dev, u8 index)1490{1491u32 val;14921493mt76_wr(dev, MT_WPDMA_DEBUG,1494FIELD_PREP(MT_WPDMA_DEBUG_IDX, index) |1495MT_WPDMA_DEBUG_SEL);14961497val = mt76_rr(dev, MT_WPDMA_DEBUG);1498return FIELD_GET(MT_WPDMA_DEBUG_VALUE, val);1499}15001501static bool mt7603_rx_fifo_busy(struct mt7603_dev *dev)1502{1503if (is_mt7628(dev))1504return mt7603_dma_debug(dev, 9) & BIT(9);15051506return mt7603_dma_debug(dev, 2) & BIT(8);1507}15081509static bool mt7603_rx_dma_busy(struct mt7603_dev *dev)1510{1511if (!(mt76_rr(dev, MT_WPDMA_GLO_CFG) & MT_WPDMA_GLO_CFG_RX_DMA_BUSY))1512return false;15131514return mt7603_rx_fifo_busy(dev);1515}15161517static bool mt7603_tx_dma_busy(struct mt7603_dev *dev)1518{1519u32 val;15201521if (!(mt76_rr(dev, MT_WPDMA_GLO_CFG) & MT_WPDMA_GLO_CFG_TX_DMA_BUSY))1522return false;15231524val = mt7603_dma_debug(dev, 9);1525return (val & BIT(8)) && (val & 0xf) != 0xf;1526}15271528static bool mt7603_tx_hang(struct mt7603_dev *dev)1529{1530struct mt76_queue *q;1531u32 dma_idx, prev_dma_idx;1532int i;15331534for (i = 0; i < 4; i++) {1535q = dev->mphy.q_tx[i];15361537if (!q->queued)1538continue;15391540prev_dma_idx = dev->tx_dma_idx[i];1541dma_idx = readl(&q->regs->dma_idx);1542dev->tx_dma_idx[i] = dma_idx;15431544if (dma_idx == prev_dma_idx &&1545dma_idx != readl(&q->regs->cpu_idx))1546break;1547}15481549return i < 4;1550}15511552static bool mt7603_rx_pse_busy(struct mt7603_dev *dev)1553{1554u32 addr, val;15551556if (mt7603_rx_fifo_busy(dev))1557goto out;15581559addr = mt7603_reg_map(dev, MT_CLIENT_BASE_PHYS_ADDR + MT_CLIENT_STATUS);1560mt76_wr(dev, addr, 3);1561val = mt76_rr(dev, addr) >> 16;15621563if (!(val & BIT(0)))1564return false;15651566if (is_mt7628(dev))1567val &= 0xa000;1568else1569val &= 0x8000;1570if (!val)1571return false;15721573out:1574if (mt76_rr(dev, MT_INT_SOURCE_CSR) &1575(MT_INT_RX_DONE(0) | MT_INT_RX_DONE(1)))1576return false;15771578return true;1579}15801581static bool1582mt7603_watchdog_check(struct mt7603_dev *dev, u8 *counter,1583enum mt7603_reset_cause cause,1584bool (*check)(struct mt7603_dev *dev))1585{1586if (dev->reset_test == cause + 1) {1587dev->reset_test = 0;1588goto trigger;1589}15901591if (check) {1592if (!check(dev) && *counter < MT7603_WATCHDOG_TIMEOUT) {1593*counter = 0;1594return false;1595}15961597(*counter)++;1598}15991600if (*counter < MT7603_WATCHDOG_TIMEOUT)1601return false;1602trigger:1603dev->cur_reset_cause = cause;1604dev->reset_cause[cause]++;1605return true;1606}16071608void mt7603_update_channel(struct mt76_phy *mphy)1609{1610struct mt7603_dev *dev = container_of(mphy->dev, struct mt7603_dev, mt76);1611struct mt76_channel_state *state;16121613state = mphy->chan_state;1614state->cc_busy += mt76_rr(dev, MT_MIB_STAT_CCA);1615}16161617void1618mt7603_edcca_set_strict(struct mt7603_dev *dev, bool val)1619{1620u32 rxtd_6 = 0xd7c80000;16211622if (val == dev->ed_strict_mode)1623return;16241625dev->ed_strict_mode = val;16261627/* Ensure that ED/CCA does not trigger if disabled */1628if (!dev->ed_monitor)1629rxtd_6 |= FIELD_PREP(MT_RXTD_6_CCAED_TH, 0x34);1630else1631rxtd_6 |= FIELD_PREP(MT_RXTD_6_CCAED_TH, 0x7d);16321633if (dev->ed_monitor && !dev->ed_strict_mode)1634rxtd_6 |= FIELD_PREP(MT_RXTD_6_ACI_TH, 0x0f);1635else1636rxtd_6 |= FIELD_PREP(MT_RXTD_6_ACI_TH, 0x10);16371638mt76_wr(dev, MT_RXTD(6), rxtd_6);16391640mt76_rmw_field(dev, MT_RXTD(13), MT_RXTD_13_ACI_TH_EN,1641dev->ed_monitor && !dev->ed_strict_mode);1642}16431644static void1645mt7603_edcca_check(struct mt7603_dev *dev)1646{1647u32 val = mt76_rr(dev, MT_AGC(41));1648ktime_t cur_time;1649int rssi0, rssi1;1650u32 active;1651u32 ed_busy;16521653if (!dev->ed_monitor)1654return;16551656rssi0 = FIELD_GET(MT_AGC_41_RSSI_0, val);1657if (rssi0 > 128)1658rssi0 -= 256;16591660if (dev->mphy.antenna_mask & BIT(1)) {1661rssi1 = FIELD_GET(MT_AGC_41_RSSI_1, val);1662if (rssi1 > 128)1663rssi1 -= 256;1664} else {1665rssi1 = rssi0;1666}16671668if (max(rssi0, rssi1) >= -40 &&1669dev->ed_strong_signal < MT7603_EDCCA_BLOCK_TH)1670dev->ed_strong_signal++;1671else if (dev->ed_strong_signal > 0)1672dev->ed_strong_signal--;16731674cur_time = ktime_get_boottime();1675ed_busy = mt76_rr(dev, MT_MIB_STAT_ED) & MT_MIB_STAT_ED_MASK;16761677active = ktime_to_us(ktime_sub(cur_time, dev->ed_time));1678dev->ed_time = cur_time;16791680if (!active)1681return;16821683if (100 * ed_busy / active > 90) {1684if (dev->ed_trigger < 0)1685dev->ed_trigger = 0;1686dev->ed_trigger++;1687} else {1688if (dev->ed_trigger > 0)1689dev->ed_trigger = 0;1690dev->ed_trigger--;1691}16921693if (dev->ed_trigger > MT7603_EDCCA_BLOCK_TH ||1694dev->ed_strong_signal < MT7603_EDCCA_BLOCK_TH / 2) {1695mt7603_edcca_set_strict(dev, true);1696} else if (dev->ed_trigger < -MT7603_EDCCA_BLOCK_TH) {1697mt7603_edcca_set_strict(dev, false);1698}16991700if (dev->ed_trigger > MT7603_EDCCA_BLOCK_TH)1701dev->ed_trigger = MT7603_EDCCA_BLOCK_TH;1702else if (dev->ed_trigger < -MT7603_EDCCA_BLOCK_TH)1703dev->ed_trigger = -MT7603_EDCCA_BLOCK_TH;1704}17051706void mt7603_cca_stats_reset(struct mt7603_dev *dev)1707{1708mt76_set(dev, MT_PHYCTRL(2), MT_PHYCTRL_2_STATUS_RESET);1709mt76_clear(dev, MT_PHYCTRL(2), MT_PHYCTRL_2_STATUS_RESET);1710mt76_set(dev, MT_PHYCTRL(2), MT_PHYCTRL_2_STATUS_EN);1711}17121713static void1714mt7603_adjust_sensitivity(struct mt7603_dev *dev)1715{1716u32 agc0 = dev->agc0, agc3 = dev->agc3;1717u32 adj;17181719if (!dev->sensitivity || dev->sensitivity < -100) {1720dev->sensitivity = 0;1721} else if (dev->sensitivity <= -84) {1722adj = 7 + (dev->sensitivity + 92) / 2;17231724agc0 = 0x56f0076f;1725agc0 |= adj << 12;1726agc0 |= adj << 16;1727agc3 = 0x81d0d5e3;1728} else if (dev->sensitivity <= -72) {1729adj = 7 + (dev->sensitivity + 80) / 2;17301731agc0 = 0x6af0006f;1732agc0 |= adj << 8;1733agc0 |= adj << 12;1734agc0 |= adj << 16;17351736agc3 = 0x8181d5e3;1737} else {1738if (dev->sensitivity > -54)1739dev->sensitivity = -54;17401741adj = 7 + (dev->sensitivity + 80) / 2;17421743agc0 = 0x7ff0000f;1744agc0 |= adj << 4;1745agc0 |= adj << 8;1746agc0 |= adj << 12;1747agc0 |= adj << 16;17481749agc3 = 0x818181e3;1750}17511752mt76_wr(dev, MT_AGC(0), agc0);1753mt76_wr(dev, MT_AGC1(0), agc0);17541755mt76_wr(dev, MT_AGC(3), agc3);1756mt76_wr(dev, MT_AGC1(3), agc3);1757}17581759static void1760mt7603_false_cca_check(struct mt7603_dev *dev)1761{1762int pd_cck, pd_ofdm, mdrdy_cck, mdrdy_ofdm;1763int false_cca;1764int min_signal;1765u32 val;17661767if (!dev->dynamic_sensitivity)1768return;17691770val = mt76_rr(dev, MT_PHYCTRL_STAT_PD);1771pd_cck = FIELD_GET(MT_PHYCTRL_STAT_PD_CCK, val);1772pd_ofdm = FIELD_GET(MT_PHYCTRL_STAT_PD_OFDM, val);17731774val = mt76_rr(dev, MT_PHYCTRL_STAT_MDRDY);1775mdrdy_cck = FIELD_GET(MT_PHYCTRL_STAT_MDRDY_CCK, val);1776mdrdy_ofdm = FIELD_GET(MT_PHYCTRL_STAT_MDRDY_OFDM, val);17771778dev->false_cca_ofdm = pd_ofdm - mdrdy_ofdm;1779dev->false_cca_cck = pd_cck - mdrdy_cck;17801781mt7603_cca_stats_reset(dev);17821783min_signal = mt76_get_min_avg_rssi(&dev->mt76, 0);1784if (!min_signal) {1785dev->sensitivity = 0;1786dev->last_cca_adj = jiffies;1787goto out;1788}17891790min_signal -= 15;17911792false_cca = dev->false_cca_ofdm + dev->false_cca_cck;1793if (false_cca > 600 &&1794dev->sensitivity < -100 + dev->sensitivity_limit) {1795if (!dev->sensitivity)1796dev->sensitivity = -92;1797else1798dev->sensitivity += 2;1799dev->last_cca_adj = jiffies;1800} else if (false_cca < 100 ||1801time_after(jiffies, dev->last_cca_adj + 10 * HZ)) {1802dev->last_cca_adj = jiffies;1803if (!dev->sensitivity)1804goto out;18051806dev->sensitivity -= 2;1807}18081809if (dev->sensitivity && dev->sensitivity > min_signal) {1810dev->sensitivity = min_signal;1811dev->last_cca_adj = jiffies;1812}18131814out:1815mt7603_adjust_sensitivity(dev);1816}18171818void mt7603_mac_work(struct work_struct *work)1819{1820struct mt7603_dev *dev = container_of(work, struct mt7603_dev,1821mphy.mac_work.work);1822bool reset = false;1823int i, idx;18241825mt76_tx_status_check(&dev->mt76, false);18261827mutex_lock(&dev->mt76.mutex);18281829dev->mphy.mac_work_count++;1830mt76_update_survey(&dev->mphy);1831mt7603_edcca_check(dev);18321833for (i = 0, idx = 0; i < 2; i++) {1834u32 val = mt76_rr(dev, MT_TX_AGG_CNT(i));18351836dev->mphy.aggr_stats[idx++] += val & 0xffff;1837dev->mphy.aggr_stats[idx++] += val >> 16;1838}18391840if (dev->mphy.mac_work_count == 10)1841mt7603_false_cca_check(dev);18421843if (mt7603_watchdog_check(dev, &dev->rx_pse_check,1844RESET_CAUSE_RX_PSE_BUSY,1845mt7603_rx_pse_busy) ||1846mt7603_watchdog_check(dev, &dev->beacon_check,1847RESET_CAUSE_BEACON_STUCK,1848NULL) ||1849mt7603_watchdog_check(dev, &dev->tx_hang_check,1850RESET_CAUSE_TX_HANG,1851mt7603_tx_hang) ||1852mt7603_watchdog_check(dev, &dev->tx_dma_check,1853RESET_CAUSE_TX_BUSY,1854mt7603_tx_dma_busy) ||1855mt7603_watchdog_check(dev, &dev->rx_dma_check,1856RESET_CAUSE_RX_BUSY,1857mt7603_rx_dma_busy) ||1858mt7603_watchdog_check(dev, &dev->mcu_hang,1859RESET_CAUSE_MCU_HANG,1860NULL) ||1861dev->reset_cause[RESET_CAUSE_RESET_FAILED]) {1862dev->beacon_check = 0;1863dev->tx_dma_check = 0;1864dev->tx_hang_check = 0;1865dev->rx_dma_check = 0;1866dev->rx_pse_check = 0;1867dev->mcu_hang = 0;1868dev->rx_dma_idx = ~0;1869memset(dev->tx_dma_idx, 0xff, sizeof(dev->tx_dma_idx));1870reset = true;1871dev->mphy.mac_work_count = 0;1872}18731874if (dev->mphy.mac_work_count >= 10)1875dev->mphy.mac_work_count = 0;18761877mutex_unlock(&dev->mt76.mutex);18781879if (reset)1880mt7603_mac_watchdog_reset(dev);18811882ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work,1883msecs_to_jiffies(MT7603_WATCHDOG_TIME));1884}188518861887