From 75601194a1c80f4d2a830ce36b9c3e3abfd8d006 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Fri, 13 Sep 2019 09:05:53 +0200 Subject: mt76: mt7615: collect aggregation stats Introduce ampdu_stat entry in mt7615 debugfs in order to dump 802.11 aggr cumulative statistics Signed-off-by: Lorenzo Bianconi Signed-off-by: Felix Fietkau --- .../net/wireless/mediatek/mt76/mt7615/debugfs.c | 39 ++++++++++++++++++++++ drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 18 ++++++++++ drivers/net/wireless/mediatek/mt76/mt7615/main.c | 2 ++ drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h | 1 + drivers/net/wireless/mediatek/mt76/mt7615/regs.h | 6 ++++ 5 files changed, 66 insertions(+) (limited to 'drivers/net') diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c index 1dc68d4aee57..f6b75f832e6a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c @@ -36,6 +36,44 @@ mt7615_scs_get(void *data, u64 *val) DEFINE_DEBUGFS_ATTRIBUTE(fops_scs, mt7615_scs_get, mt7615_scs_set, "%lld\n"); +static int +mt7615_ampdu_stat_read(struct seq_file *file, void *data) +{ + struct mt7615_dev *dev = file->private; + int bound[7], i, range; + + range = mt76_rr(dev, MT_AGG_ASRCR0); + for (i = 0; i < 4; i++) + bound[i] = MT_AGG_ASRCR_RANGE(range, i) + 1; + range = mt76_rr(dev, MT_AGG_ASRCR1); + for (i = 0; i < 3; i++) + bound[i + 4] = MT_AGG_ASRCR_RANGE(range, i) + 1; + + seq_printf(file, "Length: %8d | ", bound[0]); + for (i = 0; i < ARRAY_SIZE(bound) - 1; i++) + seq_printf(file, "%3d -%3d | ", + bound[i], bound[i + 1]); + seq_puts(file, "\nCount: "); + for (i = 0; i < ARRAY_SIZE(bound); i++) + seq_printf(file, "%8d | ", dev->mt76.aggr_stats[i]); + seq_puts(file, "\n"); + + return 0; +} + +static int +mt7615_ampdu_stat_open(struct inode *inode, struct file *f) +{ + return single_open(f, mt7615_ampdu_stat_read, inode->i_private); +} + +static const struct file_operations fops_ampdu_stat = { + .open = mt7615_ampdu_stat_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + static int mt7615_radio_read(struct seq_file *s, void *data) { @@ -130,6 +168,7 @@ int mt7615_init_debugfs(struct mt7615_dev *dev) mt7615_queues_read); debugfs_create_devm_seqfile(dev->mt76.dev, "acq", dir, mt7615_queues_acq); + debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat); debugfs_create_file("scs", 0600, dir, dev, &fops_scs); debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir, mt7615_radio_read); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c index e07ce2c10013..237d15521e18 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -41,6 +41,16 @@ static struct mt76_wcid *mt7615_rx_get_wcid(struct mt7615_dev *dev, return &sta->vif->sta.wcid; } +void mt7615_mac_reset_counters(struct mt7615_dev *dev) +{ + int i; + + for (i = 0; i < 4; i++) + mt76_rr(dev, MT_TX_AGG_CNT(i)); + + memset(dev->mt76.aggr_stats, 0, sizeof(dev->mt76.aggr_stats)); +} + int mt7615_mac_fill_rx(struct mt7615_dev *dev, struct sk_buff *skb) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; @@ -1261,6 +1271,7 @@ void mt7615_update_channel(struct mt76_dev *mdev) void mt7615_mac_work(struct work_struct *work) { struct mt7615_dev *dev; + int i, idx; dev = (struct mt7615_dev *)container_of(work, struct mt76_dev, mac_work.work); @@ -1271,6 +1282,13 @@ void mt7615_mac_work(struct work_struct *work) mt7615_mac_scs_check(dev); dev->mac_work_count = 0; } + + for (i = 0, idx = 0; i < 4; i++) { + u32 val = mt76_rr(dev, MT_TX_AGG_CNT(i)); + + dev->mt76.aggr_stats[idx++] += val & 0xffff; + dev->mt76.aggr_stats[idx++] += val >> 16; + } mutex_unlock(&dev->mt76.mutex); mt76_tx_status_check(&dev->mt76, NULL, false); diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/main.c b/drivers/net/wireless/mediatek/mt76/mt7615/main.c index 7252423a89fa..6949cda9df0b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/main.c @@ -16,6 +16,8 @@ static int mt7615_start(struct ieee80211_hw *hw) { struct mt7615_dev *dev = hw->priv; + mt7615_mac_reset_counters(dev); + dev->mt76.survey_time = ktime_get_boottime(); set_bit(MT76_STATE_RUNNING, &dev->mt76.state); ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mt76.mac_work, diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h index 7963e302d705..efb8be29c392 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h @@ -229,6 +229,7 @@ static inline void mt7615_irq_disable(struct mt7615_dev *dev, u32 mask) } void mt7615_update_channel(struct mt76_dev *mdev); +void mt7615_mac_reset_counters(struct mt7615_dev *dev); void mt7615_mac_cca_stats_reset(struct mt7615_dev *dev); void mt7615_mac_set_scs(struct mt7615_dev *dev, bool enable); int mt7615_mac_write_txwi(struct mt7615_dev *dev, __le32 *txwi, diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h index 43676736a807..643b8bd17850 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h @@ -136,6 +136,10 @@ MT_AGG_ARxCR_LIMIT_SHIFT(_n), \ MT_AGG_ARxCR_LIMIT_SHIFT(_n)) +#define MT_AGG_ASRCR0 MT_WF_AGG(0x060) +#define MT_AGG_ASRCR1 MT_WF_AGG(0x064) +#define MT_AGG_ASRCR_RANGE(val, n) (((val) >> ((n) << 3)) & GENMASK(5, 0)) + #define MT_AGG_ACR0 MT_WF_AGG(0x070) #define MT_AGG_ACR1 MT_WF_AGG(0x170) #define MT_AGG_ACR_NO_BA_RULE BIT(0) @@ -285,6 +289,8 @@ #define MT_MIB_SDR16(n) MT_WF_MIB(0x48 + ((n) << 9)) #define MT_MIB_BUSY_MASK GENMASK(23, 0) +#define MT_TX_AGG_CNT(n) MT_WF_MIB(0xa8 + ((n) << 2)) + #define MT_EFUSE_BASE 0x81070000 #define MT_EFUSE_BASE_CTRL 0x000 #define MT_EFUSE_BASE_CTRL_EMPTY BIT(30) -- cgit v1.2.3-59-g8ed1b