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mt76: mt7915: add mu-mimo and ofdma debugfs knobs 
Add mu-mimo and ofdma packet counters statistics.
The statistics are clear on read.

Reviewed-by: Money.Wang <Money.Wang@mediatek.com>
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: MeiChia Chiu <meichia.chiu@mediatek.com>
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@intel-lab-lkp
MeiChia Chiu authored and intel-lab-lkp committed Dec 8, 2021
1 parent fe6db7e commit 2d224f4e59aa02c401f3f6f5e9d4586040773a8a
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Showing 4 changed files with 332 additions and 1 deletion.
244 drivers/net/wireless/mediatek/mt76/mt7915/debugfs.c
View file
@@ -81,6 +81,246 @@ mt7915_radar_trigger(void *data, u64 val)
DEFINE_DEBUGFS_ATTRIBUTE(fops_radar_trigger, NULL,
mt7915_radar_trigger, "%lld\n");

static int
mt7915_muru_debug_set(void *data, u64 val)
{
struct mt7915_dev *dev = data;

dev->muru_debug = val;
mt7915_mcu_muru_debug_set(dev, data);

return 0;
}

static int
mt7915_muru_debug_get(void *data, u64 *val)
{
struct mt7915_dev *dev = data;

*val = dev->muru_debug;

return 0;
}

DEFINE_DEBUGFS_ATTRIBUTE(fops_muru_debug, mt7915_muru_debug_get,
mt7915_muru_debug_set, "%lld\n");

static int mt7915_muru_stat_show(struct seq_file *file, void *data)
{
struct mt7915_phy *phy = file->private;
struct mt7915_dev *dev = phy->dev;
struct mt7915_mcu_muru_stats mu_stats = {};
static const char * const dl_non_he_type[] = {
"CCK", "OFDM", "HT MIX", "HT GF",
"VHT SU", "VHT 2MU", "VHT 3MU", "VHT 4MU"
};
static const char * const dl_he_type[] = {
"HE SU", "HE EXT", "HE 2MU", "HE 3MU", "HE 4MU",
"HE 2RU", "HE 3RU", "HE 4RU", "HE 5-8RU", "HE 9-16RU",
"HE >16RU"
};
static const char * const ul_he_type[] = {
"HE 2MU", "HE 3MU", "HE 4MU", "HE SU", "HE 2RU",
"HE 3RU", "HE 4RU", "HE 5-8RU", "HE 9-16RU", "HE >16RU"
};
int ret, i;
u64 total_ppdu_cnt;

if (!dev->muru_debug) {
seq_puts(file, "Please enable muru_debug first.\n");
return 0;
}

mutex_lock(&dev->mt76.mutex);

ret = mt7915_mcu_muru_debug_get(phy, &mu_stats);
if (ret)
goto exit;

#define __ms_ratio(s) (!total_ppdu_cnt ? 0 : \
le32_to_cpu(s) * 100 / total_ppdu_cnt)
#define __dl_u32(s) le32_to_cpu(mu_stats.dl.s)
/* Non-HE Downlink*/
total_ppdu_cnt = __dl_u32(cck_cnt) +
__dl_u32(ofdm_cnt) +
__dl_u32(htmix_cnt) +
__dl_u32(htgf_cnt) +
__dl_u32(vht_su_cnt) +
__dl_u32(vht_2mu_cnt) +
__dl_u32(vht_3mu_cnt) +
__dl_u32(vht_4mu_cnt);

seq_puts(file, "[Non-HE]\nDownlink\nData Type: ");

for (i = 0; i < 5; i++)
seq_printf(file, "%8s | ", dl_non_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | %8u | %8u | %8u | ",
__dl_u32(cck_cnt),
__dl_u32(ofdm_cnt),
__dl_u32(htmix_cnt),
__dl_u32(htgf_cnt),
__dl_u32(vht_su_cnt));

seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | %7d%% | %7d%% | %7d%% | ",
__ms_ratio(mu_stats.dl.cck_cnt),
__ms_ratio(mu_stats.dl.ofdm_cnt),
__ms_ratio(mu_stats.dl.htmix_cnt),
__ms_ratio(mu_stats.dl.htgf_cnt),
__ms_ratio(mu_stats.dl.vht_su_cnt));

seq_puts(file, "\nDownlink MU-MIMO\nData Type: ");

for (i = 5; i < 8; i++)
seq_printf(file, "%8s | ", dl_non_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | %8u | ",
__dl_u32(vht_2mu_cnt),
__dl_u32(vht_3mu_cnt),
__dl_u32(vht_4mu_cnt));

seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | %7d%% | ",
__ms_ratio(mu_stats.dl.vht_2mu_cnt),
__ms_ratio(mu_stats.dl.vht_3mu_cnt),
__ms_ratio(mu_stats.dl.vht_4mu_cnt));

/* HE Downlink */
total_ppdu_cnt = __dl_u32(he_su_cnt) +
__dl_u32(he_ext_su_cnt) +
__dl_u32(he_2mu_cnt) +
__dl_u32(he_3mu_cnt) +
__dl_u32(he_4mu_cnt) +
__dl_u32(he_2ru_cnt) +
__dl_u32(he_3ru_cnt) +
__dl_u32(he_4ru_cnt) +
__dl_u32(he_5to8ru_cnt) +
__dl_u32(he_9to16ru_cnt) +
__dl_u32(he_gtr16ru_cnt);

seq_puts(file, "\n\n[HE]\nDownlink\nData Type: ");

for (i = 0; i < 2; i++)
seq_printf(file, "%8s | ", dl_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | ",
__dl_u32(he_su_cnt),
__dl_u32(he_ext_su_cnt));

seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | ",
__ms_ratio(mu_stats.dl.he_su_cnt),
__ms_ratio(mu_stats.dl.he_ext_su_cnt));

seq_puts(file, "\nDownlink MU-MIMO\nData Type: ");

for (i = 2; i < 5; i++)
seq_printf(file, "%8s | ", dl_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | %8u | ",
__dl_u32(he_2mu_cnt),
__dl_u32(he_3mu_cnt),
__dl_u32(he_4mu_cnt));

seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | %7d%% | ",
__ms_ratio(mu_stats.dl.he_2mu_cnt),
__ms_ratio(mu_stats.dl.he_3mu_cnt),
__ms_ratio(mu_stats.dl.he_4mu_cnt));

seq_puts(file, "\nDownlink OFDMA\nData Type: ");

for (i = 5; i < 11; i++)
seq_printf(file, "%8s | ", dl_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | %8u | %8u | %9u | %8u | ",
__dl_u32(he_2ru_cnt),
__dl_u32(he_3ru_cnt),
__dl_u32(he_4ru_cnt),
__dl_u32(he_5to8ru_cnt),
__dl_u32(he_9to16ru_cnt),
__dl_u32(he_gtr16ru_cnt));
#undef __dl_u32
seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | %7d%% | %7d%% | %8d%% | %7d%% | ",
__ms_ratio(mu_stats.dl.he_2ru_cnt),
__ms_ratio(mu_stats.dl.he_3ru_cnt),
__ms_ratio(mu_stats.dl.he_4ru_cnt),
__ms_ratio(mu_stats.dl.he_5to8ru_cnt),
__ms_ratio(mu_stats.dl.he_9to16ru_cnt),
__ms_ratio(mu_stats.dl.he_gtr16ru_cnt));

#define __ul_u32(s) le32_to_cpu(mu_stats.ul.s)
/* HE Uplink */
total_ppdu_cnt = __ul_u32(hetrig_2ru_cnt) +
__ul_u32(hetrig_3ru_cnt) +
__ul_u32(hetrig_4ru_cnt) +
__ul_u32(hetrig_5to8ru_cnt) +
__ul_u32(hetrig_9to16ru_cnt) +
__ul_u32(hetrig_gtr16ru_cnt) +
__ul_u32(hetrig_su_cnt) +
__ul_u32(hetrig_2mu_cnt) +
__ul_u32(hetrig_3mu_cnt) +
__ul_u32(hetrig_4mu_cnt);

seq_puts(file, "\n\nUplink\nData Type: ");
seq_puts(file, "\nTrigger-based Uplink MU-MIMO\nData Type: ");

for (i = 0; i < 3; i++)
seq_printf(file, "%8s | ", ul_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | %8u | ",
__ul_u32(hetrig_2mu_cnt),
__ul_u32(hetrig_3mu_cnt),
__ul_u32(hetrig_4mu_cnt));

seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | %7d%% | ",
__ms_ratio(mu_stats.ul.hetrig_2mu_cnt),
__ms_ratio(mu_stats.ul.hetrig_3mu_cnt),
__ms_ratio(mu_stats.ul.hetrig_4mu_cnt));

seq_puts(file, "\nTrigger-based Uplink OFDMA\nData Type: ");

for (i = 3; i < 10; i++)
seq_printf(file, "%8s | ", ul_he_type[i]);

seq_puts(file, "\nTotal Cnt: ");
seq_printf(file, "%8u | %8u | %8u | %8u | %8u | %9u | %7u | ",
__ul_u32(hetrig_su_cnt),
__ul_u32(hetrig_2ru_cnt),
__ul_u32(hetrig_3ru_cnt),
__ul_u32(hetrig_4ru_cnt),
__ul_u32(hetrig_5to8ru_cnt),
__ul_u32(hetrig_9to16ru_cnt),
__ul_u32(hetrig_gtr16ru_cnt));
#undef __ul_u32

seq_puts(file, "\nRatio : ");
seq_printf(file, "%7d%% | %7d%% | %7d%% | %7d%% | %7d%% | %7d%% | %7d%% |\n",
__ms_ratio(mu_stats.ul.hetrig_su_cnt),
__ms_ratio(mu_stats.ul.hetrig_2ru_cnt),
__ms_ratio(mu_stats.ul.hetrig_3ru_cnt),
__ms_ratio(mu_stats.ul.hetrig_4ru_cnt),
__ms_ratio(mu_stats.ul.hetrig_5to8ru_cnt),
__ms_ratio(mu_stats.ul.hetrig_9to16ru_cnt),
__ms_ratio(mu_stats.ul.hetrig_gtr16ru_cnt));
#undef __ms_ratio

exit:
mutex_unlock(&dev->mt76.mutex);

return ret;
}
DEFINE_SHOW_ATTRIBUTE(mt7915_muru_stat);

static int
mt7915_fw_debug_wm_set(void *data, u64 val)
{
@@ -528,7 +768,9 @@ int mt7915_init_debugfs(struct mt7915_phy *phy)
dir = mt76_register_debugfs_fops(phy->mt76, NULL);
if (!dir)
return -ENOMEM;

debugfs_create_file("muru_debug", 0600, dir, dev, &fops_muru_debug);
debugfs_create_file("muru_stat", 0400, dir, phy,
&mt7915_muru_stat_fops);
debugfs_create_file("hw-queues", 0400, dir, phy,
&mt7915_hw_queues_fops);
debugfs_create_file("xmit-queues", 0400, dir, phy,
41 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
View file
@@ -3014,6 +3014,47 @@ int mt7915_mcu_fw_dbg_ctrl(struct mt7915_dev *dev, u32 module, u8 level)
sizeof(data), false);
}

int mt7915_mcu_muru_debug_set(struct mt7915_dev *dev, bool enabled)
{
struct {
__le32 cmd;
u8 enable;
} data = {
.cmd = cpu_to_le32(MURU_SET_TXC_TX_STATS_EN),
.enable = enabled,
};

return mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD(MURU_CTRL), &data,
sizeof(data), false);
}

int mt7915_mcu_muru_debug_get(struct mt7915_phy *phy, void *ms)
{
struct mt7915_dev *dev = phy->dev;
struct sk_buff *skb;
struct mt7915_mcu_muru_stats *mu_stats =
(struct mt7915_mcu_muru_stats *)ms;
int ret;

struct {
__le32 cmd;
u8 band_idx;
} req = {
.cmd = cpu_to_le32(MURU_GET_TXC_TX_STATS),
.band_idx = phy != &dev->phy,
};

ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_EXT_CMD(MURU_CTRL),
&req, sizeof(req), true, &skb);
if (ret)
return ret;

memcpy(mu_stats, skb->data, sizeof(struct mt7915_mcu_muru_stats));
dev_kfree_skb(skb);

return 0;
}

static int mt7915_mcu_set_mwds(struct mt7915_dev *dev, bool enabled)
{
struct {
45 drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
View file
@@ -44,6 +44,13 @@ enum {
MCU_EXT_EVENT_RDD_REPORT = 0x3a,
MCU_EXT_EVENT_CSA_NOTIFY = 0x4f,
MCU_EXT_EVENT_BCC_NOTIFY = 0x75,
MCU_EXT_EVENT_MURU_CTRL = 0x9f,
};

/* tx cmd tx statistics */
enum {
MURU_SET_TXC_TX_STATS_EN = 150,
MURU_GET_TXC_TX_STATS = 151,
};

enum {
@@ -206,6 +213,44 @@ struct mt7915_mcu_tx {
struct edca edca[IEEE80211_NUM_ACS];
} __packed;

struct mt7915_mcu_muru_stats {
__le32 event_id;
struct {
__le32 cck_cnt;
__le32 ofdm_cnt;
__le32 htmix_cnt;
__le32 htgf_cnt;
__le32 vht_su_cnt;
__le32 vht_2mu_cnt;
__le32 vht_3mu_cnt;
__le32 vht_4mu_cnt;
__le32 he_su_cnt;
__le32 he_ext_su_cnt;
__le32 he_2ru_cnt;
__le32 he_2mu_cnt;
__le32 he_3ru_cnt;
__le32 he_3mu_cnt;
__le32 he_4ru_cnt;
__le32 he_4mu_cnt;
__le32 he_5to8ru_cnt;
__le32 he_9to16ru_cnt;
__le32 he_gtr16ru_cnt;
} dl;

struct {
__le32 hetrig_su_cnt;
__le32 hetrig_2ru_cnt;
__le32 hetrig_3ru_cnt;
__le32 hetrig_4ru_cnt;
__le32 hetrig_5to8ru_cnt;
__le32 hetrig_9to16ru_cnt;
__le32 hetrig_gtr16ru_cnt;
__le32 hetrig_2mu_cnt;
__le32 hetrig_3mu_cnt;
__le32 hetrig_4mu_cnt;
} ul;
};

#define WMM_AIFS_SET BIT(0)
#define WMM_CW_MIN_SET BIT(1)
#define WMM_CW_MAX_SET BIT(2)
3 drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
View file
@@ -270,6 +270,7 @@ struct mt7915_dev {

bool dbdc_support;
bool flash_mode;
bool muru_debug;
bool ibf;
u8 fw_debug_wm;
u8 fw_debug_wa;
@@ -522,6 +523,8 @@ int mt7915_dfs_init_radar_detector(struct mt7915_phy *phy);
void mt7915_set_stream_he_caps(struct mt7915_phy *phy);
void mt7915_set_stream_vht_txbf_caps(struct mt7915_phy *phy);
void mt7915_update_channel(struct mt76_phy *mphy);
int mt7915_mcu_muru_debug_set(struct mt7915_dev *dev, bool enable);
int mt7915_mcu_muru_debug_get(struct mt7915_phy *phy, void *ms);
int mt7915_init_debugfs(struct mt7915_phy *phy);
#ifdef CONFIG_MAC80211_DEBUGFS
void mt7915_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,

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