[PATCH mt76 v2 04/12] wifi: mt76: mt7996: support fixed rate for link station
Shayne Chen
shayne.chen at mediatek.com
Wed Nov 5 22:41:55 PST 2025
Introduce mt7996_link_sta_add_debugfs() to extend fixed rate support for
MLO link station.
Co-developed-by: Howard Hsu <howard-yh.hsu at mediatek.com>
Signed-off-by: Howard Hsu <howard-yh.hsu at mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen at mediatek.com>
---
.../wireless/mediatek/mt76/mt7996/debugfs.c | 72 +++++++++++--------
.../net/wireless/mediatek/mt76/mt7996/main.c | 1 +
.../wireless/mediatek/mt76/mt7996/mt7996.h | 3 +
3 files changed, 48 insertions(+), 28 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c b/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
index a000275b369b..76d623b2cafb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
@@ -953,16 +953,34 @@ bool mt7996_debugfs_rx_log(struct mt7996_dev *dev, const void *data, int len)
#ifdef CONFIG_MAC80211_DEBUGFS
/** per-station debugfs **/
-static ssize_t mt7996_sta_fixed_rate_set(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
+static int
+mt7996_queues_show(struct seq_file *s, void *data)
+{
+ struct ieee80211_sta *sta = s->private;
+
+ mt7996_sta_hw_queue_read(s, sta);
+
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(mt7996_queues);
+
+void mt7996_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, struct dentry *dir)
+{
+ debugfs_create_file("hw-queues", 0400, dir, sta, &mt7996_queues_fops);
+}
+
+static ssize_t mt7996_link_sta_fixed_rate_set(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
{
#define SHORT_PREAMBLE 0
#define LONG_PREAMBLE 1
- struct ieee80211_sta *sta = file->private_data;
- struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv;
+ struct ieee80211_link_sta *link_sta = file->private_data;
+ struct mt7996_sta *msta = (struct mt7996_sta *)link_sta->sta->drv_priv;
struct mt7996_dev *dev = msta->vif->deflink.phy->dev;
- struct mt7996_sta_link *msta_link = &msta->deflink;
+ struct mt7996_sta_link *msta_link;
struct ra_rate phy = {};
char buf[100];
int ret;
@@ -981,12 +999,13 @@ static ssize_t mt7996_sta_fixed_rate_set(struct file *file,
/* mode - cck: 0, ofdm: 1, ht: 2, gf: 3, vht: 4, he_su: 8, he_er: 9 EHT: 15
* bw - bw20: 0, bw40: 1, bw80: 2, bw160: 3, BW320: 4
- * nss - vht: 1~4, he: 1~4, eht: 1~4, others: ignore
* mcs - cck: 0~4, ofdm: 0~7, ht: 0~32, vht: 0~9, he_su: 0~11, he_er: 0~2, eht: 0~13
+ * nss - vht: 1~4, he: 1~4, eht: 1~4, others: ignore
* gi - (ht/vht) lgi: 0, sgi: 1; (he) 0.8us: 0, 1.6us: 1, 3.2us: 2
* preamble - short: 1, long: 0
- * ldpc - off: 0, on: 1
* stbc - off: 0, on: 1
+ * ldpc - off: 0, on: 1
+ * spe - off: 0, on: 1
* ltf - 1xltf: 0, 2xltf: 1, 4xltf: 2
*/
if (sscanf(buf, "%hhu %hhu %hhu %hhu %hu %hhu %hhu %hhu %hhu %hu",
@@ -994,9 +1013,16 @@ static ssize_t mt7996_sta_fixed_rate_set(struct file *file,
&phy.preamble, &phy.stbc, &phy.ldpc, &phy.spe, <f) != 10) {
dev_warn(dev->mt76.dev,
"format: Mode BW MCS NSS GI Preamble STBC LDPC SPE ltf\n");
- goto out;
+ return -EINVAL;
}
+ mutex_lock(&dev->mt76.mutex);
+
+ msta_link = mt76_dereference(msta->link[link_sta->link_id], &dev->mt76);
+ if (!msta_link) {
+ ret = -EINVAL;
+ goto out;
+ }
phy.wlan_idx = cpu_to_le16(msta_link->wcid.idx);
phy.gi = cpu_to_le16(gi);
phy.ltf = cpu_to_le16(ltf);
@@ -1005,36 +1031,26 @@ static ssize_t mt7996_sta_fixed_rate_set(struct file *file,
ret = mt7996_mcu_set_fixed_rate_ctrl(dev, &phy, 0);
if (ret)
- return -EFAULT;
+ goto out;
+ ret = count;
out:
- return count;
+ mutex_unlock(&dev->mt76.mutex);
+ return ret;
}
static const struct file_operations fops_fixed_rate = {
- .write = mt7996_sta_fixed_rate_set,
+ .write = mt7996_link_sta_fixed_rate_set,
.open = simple_open,
.owner = THIS_MODULE,
.llseek = default_llseek,
};
-static int
-mt7996_queues_show(struct seq_file *s, void *data)
-{
- struct ieee80211_sta *sta = s->private;
-
- mt7996_sta_hw_queue_read(s, sta);
-
- return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(mt7996_queues);
-
-void mt7996_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, struct dentry *dir)
+void mt7996_link_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_link_sta *link_sta,
+ struct dentry *dir)
{
- debugfs_create_file("fixed_rate", 0600, dir, sta, &fops_fixed_rate);
- debugfs_create_file("hw-queues", 0400, dir, sta, &mt7996_queues_fops);
+ debugfs_create_file("fixed_rate", 0600, dir, link_sta, &fops_fixed_rate);
}
#endif
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
index 08c4d9c8791b..5e0b57657e7e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c
@@ -2283,6 +2283,7 @@ const struct ieee80211_ops mt7996_ops = {
.twt_teardown_request = mt7996_twt_teardown_request,
#ifdef CONFIG_MAC80211_DEBUGFS
.sta_add_debugfs = mt7996_sta_add_debugfs,
+ .link_sta_add_debugfs = mt7996_link_sta_add_debugfs,
#endif
.set_radar_background = mt7996_set_radar_background,
.net_fill_forward_path = mt7996_net_fill_forward_path,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
index 891b187566b3..65eeb37ab8c7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
@@ -863,6 +863,9 @@ int mt7996_mcu_cp_support(struct mt7996_dev *dev, u8 mode);
#ifdef CONFIG_MAC80211_DEBUGFS
void mt7996_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, struct dentry *dir);
+void mt7996_link_sta_add_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_link_sta *link_sta,
+ struct dentry *dir);
#endif
int mt7996_mmio_wed_init(struct mt7996_dev *dev, void *pdev_ptr,
bool hif2, int *irq);
--
2.51.0
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