It causes high CPU load on the WA core, which can lead to extra latency when
using many stations. Dropping packets for long queues is managed by mac80211
fq_codel instead
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c | 17 +++++++++++++++++
drivers/net/wireless/mediatek/mt76/mt7915/mcu.h | 15 +++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 59a5ef2a0139..44cef96db476 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -313,6 +313,22 @@ mt7915_mcu_send_message(struct mt76_dev *mdev, struct sk_buff *skb,
return mt76_tx_queue_skb_raw(dev, mdev->q_mcu[txq], skb, 0);
}
+static void
+mt7915_mcu_wa_cmd(struct mt7915_dev *dev, int cmd, u32 a1, u32 a2, u32 a3)
+{
+ struct {
+ __le32 args[3];
+ } req = {
+ .args = {
+ cpu_to_le32(a1),
+ cpu_to_le32(a2),
+ cpu_to_le32(a3),
+ },
+ };
+
+ mt76_mcu_send_msg(&dev->mt76, cmd, &req, sizeof(req), true);
+}
+
static void
mt7915_mcu_csa_finish(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
@@ -2831,6 +2847,7 @@ int mt7915_mcu_init(struct mt7915_dev *dev)
set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
mt7915_mcu_fw_log_2_host(dev, 0);
mt7915_mcu_set_mwds(dev, 1);
+ mt7915_mcu_wa_cmd(dev, MCU_WA_PARAM_CMD(SET), MCU_WA_PARAM_RED, 0, 0);
return 0;
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index bd136ca29d0d..2d584142c27b 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -239,6 +239,7 @@ enum {
MCU_CMD_PATCH_START_REQ = 0x05,
MCU_CMD_PATCH_FINISH_REQ = 0x07,
MCU_CMD_PATCH_SEM_CONTROL = 0x10,
+ MCU_CMD_WA_PARAM = 0xC4,
MCU_CMD_EXT_CID = 0xED,
MCU_CMD_FW_SCATTER = 0xEE,
MCU_CMD_RESTART_DL_REQ = 0xEF,
@@ -277,6 +278,17 @@ enum {
MCU_EXT_CMD_PHY_STAT_INFO = 0xad,
};
+enum {
+ MCU_WA_PARAM_CMD_QUERY,
+ MCU_WA_PARAM_CMD_SET,
+ MCU_WA_PARAM_CMD_CAPABILITY,
+ MCU_WA_PARAM_CMD_DEBUG,
+};
+
+enum {
+ MCU_WA_PARAM_RED = 0x0e,
+};
+
#define MCU_CMD(_t) FIELD_PREP(__MCU_CMD_FIELD_ID, MCU_CMD_##_t)
#define MCU_EXT_CMD(_t) (MCU_CMD(EXT_CID) | \
FIELD_PREP(__MCU_CMD_FIELD_EXT_ID, \
@@ -285,6 +297,9 @@ enum {
#define MCU_WA_CMD(_t) (MCU_CMD(_t) | __MCU_CMD_FIELD_WA)
#define MCU_WA_EXT_CMD(_t) (MCU_EXT_CMD(_t) | __MCU_CMD_FIELD_WA)
+#define MCU_WA_PARAM_CMD(_t) (MCU_WA_CMD(WA_PARAM) | \
+ FIELD_PREP(__MCU_CMD_FIELD_EXT_ID, \
+ MCU_WA_PARAM_CMD_##_t))
enum {
PATCH_SEM_RELEASE,
--
2.28.0
