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mt76: mt7915: disable RED support in the WA firmware

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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@nbd.name>
This commit is contained in:
Felix Fietkau 2021-01-06 10:43:03 +01:00
parent c203dd6217
commit f1fd2cae2e
2 changed files with 32 additions and 0 deletions
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17
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
View File

@ -313,6 +313,22 @@ exit:
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;
}

15
drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
View File

@ -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,