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mt76: mt7615: report firmware log event messages

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Useful for debugging firmware issues. Can be turned on via the "fw_debug"
debugfs file

Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2019-12-29 13:49:18 +01:00
parent 15d9a5d7b5
commit f347f81a8a
4 changed files with 70 additions and 0 deletions
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28
drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
View File

@ -71,6 +71,33 @@ mt7615_dbdc_get(void *data, u64 *val)
DEFINE_DEBUGFS_ATTRIBUTE(fops_dbdc, mt7615_dbdc_get,
mt7615_dbdc_set, "%lld\n");
static int
mt7615_fw_debug_set(void *data, u64 val)
{
struct mt7615_dev *dev = data;
if (!mt7615_wait_for_mcu_init(dev))
return 0;
dev->fw_debug = val;
mt7615_mcu_fw_log_2_host(dev, dev->fw_debug ? 2 : 0);
return 0;
}
static int
mt7615_fw_debug_get(void *data, u64 *val)
{
struct mt7615_dev *dev = data;
*val = dev->fw_debug;
return 0;
}
DEFINE_DEBUGFS_ATTRIBUTE(fops_fw_debug, mt7615_fw_debug_get,
mt7615_fw_debug_set, "%lld\n");
static int
mt7615_ampdu_stat_read(struct seq_file *file, void *data)
{
@ -222,6 +249,7 @@ int mt7615_init_debugfs(struct mt7615_dev *dev)
debugfs_create_file("ampdu_stat", 0400, dir, dev, &fops_ampdu_stat);
debugfs_create_file("scs", 0600, dir, dev, &fops_scs);
debugfs_create_file("dbdc", 0600, dir, dev, &fops_dbdc);
debugfs_create_file("fw_debug", 0600, dir, dev, &fops_fw_debug);
debugfs_create_devm_seqfile(dev->mt76.dev, "radio", dir,
mt7615_radio_read);
debugfs_create_u32("dfs_hw_pattern", 0400, dir, &dev->hw_pattern);

39
drivers/net/wireless/mediatek/mt76/mt7615/mcu.c
View File

@ -201,6 +201,28 @@ mt7615_mcu_rx_radar_detected(struct mt7615_dev *dev, struct sk_buff *skb)
dev->hw_pattern++;
}
static void
mt7615_mcu_rx_log_message(struct mt7615_dev *dev, struct sk_buff *skb)
{
struct mt7615_mcu_rxd *rxd = (struct mt7615_mcu_rxd *)skb->data;
const char *data = (char *)&rxd[1];
const char *type;
switch (rxd->s2d_index) {
case 0:
type = "N9";
break;
case 2:
type = "CR4";
break;
default:
type = "unknown";
break;
}
wiphy_info(mt76_hw(dev)->wiphy, "%s: %s", type, data);
}
static void
mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb)
{
@ -215,6 +237,9 @@ mt7615_mcu_rx_ext_event(struct mt7615_dev *dev, struct sk_buff *skb)
IEEE80211_IFACE_ITER_RESUME_ALL,
mt7615_mcu_csa_finish, dev);
break;
case MCU_EXT_EVENT_FW_LOG_2_HOST:
mt7615_mcu_rx_log_message(dev, skb);
break;
default:
break;
}
@ -643,6 +668,19 @@ static int mt7622_load_firmware(struct mt7615_dev *dev)
return 0;
}
int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl)
{
struct {
u8 ctrl_val;
u8 pad[3];
} data = {
.ctrl_val = ctrl
};
return __mt76_mcu_send_msg(&dev->mt76, MCU_EXT_CMD_FW_LOG_2_HOST,
&data, sizeof(data), true);
}
int mt7615_mcu_init(struct mt7615_dev *dev)
{
static const struct mt76_mcu_ops mt7615_mcu_ops = {
@ -667,6 +705,7 @@ int mt7615_mcu_init(struct mt7615_dev *dev)
mt76_queue_tx_cleanup(dev, MT_TXQ_FWDL, false);
dev_dbg(dev->mt76.dev, "Firmware init done\n");
set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
mt7615_mcu_fw_log_2_host(dev, 0);
return 0;
}

1
drivers/net/wireless/mediatek/mt76/mt7615/mcu.h
View File

@ -195,6 +195,7 @@ enum {
MCU_EXT_CMD_PM_STATE_CTRL = 0x07,
MCU_EXT_CMD_CHANNEL_SWITCH = 0x08,
MCU_EXT_CMD_SET_TX_POWER_CTRL = 0x11,
MCU_EXT_CMD_FW_LOG_2_HOST = 0x13,
MCU_EXT_CMD_EFUSE_BUFFER_MODE = 0x21,
MCU_EXT_CMD_STA_REC_UPDATE = 0x25,
MCU_EXT_CMD_BSS_INFO_UPDATE = 0x26,

2
drivers/net/wireless/mediatek/mt76/mt7615/mt7615.h
View File

@ -169,6 +169,7 @@ struct mt7615_dev {
u8 mac_work_count;
bool scs_en;
bool fw_debug;
spinlock_t token_lock;
struct idr token;
@ -308,6 +309,7 @@ int mt7615_mcu_rdd_cmd(struct mt7615_dev *dev,
enum mt7615_rdd_cmd cmd, u8 index,
u8 rx_sel, u8 val);
int mt7615_mcu_rdd_send_pattern(struct mt7615_dev *dev);
int mt7615_mcu_fw_log_2_host(struct mt7615_dev *dev, u8 ctrl);
static inline bool is_mt7622(struct mt76_dev *dev)
{