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wifi: mt76: mt7996: add full system reset knobs into debugfs

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Add testing points into debugfs to trigger firmware assert and enable
full system recovery. Also rename knob "fw_ser" to a clear-cut name
"sys_recovery".

Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee
2023-04-05 07:24:38 +08:00
committed by Felix Fietkau
parent 27015b6fbc
commit 672662f074
6 changed files with 178 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
+1
View File
@@ -1221,6 +1221,7 @@ enum {
MCU_UNI_CMD_VOW = 0x37,
MCU_UNI_CMD_RRO = 0x57,
MCU_UNI_CMD_OFFCH_SCAN_CTRL = 0x58,
MCU_UNI_CMD_ASSERT_DUMP = 0x6f,
};
enum {
drivers/net/wireless/mediatek/mt76/mt7996/debugfs.c
+134 -15
View File
@@ -48,12 +48,12 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_implicit_txbf, mt7996_implicit_txbf_get,
/* test knob of system error recovery */
static ssize_t
mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
mt7996_sys_recovery_set(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct mt7996_phy *phy = file->private_data;
struct mt7996_dev *dev = phy->dev;
u8 band_idx = phy->mt76->band_idx;
bool band = phy->mt76->band_idx;
char buf[16];
int ret = 0;
u16 val;
@@ -73,17 +73,47 @@ mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
return -EINVAL;
switch (val) {
case SER_SET_RECOVER_L1:
case SER_SET_RECOVER_L2:
case SER_SET_RECOVER_L3_RX_ABORT:
case SER_SET_RECOVER_L3_TX_ABORT:
case SER_SET_RECOVER_L3_TX_DISABLE:
case SER_SET_RECOVER_L3_BF:
ret = mt7996_mcu_set_ser(dev, SER_ENABLE, BIT(val), band_idx);
/*
* 0: grab firmware current SER state.
* 1: trigger & enable system error L1 recovery.
* 2: trigger & enable system error L2 recovery.
* 3: trigger & enable system error L3 rx abort.
* 4: trigger & enable system error L3 tx abort
* 5: trigger & enable system error L3 tx disable.
* 6: trigger & enable system error L3 bf recovery.
* 7: trigger & enable system error L4 mdp recovery.
* 8: trigger & enable system error full recovery.
* 9: trigger firmware crash.
*/
case UNI_CMD_SER_QUERY:
ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_QUERY, 0, band);
break;
case UNI_CMD_SER_SET_RECOVER_L1:
case UNI_CMD_SER_SET_RECOVER_L2:
case UNI_CMD_SER_SET_RECOVER_L3_RX_ABORT:
case UNI_CMD_SER_SET_RECOVER_L3_TX_ABORT:
case UNI_CMD_SER_SET_RECOVER_L3_TX_DISABLE:
case UNI_CMD_SER_SET_RECOVER_L3_BF:
case UNI_CMD_SER_SET_RECOVER_L4_MDP:
ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_SET, BIT(val), band);
if (ret)
return ret;
ret = mt7996_mcu_set_ser(dev, SER_RECOVER, val, band_idx);
ret = mt7996_mcu_set_ser(dev, UNI_CMD_SER_TRIGGER, val, band);
break;
/* enable full chip reset */
case UNI_CMD_SER_SET_RECOVER_FULL:
mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK);
dev->recovery.state |= MT_MCU_CMD_WDT_MASK;
mt7996_reset(dev);
break;
/* WARNING: trigger firmware crash */
case UNI_CMD_SER_SET_SYSTEM_ASSERT:
ret = mt7996_mcu_trigger_assert(dev);
if (ret)
return ret;
break;
default:
break;
@@ -92,9 +122,97 @@ mt7996_fw_ser_set(struct file *file, const char __user *user_buf,
return ret ? ret : count;
}
static const struct file_operations mt7996_fw_ser_ops = {
.write = mt7996_fw_ser_set,
/* TODO: ser read */
static ssize_t
mt7996_sys_recovery_get(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct mt7996_phy *phy = file->private_data;
struct mt7996_dev *dev = phy->dev;
char *buff;
int desc = 0;
ssize_t ret;
static const size_t bufsz = 1024;
buff = kmalloc(bufsz, GFP_KERNEL);
if (!buff)
return -ENOMEM;
/* HELP */
desc += scnprintf(buff + desc, bufsz - desc,
"Please echo the correct value ...\n");
desc += scnprintf(buff + desc, bufsz - desc,
"0: grab firmware transient SER state\n");
desc += scnprintf(buff + desc, bufsz - desc,
"1: trigger system error L1 recovery\n");
desc += scnprintf(buff + desc, bufsz - desc,
"2: trigger system error L2 recovery\n");
desc += scnprintf(buff + desc, bufsz - desc,
"3: trigger system error L3 rx abort\n");
desc += scnprintf(buff + desc, bufsz - desc,
"4: trigger system error L3 tx abort\n");
desc += scnprintf(buff + desc, bufsz - desc,
"5: trigger system error L3 tx disable\n");
desc += scnprintf(buff + desc, bufsz - desc,
"6: trigger system error L3 bf recovery\n");
desc += scnprintf(buff + desc, bufsz - desc,
"7: trigger system error L4 mdp recovery\n");
desc += scnprintf(buff + desc, bufsz - desc,
"8: trigger system error full recovery\n");
desc += scnprintf(buff + desc, bufsz - desc,
"9: trigger firmware crash\n");
/* SER statistics */
desc += scnprintf(buff + desc, bufsz - desc,
"\nlet's dump firmware SER statistics...\n");
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_STATUS = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_SER_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_PLE_ERR = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_PLE_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_PLE_ERR_1 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_PLE1_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_PLE_ERR_AMSDU = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_PLE_AMSDU_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_PSE_ERR = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_PSE_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_PSE_ERR_1 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_PSE1_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_LMAC_WISR6_B0 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN0_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_LMAC_WISR6_B1 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN1_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_LMAC_WISR6_B2 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_LAMC_WISR6_BN2_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_LMAC_WISR7_B0 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN0_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_LMAC_WISR7_B1 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN1_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"::E R , SER_LMAC_WISR7_B2 = 0x%08x\n",
mt76_rr(dev, MT_SWDEF_LAMC_WISR7_BN2_STATS));
desc += scnprintf(buff + desc, bufsz - desc,
"\nSYS_RESET_COUNT: WM %d, WA %d\n",
dev->recovery.wm_reset_count,
dev->recovery.wa_reset_count);
ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
kfree(buff);
return ret;
}
static const struct file_operations mt7996_sys_recovery_ops = {
.write = mt7996_sys_recovery_set,
.read = mt7996_sys_recovery_get,
.open = simple_open,
.llseek = default_llseek,
};
@@ -674,6 +792,8 @@ int mt7996_init_debugfs(struct mt7996_phy *phy)
debugfs_create_file("xmit-queues", 0400, dir, phy,
&mt7996_xmit_queues_fops);
debugfs_create_file("tx_stats", 0400, dir, phy, &mt7996_tx_stats_fops);
debugfs_create_file("sys_recovery", 0600, dir, phy,
&mt7996_sys_recovery_ops);
debugfs_create_file("fw_debug_wm", 0600, dir, dev, &fops_fw_debug_wm);
debugfs_create_file("fw_debug_wa", 0600, dir, dev, &fops_fw_debug_wa);
debugfs_create_file("fw_debug_bin", 0600, dir, dev, &fops_fw_debug_bin);
@@ -684,7 +804,6 @@ int mt7996_init_debugfs(struct mt7996_phy *phy)
&fops_implicit_txbf);
debugfs_create_devm_seqfile(dev->mt76.dev, "twt_stats", dir,
mt7996_twt_stats);
debugfs_create_file("fw_ser", 0600, dir, phy, &mt7996_fw_ser_ops);
debugfs_create_file("rf_regval", 0600, dir, dev, &fops_rf_regval);
if (phy->mt76->cap.has_5ghz) {
drivers/net/wireless/mediatek/mt76/mt7996/mcu.c
+16
View File
@@ -3615,6 +3615,22 @@ int mt7996_mcu_rf_regval(struct mt7996_dev *dev, u32 regidx, u32 *val, bool set)
return 0;
}
int mt7996_mcu_trigger_assert(struct mt7996_dev *dev)
{
struct {
__le16 tag;
__le16 len;
u8 enable;
u8 rsv[3];
} __packed req = {
.len = cpu_to_le16(sizeof(req) - 4),
.enable = true,
};
return mt76_mcu_send_msg(&dev->mt76, MCU_WM_UNI_CMD(ASSERT_DUMP),
&req, sizeof(req), false);
}
int mt7996_mcu_set_rro(struct mt7996_dev *dev, u16 tag, u8 val)
{
struct {
drivers/net/wireless/mediatek/mt76/mt7996/mcu.h
+13 -15
View File
@@ -648,23 +648,21 @@ enum {
};
enum {
UNI_CMD_SER_QUERY = 0x0,
UNI_CMD_SER_SET = 0x2,
UNI_CMD_SER_TRIGGER = 0x3,
};
enum {
SER_QUERY,
UNI_CMD_SER_QUERY,
/* recovery */
SER_SET_RECOVER_L1,
SER_SET_RECOVER_L2,
SER_SET_RECOVER_L3_RX_ABORT,
SER_SET_RECOVER_L3_TX_ABORT,
SER_SET_RECOVER_L3_TX_DISABLE,
SER_SET_RECOVER_L3_BF,
UNI_CMD_SER_SET_RECOVER_L1,
UNI_CMD_SER_SET_RECOVER_L2,
UNI_CMD_SER_SET_RECOVER_L3_RX_ABORT,
UNI_CMD_SER_SET_RECOVER_L3_TX_ABORT,
UNI_CMD_SER_SET_RECOVER_L3_TX_DISABLE,
UNI_CMD_SER_SET_RECOVER_L3_BF,
UNI_CMD_SER_SET_RECOVER_L4_MDP,
UNI_CMD_SER_SET_RECOVER_FULL,
UNI_CMD_SER_SET_SYSTEM_ASSERT,
/* action */
SER_ENABLE = 2,
SER_RECOVER
UNI_CMD_SER_ENABLE = 1,
UNI_CMD_SER_SET,
UNI_CMD_SER_TRIGGER
};
enum {
drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h
+1
View File
@@ -441,6 +441,7 @@ int mt7996_mcu_set_rro(struct mt7996_dev *dev, u16 tag, u8 val);
int mt7996_mcu_wa_cmd(struct mt7996_dev *dev, int cmd, u32 a1, u32 a2, u32 a3);
int mt7996_mcu_fw_log_2_host(struct mt7996_dev *dev, u8 type, u8 ctrl);
int mt7996_mcu_fw_dbg_ctrl(struct mt7996_dev *dev, u32 module, u8 level);
int mt7996_mcu_trigger_assert(struct mt7996_dev *dev);
void mt7996_mcu_rx_event(struct mt7996_dev *dev, struct sk_buff *skb);
void mt7996_mcu_exit(struct mt7996_dev *dev);
drivers/net/wireless/mediatek/mt76/mt7996/regs.h
+13
View File
@@ -480,6 +480,19 @@ enum base_rev {
#define MT_SWDEF_MODE MT_SWDEF(0x3c)
#define MT_SWDEF_NORMAL_MODE 0
#define MT_SWDEF_SER_STATS MT_SWDEF(0x040)
#define MT_SWDEF_PLE_STATS MT_SWDEF(0x044)
#define MT_SWDEF_PLE1_STATS MT_SWDEF(0x048)
#define MT_SWDEF_PLE_AMSDU_STATS MT_SWDEF(0x04c)
#define MT_SWDEF_PSE_STATS MT_SWDEF(0x050)
#define MT_SWDEF_PSE1_STATS MT_SWDEF(0x054)
#define MT_SWDEF_LAMC_WISR6_BN0_STATS MT_SWDEF(0x058)
#define MT_SWDEF_LAMC_WISR6_BN1_STATS MT_SWDEF(0x05c)
#define MT_SWDEF_LAMC_WISR6_BN2_STATS MT_SWDEF(0x060)
#define MT_SWDEF_LAMC_WISR7_BN0_STATS MT_SWDEF(0x064)
#define MT_SWDEF_LAMC_WISR7_BN1_STATS MT_SWDEF(0x068)
#define MT_SWDEF_LAMC_WISR7_BN2_STATS MT_SWDEF(0x06c)
/* LED */
#define MT_LED_TOP_BASE 0x18013000
#define MT_LED_PHYS(_n) (MT_LED_TOP_BASE + (_n))