wifi: rtw89: debug: add ser_counters dbgfs

Dump counters of SER (system error recoery) L0/L1 related cases.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20251223030651.480633-8-pkshih@realtek.com

diff --git a/drivers/net/wireless/realtek/rtw89/debug.c b/drivers/net/wireless/realtek/rtw89/debug.c
index 1264c2f82600bf3968f8d7af5b537e855b4e3363..0d9a158f6df1843075d10df67e43e68b4c918885 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/debug.c
+++ b/drivers/net/wireless/realtek/rtw89/debug.c
@@ -79,6 +79,7 @@ struct rtw89_debugfs {
        struct rtw89_debugfs_priv send_h2c;
        struct rtw89_debugfs_priv early_h2c;
        struct rtw89_debugfs_priv fw_crash;
+       struct rtw89_debugfs_priv ser_counters;
        struct rtw89_debugfs_priv btc_info;
        struct rtw89_debugfs_priv btc_manual;
        struct rtw89_debugfs_priv fw_log_manual;
@@ -3680,6 +3681,60 @@ rtw89_debug_priv_fw_crash_set(struct rtw89_dev *rtwdev,
        return count;
 }
 
+struct rtw89_dbg_ser_counters {
+       unsigned int l0;
+       unsigned int l1;
+       unsigned int l0_to_l1;
+};
+
+static void rtw89_dbg_get_ser_counters_ax(struct rtw89_dev *rtwdev,
+                                         struct rtw89_dbg_ser_counters *cnt)
+{
+       const u32 val = rtw89_read32(rtwdev, R_AX_SER_DBG_INFO);
+
+       cnt->l0 = u32_get_bits(val, B_AX_SER_L0_COUNTER_MASK);
+       cnt->l1 = u32_get_bits(val, B_AX_SER_L1_COUNTER_MASK);
+       cnt->l0_to_l1 = u32_get_bits(val, B_AX_L0_TO_L1_EVENT_MASK);
+}
+
+static void rtw89_dbg_get_ser_counters_be(struct rtw89_dev *rtwdev,
+                                         struct rtw89_dbg_ser_counters *cnt)
+{
+       const u32 val = rtw89_read32(rtwdev, R_BE_SER_DBG_INFO);
+
+       cnt->l0 = u32_get_bits(val, B_BE_SER_L0_COUNTER_MASK);
+       cnt->l1 = u32_get_bits(val, B_BE_SER_L1_COUNTER_MASK);
+       cnt->l0_to_l1 = u32_get_bits(val, B_BE_SER_L0_PROMOTE_L1_EVENT_MASK);
+}
+
+static ssize_t rtw89_debug_priv_ser_counters_get(struct rtw89_dev *rtwdev,
+                                                struct rtw89_debugfs_priv *debugfs_priv,
+                                                char *buf, size_t bufsz)
+{
+       const struct rtw89_chip_info *chip = rtwdev->chip;
+       struct rtw89_dbg_ser_counters cnt = {};
+       char *p = buf, *end = buf + bufsz;
+
+       rtw89_leave_ps_mode(rtwdev);
+
+       switch (chip->chip_gen) {
+       case RTW89_CHIP_AX:
+               rtw89_dbg_get_ser_counters_ax(rtwdev, &cnt);
+               break;
+       case RTW89_CHIP_BE:
+               rtw89_dbg_get_ser_counters_be(rtwdev, &cnt);
+               break;
+       default:
+               return -EOPNOTSUPP;
+       }
+
+       p += scnprintf(p, end - p, "SER L0 Count: %d\n", cnt.l0);
+       p += scnprintf(p, end - p, "SER L1 Count: %d\n", cnt.l1);
+       p += scnprintf(p, end - p, "SER L0 promote event: %d\n", cnt.l0_to_l1);
+
+       return p - buf;
+}
+
 static ssize_t rtw89_debug_priv_btc_info_get(struct rtw89_dev *rtwdev,
                                             struct rtw89_debugfs_priv *debugfs_priv,
                                             char *buf, size_t bufsz)
@@ -4767,6 +4822,7 @@ static const struct rtw89_debugfs rtw89_debugfs_templ = {
        .send_h2c = rtw89_debug_priv_set(send_h2c),
        .early_h2c = rtw89_debug_priv_set_and_get(early_h2c, RWLOCK),
        .fw_crash = rtw89_debug_priv_set_and_get(fw_crash, WLOCK),
+       .ser_counters = rtw89_debug_priv_get(ser_counters, RLOCK),
        .btc_info = rtw89_debug_priv_get(btc_info, RSIZE_12K),
        .btc_manual = rtw89_debug_priv_set(btc_manual),
        .fw_log_manual = rtw89_debug_priv_set(fw_log_manual, WLOCK),
@@ -4814,6 +4870,7 @@ void rtw89_debugfs_add_sec1(struct rtw89_dev *rtwdev, struct dentry *debugfs_top
        rtw89_debugfs_add_w(send_h2c);
        rtw89_debugfs_add_rw(early_h2c);
        rtw89_debugfs_add_rw(fw_crash);
+       rtw89_debugfs_add_r(ser_counters);
        rtw89_debugfs_add_r(btc_info);
        rtw89_debugfs_add_w(btc_manual);
        rtw89_debugfs_add_w(fw_log_manual);

diff --git a/drivers/net/wireless/realtek/rtw89/reg.h b/drivers/net/wireless/realtek/rtw89/reg.h
index fb641cefa4c98c19d64d346ea49b1f76f610e126..28ceab7726c623880599f250b2f886ab579688a8 100644 (file)
--- a/drivers/net/wireless/realtek/rtw89/reg.h
+++ b/drivers/net/wireless/realtek/rtw89/reg.h
@@ -607,6 +607,9 @@
 
 #define R_AX_SER_DBG_INFO 0x8424
 #define B_AX_L0_TO_L1_EVENT_MASK GENMASK(31, 28)
+#define B_AX_SER_L1_COUNTER_MASK GENMASK(27, 24)
+#define B_AX_RMAC_PPDU_HANG_CNT_MASK GENMASK(23, 16)
+#define B_AX_SER_L0_COUNTER_MASK GENMASK(7, 0)
 
 #define R_AX_DLE_EMPTY0 0x8430
 #define B_AX_PLE_EMPTY_QTA_DMAC_CPUIO BIT(26)
@@ -4731,7 +4734,7 @@
 #define B_BE_SER_L0_PROMOTE_L1_EVENT_MASK GENMASK(31, 28)
 #define B_BE_SER_L1_COUNTER_MASK GENMASK(27, 24)
 #define B_BE_RMAC_PPDU_HANG_CNT_MASK GENMASK(23, 16)
-#define B_BE_SER_L0_COUNTER_MASK GENMASK(8, 0)
+#define B_BE_SER_L0_COUNTER_MASK GENMASK(7, 0)
 
 #define R_BE_DMAC_SYS_CR32B 0x842C
 #define B_BE_DMAC_BB_PHY1_MASK GENMASK(31, 16)