[PATCH net-next] net: hibmcge: support for statistics of reset failures

[Jijie Shao]

Add a statistical item to count the number of reset failures.
This statistical item can be queried using ethtool -S or
reported through diagnose information.

Signed-off-by: Jijie Shao <shaojijie@xxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h   | 1 +
 drivers/net/ethernet/hisilicon/hibmcge/hbg_diagnose.c | 1 +
 drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c      | 2 ++
 drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c  | 1 +
 4 files changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h b/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
index 7725cb0c5c8a..ea09a09c451b 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_common.h
@@ -258,6 +258,7 @@ struct hbg_stats {
 	u64 tx_dma_err_cnt;
 
 	u64 np_link_fail_cnt;
+	u64 reset_fail_cnt;
 };
 
 struct hbg_priv {
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_diagnose.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_diagnose.c
index f23fb5920c3c..c0ce74cf7382 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_diagnose.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_diagnose.c
@@ -156,6 +156,7 @@ static const struct hbg_push_stats_info hbg_push_stats_list[] = {
 	HBG_PUSH_STATS_I(tx_drop_cnt, 84),
 	HBG_PUSH_STATS_I(tx_excessive_length_drop_cnt, 85),
 	HBG_PUSH_STATS_I(tx_dma_err_cnt, 86),
+	HBG_PUSH_STATS_I(reset_fail_cnt, 87),
 };
 
 static int hbg_push_msg_send(struct hbg_priv *priv,
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c
index ff3295b60a69..503cfbfb4a8a 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_err.c
@@ -68,6 +68,7 @@ static int hbg_reset_prepare(struct hbg_priv *priv, enum hbg_reset_type type)
 	clear_bit(HBG_NIC_STATE_RESET_FAIL, &priv->state);
 	ret = hbg_hw_event_notify(priv, HBG_HW_EVENT_RESET);
 	if (ret) {
+		priv->stats.reset_fail_cnt++;
 		set_bit(HBG_NIC_STATE_RESET_FAIL, &priv->state);
 		clear_bit(HBG_NIC_STATE_RESETTING, &priv->state);
 	}
@@ -88,6 +89,7 @@ static int hbg_reset_done(struct hbg_priv *priv, enum hbg_reset_type type)
 	clear_bit(HBG_NIC_STATE_RESETTING, &priv->state);
 	ret = hbg_rebuild(priv);
 	if (ret) {
+		priv->stats.reset_fail_cnt++;
 		set_bit(HBG_NIC_STATE_RESET_FAIL, &priv->state);
 		dev_err(&priv->pdev->dev, "failed to rebuild after reset\n");
 		return ret;
diff --git a/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
index 55520053270a..1d62ff913737 100644
--- a/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hibmcge/hbg_ethtool.c
@@ -84,6 +84,7 @@ static const struct hbg_ethtool_stats hbg_ethtool_stats_info[] = {
 			HBG_REG_TX_EXCESSIVE_LENGTH_DROP_ADDR),
 	HBG_STATS_I(tx_dma_err_cnt),
 	HBG_STATS_I(tx_timeout_cnt),
+	HBG_STATS_I(reset_fail_cnt),
 };
 
 static const struct hbg_ethtool_stats hbg_ethtool_rmon_stats_info[] = {
-- 
2.33.0