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Message-ID: <1572521004-36126-2-git-send-email-tanhuazhong@huawei.com>
Date: Thu, 31 Oct 2019 19:23:16 +0800
From: Huazhong Tan <tanhuazhong@...wei.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
<linuxarm@...wei.com>, <jakub.kicinski@...ronome.com>,
Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 1/9] net: hns3: dump some debug information when reset fail
When reset fails, there is some information that will help for
finding out why does reset fail. and removes an unused
core_rst_cnt field in struct hclge_rst_stats.
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 5 ++--
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 +++
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 2 +-
.../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 29 ++++++++++++++++++++++
4 files changed, 35 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 0ccc8e7..122ad92 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -929,7 +929,7 @@ static void hclge_dbg_fd_tcam(struct hclge_dev *hdev)
}
}
-static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
+void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
{
dev_info(&hdev->pdev->dev, "PF reset count: %u\n",
hdev->rst_stats.pf_rst_cnt);
@@ -945,8 +945,6 @@ static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
hdev->rst_stats.hw_reset_done_cnt);
dev_info(&hdev->pdev->dev, "reset count: %u\n",
hdev->rst_stats.reset_cnt);
- dev_info(&hdev->pdev->dev, "reset count: %u\n",
- hdev->rst_stats.reset_cnt);
dev_info(&hdev->pdev->dev, "reset fail count: %u\n",
hdev->rst_stats.reset_fail_cnt);
dev_info(&hdev->pdev->dev, "vector0 interrupt enable status: 0x%x\n",
@@ -961,6 +959,7 @@ static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
hclge_read_dev(&hdev->hw, HCLGE_NIC_CSQ_DEPTH_REG));
dev_info(&hdev->pdev->dev, "function reset status: 0x%x\n",
hclge_read_dev(&hdev->hw, HCLGE_FUN_RST_ING));
+ dev_info(&hdev->pdev->dev, "hdev state: 0x%lx\n", hdev->state);
}
static void hclge_dbg_get_m7_stats_info(struct hclge_dev *hdev)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index bf6bca2..19667c9 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3669,6 +3669,9 @@ static bool hclge_reset_err_handle(struct hclge_dev *hdev)
hclge_reset_handshake(hdev, true);
dev_err(&hdev->pdev->dev, "Reset fail!\n");
+
+ hclge_dbg_dump_rst_info(hdev);
+
return false;
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index 9e59f0e..4386788 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -656,7 +656,6 @@ struct hclge_rst_stats {
u32 hw_reset_done_cnt; /* the number of HW reset has completed */
u32 pf_rst_cnt; /* the number of PF reset */
u32 flr_rst_cnt; /* the number of FLR */
- u32 core_rst_cnt; /* the number of CORE reset */
u32 global_rst_cnt; /* the number of GLOBAL */
u32 imp_rst_cnt; /* the number of IMP reset */
u32 reset_cnt; /* the number of reset */
@@ -1005,4 +1004,5 @@ int hclge_query_bd_num_cmd_send(struct hclge_dev *hdev,
void hclge_report_hw_error(struct hclge_dev *hdev,
enum hnae3_hw_error_type type);
void hclge_inform_vf_promisc_info(struct hclge_vport *vport);
+void hclge_dbg_dump_rst_info(struct hclge_dev *hdev);
#endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 408e386..c38eba8 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -1549,6 +1549,33 @@ static int hclgevf_reset_prepare_wait(struct hclgevf_dev *hdev)
return ret;
}
+static void hclgevf_dump_rst_info(struct hclgevf_dev *hdev)
+{
+ dev_info(&hdev->pdev->dev, "VF function reset count: %u\n",
+ hdev->rst_stats.vf_func_rst_cnt);
+ dev_info(&hdev->pdev->dev, "FLR reset count: %u\n",
+ hdev->rst_stats.flr_rst_cnt);
+ dev_info(&hdev->pdev->dev, "VF reset count: %u\n",
+ hdev->rst_stats.vf_rst_cnt);
+ dev_info(&hdev->pdev->dev, "reset done count: %u\n",
+ hdev->rst_stats.rst_done_cnt);
+ dev_info(&hdev->pdev->dev, "HW reset done count: %u\n",
+ hdev->rst_stats.hw_rst_done_cnt);
+ dev_info(&hdev->pdev->dev, "reset count: %u\n",
+ hdev->rst_stats.rst_cnt);
+ dev_info(&hdev->pdev->dev, "reset fail count: %u\n",
+ hdev->rst_stats.rst_fail_cnt);
+ dev_info(&hdev->pdev->dev, "vector0 interrupt enable status: 0x%x\n",
+ hclgevf_read_dev(&hdev->hw, HCLGEVF_MISC_VECTOR_REG_BASE));
+ dev_info(&hdev->pdev->dev, "vector0 interrupt status: 0x%x\n",
+ hclgevf_read_dev(&hdev->hw, HCLGEVF_VECTOR0_CMDQ_STAT_REG));
+ dev_info(&hdev->pdev->dev, "handshake status: 0x%x\n",
+ hclgevf_read_dev(&hdev->hw, HCLGEVF_CMDQ_TX_DEPTH_REG));
+ dev_info(&hdev->pdev->dev, "function reset status: 0x%x\n",
+ hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING));
+ dev_info(&hdev->pdev->dev, "hdev state: 0x%lx\n", hdev->state);
+}
+
static void hclgevf_reset_err_handle(struct hclgevf_dev *hdev)
{
/* recover handshake status with IMP when reset fail */
@@ -1563,6 +1590,8 @@ static void hclgevf_reset_err_handle(struct hclgevf_dev *hdev)
if (hclgevf_is_reset_pending(hdev)) {
set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state);
hclgevf_reset_task_schedule(hdev);
+ } else {
+ hclgevf_dump_rst_info(hdev);
}
}
--
2.7.4
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