[PATCH net-next 01/12] net: hns3: add reset statistics info for PF

From: Huazhong Tan
Date: Thu Apr 18 2019 - 23:07:58 EST

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This patch adds statistics for PF's reset information,
also, provides a debugfs command to dump these statistics.

Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 1 +
.../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 22 ++++++++++++++++++++++
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 12 ++++++++++--
.../ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 13 ++++++++++++-
4 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
index 0de543f..c46da81 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -247,6 +247,7 @@ static void hns3_dbg_help(struct hnae3_handle *h)
dev_info(&h->pdev->dev, "dump qos pri map\n");
dev_info(&h->pdev->dev, "dump qos buf cfg\n");
dev_info(&h->pdev->dev, "dump mng tbl\n");
+ dev_info(&h->pdev->dev, "dump reset info\n");

memset(printf_buf, 0, HNS3_DBG_BUF_LEN);
strncat(printf_buf, "dump reg [[bios common] [ssu <prt_id>]",
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 1192cf6..d9782c7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -901,6 +901,26 @@ static void hclge_dbg_fd_tcam(struct hclge_dev *hdev)
}
}

+static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev)
+{
+ dev_info(&hdev->pdev->dev, "PF reset count: %d\n",
+ hdev->rst_stats.pf_rst_cnt);
+ dev_info(&hdev->pdev->dev, "FLR reset count: %d\n",
+ hdev->rst_stats.flr_rst_cnt);
+ dev_info(&hdev->pdev->dev, "CORE reset count: %d\n",
+ hdev->rst_stats.core_rst_cnt);
+ dev_info(&hdev->pdev->dev, "GLOBAL reset count: %d\n",
+ hdev->rst_stats.global_rst_cnt);
+ dev_info(&hdev->pdev->dev, "IMP reset count: %d\n",
+ hdev->rst_stats.imp_rst_cnt);
+ dev_info(&hdev->pdev->dev, "reset done count: %d\n",
+ hdev->rst_stats.reset_done_cnt);
+ dev_info(&hdev->pdev->dev, "HW reset done count: %d\n",
+ hdev->rst_stats.hw_reset_done_cnt);
+ dev_info(&hdev->pdev->dev, "reset count: %d\n",
+ hdev->rst_stats.reset_cnt);
+}
+
int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
{
struct hclge_vport *vport = hclge_get_vport(handle);
@@ -924,6 +944,8 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf)
hclge_dbg_dump_mng_table(hdev);
} else if (strncmp(cmd_buf, "dump reg", 8) == 0) {
hclge_dbg_dump_reg_cmd(hdev, cmd_buf);
+ } else if (strncmp(cmd_buf, "dump reset info", 15) == 0) {
+ hclge_dbg_dump_rst_info(hdev);
} else {
dev_info(&hdev->pdev->dev, "unknown command\n");
return -EINVAL;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 7dba3b4..2748c2f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2360,6 +2360,7 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
set_bit(HNAE3_IMP_RESET, &hdev->reset_pending);
set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
*clearval = BIT(HCLGE_VECTOR0_IMPRESET_INT_B);
+ hdev->rst_stats.imp_rst_cnt++;
return HCLGE_VECTOR0_EVENT_RST;
}

@@ -2368,6 +2369,7 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
set_bit(HNAE3_GLOBAL_RESET, &hdev->reset_pending);
*clearval = BIT(HCLGE_VECTOR0_GLOBALRESET_INT_B);
+ hdev->rst_stats.global_rst_cnt++;
return HCLGE_VECTOR0_EVENT_RST;
}

@@ -2376,6 +2378,7 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
set_bit(HNAE3_CORE_RESET, &hdev->reset_pending);
*clearval = BIT(HCLGE_VECTOR0_CORERESET_INT_B);
+ hdev->rst_stats.core_rst_cnt++;
return HCLGE_VECTOR0_EVENT_RST;
}

@@ -2873,6 +2876,7 @@ static int hclge_reset_prepare_wait(struct hclge_dev *hdev)
* after hclge_cmd_init is called.
*/
set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
+ hdev->rst_stats.pf_rst_cnt++;
break;
case HNAE3_FLR_RESET:
/* There is no mechanism for PF to know if VF has stopped IO
@@ -2881,6 +2885,7 @@ static int hclge_reset_prepare_wait(struct hclge_dev *hdev)
msleep(100);
set_bit(HCLGE_STATE_CMD_DISABLE, &hdev->state);
set_bit(HNAE3_FLR_DOWN, &hdev->flr_state);
+ hdev->rst_stats.flr_rst_cnt++;
break;
case HNAE3_IMP_RESET:
reg_val = hclge_read_dev(&hdev->hw, HCLGE_PF_OTHER_INT_REG);
@@ -2961,7 +2966,7 @@ static void hclge_reset(struct hclge_dev *hdev)
* know if device is undergoing reset
*/
ae_dev->reset_type = hdev->reset_type;
- hdev->reset_count++;
+ hdev->rst_stats.reset_cnt++;
/* perform reset of the stack & ae device for a client */
ret = hclge_notify_roce_client(hdev, HNAE3_DOWN_CLIENT);
if (ret)
@@ -2987,6 +2992,8 @@ static void hclge_reset(struct hclge_dev *hdev)
goto err_reset;
}

+ hdev->rst_stats.hw_reset_done_cnt++;
+
ret = hclge_notify_roce_client(hdev, HNAE3_UNINIT_CLIENT);
if (ret)
goto err_reset;
@@ -3030,6 +3037,7 @@ static void hclge_reset(struct hclge_dev *hdev)

hdev->last_reset_time = jiffies;
hdev->reset_fail_cnt = 0;
+ hdev->rst_stats.reset_done_cnt++;
ae_dev->reset_type = HNAE3_NONE_RESET;
del_timer(&hdev->reset_timer);

@@ -5224,7 +5232,7 @@ static unsigned long hclge_ae_dev_reset_cnt(struct hnae3_handle *handle)
struct hclge_vport *vport = hclge_get_vport(handle);
struct hclge_dev *hdev = vport->back;

- return hdev->reset_count;
+ return hdev->rst_stats.hw_reset_done_cnt;
}

static void hclge_enable_fd(struct hnae3_handle *handle, bool enable)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index e736030..6726b01 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -649,6 +649,17 @@ struct hclge_vport_vlan_cfg {
u16 vlan_id;
};

+struct hclge_rst_stats {
+ u32 reset_done_cnt; /* the number of reset has completed */
+ 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 */
+};
+
/* For each bit of TCAM entry, it uses a pair of 'x' and
* 'y' to indicate which value to match, like below:
* ----------------------------------
@@ -691,7 +702,7 @@ struct hclge_dev {
unsigned long default_reset_request;
unsigned long reset_request; /* reset has been requested */
unsigned long reset_pending; /* client rst is pending to be served */
- unsigned long reset_count; /* the number of reset has been done */
+ struct hclge_rst_stats rst_stats;
u32 reset_fail_cnt;
u32 fw_version;
u16 num_vmdq_vport; /* Num vmdq vport this PF has set up */
--
2.7.4

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Next in thread: Huazhong Tan: "[PATCH net-next 04/12] net: hns3: add some debug info for hclgevf_get_mbx_resp()"
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