From: Jiaran Zhang zhangjiaran@huawei.com
mainline inclusion from mainline-master commit 1a7ff8280b16fe8a085e24aca9008724700d6878 category: feature bugzilla: 173966 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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Currently, the debugfs command for reset info is implemented by "echo xxxx > cmd", and record the information in dmesg. It's unnecessary and heavy. To improve it, create a single file "reset_info" for it, and query it by command "cat reset_info", return the result to userspace, rather than record in dmesg.
The display style is below: $cat reset_info PF reset count: 0 FLR reset count: 0 GLOBAL reset count: 0 IMP reset count: 0 reset done count: 0 HW reset done count: 0 reset count: 0 reset fail count: 0 vector0 interrupt enable status: 0x1 reset interrupt source: 0x0 reset interrupt status: 0x0 RAS interrupt status:0x0 hardware reset status: 0x0 handshake status: 0x80 function reset status: 0x0
Change to the "hclge_show_rst_info" in the "hclge_reset_err_handle", when the reset fails, display reset info immediately.
Signed-off-by: Jiaran Zhang zhangjiaran@huawei.com Signed-off-by: Huazhong Tan tanhuazhong@huawei.com Signed-off-by: David S. Miller davem@davemloft.net Reviewed-by: Yongxin Li liyongxin1@huawei.com Signed-off-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 + .../ethernet/hisilicon/hns3/hns3_debugfs.c | 8 +- .../hisilicon/hns3/hns3pf/hclge_debugfs.c | 76 +++++++++++-------- .../hisilicon/hns3/hns3pf/hclge_main.c | 17 ++++- .../hisilicon/hns3/hns3pf/hclge_main.h | 4 +- 5 files changed, 71 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 4d8294b43eab..57dc5e69a5fc 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -261,6 +261,7 @@ enum hnae3_dbg_cmd { HNAE3_DBG_CMD_MNG_TBL, HNAE3_DBG_CMD_LOOPBACK, HNAE3_DBG_CMD_INTERRUPT_INFO, + HNAE3_DBG_CMD_RESET_INFO, HNAE3_DBG_CMD_UNKNOWN, };
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index 0eb5eda10ee0..49c87c8ac37f 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -111,6 +111,13 @@ static struct hns3_dbg_cmd_info hns3_dbg_cmd[] = { .buf_len = HNS3_DBG_READ_LEN, .init = hns3_dbg_common_file_init, }, + { + .name = "reset_info", + .cmd = HNAE3_DBG_CMD_RESET_INFO, + .dentry = HNS3_DBG_DENTRY_COMMON, + .buf_len = HNS3_DBG_READ_LEN, + .init = hns3_dbg_common_file_init, + }, };
static struct hns3_dbg_cap_info hns3_dbg_cap[] = { @@ -505,7 +512,6 @@ static void hns3_dbg_help(struct hnae3_handle *h) dev_info(&h->pdev->dev, "dump qos pause cfg\n"); 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 reset info\n"); dev_info(&h->pdev->dev, "dump m7 info\n"); dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n"); dev_info(&h->pdev->dev, "dump mac tnl status\n"); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c index c3d84a4bd734..736746b6ff75 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c @@ -4,6 +4,7 @@ #include <linux/device.h>
#include "hclge_debugfs.h" +#include "hclge_err.h" #include "hclge_main.h" #include "hclge_tm.h" #include "hnae3.h" @@ -1389,37 +1390,46 @@ static void hclge_dbg_fd_tcam(struct hclge_dev *hdev) kfree(rule_locs); }
-void hclge_dbg_dump_rst_info(struct hclge_dev *hdev) +int hclge_dbg_dump_rst_info(struct hclge_dev *hdev, char *buf, int len) { - dev_info(&hdev->pdev->dev, "PF reset count: %u\n", - hdev->rst_stats.pf_rst_cnt); - dev_info(&hdev->pdev->dev, "FLR reset count: %u\n", - hdev->rst_stats.flr_rst_cnt); - dev_info(&hdev->pdev->dev, "GLOBAL reset count: %u\n", - hdev->rst_stats.global_rst_cnt); - dev_info(&hdev->pdev->dev, "IMP reset count: %u\n", - hdev->rst_stats.imp_rst_cnt); - dev_info(&hdev->pdev->dev, "reset done count: %u\n", - hdev->rst_stats.reset_done_cnt); - dev_info(&hdev->pdev->dev, "HW reset done count: %u\n", - 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 fail count: %u\n", - hdev->rst_stats.reset_fail_cnt); - dev_info(&hdev->pdev->dev, "vector0 interrupt enable status: 0x%x\n", - hclge_read_dev(&hdev->hw, HCLGE_MISC_VECTOR_REG_BASE)); - dev_info(&hdev->pdev->dev, "reset interrupt source: 0x%x\n", - hclge_read_dev(&hdev->hw, HCLGE_MISC_RESET_STS_REG)); - dev_info(&hdev->pdev->dev, "reset interrupt status: 0x%x\n", - hclge_read_dev(&hdev->hw, HCLGE_MISC_VECTOR_INT_STS)); - dev_info(&hdev->pdev->dev, "hardware reset status: 0x%x\n", - hclge_read_dev(&hdev->hw, HCLGE_GLOBAL_RESET_REG)); - dev_info(&hdev->pdev->dev, "handshake status: 0x%x\n", - 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); + int pos = 0; + + pos += scnprintf(buf + pos, len - pos, "PF reset count: %u\n", + hdev->rst_stats.pf_rst_cnt); + pos += scnprintf(buf + pos, len - pos, "FLR reset count: %u\n", + hdev->rst_stats.flr_rst_cnt); + pos += scnprintf(buf + pos, len - pos, "GLOBAL reset count: %u\n", + hdev->rst_stats.global_rst_cnt); + pos += scnprintf(buf + pos, len - pos, "IMP reset count: %u\n", + hdev->rst_stats.imp_rst_cnt); + pos += scnprintf(buf + pos, len - pos, "reset done count: %u\n", + hdev->rst_stats.reset_done_cnt); + pos += scnprintf(buf + pos, len - pos, "HW reset done count: %u\n", + hdev->rst_stats.hw_reset_done_cnt); + pos += scnprintf(buf + pos, len - pos, "reset count: %u\n", + hdev->rst_stats.reset_cnt); + pos += scnprintf(buf + pos, len - pos, "reset fail count: %u\n", + hdev->rst_stats.reset_fail_cnt); + pos += scnprintf(buf + pos, len - pos, + "vector0 interrupt enable status: 0x%x\n", + hclge_read_dev(&hdev->hw, HCLGE_MISC_VECTOR_REG_BASE)); + pos += scnprintf(buf + pos, len - pos, "reset interrupt source: 0x%x\n", + hclge_read_dev(&hdev->hw, HCLGE_MISC_RESET_STS_REG)); + pos += scnprintf(buf + pos, len - pos, "reset interrupt status: 0x%x\n", + hclge_read_dev(&hdev->hw, HCLGE_MISC_VECTOR_INT_STS)); + pos += scnprintf(buf + pos, len - pos, "RAS interrupt status: 0x%x\n", + hclge_read_dev(&hdev->hw, + HCLGE_RAS_PF_OTHER_INT_STS_REG)); + pos += scnprintf(buf + pos, len - pos, "hardware reset status: 0x%x\n", + hclge_read_dev(&hdev->hw, HCLGE_GLOBAL_RESET_REG)); + pos += scnprintf(buf + pos, len - pos, "handshake status: 0x%x\n", + hclge_read_dev(&hdev->hw, HCLGE_NIC_CSQ_DEPTH_REG)); + pos += scnprintf(buf + pos, len - pos, "function reset status: 0x%x\n", + hclge_read_dev(&hdev->hw, HCLGE_FUN_RST_ING)); + pos += scnprintf(buf + pos, len - pos, "hdev state: 0x%lx\n", + hdev->state); + + return 0; }
static void hclge_dbg_dump_serv_info(struct hclge_dev *hdev) @@ -1819,8 +1829,6 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, const char *cmd_buf) hclge_dbg_dump_qos_buf_cfg(hdev); } else if (strncmp(cmd_buf, DUMP_REG, strlen(DUMP_REG)) == 0) { hclge_dbg_dump_reg_cmd(hdev, &cmd_buf[sizeof(DUMP_REG)]); - } else if (strncmp(cmd_buf, "dump reset info", 15) == 0) { - hclge_dbg_dump_rst_info(hdev); } else if (strncmp(cmd_buf, "dump serv info", 14) == 0) { hclge_dbg_dump_serv_info(hdev); } else if (strncmp(cmd_buf, "dump m7 info", 12) == 0) { @@ -1874,6 +1882,10 @@ static const struct hclge_dbg_func hclge_dbg_cmd_func[] = { .cmd = HNAE3_DBG_CMD_INTERRUPT_INFO, .dbg_dump = hclge_dbg_dump_interrupt, }, + { + .cmd = HNAE3_DBG_CMD_RESET_INFO, + .dbg_dump = hclge_dbg_dump_rst_info, + }, };
int hclge_dbg_read_cmd(struct hnae3_handle *handle, enum hnae3_dbg_cmd cmd, diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 55b0453d3948..d4d3f0b247af 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -3936,6 +3936,21 @@ static int hclge_reset_prepare_wait(struct hclge_dev *hdev) return ret; }
+static void hclge_show_rst_info(struct hclge_dev *hdev) +{ + char *buf; + + buf = kzalloc(HCLGE_DBG_RESET_INFO_LEN, GFP_KERNEL); + if (!buf) + return; + + hclge_dbg_dump_rst_info(hdev, buf, HCLGE_DBG_RESET_INFO_LEN); + + dev_info(&hdev->pdev->dev, "dump reset info:\n%s", buf); + + kfree(buf); +} + static bool hclge_reset_err_handle(struct hclge_dev *hdev) { #define MAX_RESET_FAIL_CNT 5 @@ -3966,7 +3981,7 @@ static bool hclge_reset_err_handle(struct hclge_dev *hdev)
dev_err(&hdev->pdev->dev, "Reset fail!\n");
- hclge_dbg_dump_rst_info(hdev); + hclge_show_rst_info(hdev);
set_bit(HCLGE_STATE_RST_FAIL, &hdev->state);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h index 9e17c02de403..8bf451ef0b05 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h @@ -148,6 +148,8 @@
#define HCLGE_MAX_QSET_NUM 1024
+#define HCLGE_DBG_RESET_INFO_LEN 1024 + enum HLCGE_PORT_TYPE { HOST_PORT, NETWORK_PORT @@ -1089,6 +1091,6 @@ 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); +int hclge_dbg_dump_rst_info(struct hclge_dev *hdev, char *buf, int len); int hclge_push_vf_link_status(struct hclge_vport *vport); #endif