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From: Jijie Shao <shaojijie@huawei.com>
To: <yisen.zhuang@huawei.com>, <salil.mehta@huawei.com>,
	<davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>,
	<pabeni@redhat.com>, <horms@kernel.org>
CC: <shenjian15@huawei.com>, <wangjie125@huawei.com>,
	<liuyonglong@huawei.com>, <lanhao@huawei.com>, <wangpeiyang1@huawei.com>,
	<shaojijie@huawei.com>, <netdev@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH V4 net-next 3/4] net: hns3: dump more reg info based on ras mod
Date: Fri, 5 Jan 2024 09:01:18 +0800
Message-ID: <20240105010119.2619873-4-shaojijie@huawei.com>
In-Reply-To: <20240105010119.2619873-1-shaojijie@huawei.com>
References: <20240105010119.2619873-1-shaojijie@huawei.com>
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From: Peiyang Wang <wangpeiyang1@huawei.com>

Dump more reg info base on ras mod before reset, which is useful to
analyze the ras error.

Signed-off-by: Peiyang Wang <wangpeiyang1@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hnae3.h   |   4 +
 .../hns3/hns3_common/hclge_comm_cmd.c         |   1 +
 .../hns3/hns3_common/hclge_comm_cmd.h         |   2 +
 .../hisilicon/hns3/hns3pf/hclge_debugfs.c     |   6 +-
 .../hisilicon/hns3/hns3pf/hclge_debugfs.h     |   3 +
 .../hisilicon/hns3/hns3pf/hclge_err.c         | 434 +++++++++++++++++-
 .../hisilicon/hns3/hns3pf/hclge_err.h         |  36 ++
 7 files changed, 478 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index d7e175a9cb49..ff475b0eac22 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -104,6 +104,7 @@ enum HNAE3_DEV_CAP_BITS {
 	HNAE3_DEV_SUPPORT_WOL_B,
 	HNAE3_DEV_SUPPORT_TM_FLUSH_B,
 	HNAE3_DEV_SUPPORT_VF_FAULT_B,
+	HNAE3_DEV_SUPPORT_ERR_MOD_GEN_REG_B,
 };
 
 #define hnae3_ae_dev_fd_supported(ae_dev) \
@@ -181,6 +182,9 @@ enum HNAE3_DEV_CAP_BITS {
 #define hnae3_ae_dev_vf_fault_supported(ae_dev) \
 	test_bit(HNAE3_DEV_SUPPORT_VF_FAULT_B, (ae_dev)->caps)
 
+#define hnae3_ae_dev_gen_reg_dfx_supported(hdev) \
+	test_bit(HNAE3_DEV_SUPPORT_ERR_MOD_GEN_REG_B, (hdev)->ae_dev->caps)
+
 enum HNAE3_PF_CAP_BITS {
 	HNAE3_PF_SUPPORT_VLAN_FLTR_MDF_B = 0,
 };
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
index 8ee5d62a7577..cb602a7b730f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.c
@@ -158,6 +158,7 @@ static const struct hclge_comm_caps_bit_map hclge_pf_cmd_caps[] = {
 	{HCLGE_COMM_CAP_WOL_B, HNAE3_DEV_SUPPORT_WOL_B},
 	{HCLGE_COMM_CAP_TM_FLUSH_B, HNAE3_DEV_SUPPORT_TM_FLUSH_B},
 	{HCLGE_COMM_CAP_VF_FAULT_B, HNAE3_DEV_SUPPORT_VF_FAULT_B},
+	{HCLGE_COMM_CAP_ERR_MOD_GEN_REG_B, HNAE3_DEV_SUPPORT_ERR_MOD_GEN_REG_B},
 };
 
 static const struct hclge_comm_caps_bit_map hclge_vf_cmd_caps[] = {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
index 387807b47d9a..02a0a7df49cc 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_common/hclge_comm_cmd.h
@@ -91,6 +91,7 @@ enum hclge_opcode_type {
 	HCLGE_OPC_DFX_RCB_REG		= 0x004D,
 	HCLGE_OPC_DFX_TQP_REG		= 0x004E,
 	HCLGE_OPC_DFX_SSU_REG_2		= 0x004F,
+	HCLGE_OPC_DFX_GEN_REG		= 0x7038,
 
 	HCLGE_OPC_QUERY_DEV_SPECS	= 0x0050,
 	HCLGE_OPC_GET_QUEUE_ERR_VF      = 0x0067,
@@ -353,6 +354,7 @@ enum HCLGE_COMM_CAP_BITS {
 	HCLGE_COMM_CAP_LANE_NUM_B = 27,
 	HCLGE_COMM_CAP_WOL_B = 28,
 	HCLGE_COMM_CAP_TM_FLUSH_B = 31,
+	HCLGE_COMM_CAP_ERR_MOD_GEN_REG_B = 32,
 };
 
 enum HCLGE_COMM_API_CAP_BITS {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 243be19a7557..debf143e9940 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -801,10 +801,8 @@ static int hclge_dbg_get_dfx_bd_num(struct hclge_dev *hdev, int offset,
 	return 0;
 }
 
-static int hclge_dbg_cmd_send(struct hclge_dev *hdev,
-			      struct hclge_desc *desc_src,
-			      int index, int bd_num,
-			      enum hclge_opcode_type cmd)
+int hclge_dbg_cmd_send(struct hclge_dev *hdev, struct hclge_desc *desc_src,
+		       int index, int bd_num, enum hclge_opcode_type cmd)
 {
 	struct hclge_desc *desc = desc_src;
 	int ret, i;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
index 31a775fb032b..2b998cbed826 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.h
@@ -131,4 +131,7 @@ struct hclge_dbg_vlan_cfg {
 	u8 pri_only2;
 };
 
+int hclge_dbg_cmd_send(struct hclge_dev *hdev, struct hclge_desc *desc_src,
+		       int index, int bd_num, enum hclge_opcode_type cmd);
+
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
index d63e114f93d0..468372b7253d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
@@ -1198,6 +1198,426 @@ static const struct hclge_hw_error hclge_rocee_qmm_ovf_err_int[] = {
 	}
 };
 
+static const struct hclge_mod_reg_info hclge_ssu_reg_0_info[] = {
+	{
+		.reg_name = "SSU_BP_STATUS_0~5",
+		.reg_offset_group = { 5, 6, 7, 8, 9, 10},
+		.group_size = 6
+	}, {
+		.reg_name = "LO_PRI_UNICAST_CUR_CNT",
+		.reg_offset_group = {54},
+		.group_size = 1
+	}, {
+		.reg_name = "HI/LO_PRI_MULTICAST_CUR_CNT",
+		.reg_offset_group = {55, 56},
+		.group_size = 2
+	}, {
+		.reg_name = "SSU_MB_RD_RLT_DROP_CNT",
+		.reg_offset_group = {29},
+		.group_size = 1
+	}, {
+		.reg_name = "SSU_PPP_MAC_KEY_NUM",
+		.reg_offset_group = {31, 30},
+		.group_size = 2
+	}, {
+		.reg_name = "SSU_PPP_HOST_KEY_NUM",
+		.reg_offset_group = {33, 32},
+		.group_size = 2
+	}, {
+		.reg_name = "PPP_SSU_MAC/HOST_RLT_NUM",
+		.reg_offset_group = {35, 34, 37, 36},
+		.group_size = 4
+	}, {
+		.reg_name = "FULL/PART_DROP_NUM",
+		.reg_offset_group = {18, 19},
+		.group_size = 2
+	}, {
+		.reg_name = "PPP_KEY/RLT_DROP_NUM",
+		.reg_offset_group = {20, 21},
+		.group_size = 2
+	}, {
+		.reg_name = "NIC/ROC_L2_ERR_DROP_PKT_CNT",
+		.reg_offset_group = {48, 49},
+		.group_size = 2
+	}, {
+		.reg_name = "NIC/ROC_L2_ERR_DROP_PKT_CNT_RX",
+		.reg_offset_group = {50, 51},
+		.group_size = 2
+	},
+};
+
+static const struct hclge_mod_reg_info hclge_ssu_reg_1_info[] = {
+	{
+		.reg_name = "RX_PACKET_IN/OUT_CNT",
+		.reg_offset_group = {13, 12, 15, 14},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_IN/OUT_CNT",
+		.reg_offset_group = {17, 16, 19, 18},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC0_IN/OUT_CNT",
+		.reg_offset_group = {25, 24, 41, 40},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC1_IN/OUT_CNT",
+		.reg_offset_group = {27, 26, 43, 42},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC2_IN/OUT_CNT",
+		.reg_offset_group = {29, 28, 45, 44},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC3_IN/OUT_CNT",
+		.reg_offset_group = {31, 30, 47, 46},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC4_IN/OUT_CNT",
+		.reg_offset_group = {33, 32, 49, 48},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC5_IN/OUT_CNT",
+		.reg_offset_group = {35, 34, 51, 50},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC6_IN/OUT_CNT",
+		.reg_offset_group = {37, 36, 53, 52},
+		.group_size = 4
+	}, {
+		.reg_name = "RX_PACKET_TC7_IN/OUT_CNT",
+		.reg_offset_group = {39, 38, 55, 54},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC0_IN/OUT_CNT",
+		.reg_offset_group = {57, 56, 73, 72},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC1_IN/OUT_CNT",
+		.reg_offset_group = {59, 58, 75, 74},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC2_IN/OUT_CNT",
+		.reg_offset_group = {61, 60, 77, 76},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC3_IN/OUT_CNT",
+		.reg_offset_group = {63, 62, 79, 78},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC4_IN/OUT_CNT",
+		.reg_offset_group = {65, 64, 81, 80},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC5_IN/OUT_CNT",
+		.reg_offset_group = {67, 66, 83, 82},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC6_IN/OUT_CNT",
+		.reg_offset_group = {69, 68, 85, 84},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PACKET_TC7_IN/OUT_CNT",
+		.reg_offset_group = {71, 70, 87, 86},
+		.group_size = 4
+	}, {
+		.reg_name = "PACKET_TC0~3_CURR_BUFFER_CNT",
+		.reg_offset_group = {1, 2, 3, 4},
+		.group_size = 4
+	}, {
+		.reg_name = "PACKET_TC4~7_CURR_BUFFER_CNT",
+		.reg_offset_group = {5, 6, 7, 8},
+		.group_size = 4
+	}, {
+		.reg_name = "ROC_RX_PACKET_IN_CNT",
+		.reg_offset_group = {21, 20},
+		.group_size = 2
+	}, {
+		.reg_name = "ROC_TX_PACKET_OUT_CNT",
+		.reg_offset_group = {23, 22},
+		.group_size = 2
+	}
+};
+
+static const struct hclge_mod_reg_info hclge_rpu_reg_0_info[] = {
+	{
+		.reg_name = "RPU_FSM_DFX_ST0/ST1_TNL",
+		.has_suffix = true,
+		.reg_offset_group = {1, 2},
+		.group_size = 2
+	}, {
+		.reg_name = "RPU_RX_PKT_DROP_CNT_TNL",
+		.has_suffix = true,
+		.reg_offset_group = {3},
+		.group_size = 1
+	}
+};
+
+static const struct hclge_mod_reg_info hclge_rpu_reg_1_info[] = {
+	{
+		.reg_name = "FIFO_DFX_ST0_1_2_4",
+		.reg_offset_group = {1, 2, 3, 5},
+		.group_size = 4
+	}
+};
+
+static const struct hclge_mod_reg_info hclge_igu_egu_reg_info[] = {
+	{
+		.reg_name = "IGU_RX_ERR_PKT",
+		.reg_offset_group = {1},
+		.group_size = 1
+	}, {
+		.reg_name = "IGU_RX_OUT_ALL_PKT",
+		.reg_offset_group = {29, 28},
+		.group_size = 2
+	}, {
+		.reg_name = "EGU_TX_OUT_ALL_PKT",
+		.reg_offset_group = {39, 38},
+		.group_size = 2
+	}, {
+		.reg_name = "EGU_TX_ERR_PKT",
+		.reg_offset_group = {5},
+		.group_size = 1
+	}
+};
+
+static const struct hclge_mod_reg_info hclge_gen_reg_info_tnl[] = {
+	{
+		.reg_name = "SSU2RPU_TNL_WR_PKT_CNT_TNL",
+		.has_suffix = true,
+		.reg_offset_group = {1},
+		.group_size = 1
+	}, {
+		.reg_name = "RPU2HST_TNL_WR_PKT_CNT_TNL",
+		.has_suffix = true,
+		.reg_offset_group = {12},
+		.group_size = 1
+	}
+};
+
+static const struct hclge_mod_reg_info hclge_gen_reg_info[] = {
+	{
+		.reg_name = "SSU_OVERSIZE_DROP_CNT",
+		.reg_offset_group = {12},
+		.group_size = 1
+	}, {
+		.reg_name = "ROCE_RX_BYPASS_5NS_DROP_NUM",
+		.reg_offset_group = {13},
+		.group_size = 1
+	}, {
+		.reg_name = "RX_PKT_IN/OUT_ERR_CNT",
+		.reg_offset_group = {15, 14, 19, 18},
+		.group_size = 4
+	}, {
+		.reg_name = "TX_PKT_IN/OUT_ERR_CNT",
+		.reg_offset_group = {17, 16, 21, 20},
+		.group_size = 4
+	}, {
+		.reg_name = "ETS_TC_READY",
+		.reg_offset_group = {22},
+		.group_size = 1
+	}, {
+		.reg_name = "MIB_TX/RX_BAD_PKTS",
+		.reg_offset_group = {19, 18, 29, 28},
+		.group_size = 4
+	}, {
+		.reg_name = "MIB_TX/RX_GOOD_PKTS",
+		.reg_offset_group = {21, 20, 31, 30},
+		.group_size = 4
+	}, {
+		.reg_name = "MIB_TX/RX_TOTAL_PKTS",
+		.reg_offset_group = {23, 22, 33, 32},
+		.group_size = 4
+	}, {
+		.reg_name = "MIB_TX/RX_PAUSE_PKTS",
+		.reg_offset_group = {25, 24, 35, 34},
+		.group_size = 4
+	}, {
+		.reg_name = "MIB_TX_ERR_ALL_PKTS",
+		.reg_offset_group = {27, 26},
+		.group_size = 2
+	}, {
+		.reg_name = "MIB_RX_FCS_ERR_PKTS",
+		.reg_offset_group = {37, 36},
+		.group_size = 2
+	}, {
+		.reg_name = "IGU_EGU_AUTO_GATE_EN",
+		.reg_offset_group = {42},
+		.group_size = 1
+	}, {
+		.reg_name = "IGU_EGU_INT_SRC",
+		.reg_offset_group = {43},
+		.group_size = 1
+	}, {
+		.reg_name = "EGU_READY_NUM_CFG",
+		.reg_offset_group = {44},
+		.group_size = 1
+	}, {
+		.reg_name = "IGU_EGU_TNL_DFX",
+		.reg_offset_group = {45},
+		.group_size = 1
+	}, {
+		.reg_name = "TX_TNL_NOTE_PKT",
+		.reg_offset_group = {46},
+		.group_size = 1
+	}
+};
+
+static const struct hclge_mod_reg_common_msg hclge_ssu_reg_common_msg[] = {
+	{
+		.cmd = HCLGE_OPC_DFX_SSU_REG_0,
+		.result_regs = hclge_ssu_reg_0_info,
+		.bd_num = HCLGE_BD_NUM_SSU_REG_0,
+		.result_regs_size = ARRAY_SIZE(hclge_ssu_reg_0_info)
+	}, {
+		.cmd = HCLGE_OPC_DFX_SSU_REG_1,
+		.result_regs = hclge_ssu_reg_1_info,
+		.bd_num = HCLGE_BD_NUM_SSU_REG_1,
+		.result_regs_size = ARRAY_SIZE(hclge_ssu_reg_1_info)
+	}, {
+		.cmd = HCLGE_OPC_DFX_RPU_REG_0,
+		.result_regs = hclge_rpu_reg_0_info,
+		.bd_num = HCLGE_BD_NUM_RPU_REG_0,
+		.result_regs_size = ARRAY_SIZE(hclge_rpu_reg_0_info),
+		.need_para = true
+	}, {
+		.cmd = HCLGE_OPC_DFX_RPU_REG_1,
+		.result_regs = hclge_rpu_reg_1_info,
+		.bd_num = HCLGE_BD_NUM_RPU_REG_1,
+		.result_regs_size = ARRAY_SIZE(hclge_rpu_reg_1_info)
+	}, {
+		.cmd = HCLGE_OPC_DFX_IGU_EGU_REG,
+		.result_regs = hclge_igu_egu_reg_info,
+		.bd_num = HCLGE_BD_NUM_IGU_EGU_REG,
+		.result_regs_size = ARRAY_SIZE(hclge_igu_egu_reg_info)
+	}, {
+		.cmd = HCLGE_OPC_DFX_GEN_REG,
+		.result_regs = hclge_gen_reg_info_tnl,
+		.bd_num = HCLGE_BD_NUM_GEN_REG,
+		.result_regs_size = ARRAY_SIZE(hclge_gen_reg_info_tnl),
+		.need_para = true
+	}, {
+		.cmd = HCLGE_OPC_DFX_GEN_REG,
+		.result_regs = hclge_gen_reg_info,
+		.bd_num = HCLGE_BD_NUM_GEN_REG,
+		.result_regs_size = ARRAY_SIZE(hclge_gen_reg_info)
+	}
+};
+
+static int
+hclge_print_mod_reg_info(struct device *dev, struct hclge_desc *desc,
+			 const struct hclge_mod_reg_info *reg_info, int size)
+{
+	int i, j, pos, actual_len;
+	u8 offset, bd_idx, index;
+	char *buf;
+
+	buf = kzalloc(HCLGE_MOD_REG_INFO_LEN_MAX, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	for (i = 0; i < size; i++) {
+		actual_len = strlen(reg_info[i].reg_name) +
+			     HCLGE_MOD_REG_EXTRA_LEN +
+			     HCLGE_MOD_REG_VALUE_LEN * reg_info[i].group_size;
+		if (actual_len > HCLGE_MOD_REG_INFO_LEN_MAX) {
+			dev_info(dev, "length of reg(%s) is invalid, len=%d\n",
+				 reg_info[i].reg_name, actual_len);
+			continue;
+		}
+
+		pos = scnprintf(buf, HCLGE_MOD_REG_INFO_LEN_MAX, "%s",
+				reg_info[i].reg_name);
+		if (reg_info[i].has_suffix)
+			pos += scnprintf(buf + pos,
+					 HCLGE_MOD_REG_INFO_LEN_MAX - pos, "%u",
+					 le32_to_cpu(desc->data[0]));
+		pos += scnprintf(buf + pos,
+				 HCLGE_MOD_REG_INFO_LEN_MAX - pos,
+				 ":");
+		for (j = 0; j < reg_info[i].group_size; j++) {
+			offset = reg_info[i].reg_offset_group[j];
+			index = offset % HCLGE_DESC_DATA_LEN;
+			bd_idx = offset / HCLGE_DESC_DATA_LEN;
+			pos += scnprintf(buf + pos,
+					 HCLGE_MOD_REG_INFO_LEN_MAX - pos,
+					 " %08x",
+					 le32_to_cpu(desc[bd_idx].data[index]));
+		}
+		buf[pos] = '\0';
+		dev_info(dev, "%s\n", buf);
+	}
+
+	kfree(buf);
+	return 0;
+}
+
+static bool hclge_err_mod_check_support_cmd(enum hclge_opcode_type opcode,
+					    struct hclge_dev *hdev)
+{
+	if (opcode == HCLGE_OPC_DFX_GEN_REG &&
+	    !hnae3_ae_dev_gen_reg_dfx_supported(hdev))
+		return false;
+	return true;
+}
+
+/* For each common msg, send cmdq to IMP and print result reg info.
+ * If there is a parameter, loop it and request.
+ */
+static void
+hclge_query_reg_info(struct hclge_dev *hdev,
+		     struct hclge_mod_reg_common_msg *msg, u32 loop_time,
+		     u32 *loop_para)
+{
+	int desc_len, i, ret;
+
+	desc_len = msg->bd_num * sizeof(struct hclge_desc);
+	msg->desc = kzalloc(desc_len, GFP_KERNEL);
+	if (!msg->desc) {
+		dev_err(&hdev->pdev->dev, "failed to query reg info, ret=%d",
+			-ENOMEM);
+		return;
+	}
+
+	for (i = 0; i < loop_time; i++) {
+		ret = hclge_dbg_cmd_send(hdev, msg->desc, *loop_para,
+					 msg->bd_num, msg->cmd);
+		loop_para++;
+		if (ret)
+			continue;
+		ret = hclge_print_mod_reg_info(&hdev->pdev->dev, msg->desc,
+					       msg->result_regs,
+					       msg->result_regs_size);
+		if (ret)
+			dev_err(&hdev->pdev->dev, "failed to print mod reg info, ret=%d\n",
+				ret);
+	}
+
+	kfree(msg->desc);
+}
+
+static void hclge_query_reg_info_of_ssu(struct hclge_dev *hdev)
+{
+	u32 loop_para[HCLGE_MOD_MSG_PARA_ARRAY_MAX_SIZE] = {0};
+	struct hclge_mod_reg_common_msg msg;
+	u8 i, j, num;
+	u32 loop_time;
+
+	num = ARRAY_SIZE(hclge_ssu_reg_common_msg);
+	for (i = 0; i < num; i++) {
+		msg = hclge_ssu_reg_common_msg[i];
+		if (!hclge_err_mod_check_support_cmd(msg.cmd, hdev))
+			continue;
+		loop_time = 1;
+		loop_para[0] = 0;
+		if (msg.need_para) {
+			loop_time = hdev->ae_dev->dev_specs.tnl_num;
+			for (j = 0; j < loop_time; j++)
+				loop_para[j] = j + 1;
+		}
+		hclge_query_reg_info(hdev, &msg, loop_time, loop_para);
+	}
+}
+
 static const struct hclge_hw_module_id hclge_hw_module_id_st[] = {
 	{
 		.module_id = MODULE_NONE,
@@ -1210,7 +1630,8 @@ static const struct hclge_hw_module_id hclge_hw_module_id_st[] = {
 		.msg = "MODULE_GE"
 	}, {
 		.module_id = MODULE_IGU_EGU,
-		.msg = "MODULE_IGU_EGU"
+		.msg = "MODULE_IGU_EGU",
+		.query_reg_info = hclge_query_reg_info_of_ssu
 	}, {
 		.module_id = MODULE_LGE,
 		.msg = "MODULE_LGE"
@@ -1231,7 +1652,8 @@ static const struct hclge_hw_module_id hclge_hw_module_id_st[] = {
 		.msg = "MODULE_RTC"
 	}, {
 		.module_id = MODULE_SSU,
-		.msg = "MODULE_SSU"
+		.msg = "MODULE_SSU",
+		.query_reg_info = hclge_query_reg_info_of_ssu
 	}, {
 		.module_id = MODULE_TM,
 		.msg = "MODULE_TM"
@@ -2762,7 +3184,7 @@ void hclge_handle_occurred_error(struct hclge_dev *hdev)
 }
 
 static bool
-hclge_handle_error_type_reg_log(struct device *dev,
+hclge_handle_error_type_reg_log(struct hclge_dev *hdev,
 				struct hclge_mod_err_info *mod_info,
 				struct hclge_type_reg_err_info *type_reg_info)
 {
@@ -2770,6 +3192,7 @@ hclge_handle_error_type_reg_log(struct device *dev,
 #define HCLGE_ERR_TYPE_IS_RAS_OFFSET 7
 
 	u8 mod_id, total_module, type_id, total_type, i, is_ras;
+	struct device *dev = &hdev->pdev->dev;
 	u8 index_module = MODULE_NONE;
 	u8 index_type = NONE_ERROR;
 	bool cause_by_vf = false;
@@ -2810,6 +3233,9 @@ hclge_handle_error_type_reg_log(struct device *dev,
 	for (i = 0; i < type_reg_info->reg_num; i++)
 		dev_err(dev, "0x%08x\n", type_reg_info->hclge_reg[i]);
 
+	if (hclge_hw_module_id_st[index_module].query_reg_info)
+		hclge_hw_module_id_st[index_module].query_reg_info(hdev);
+
 	return cause_by_vf;
 }
 
@@ -2850,7 +3276,7 @@ static void hclge_handle_error_module_log(struct hnae3_ae_dev *ae_dev,
 
 			type_reg_info = (struct hclge_type_reg_err_info *)
 					    &buf[offset++];
-			if (hclge_handle_error_type_reg_log(dev, mod_info,
+			if (hclge_handle_error_type_reg_log(hdev, mod_info,
 							    type_reg_info))
 				cause_by_vf = true;
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h
index 68b738affa66..45a783a50643 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h
@@ -5,6 +5,7 @@
 #define __HCLGE_ERR_H
 
 #include "hclge_main.h"
+#include "hclge_debugfs.h"
 #include "hnae3.h"
 
 #define HCLGE_MPF_RAS_INT_MIN_BD_NUM	10
@@ -115,6 +116,18 @@
 #define HCLGE_REG_NUM_MAX			256
 #define HCLGE_DESC_NO_DATA_LEN			8
 
+#define HCLGE_BD_NUM_SSU_REG_0		10
+#define HCLGE_BD_NUM_SSU_REG_1		15
+#define HCLGE_BD_NUM_RPU_REG_0		1
+#define HCLGE_BD_NUM_RPU_REG_1		2
+#define HCLGE_BD_NUM_IGU_EGU_REG	9
+#define HCLGE_BD_NUM_GEN_REG		8
+#define HCLGE_MOD_REG_INFO_LEN_MAX	256
+#define HCLGE_MOD_REG_EXTRA_LEN		11
+#define HCLGE_MOD_REG_VALUE_LEN		9
+#define HCLGE_MOD_REG_GROUP_MAX_SIZE	6
+#define HCLGE_MOD_MSG_PARA_ARRAY_MAX_SIZE	8
+
 enum hclge_err_int_type {
 	HCLGE_ERR_INT_MSIX = 0,
 	HCLGE_ERR_INT_RAS_CE = 1,
@@ -191,6 +204,7 @@ struct hclge_hw_error {
 struct hclge_hw_module_id {
 	enum hclge_mod_name_list module_id;
 	const char *msg;
+	void (*query_reg_info)(struct hclge_dev *hdev);
 };
 
 struct hclge_hw_type_id {
@@ -218,6 +232,28 @@ struct hclge_type_reg_err_info {
 	u32 hclge_reg[HCLGE_REG_NUM_MAX];
 };
 
+struct hclge_mod_reg_info {
+	const char *reg_name;
+	bool has_suffix; /* add suffix for register name */
+	/* the positions of reg values in hclge_desc.data */
+	u8 reg_offset_group[HCLGE_MOD_REG_GROUP_MAX_SIZE];
+	u8 group_size;
+};
+
+/* This structure defines cmdq used to query the hardware module debug
+ * regisgers.
+ */
+struct hclge_mod_reg_common_msg {
+	enum hclge_opcode_type cmd;
+	struct hclge_desc *desc;
+	u8 bd_num; /* the bd number of hclge_desc used */
+	bool need_para; /* whether this cmdq needs to add para */
+
+	/* the regs need to print */
+	const struct hclge_mod_reg_info *result_regs;
+	u16 result_regs_size;
+};
+
 int hclge_config_mac_tnl_int(struct hclge_dev *hdev, bool en);
 int hclge_config_nic_hw_error(struct hclge_dev *hdev, bool state);
 int hclge_config_rocee_ras_interrupt(struct hclge_dev *hdev, bool en);
-- 
2.30.0