net: hns3: Add enable and process hw errors from IGU, EGU and NCSI

This patch adds enable and processing of hw errors from IGU(Ingress Unit),
EGU(Egress Unit) and NCSI(Network Controller Sideband Interface).

Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 207 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 8525f18f3f5a..97c90aa8345c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -212,6 +212,15 @@ enum hclge_opcode_type {
 
 	/* Error INT commands */
 	HCLGE_COMMON_ECC_INT_CFG	= 0x1505,
+	HCLGE_IGU_EGU_TNL_INT_QUERY	= 0x1802,
+	HCLGE_IGU_EGU_TNL_INT_EN	= 0x1803,
+	HCLGE_IGU_EGU_TNL_INT_CLR	= 0x1804,
+	HCLGE_IGU_COMMON_INT_QUERY	= 0x1805,
+	HCLGE_IGU_COMMON_INT_EN		= 0x1806,
+	HCLGE_IGU_COMMON_INT_CLR	= 0x1807,
+	HCLGE_NCSI_INT_QUERY		= 0x2400,
+	HCLGE_NCSI_INT_EN		= 0x2401,
+	HCLGE_NCSI_INT_CLR		= 0x2402,
 };
 
 #define HCLGE_TQP_REG_OFFSET		0x80000
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
index 8b37de49e416..34c4edd311c5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.c
@@ -85,6 +85,30 @@ static const struct hclge_hw_error hclge_tqp_int_ecc_int[] = {
 	{ /* sentinel */ }
 };
 
+static const struct hclge_hw_error hclge_igu_com_err_int[] = {
+	{ .int_msk = BIT(0), .msg = "igu_rx_buf0_ecc_mbit_err" },
+	{ .int_msk = BIT(1), .msg = "igu_rx_buf0_ecc_1bit_err" },
+	{ .int_msk = BIT(2), .msg = "igu_rx_buf1_ecc_mbit_err" },
+	{ .int_msk = BIT(3), .msg = "igu_rx_buf1_ecc_1bit_err" },
+	{ /* sentinel */ }
+};
+
+static const struct hclge_hw_error hclge_igu_egu_tnl_err_int[] = {
+	{ .int_msk = BIT(0), .msg = "rx_buf_overflow" },
+	{ .int_msk = BIT(1), .msg = "rx_stp_fifo_overflow" },
+	{ .int_msk = BIT(2), .msg = "rx_stp_fifo_undeflow" },
+	{ .int_msk = BIT(3), .msg = "tx_buf_overflow" },
+	{ .int_msk = BIT(4), .msg = "tx_buf_underrun" },
+	{ .int_msk = BIT(5), .msg = "rx_stp_buf_overflow" },
+	{ /* sentinel */ }
+};
+
+static const struct hclge_hw_error hclge_ncsi_err_int[] = {
+	{ .int_msk = BIT(0), .msg = "ncsi_tx_ecc_1bit_err" },
+	{ .int_msk = BIT(1), .msg = "ncsi_tx_ecc_mbit_err" },
+	{ /* sentinel */ }
+};
+
 static void hclge_log_error(struct device *dev,
 			    const struct hclge_hw_error *err_list,
 			    u32 err_sts)
@@ -229,6 +253,75 @@ static int hclge_enable_common_error(struct hclge_dev *hdev, bool en)
 	return ret;
 }
 
+static int hclge_enable_ncsi_error(struct hclge_dev *hdev, bool en)
+{
+	struct device *dev = &hdev->pdev->dev;
+	struct hclge_desc desc;
+	int ret;
+
+	if (hdev->pdev->revision < 0x21)
+		return 0;
+
+	/* enable/disable NCSI  error interrupts */
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_NCSI_INT_EN, false);
+	if (en)
+		desc.data[0] = cpu_to_le32(HCLGE_NCSI_ERR_INT_EN);
+	else
+		desc.data[0] = 0;
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret)
+		dev_err(dev,
+			"failed(%d) to enable/disable NCSI error interrupts\n",
+			ret);
+
+	return ret;
+}
+
+static int hclge_enable_igu_egu_error(struct hclge_dev *hdev, bool en)
+{
+	struct device *dev = &hdev->pdev->dev;
+	struct hclge_desc desc;
+	int ret;
+
+	/* enable/disable error interrupts */
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_IGU_COMMON_INT_EN, false);
+	if (en)
+		desc.data[0] = cpu_to_le32(HCLGE_IGU_ERR_INT_EN);
+	else
+		desc.data[0] = 0;
+	desc.data[1] = cpu_to_le32(HCLGE_IGU_ERR_INT_EN_MASK);
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret) {
+		dev_err(dev,
+			"failed(%d) to enable/disable IGU common interrupts\n",
+			ret);
+		return ret;
+	}
+
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_IGU_EGU_TNL_INT_EN, false);
+	if (en)
+		desc.data[0] = cpu_to_le32(HCLGE_IGU_TNL_ERR_INT_EN);
+	else
+		desc.data[0] = 0;
+	desc.data[1] = cpu_to_le32(HCLGE_IGU_TNL_ERR_INT_EN_MASK);
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret) {
+		dev_err(dev,
+			"failed(%d) to enable/disable IGU-EGU TNL interrupts\n",
+			ret);
+		return ret;
+	}
+
+	ret = hclge_enable_ncsi_error(hdev, en);
+	if (ret)
+		dev_err(dev, "fail(%d) to en/disable err int\n", ret);
+
+	return ret;
+}
+
 static void hclge_process_common_error(struct hclge_dev *hdev,
 				       enum hclge_err_int_type type)
 {
@@ -285,7 +378,104 @@ static void hclge_process_common_error(struct hclge_dev *hdev,
 			ret);
 }
 
+static void hclge_process_ncsi_error(struct hclge_dev *hdev,
+				     enum hclge_err_int_type type)
+{
+	struct device *dev = &hdev->pdev->dev;
+	struct hclge_desc desc_rd;
+	struct hclge_desc desc_wr;
+	u32 err_sts;
+	int ret;
+
+	if (hdev->pdev->revision < 0x21)
+		return;
+
+	/* read NCSI error status */
+	ret = hclge_cmd_query_error(hdev, &desc_rd, HCLGE_NCSI_INT_QUERY,
+				    0, 1, HCLGE_NCSI_ERR_INT_TYPE);
+	if (ret) {
+		dev_err(dev,
+			"failed(=%d) to query NCSI error interrupt status\n",
+			ret);
+		return;
+	}
+
+	/* log err */
+	err_sts = le32_to_cpu(desc_rd.data[0]);
+	hclge_log_error(dev, &hclge_ncsi_err_int[0], err_sts);
+
+	/* clear err int */
+	ret = hclge_cmd_clear_error(hdev, &desc_wr, &desc_rd,
+				    HCLGE_NCSI_INT_CLR, 0);
+	if (ret)
+		dev_err(dev, "failed(=%d) to clear NCSI intrerrupt status\n",
+			ret);
+}
+
+static void hclge_process_igu_egu_error(struct hclge_dev *hdev,
+					enum hclge_err_int_type int_type)
+{
+	struct device *dev = &hdev->pdev->dev;
+	struct hclge_desc desc_rd;
+	struct hclge_desc desc_wr;
+	u32 err_sts;
+	int ret;
+
+	/* read IGU common err sts */
+	ret = hclge_cmd_query_error(hdev, &desc_rd,
+				    HCLGE_IGU_COMMON_INT_QUERY,
+				    0, 1, int_type);
+	if (ret) {
+		dev_err(dev, "failed(=%d) to query IGU common int status\n",
+			ret);
+		return;
+	}
+
+	/* log err */
+	err_sts = le32_to_cpu(desc_rd.data[0]) &
+				   HCLGE_IGU_COM_INT_MASK;
+	hclge_log_error(dev, &hclge_igu_com_err_int[0], err_sts);
+
+	/* clear err int */
+	ret = hclge_cmd_clear_error(hdev, &desc_wr, &desc_rd,
+				    HCLGE_IGU_COMMON_INT_CLR, 0);
+	if (ret) {
+		dev_err(dev, "failed(=%d) to clear IGU common int status\n",
+			ret);
+		return;
+	}
+
+	/* read IGU-EGU TNL err sts */
+	ret = hclge_cmd_query_error(hdev, &desc_rd,
+				    HCLGE_IGU_EGU_TNL_INT_QUERY,
+				    0, 1, int_type);
+	if (ret) {
+		dev_err(dev, "failed(=%d) to query IGU-EGU TNL int status\n",
+			ret);
+		return;
+	}
+
+	/* log err */
+	err_sts = le32_to_cpu(desc_rd.data[0]) &
+				   HCLGE_IGU_EGU_TNL_INT_MASK;
+	hclge_log_error(dev, &hclge_igu_egu_tnl_err_int[0], err_sts);
+
+	/* clear err int */
+	ret = hclge_cmd_clear_error(hdev, &desc_wr, &desc_rd,
+				    HCLGE_IGU_EGU_TNL_INT_CLR, 0);
+	if (ret) {
+		dev_err(dev, "failed(=%d) to clear IGU-EGU TNL int status\n",
+			ret);
+		return;
+	}
+
+	hclge_process_ncsi_error(hdev, HCLGE_ERR_INT_RAS_NFE);
+}
+
 static const struct hclge_hw_blk hw_blk[] = {
+	{ .msk = BIT(0), .name = "IGU_EGU",
+	  .enable_error = hclge_enable_igu_egu_error,
+	  .process_error = hclge_process_igu_egu_error, },
 	{ .msk = BIT(5), .name = "COMMON",
 	  .enable_error = hclge_enable_common_error,
 	  .process_error = hclge_process_common_error, },
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h
index b413141085a5..f46c8c29a17e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_err.h
@@ -23,6 +23,12 @@
 #define HCLGE_IMP_RD_POISON_ERR_INT_EN_MASK	0x0100
 #define HCLGE_TQP_ECC_ERR_INT_EN	0x0FFF
 #define HCLGE_TQP_ECC_ERR_INT_EN_MASK	0x0FFF
+#define HCLGE_IGU_ERR_INT_EN	0x0000066F
+#define HCLGE_IGU_ERR_INT_EN_MASK	0x000F
+#define HCLGE_IGU_TNL_ERR_INT_EN    0x0002AABF
+#define HCLGE_IGU_TNL_ERR_INT_EN_MASK  0x003F
+#define HCLGE_NCSI_ERR_INT_EN	0x3
+#define HCLGE_NCSI_ERR_INT_TYPE	0x9
 
 #define HCLGE_IMP_TCM_ECC_INT_MASK	0xFFFF
 #define HCLGE_IMP_ITCM4_ECC_INT_MASK	0x3
@@ -35,6 +41,8 @@
 #define HCLGE_CMDQ_NIC_ECC_CLR_MASK	0xFFFF
 #define HCLGE_CMDQ_ROCEE_ECC_CLR_MASK	0xFFFF0000
 #define HCLGE_TQP_IMP_ERR_CLR_MASK	0x0FFF0001
+#define HCLGE_IGU_COM_INT_MASK		0xF
+#define HCLGE_IGU_EGU_TNL_INT_MASK	0x3F
 
 enum hclge_err_int_type {
 	HCLGE_ERR_INT_MSIX = 0,