linux-kernel - [PATCH] crypto: hisilicon/qm - print device abnormal information

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Message-ID: <20231028102244.43918-1-qianweili@huawei.com>
Date:   Sat, 28 Oct 2023 18:22:44 +0800
From:   Weili Qian <qianweili@...wei.com>
To:     <herbert@...dor.apana.org.au>
CC:     <linux-crypto@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <liulongfang@...wei.com>, Weili Qian <qianweili@...wei.com>
Subject: [PATCH] crypto: hisilicon/qm - print device abnormal information

When device is abnormal and reports abnormal interrupt event to driver,
the driver can print device information for error analysis. This patch
adds some device error-related information output after the device reports
an abnormal interrupt.

Signed-off-by: Weili Qian <qianweili@...wei.com>
---
 drivers/crypto/hisilicon/qm.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c
index 18599f3634c3..4d91a249be74 100644
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@ -129,16 +129,21 @@
 #define QM_FIFO_OVERFLOW_TYPE		0xc0
 #define QM_FIFO_OVERFLOW_TYPE_SHIFT	6
 #define QM_FIFO_OVERFLOW_VF		0x3f
+#define QM_FIFO_OVERFLOW_QP_SHIFT	16
 #define QM_ABNORMAL_INF01		0x100014
 #define QM_DB_TIMEOUT_TYPE		0xc0
 #define QM_DB_TIMEOUT_TYPE_SHIFT	6
 #define QM_DB_TIMEOUT_VF		0x3f
+#define QM_DB_TIMEOUT_QP_SHIFT		16
+#define QM_ABNORMAL_INF02		0x100018
+#define QM_AXI_POISON_ERR		BIT(22)
 #define QM_RAS_CE_ENABLE		0x1000ec
 #define QM_RAS_FE_ENABLE		0x1000f0
 #define QM_RAS_NFE_ENABLE		0x1000f4
 #define QM_RAS_CE_THRESHOLD		0x1000f8
 #define QM_RAS_CE_TIMES_PER_IRQ		1
 #define QM_OOO_SHUTDOWN_SEL		0x1040f8
+#define QM_AXI_RRESP_ERR		BIT(0)
 #define QM_ECC_MBIT			BIT(2)
 #define QM_DB_TIMEOUT			BIT(10)
 #define QM_OF_FIFO_OF			BIT(11)
@@ -1406,7 +1411,7 @@ static void qm_log_hw_error(struct hisi_qm *qm, u32 error_status)
 {
 	const struct hisi_qm_hw_error *err;
 	struct device *dev = &qm->pdev->dev;
-	u32 reg_val, type, vf_num;
+	u32 reg_val, type, vf_num, qp_id;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(qm_hw_error); i++) {
@@ -1422,19 +1427,24 @@ static void qm_log_hw_error(struct hisi_qm *qm, u32 error_status)
 			type = (reg_val & QM_DB_TIMEOUT_TYPE) >>
 			       QM_DB_TIMEOUT_TYPE_SHIFT;
 			vf_num = reg_val & QM_DB_TIMEOUT_VF;
-			dev_err(dev, "qm %s doorbell timeout in function %u\n",
-				qm_db_timeout[type], vf_num);
+			qp_id = reg_val >> QM_DB_TIMEOUT_QP_SHIFT;
+			dev_err(dev, "qm %s doorbell timeout in function %u qp %u\n",
+				qm_db_timeout[type], vf_num, qp_id);
 		} else if (err->int_msk & QM_OF_FIFO_OF) {
 			reg_val = readl(qm->io_base + QM_ABNORMAL_INF00);
 			type = (reg_val & QM_FIFO_OVERFLOW_TYPE) >>
 			       QM_FIFO_OVERFLOW_TYPE_SHIFT;
 			vf_num = reg_val & QM_FIFO_OVERFLOW_VF;
-
+			qp_id = reg_val >> QM_FIFO_OVERFLOW_QP_SHIFT;
 			if (type < ARRAY_SIZE(qm_fifo_overflow))
-				dev_err(dev, "qm %s fifo overflow in function %u\n",
-					qm_fifo_overflow[type], vf_num);
+				dev_err(dev, "qm %s fifo overflow in function %u qp %u\n",
+					qm_fifo_overflow[type], vf_num, qp_id);
 			else
 				dev_err(dev, "unknown error type\n");
+		} else if (err->int_msk & QM_AXI_RRESP_ERR) {
+			reg_val = readl(qm->io_base + QM_ABNORMAL_INF02);
+			if (reg_val & QM_AXI_POISON_ERR)
+				dev_err(dev, "qm axi poison error happened\n");
 		}
 	}
 }
-- 
2.33.0