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Subject[PATCH net-next 03/12] net: hns3: add some debug information for hclge_check_event_cause
Date
When received vector0 msix and other event interrupt, it should
print the value of the register for debugging.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 2748c2f..9b7bc22 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2383,8 +2383,11 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
}

/* check for vector0 msix event source */
- if (msix_src_reg & HCLGE_VECTOR0_REG_MSIX_MASK)
+ if (msix_src_reg & HCLGE_VECTOR0_REG_MSIX_MASK) {
+ dev_dbg(&hdev->pdev->dev, "received event 0x%x\n",
+ msix_src_reg);
return HCLGE_VECTOR0_EVENT_ERR;
+ }

/* check for vector0 mailbox(=CMDQ RX) event source */
if (BIT(HCLGE_VECTOR0_RX_CMDQ_INT_B) & cmdq_src_reg) {
@@ -2393,6 +2396,9 @@ static u32 hclge_check_event_cause(struct hclge_dev *hdev, u32 *clearval)
return HCLGE_VECTOR0_EVENT_MBX;
}

+ /* print other vector0 event source */
+ dev_dbg(&hdev->pdev->dev, "cmdq_src_reg:0x%x, msix_src_reg:0x%x\n",
+ cmdq_src_reg, msix_src_reg);
return HCLGE_VECTOR0_EVENT_OTHER;
}

--
2.7.4
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