From: Huazhong Tan <tanhuazhong@huawei.com>
Date: Fri, 19 Apr 2019 11:05:38 +0800
Subject: net: hns3: add some debug information for hclge_check_event_cause
Patch-mainline: v5.2-rc1
Git-commit: 147175c92a5cd83337157bf784389466bb380eef
References: bsc#1104353 FATE#326415 bsc#1134994
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- 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(struc
}
/* 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(struc
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;
}