[PATCH net-next 11/12] net: hns3: check reset interrupt status when reset fails
From: Huazhong Tan <hidden>
Date: 2019-08-28 14:26:41
Also in:
lkml
Subsystem:
hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Currently, the reset interrupt will be cleared firstly, so when
reset fails, if interrupt status register has reset interrupt,
it means there is a new coming reset.
Fixes: 72e2fb07997c ("net: hns3: clear reset interrupt status in hclge_irq_handle()")
Signed-off-by: Huazhong Tan <redacted>
Reviewed-by: Peng Li <redacted>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 7 +++----
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 1 +
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 428f7c0..dc22b84 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c@@ -3536,11 +3536,10 @@ static bool hclge_reset_err_handle(struct hclge_dev *hdev) dev_info(&hdev->pdev->dev, "Reset pending %lu\n", hdev->reset_pending); return true; - } else if ((hdev->reset_type != HNAE3_IMP_RESET) && - (hclge_read_dev(&hdev->hw, HCLGE_GLOBAL_RESET_REG) & - BIT(HCLGE_IMP_RESET_BIT))) { + } else if (hclge_read_dev(&hdev->hw, HCLGE_MISC_VECTOR_INT_STS) & + HCLGE_RESET_INT_M) { dev_info(&hdev->pdev->dev, - "reset failed because IMP Reset is pending\n"); + "reset failed because new reset interrupt\n"); hclge_clear_reset_cause(hdev); return false; } else if (hdev->reset_fail_cnt < MAX_RESET_FAIL_CNT) {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index a3bc382..437a9ff 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h@@ -164,6 +164,7 @@ enum HLCGE_PORT_TYPE { #define HCLGE_GLOBAL_RESET_BIT 0 #define HCLGE_CORE_RESET_BIT 1 #define HCLGE_IMP_RESET_BIT 2 +#define HCLGE_RESET_INT_M GENMASK(2, 0) #define HCLGE_FUN_RST_ING 0x20C00 #define HCLGE_FUN_RST_ING_B 0
--
2.7.4