linux-kernel - [PATCH net-next 8/8] net: hns3: log and clear hardware error after reset complete

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Message-ID: <1571472236-17401-9-git-send-email-tanhuazhong@huawei.com>
Date:   Sat, 19 Oct 2019 16:03:56 +0800
From:   Huazhong Tan <tanhuazhong@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
        <linuxarm@...wei.com>, <jakub.kicinski@...ronome.com>,
        Jian Shen <shenjian15@...wei.com>,
        "Huazhong Tan" <tanhuazhong@...wei.com>
Subject: [PATCH net-next 8/8] net: hns3: log and clear hardware error after reset complete

From: Jian Shen <shenjian15@...wei.com>

When device is resetting, the CMDQ service may be stopped until
reset completed. If a new RAS error occurs at this moment, it
will no be able to clear the RAS source. This patch fixes it
by clear the RAS source after reset complete.

Signed-off-by: Jian Shen <shenjian15@...wei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index ffdb8ce..95c3897 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -9781,6 +9781,9 @@ static int hclge_reset_ae_dev(struct hnae3_ae_dev *ae_dev)
 		return ret;
 	}
 
+	/* Log and clear the hw errors those already occurred */
+	hclge_handle_all_hns_hw_errors(ae_dev);
+
 	/* Re-enable the hw error interrupts because
 	 * the interrupts get disabled on global reset.
 	 */
-- 
2.7.4