linux-kernel - [PATCH for-rc 1/7] RDMA/hns: Fix printing level of asynchronous events

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Date:   Tue, 17 Oct 2023 20:52:33 +0800
From:   Junxian Huang <huangjunxian6@...ilicon.com>
To:     <jgg@...pe.ca>, <leon@...nel.org>
CC:     <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
        <linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-rc 1/7] RDMA/hns: Fix printing level of asynchronous events

From: Chengchang Tang <tangchengchang@...wei.com>

The current driver will print all asynchronous events. Some of the
print levels are set improperly, e.g. SRQ limit reach and SRQ last
wqe reach, which may also occur during normal operation of the software.
Currently, the information of these event is printed as a warning,
which causes a large amount of printing even during normal use of the
application. As a result, the service performance deteriorates.

This patch fixes the printing storms by modifying the print level.

Fixes: b00a92c8f2ca ("RDMA/hns: Move all prints out of irq handle")
Signed-off-by: Chengchang Tang <tangchengchang@...wei.com>
Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index d82daff2d9bd..2b8f6489ab3d 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5804,7 +5804,7 @@ static void hns_roce_irq_work_handle(struct work_struct *work)
 	case HNS_ROCE_EVENT_TYPE_COMM_EST:
 		break;
 	case HNS_ROCE_EVENT_TYPE_SQ_DRAINED:
-		ibdev_warn(ibdev, "send queue drained.\n");
+		ibdev_dbg(ibdev, "send queue drained.\n");
 		break;
 	case HNS_ROCE_EVENT_TYPE_WQ_CATAS_ERROR:
 		ibdev_err(ibdev, "local work queue 0x%x catast error, sub_event type is: %d\n",
@@ -5819,10 +5819,10 @@ static void hns_roce_irq_work_handle(struct work_struct *work)
 			  irq_work->queue_num, irq_work->sub_type);
 		break;
 	case HNS_ROCE_EVENT_TYPE_SRQ_LIMIT_REACH:
-		ibdev_warn(ibdev, "SRQ limit reach.\n");
+		ibdev_dbg(ibdev, "SRQ limit reach.\n");
 		break;
 	case HNS_ROCE_EVENT_TYPE_SRQ_LAST_WQE_REACH:
-		ibdev_warn(ibdev, "SRQ last wqe reach.\n");
+		ibdev_dbg(ibdev, "SRQ last wqe reach.\n");
 		break;
 	case HNS_ROCE_EVENT_TYPE_SRQ_CATAS_ERROR:
 		ibdev_err(ibdev, "SRQ catas error.\n");
-- 
2.30.0