[dpdk-dev] [PATCH 3/7] net/hns3: fix FLR failure when RAS concurrently with FLR

["Min Hu (Connor)" <humin29@huawei.com>]

From: Hongbo Zheng <zhenghongbo3@huawei.com>

Currently, if RAS interrupt and FLR occurred at the same time, FLR will
be detected and corresponding schedule state will be set during RAS
interrupt processing. However, the schedule state value will be
overridden in subsequent RAS processing, resulting in FLR processing
failure. This patch solves this problem.

Fixes: 2790c6464725 ("net/hns3: support device reset")
Cc: stable@dpdk.org

Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
 drivers/net/hns3/hns3_intr.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/hns3/hns3_intr.c b/drivers/net/hns3/hns3_intr.c
index 39a16a0..f3217c6 100644
--- a/drivers/net/hns3/hns3_intr.c
+++ b/drivers/net/hns3/hns3_intr.c
@@ -2133,10 +2133,11 @@ hns3_schedule_reset(struct hns3_adapter *hns)
 			SCHEDULE_REQUESTED)
 		return;
 	if (__atomic_load_n(&hw->reset.schedule, __ATOMIC_RELAXED) ==
-			SCHEDULE_DEFERRED)
+			    SCHEDULE_DEFERRED)
 		rte_eal_alarm_cancel(hw->reset.ops->reset_service, hns);
-	__atomic_store_n(&hw->reset.schedule, SCHEDULE_REQUESTED,
-			 __ATOMIC_RELAXED);
+	else
+		__atomic_store_n(&hw->reset.schedule, SCHEDULE_REQUESTED,
+				 __ATOMIC_RELAXED);
 
 	rte_eal_alarm_set(SWITCH_CONTEXT_US, hw->reset.ops->reset_service, hns);
 }
-- 
2.7.4