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From: "Min Hu (Connor)" <humin29@huawei.com>
To: <dev@dpdk.org>
Cc: <ferruh.yigit@intel.com>
Subject: [dpdk-dev] [PATCH v2 7/7] net/hns3: fix configure FEC when concurrent with reset
Date: Sat, 10 Apr 2021 09:11:20 +0800
Message-ID: <1618017080-50053-8-git-send-email-humin29@huawei.com> (raw)
In-Reply-To: <1618017080-50053-1-git-send-email-humin29@huawei.com>

From: Chengchang Tang <tangchengchang@huawei.com>

Currently, after the reset is complete, the PMD restores the FEC according
to the FEC configuration reserved in the driver. If there is a concurrency
between the FEC setup operation and the restore operation after a reset,
the FEC status of the last hardware may be unknown.

This patch adds the step of obtaining the lock when setting the FEC to
avoid concurrency between restore operation and setting operation.

Fixes: 9bf2ea8dbc65 ("net/hns3: support FEC")
Cc: stable@dpdk.org

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
 drivers/net/hns3/hns3_ethdev.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index edace55..c359efc 100644
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -6411,11 +6411,16 @@ hns3_fec_set(struct rte_eth_dev *dev, uint32_t mode)
 		return -EINVAL;
 	}
 
+	rte_spinlock_lock(&hw->lock);
 	ret = hns3_set_fec_hw(hw, mode);
-	if (ret)
+	if (ret) {
+		rte_spinlock_unlock(&hw->lock);
 		return ret;
+	}
 
 	pf->fec_mode = mode;
+	rte_spinlock_unlock(&hw->lock);
+
 	return 0;
 }
 
-- 
2.7.4


  parent reply	other threads:[~2021-04-10  1:11 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09 10:15 [dpdk-dev] [PATCH 0/7] Bugfix for hns3 PMD Min Hu (Connor)
2021-04-09 10:15 ` [dpdk-dev] [PATCH 1/7] net/hns3: remove ariables of selecting Rx/Tx function Min Hu (Connor)
2021-04-09 10:16 ` [dpdk-dev] [PATCH 2/7] net/hns3: fix missing rollback in PF init Min Hu (Connor)
2021-04-09 10:16 ` [dpdk-dev] [PATCH 3/7] net/hns3: fix FLR failure when RAS concurrently with FLR Min Hu (Connor)
2021-04-09 10:16 ` [dpdk-dev] [PATCH 4/7] net/hns3: fix some packet type calc error Min Hu (Connor)
2021-04-09 10:16 ` [dpdk-dev] [PATCH 5/7] net/hns3: fix incorrect timing in resetting queues Min Hu (Connor)
2021-04-09 10:16 ` [dpdk-dev] [PATCH 6/7] net/hns3: fix queue state when concurrent with reset Min Hu (Connor)
2021-04-09 10:16 ` [dpdk-dev] [PATCH 7/7] net/hns3: fix configure FEC " Min Hu (Connor)
2021-04-10  1:11 ` [dpdk-dev] [PATCH v2 0/7] Bugfix for hns3 PMD Min Hu (Connor)
2021-04-10  1:11   ` [dpdk-dev] [PATCH v2 1/7] net/hns3: remove variables of selecting Rx/Tx function Min Hu (Connor)
2021-04-10  1:11   ` [dpdk-dev] [PATCH v2 2/7] net/hns3: fix missing rollback in PF init Min Hu (Connor)
2021-04-10  1:11   ` [dpdk-dev] [PATCH v2 3/7] net/hns3: fix FLR failure when RAS concurrent with FLR Min Hu (Connor)
2021-04-10  1:11   ` [dpdk-dev] [PATCH v2 4/7] net/hns3: fix some packet type calc error Min Hu (Connor)
2021-04-10  1:11   ` [dpdk-dev] [PATCH v2 5/7] net/hns3: fix incorrect timing in resetting queues Min Hu (Connor)
2021-04-10  1:11   ` [dpdk-dev] [PATCH v2 6/7] net/hns3: fix queue state when concurrent with reset Min Hu (Connor)
2021-04-10  1:11   ` Min Hu (Connor) [this message]
2021-04-13  9:28   ` [dpdk-dev] [PATCH v2 0/7] Bugfix for hns3 PMD Ferruh Yigit

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