[dpdk-dev] [PATCH 16/17] net/hns3: fix VF reset after MBX failed
Lijun Ou
oulijun at huawei.com
Wed Feb 3 08:46:21 CET 2021
From: Chengchang Tang <tangchengchang at huawei.com>
Currently, during the VF reset, the VF will send a MBX to inform
PF to reset it and the disable command bit will be set whether
the MBX is successful. Generally, multiple reset attempts are made
after a failure. However, because the command is diabled, all
subsequent reset will all fail.
This patch disable the command only after the MBX message is
successfully.
Fixes: 2790c6464725 ("net/hns3: support device reset")
Cc: stable at dpdk.org
Signed-off-by: Chengchang Tang <tangchengchang at huawei.com>
Signed-off-by: Lijun Ou <oulijun at huawei.com>
---
drivers/net/hns3/hns3_ethdev_vf.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index 44c94e7..c18e00f 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -2404,15 +2404,17 @@ static int
hns3vf_prepare_reset(struct hns3_adapter *hns)
{
struct hns3_hw *hw = &hns->hw;
- int ret = 0;
+ int ret;
if (hw->reset.level == HNS3_VF_FUNC_RESET) {
ret = hns3_send_mbx_msg(hw, HNS3_MBX_RESET, 0, NULL,
0, true, NULL, 0);
+ if (ret)
+ return ret;
}
__atomic_store_n(&hw->reset.disable_cmd, 1, __ATOMIC_RELAXED);
- return ret;
+ return 0;
}
static int
--
2.7.4
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