dpdk/0042-net-hns3-fix-VF-reset-on-mailbox-failure.patch
speech_white 3a8995b1ad Update DPDK baseline version
Update DPDK version from 19.11 to 20.11 and also support
hns3 PMD for Kunpeng 920 and Kunpeng 930.

Signed-off-by: speech_white <humin29@huawei.com>
2021-06-28 00:52:34 +00:00

51 lines
1.5 KiB
Diff

From 6ceabcab7a4b103f854f338486c1d9fd08349e90 Mon Sep 17 00:00:00 2001
From: Chengchang Tang <tangchengchang@huawei.com>
Date: Wed, 3 Feb 2021 20:23:56 +0800
Subject: [PATCH 042/189] net/hns3: fix VF reset on mailbox failure
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 disabled, 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@dpdk.org
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Lijun Ou <oulijun@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 42cee37..fc9f3c8 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