[dpdk-stable] [PATCH 19.11.9 3/3] net/hns3: fix handling link update
Min Hu (Connor)
humin29 at huawei.com
Sat May 22 08:47:24 CEST 2021
From: Chengwen Feng <fengchengwen at huawei.com>
[ upstream commit fae9b062b01397339c02c88ebee11dd5f7af3e3c ]
The link fails code should be parsed using the structure
hns3_mbx_vf_to_pf_cmd, else it will parse fail.
Fixes: 109e4dd1bd7a ("net/hns3: get link state change through mailbox")
Cc: stable at dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
Signed-off-by: Min Hu (Connor) <humin29 at huawei.com>
---
drivers/net/hns3/hns3_mbx.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/net/hns3/hns3_mbx.c b/drivers/net/hns3/hns3_mbx.c
index 896ad25..d44a4d1 100644
--- a/drivers/net/hns3/hns3_mbx.c
+++ b/drivers/net/hns3/hns3_mbx.c
@@ -315,8 +315,8 @@ hns3_link_fail_parse(struct hns3_hw *hw, uint8_t link_fail_code)
}
static void
-hns3_handle_link_change_event(struct hns3_hw *hw,
- struct hns3_mbx_pf_to_vf_cmd *req)
+hns3pf_handle_link_change_event(struct hns3_hw *hw,
+ struct hns3_mbx_vf_to_pf_cmd *req)
{
#define LINK_STATUS_OFFSET 1
#define LINK_FAIL_CODE_OFFSET 2
@@ -455,7 +455,14 @@ hns3_dev_handle_mbx_msg(struct hns3_hw *hw)
hns3_mbx_handler(hw);
break;
case HNS3_MBX_PUSH_LINK_STATUS:
- hns3_handle_link_change_event(hw, req);
+ /*
+ * This message is reported by the firmware and is
+ * reported in 'struct hns3_mbx_vf_to_pf_cmd' format.
+ * Therefore, we should cast the req variable to
+ * 'struct hns3_mbx_vf_to_pf_cmd' and then process it.
+ */
+ hns3pf_handle_link_change_event(hw,
+ (struct hns3_mbx_vf_to_pf_cmd *)req);
break;
default:
hns3_err(hw, "received unsupported(%d) mbx msg",
--
2.7.4
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