Re: [dpdk-dev] [PATCH v2] net/hns3: fix parse link fails code fail

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

在 2021/4/27 19:11, Ferruh Yigit 写道:
> On 4/26/2021 2:42 PM, Min Hu (Connor) wrote:
>> From: Chengwen Feng <fengchengwen@huawei.com>
>>
>> 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@dpdk.org
>>
>> Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
>> Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
>> ---
>> v2:
>> * kept original API interface.
>> ---
>>   drivers/net/hns3/hns3_mbx.c | 10 +++++++++-
>>   1 file changed, 9 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/hns3/hns3_mbx.c b/drivers/net/hns3/hns3_mbx.c
>> index eb202dd..755298f 100644
>> --- a/drivers/net/hns3/hns3_mbx.c
>> +++ b/drivers/net/hns3/hns3_mbx.c
>> @@ -346,12 +346,20 @@ hns3_link_fail_parse(struct hns3_hw *hw, uint8_t link_fail_code)
>>   }
>>   
>>   static void
>> +
>>   hns3pf_handle_link_change_event(struct hns3_hw *hw,
>> -			      struct hns3_mbx_pf_to_vf_cmd *req)
>> +				struct hns3_mbx_pf_to_vf_cmd *cmd)
>>   {
>>   #define LINK_STATUS_OFFSET     1
>>   #define LINK_FAIL_CODE_OFFSET  2
>>   
>> +	/*
>> +	 * This message is reported by the firmware and is reported in
>> +	 * 'struct hns3_mbx_vf_to_pf_cmd' format. Therefore, we should cast
>> +	 * the cmd to 'struct hns3_mbx_vf_to_pf_cmd' first.
>> +	 */
>> +	struct hns3_mbx_vf_to_pf_cmd *req = (struct hns3_mbx_vf_to_pf_cmd *)cmd;
>> +
> 
> Hi Connor,
> 
> I guess I am missing something obvious, why not get the parameter as 'struct
> hns3_mbx_vf_to_pf_cmd' at first place?
> .
Hi, fixed in v3, thanks.
>