[PATCH 20.11] net/hns3: fix traffic management thread safety

[fengchengwen]

Hi Luca,

On 2023/11/16 23:27, Luca Boccassi wrote:
> On Thu, 16 Nov 2023 at 12:37, Chengwen Feng <fengchengwen at huawei.com> wrote:
>>
>> [ upstream commit 69901040975bff8a38edfc47aee727cadc87d356 ]
>>
>> The driver-related TM (traffic management) info is implemented through
>> the linked list. The following threads are involved in the read and
>> write of the TM info:
>>
>> 1. main thread: invokes the rte_tm_xxx() API family to modify or read.
>> 2. interrupt thread: will read TM info in reset recover process.
>>
>> Currently, thread safety protection of TM info is implemented only in
>> the following operations:
>> 1. some of the rte_tm_xxx() API's implementation.
>> 2. reset recover process.
>>
>> Thread safety risks may exist in other scenarios, so fix by make sure
>> all the rte_tm_xxx() API's implementations protected by hw.lock.
>>
>> Fixes: c09c7847d892 ("net/hns3: support traffic management")
>>
>> Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
>> Signed-off-by: Dongdong Liu <liudongdong3 at huawei.com>
>> ---
>>  drivers/net/hns3/hns3_tm.c | 173 ++++++++++++++++++++++++++++++++-----
>>  1 file changed, 150 insertions(+), 23 deletions(-)
>>
> 
> This patch doesn't apply on 20.11, did you mean to target it at 21.11 or 22.11?

Sorry for this, it was target for 21.11, I wrote the wrong prefix.

Thanks
Chengwen

> 
> .
>