[PATCH V3] app/testpmd: update bond port configurations when add slave

[Andrew Rybchenko]

On 11/1/22 06:41, humin (Q) wrote:
> Reviewed-by: Min Hu (Connor) <humin29huawei.com>
> 
> 在 2022/10/29 11:50, Huisong Li 写道:
>> Some capabilities (like, rx_offload_capa and tx_offload_capa) of bonding
>> device in dev_info is zero when no slave is added. And its capability 
>> will
>> be updated when add a new slave device.
>>
>> The capability to update dynamically may introduce some problems if not
>> handled properly. For example, the reconfig() is called to initialize
>> bonding port configurations when create a bonding device. The global
>> tx_mode is assigned to dev_conf.txmode. The DEV_TX_OFFLOAD_MBUF_FAST_FREE
>> which is the default value of global tx_mode.offloads in testpmd is 
>> removed
>> from bonding device configuration because of zero rx_offload_capa.
>> As a result, this offload isn't set to bonding device.
>>
>> Generally, port configurations of bonding device must be within the
>> intersection of the capability of all slave devices. If use original port
>> configurations, the removed capabilities because of adding a new slave 
>> may
>> cause failure when re-initialize bonding device.
>>
>> So port configurations of bonding device also need to be updated 
>> because of
>> the added and removed capabilities. In addition, this also helps to 
>> ensure
>> consistency between testpmd and bonding device.
>>
>> Signed-off-by: Huisong Li <lihuisong at huawei.com>
>> ---
>>   - v3: fix code comment
>>   - v2: fix a spelling error in commit log

It fails to apply on dpdk-next-net/main. Could you rebase it,
please, and send v4. Thanks.