This patch supports the query of the link flow control parameter
on a port.
The command format is as follows:
show port <port_id> flow_ctrl
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>