In mhop 0 mode, 64*bt_num queues can be supported.
In mhop 1 mode, 32K*bt_num queues can be supported.
Config srqc_hop_num to 1 to support 1M SRQ queues.
Signed-off-by: Nchenglang <chenglang@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>