RDMA/hns: Fix the problem of sge nums

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5USIG



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Currently, the driver only uses max_send_sge to initialize sge num
when creating_qp. So, in the sq inline scenario, the driver may not
has enough sge to send data. For example, if max_send_sge is 16 and
max_inline_data is 1024, the driver needs 1024/16=64 sge to send data.
Therefore, the calculation method of sge num is modified to take the
maximum value of max_send_sge and max_inline_data/16 to solve this
problem.

Fixes:05201e01("RDMA/hns: Refactor process of setting extended sge")
Fixes:30b70788("RDMA/hns: Support inline data in extented sge space for RC")

Signed-off-by: Luoyouming <luoyouming@huawei.com>
Reviewed-by: Yangyang Li <liyangyang20@huawei.com>
Reviewed-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>