RDMA/hns: Limit the size of extend sge of sq
The hip08 split two hardware version. The version id are 0x20 and 0x21 according to the PCI revison. The max size of extend sge of sq is limited to 2M for 0x20 version and 8M for 0x21 version. It may be exceeded to 2M according to the algorithm that compute the product of wqe count and extend sge number of every wqe. But the product always less than 8M. Signed-off-by: NLijun Ou <oulijun@huawei.com> Signed-off-by: NJason Gunthorpe <jgg@mellanox.com>
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