RDMA/hns: use page shift of umem instead of constant page shift

driver inclusion
category: bugfix
bugzilla: NA
CVE: NA

User application would set page shift of umem, and expect to use
this value during create mr.

Feature or Bugfix: Bugfix
Signed-off-by: NWeihang Li <liweihang@hisilicon.com>
Reviewed-by: Nliuyixian <liuyixian@huawei.com>
Reviewed-by: NYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

@@ -2440,7 +2440,7 @@ static int set_mtpt_pbl(struct hns_roce_v2_mpt_entry *mpt_entry,
 
 	i = 0;
 	for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) {
-		len = sg_dma_len(sg) >> PAGE_SHIFT;
+		len = sg_dma_len(sg) >> mr->umem->page_shift;
 		for (j = 0; j < len; ++j) {
 			page_addr = sg_dma_address(sg) +
 				(j << mr->umem->page_shift);

drivers/infiniband/hw/hns/hns_roce_mr.c

@@ -1128,7 +1128,7 @@ int hns_roce_ib_umem_write_mr(struct hns_roce_dev *hr_dev,
 
 	pbl_bt_sz = 1 << (hr_dev->caps.pbl_ba_pg_sz + PAGE_SHIFT);
 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
-		len = sg_dma_len(sg) >> PAGE_SHIFT;
+		len = sg_dma_len(sg) >> umem->page_shift;
 		for (k = 0; k < len; ++k) {
 			page_addr = sg_dma_address(sg) +
 				    (k << umem->page_shift);