RDMA/hns: Use ib_umem_num_dma_blocks() instead of opencoding

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mtr_umem_page_count() does the same thing, replace it with the core code.

Also, ib_umem_find_best_pgsz() should always be called to check that the
umem meets the page_size requirement. If there is a limited set of
page_sizes that work it the pgsz_bitmap should be set to that set. 0 is a
failure and the umem cannot be used.

Lightly tidy the control flow to implement this flow properly.

Link: https://lore.kernel.org/r/12-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com
Acked-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Jason Gunthorpe 2020-09-04 19:41:53 -03:00

parent 84e71b4d9b

commit cf9ce3c8ab

1 changed files with 19 additions and 30 deletions

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49

drivers/infiniband/hw/hns/hns_roce_mr.c

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