diff options
| author |   Shiraz, Saleem <shiraz.saleem@intel.com> | 2019-02-11 09:25:00 -0600 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-02-11 15:02:33 -0700 |
| commit | 3856ec55270099494afa0cabba020365a38430a2 (patch) | |
| tree | 69ec1c5542b8e18499ae4bdf43ed4ad9c26c6f55 /drivers/infiniband/hw/hns/hns_roce_qp.c | |
| parent | RDMA/i40iw: Use for_each_sg_dma_page iterator on umem SGL (diff) | |
| download | linux-dev-3856ec55270099494afa0cabba020365a38430a2.tar.xz linux-dev-3856ec55270099494afa0cabba020365a38430a2.zip | |
RDMA/hns: Use for_each_sg_dma_page iterator on umem SGL
Use the for_each_sg_dma_page iterator variant to walk the umem DMA-mapped
SGL and get the page DMA address. This avoids the extra loop to iterate
pages in the SGE when for_each_sg iterator is used.
Additionally, purge umem->page_shift usage in the driver as its only
relevant for ODP MRs. Use system page size and shift instead.
Signed-off-by: Shiraz, Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_qp.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_qp.c b/drivers/infiniband/hw/hns/hns_roce_qp.c index 73066bf38e47..51ca22b9f960 100644 --- a/drivers/infiniband/hw/hns/hns_roce_qp.c +++ b/drivers/infiniband/hw/hns/hns_roce_qp.c @@ -640,19 +640,19 @@ static int hns_roce_create_qp_common(struct hns_roce_dev *hr_dev, } hr_qp->mtt.mtt_type = MTT_TYPE_WQE; + page_shift = PAGE_SHIFT; if (hr_dev->caps.mtt_buf_pg_sz) { npages = (ib_umem_page_count(hr_qp->umem) + (1 << hr_dev->caps.mtt_buf_pg_sz) - 1) / - (1 << hr_dev->caps.mtt_buf_pg_sz); - page_shift = PAGE_SHIFT + hr_dev->caps.mtt_buf_pg_sz; + (1 << hr_dev->caps.mtt_buf_pg_sz); + page_shift += hr_dev->caps.mtt_buf_pg_sz; ret = hns_roce_mtt_init(hr_dev, npages, page_shift, &hr_qp->mtt); } else { ret = hns_roce_mtt_init(hr_dev, - ib_umem_page_count(hr_qp->umem), - hr_qp->umem->page_shift, - &hr_qp->mtt); + ib_umem_page_count(hr_qp->umem), + page_shift, &hr_qp->mtt); } if (ret) { dev_err(dev, "hns_roce_mtt_init error for create qp\n"); |