diff options
| author |   Shiraz, Saleem <shiraz.saleem@intel.com> | 2019-02-11 09:24:57 -0600 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-02-11 15:02:33 -0700 |
| commit | 161ebe2498d4108c5e80dc3b47736ecda32cd816 (patch) | |
| tree | e553ef6c506c5085947883cc4f09fd2c1857178e /drivers/infiniband/hw/bnxt_re/qplib_res.c | |
| parent | lib/scatterlist: Provide a DMA page iterator (diff) | |
| download | linux-dev-161ebe2498d4108c5e80dc3b47736ecda32cd816.tar.xz linux-dev-161ebe2498d4108c5e80dc3b47736ecda32cd816.zip | |
RDMA/bnxt_re: 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/bnxt_re/qplib_res.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.c b/drivers/infiniband/hw/bnxt_re/qplib_res.c index c8502c2844a2..d08b9d9948fd 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_res.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_res.c @@ -85,7 +85,7 @@ static void __free_pbl(struct pci_dev *pdev, struct bnxt_qplib_pbl *pbl, static int __alloc_pbl(struct pci_dev *pdev, struct bnxt_qplib_pbl *pbl, struct scatterlist *sghead, u32 pages, u32 pg_size) { - struct scatterlist *sg; + struct sg_dma_page_iter sg_iter; bool is_umem = false; int i; @@ -116,12 +116,13 @@ static int __alloc_pbl(struct pci_dev *pdev, struct bnxt_qplib_pbl *pbl, } else { i = 0; is_umem = true; - for_each_sg(sghead, sg, pages, i) { - pbl->pg_map_arr[i] = sg_dma_address(sg); - pbl->pg_arr[i] = sg_virt(sg); + for_each_sg_dma_page (sghead, &sg_iter, pages, 0) { + pbl->pg_map_arr[i] = sg_page_iter_dma_address(&sg_iter); + pbl->pg_arr[i] = NULL; if (!pbl->pg_arr[i]) goto fail; + i++; pbl->pg_count++; } } |