diff options
| author | Shiraz, Saleem | 2019-02-11 16:25:00 +0100 |
|---|---|---|
| committer | Jason Gunthorpe | 2019-02-11 23:02:33 +0100 |
| commit | 3856ec55270099494afa0cabba020365a38430a2 (patch) | |
| tree | 69ec1c5542b8e18499ae4bdf43ed4ad9c26c6f55 /drivers/infiniband/hw/hns/hns_roce_hw_v1.c | |
| parent | RDMA/i40iw: Use for_each_sg_dma_page iterator on umem SGL (diff) | |
| download | kernel-qcow2-linux-3856ec55270099494afa0cabba020365a38430a2.tar.gz kernel-qcow2-linux-3856ec55270099494afa0cabba020365a38430a2.tar.xz kernel-qcow2-linux-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 'drivers/infiniband/hw/hns/hns_roce_hw_v1.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_hw_v1.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c index a18b88c95995..c8c90072badd 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v1.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v1.c @@ -1871,9 +1871,8 @@ static int hns_roce_v1_write_mtpt(void *mb_buf, struct hns_roce_mr *mr, unsigned long mtpt_idx) { struct hns_roce_v1_mpt_entry *mpt_entry; - struct scatterlist *sg; + struct sg_dma_page_iter sg_iter; u64 *pages; - int entry; int i; /* MPT filled into mailbox buf */ @@ -1928,8 +1927,8 @@ static int hns_roce_v1_write_mtpt(void *mb_buf, struct hns_roce_mr *mr, return -ENOMEM; i = 0; - for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) { - pages[i] = ((u64)sg_dma_address(sg)) >> 12; + for_each_sg_dma_page(mr->umem->sg_head.sgl, &sg_iter, mr->umem->nmap, 0) { + pages[i] = ((u64)sg_page_iter_dma_address(&sg_iter)) >> 12; /* Directly record to MTPT table firstly 7 entry */ if (i >= HNS_ROCE_MAX_INNER_MTPT_NUM) |