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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 13:42:26 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 13:42:26 -0800
commit009bd55dfcc857d8b00a5bbb17a8db060317af6f (patch)
tree3a623fc690ea03bd76630c5bcc003324136ae0f6 /drivers/infiniband/core/umem.c
parent60f7c503d971a731ee3c4f884a9f2e80d476730d (diff)
parente246b7c035d74abfb3507fa10082d0c42cc016c3 (diff)
downloadlinux-rt-009bd55dfcc857d8b00a5bbb17a8db060317af6f.tar.gz
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe: "A smaller set of patches, nothing stands out as being particularly major this cycle. The biggest item would be the new HIP09 HW support from HNS, otherwise it was pretty quiet for new work here: - Driver bug fixes and updates: bnxt_re, cxgb4, rxe, hns, i40iw, cxgb4, mlx4 and mlx5 - Bug fixes and polishing for the new rts ULP - Cleanup of uverbs checking for allowed driver operations - Use sysfs_emit all over the place - Lots of bug fixes and clarity improvements for hns - hip09 support for hns - NDR and 50/100Gb signaling rates - Remove dma_virt_ops and go back to using the IB DMA wrappers - mlx5 optimizations for contiguous DMA regions" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (147 commits) RDMA/cma: Don't overwrite sgid_attr after device is released RDMA/mlx5: Fix MR cache memory leak RDMA/rxe: Use acquire/release for memory ordering RDMA/hns: Simplify AEQE process for different types of queue RDMA/hns: Fix inaccurate prints RDMA/hns: Fix incorrect symbol types RDMA/hns: Clear redundant variable initialization RDMA/hns: Fix coding style issues RDMA/hns: Remove unnecessary access right set during INIT2INIT RDMA/hns: WARN_ON if get a reserved sl from users RDMA/hns: Avoid filling sl in high 3 bits of vlan_id RDMA/hns: Do shift on traffic class when using RoCEv2 RDMA/hns: Normalization the judgment of some features RDMA/hns: Limit the length of data copied between kernel and userspace RDMA/mlx4: Remove bogus dev_base_lock usage RDMA/uverbs: Fix incorrect variable type RDMA/core: Do not indicate device ready when device enablement fails RDMA/core: Clean up cq pool mechanism RDMA/core: Update kernel documentation for ib_create_named_qp() MAINTAINERS: SOFT-ROCE: Change Zhu Yanjun's email address ...
Diffstat (limited to 'drivers/infiniband/core/umem.c')
-rw-r--r--drivers/infiniband/core/umem.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index e9fecbdf391b..7ca4112e3e8f 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -84,6 +84,15 @@ unsigned long ib_umem_find_best_pgsz(struct ib_umem *umem,
dma_addr_t mask;
int i;
+ if (umem->is_odp) {
+ unsigned int page_size = BIT(to_ib_umem_odp(umem)->page_shift);
+
+ /* ODP must always be self consistent. */
+ if (!(pgsz_bitmap & page_size))
+ return 0;
+ return page_size;
+ }
+
/* rdma_for_each_block() has a bug if the page size is smaller than the
* page size used to build the umem. For now prevent smaller page sizes
* from being returned.
@@ -220,10 +229,10 @@ struct ib_umem *ib_umem_get(struct ib_device *device, unsigned long addr,
cur_base += ret * PAGE_SIZE;
npages -= ret;
- sg = __sg_alloc_table_from_pages(
- &umem->sg_head, page_list, ret, 0, ret << PAGE_SHIFT,
- dma_get_max_seg_size(device->dma_device), sg, npages,
- GFP_KERNEL);
+ sg = __sg_alloc_table_from_pages(&umem->sg_head, page_list, ret,
+ 0, ret << PAGE_SHIFT,
+ ib_dma_max_seg_size(device), sg, npages,
+ GFP_KERNEL);
umem->sg_nents = umem->sg_head.nents;
if (IS_ERR(sg)) {
unpin_user_pages_dirty_lock(page_list, ret, 0);