Re: [PATCH v7 00/17] Provide a new two step DMA mapping API
From: Leon Romanovsky <leon@kernel.org>
Date: 2025-02-20 12:48:31
Also in:
kvm, linux-doc, linux-iommu, linux-mm, linux-nvme, linux-pci, linux-rdma, lkml
On Wed, Feb 05, 2025 at 04:40:20PM +0200, Leon Romanovsky wrote:
From: Leon Romanovsky <leonro@nvidia.com> Changelog: v7: * Rebased to v6.14-rc1
<...>
Christoph Hellwig (6):
PCI/P2PDMA: Refactor the p2pdma mapping helpers
dma-mapping: move the PCI P2PDMA mapping helpers to pci-p2pdma.h
iommu: generalize the batched sync after map interface
iommu/dma: Factor out a iommu_dma_map_swiotlb helper
dma-mapping: add a dma_need_unmap helper
docs: core-api: document the IOVA-based API
Leon Romanovsky (11):
iommu: add kernel-doc for iommu_unmap and iommu_unmap_fast
dma-mapping: Provide an interface to allow allocate IOVA
dma-mapping: Implement link/unlink ranges API
mm/hmm: let users to tag specific PFN with DMA mapped bit
mm/hmm: provide generic DMA managing logic
RDMA/umem: Store ODP access mask information in PFN
RDMA/core: Convert UMEM ODP DMA mapping to caching IOVA and page
linkage
RDMA/umem: Separate implicit ODP initialization from explicit ODP
vfio/mlx5: Explicitly use number of pages instead of allocated length
vfio/mlx5: Rewrite create mkey flow to allow better code reuse
vfio/mlx5: Enable the DMA link API
Documentation/core-api/dma-api.rst | 70 ++++
drivers/infiniband/core/umem_odp.c | 250 +++++---------
drivers/infiniband/hw/mlx5/mlx5_ib.h | 12 +-
drivers/infiniband/hw/mlx5/odp.c | 65 ++--
drivers/infiniband/hw/mlx5/umr.c | 12 +-
drivers/iommu/dma-iommu.c | 468 +++++++++++++++++++++++----
drivers/iommu/iommu.c | 84 ++---
drivers/pci/p2pdma.c | 38 +--
drivers/vfio/pci/mlx5/cmd.c | 375 +++++++++++----------
drivers/vfio/pci/mlx5/cmd.h | 35 +-
drivers/vfio/pci/mlx5/main.c | 87 +++--
include/linux/dma-map-ops.h | 54 ----
include/linux/dma-mapping.h | 85 +++++
include/linux/hmm-dma.h | 33 ++
include/linux/hmm.h | 21 ++
include/linux/iommu.h | 4 +
include/linux/pci-p2pdma.h | 84 +++++
include/rdma/ib_umem_odp.h | 25 +-
kernel/dma/direct.c | 44 +--
kernel/dma/mapping.c | 18 ++
mm/hmm.c | 264 +++++++++++++--
21 files changed, 1435 insertions(+), 693 deletions(-)
create mode 100644 include/linux/hmm-dma.hKind reminder. Thanks
-- 2.48.1