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Merge tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

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Pull rdma DMA mapping updates from Doug Ledford:
 "Drop IB DMA mapping code and use core DMA code instead.

  Bart Van Assche noted that the ib DMA mapping code was significantly
  similar enough to the core DMA mapping code that with a few changes it
  was possible to remove the IB DMA mapping code entirely and switch the
  RDMA stack to use the core DMA mapping code.

  This resulted in a nice set of cleanups, but touched the entire tree
  and has been kept separate for that reason."

* tag 'for-next-dma_ops' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (37 commits)
  IB/rxe, IB/rdmavt: Use dma_virt_ops instead of duplicating it
  IB/core: Remove ib_device.dma_device
  nvme-rdma: Switch from dma_device to dev.parent
  RDS: net: Switch from dma_device to dev.parent
  IB/srpt: Modify a debug statement
  IB/srp: Switch from dma_device to dev.parent
  IB/iser: Switch from dma_device to dev.parent
  IB/IPoIB: Switch from dma_device to dev.parent
  IB/rxe: Switch from dma_device to dev.parent
  IB/vmw_pvrdma: Switch from dma_device to dev.parent
  IB/usnic: Switch from dma_device to dev.parent
  IB/qib: Switch from dma_device to dev.parent
  IB/qedr: Switch from dma_device to dev.parent
  IB/ocrdma: Switch from dma_device to dev.parent
  IB/nes: Remove a superfluous assignment statement
  IB/mthca: Switch from dma_device to dev.parent
  IB/mlx5: Switch from dma_device to dev.parent
  IB/mlx4: Switch from dma_device to dev.parent
  IB/i40iw: Remove a superfluous assignment statement
  IB/hns: Switch from dma_device to dev.parent
  ...
This commit is contained in:
Linus Torvalds
2017-02-25 13:45:43 -08:00
parent edccb59429 0bbb3b7496
commit ac1820fb28
174 changed files with 435 additions and 1296 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/ia64/kernel/dma-mapping.c
View File

@@ -4,7 +4,7 @@
/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;
struct dma_map_ops *dma_ops;
const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);
#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
@@ -17,7 +17,7 @@ static int __init dma_init(void)
}
fs_initcall(dma_init);
struct dma_map_ops *dma_get_ops(struct device *dev)
const struct dma_map_ops *dma_get_ops(struct device *dev)
{
return dma_ops;
}

10
arch/ia64/kernel/pci-dma.c
View File

@@ -90,11 +90,11 @@ void __init pci_iommu_alloc(void)
{
dma_ops = &intel_dma_ops;
dma_ops->sync_single_for_cpu = machvec_dma_sync_single;
dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg;
dma_ops->sync_single_for_device = machvec_dma_sync_single;
dma_ops->sync_sg_for_device = machvec_dma_sync_sg;
dma_ops->dma_supported = iommu_dma_supported;
intel_dma_ops.sync_single_for_cpu = machvec_dma_sync_single;
intel_dma_ops.sync_sg_for_cpu = machvec_dma_sync_sg;
intel_dma_ops.sync_single_for_device = machvec_dma_sync_single;
intel_dma_ops.sync_sg_for_device = machvec_dma_sync_sg;
intel_dma_ops.dma_supported = iommu_dma_supported;
/*
* The order of these functions is important for

2
arch/ia64/kernel/pci-swiotlb.c
View File

@@ -30,7 +30,7 @@ static void ia64_swiotlb_free_coherent(struct device *dev, size_t size,
swiotlb_free_coherent(dev, size, vaddr, dma_addr);
}
struct dma_map_ops swiotlb_dma_ops = {
const struct dma_map_ops swiotlb_dma_ops = {
.alloc = ia64_swiotlb_alloc_coherent,
.free = ia64_swiotlb_free_coherent,
.map_page = swiotlb_map_page,