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IB: expand ib_umem_get() prototype

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Add a new parameter, dmasync, to the ib_umem_get() prototype.  Use dmasync = 1
when mapping user-allocated CQs with ib_umem_get().

Signed-off-by: Arthur Kepner <akepner@sgi.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: David Miller <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Arthur Kepner
2008-04-29 01:00:34 -07:00
committed by Linus Torvalds
parent 309df0c503
commit cb9fbc5c37
15 changed files with 75 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
include/rdma/ib_umem.h
View File

@@ -62,7 +62,7 @@ struct ib_umem_chunk {
#ifdef CONFIG_INFINIBAND_USER_MEM
struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
size_t size, int access);
size_t size, int access, int dmasync);
void ib_umem_release(struct ib_umem *umem);
int ib_umem_page_count(struct ib_umem *umem);
@@ -72,7 +72,7 @@ int ib_umem_page_count(struct ib_umem *umem);
static inline struct ib_umem *ib_umem_get(struct ib_ucontext *context,
unsigned long addr, size_t size,
int access) {
int access, int dmasync) {
return ERR_PTR(-EINVAL);
}
static inline void ib_umem_release(struct ib_umem *umem) { }

33
include/rdma/ib_verbs.h
View File

@@ -1542,6 +1542,24 @@ static inline void ib_dma_unmap_single(struct ib_device *dev,
dma_unmap_single(dev->dma_device, addr, size, direction);
}
static inline u64 ib_dma_map_single_attrs(struct ib_device *dev,
void *cpu_addr, size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
return dma_map_single_attrs(dev->dma_device, cpu_addr, size,
direction, attrs);
}
static inline void ib_dma_unmap_single_attrs(struct ib_device *dev,
u64 addr, size_t size,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
return dma_unmap_single_attrs(dev->dma_device, addr, size,
direction, attrs);
}
/**
* ib_dma_map_page - Map a physical page to DMA address
* @dev: The device for which the dma_addr is to be created
@@ -1611,6 +1629,21 @@ static inline void ib_dma_unmap_sg(struct ib_device *dev,
dma_unmap_sg(dev->dma_device, sg, nents, direction);
}
static inline int ib_dma_map_sg_attrs(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, attrs);
}
static inline void ib_dma_unmap_sg_attrs(struct ib_device *dev,
struct scatterlist *sg, int nents,
enum dma_data_direction direction,
struct dma_attrs *attrs)
{
dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, attrs);
}
/**
* ib_sg_dma_address - Return the DMA address from a scatter/gather entry
* @dev: The device for which the DMA addresses were created