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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

8
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@@ -1006,17 +1006,23 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
struct mthca_dev *dev = to_mdev(pd->device);
struct ib_umem_chunk *chunk;
struct mthca_mr *mr;
struct mthca_reg_mr ucmd;
u64 *pages;
int shift, n, len;
int i, j, k;
int err = 0;
int write_mtt_size;
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd))
return ERR_PTR(-EFAULT);
mr = kmalloc(sizeof *mr, GFP_KERNEL);
if (!mr)
return ERR_PTR(-ENOMEM);
mr->umem = ib_umem_get(pd->uobject->context, start, length, acc);
mr->umem = ib_umem_get(pd->uobject->context, start, length, acc,
ucmd.mr_attrs & MTHCA_MR_DMASYNC);
if (IS_ERR(mr->umem)) {
err = PTR_ERR(mr->umem);
goto err;

10
drivers/infiniband/hw/mthca/mthca_user.h
View File

@@ -41,7 +41,7 @@
* Increment this value if any changes that break userspace ABI
* compatibility are made.
*/
#define MTHCA_UVERBS_ABI_VERSION 1
#define MTHCA_UVERBS_ABI_VERSION 2
/*
* Make sure that all structs defined in this file remain laid out so
@@ -61,6 +61,14 @@ struct mthca_alloc_pd_resp {
__u32 reserved;
};
struct mthca_reg_mr {
__u32 mr_attrs;
#define MTHCA_MR_DMASYNC 0x1
/* mark the memory region with a DMA attribute that causes
* in-flight DMA to be flushed when the region is written to */
__u32 reserved;
};
struct mthca_create_cq {
__u32 lkey;
__u32 pdn;