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IB: Modify ib_create_mr API

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Use ib_alloc_mr with specific parameters.
Change the existing callers.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Sagi Grimberg
2015-07-30 10:32:35 +03:00
committed by Doug Ledford
parent 8b91ffc1cf
commit 9bee178b4f
7 changed files with 58 additions and 46 deletions
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31
drivers/infiniband/core/verbs.c
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@@ -1235,15 +1235,32 @@ int ib_dereg_mr(struct ib_mr *mr)
}
EXPORT_SYMBOL(ib_dereg_mr);
struct ib_mr *ib_create_mr(struct ib_pd *pd,
struct ib_mr_init_attr *mr_init_attr)
/**
* ib_alloc_mr() - Allocates a memory region
* @pd: protection domain associated with the region
* @mr_type: memory region type
* @max_num_sg: maximum sg entries available for registration.
*
* Notes:
* Memory registeration page/sg lists must not exceed max_num_sg.
* For mr_type IB_MR_TYPE_MEM_REG, the total length cannot exceed
* max_num_sg * used_page_size.
*
*/
struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
enum ib_mr_type mr_type,
u32 max_num_sg)
{
struct ib_mr *mr;
if (!pd->device->create_mr)
return ERR_PTR(-ENOSYS);
mr = pd->device->create_mr(pd, mr_init_attr);
if (pd->device->alloc_mr) {
mr = pd->device->alloc_mr(pd, mr_type, max_num_sg);
} else {
if (mr_type != IB_MR_TYPE_MEM_REG ||
!pd->device->alloc_fast_reg_mr)
return ERR_PTR(-ENOSYS);
mr = pd->device->alloc_fast_reg_mr(pd, max_num_sg);
}
if (!IS_ERR(mr)) {
mr->device = pd->device;
@@ -1255,7 +1272,7 @@ struct ib_mr *ib_create_mr(struct ib_pd *pd,
return mr;
}
EXPORT_SYMBOL(ib_create_mr);
EXPORT_SYMBOL(ib_alloc_mr);
struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len)
{