diff options
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 8197ce7a64e5..f96dd456db3b 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -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) { |
