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IB/core: Add passing an offset into the SG to ib_map_mr_sg

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Christoph Hellwig
2016-05-03 18:01:04 +02:00
committed by Doug Ledford
parent 0691a286d5
commit ff2ba99365
19 changed files with 66 additions and 76 deletions
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23
include/rdma/ib_verbs.h
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@@ -1827,7 +1827,8 @@ struct ib_device {
u32 max_num_sg);
int (*map_mr_sg)(struct ib_mr *mr,
struct scatterlist *sg,
int sg_nents);
int sg_nents,
unsigned sg_offset);
struct ib_mw * (*alloc_mw)(struct ib_pd *pd,
enum ib_mw_type type,
struct ib_udata *udata);
@@ -3111,29 +3112,23 @@ struct net_device *ib_get_net_dev_by_params(struct ib_device *dev, u8 port,
u16 pkey, const union ib_gid *gid,
const struct sockaddr *addr);
int ib_map_mr_sg(struct ib_mr *mr,
struct scatterlist *sg,
int sg_nents,
unsigned int page_size);
int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
unsigned int sg_offset, unsigned int page_size);
static inline int
ib_map_mr_sg_zbva(struct ib_mr *mr,
struct scatterlist *sg,
int sg_nents,
unsigned int page_size)
ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents,
unsigned int sg_offset, unsigned int page_size)
{
int n;
n = ib_map_mr_sg(mr, sg, sg_nents, page_size);
n = ib_map_mr_sg(mr, sg, sg_nents, sg_offset, page_size);
mr->iova = 0;
return n;
}
int ib_sg_to_pages(struct ib_mr *mr,
struct scatterlist *sgl,
int sg_nents,
int (*set_page)(struct ib_mr *, u64));
int ib_sg_to_pages(struct ib_mr *mr, struct scatterlist *sgl, int sg_nents,
unsigned int sg_offset, int (*set_page)(struct ib_mr *, u64));
void ib_drain_rq(struct ib_qp *qp);
void ib_drain_sq(struct ib_qp *qp);