diff options
| author | Max Gurtovoy <maxg@mellanox.com> | 2019-06-11 18:52:40 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-06-24 11:49:26 -0300 |
| commit | 2cdfcdd8677b277b32d32ef8976802dc5d5f883f (patch) | |
| tree | 9a664e268f819348bb831d1bcb5f7d1386906736 /include | |
| parent | 26bc7eaee94fd904d1817fee4d864f8526807465 (diff) | |
| download | linux-2cdfcdd8677b277b32d32ef8976802dc5d5f883f.tar.bz2 | |
RDMA/core: Introduce ib_map_mr_sg_pi to map data/protection sgl's
This function will map the previously dma mapped SG lists for PI
(protection information) and data to an appropriate memory region for
future registration.
The given MR must be allocated as IB_MR_TYPE_INTEGRITY.
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_verbs.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 01bc04c8e220..632e133e7a59 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2437,6 +2437,11 @@ struct ib_device_ops { int (*read_counters)(struct ib_counters *counters, struct ib_counters_read_attr *counters_read_attr, struct uverbs_attr_bundle *attrs); + int (*map_mr_sg_pi)(struct ib_mr *mr, struct scatterlist *data_sg, + int data_sg_nents, unsigned int *data_sg_offset, + struct scatterlist *meta_sg, int meta_sg_nents, + unsigned int *meta_sg_offset); + /** * alloc_hw_stats - Allocate a struct rdma_hw_stats and fill in the * driver initialized data. The struct is kfree()'ed by the sysfs @@ -4236,6 +4241,10 @@ int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table); int ib_map_mr_sg(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, unsigned int *sg_offset, unsigned int page_size); +int ib_map_mr_sg_pi(struct ib_mr *mr, struct scatterlist *data_sg, + int data_sg_nents, unsigned int *data_sg_offset, + struct scatterlist *meta_sg, int meta_sg_nents, + unsigned int *meta_sg_offset, unsigned int page_size); static inline int ib_map_mr_sg_zbva(struct ib_mr *mr, struct scatterlist *sg, int sg_nents, |