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| author |   Israel Rukshin <israelr@mellanox.com> | 2019-06-11 18:52:39 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-06-24 11:49:26 -0300 |
| commit | 26bc7eaee94fd904d1817fee4d864f8526807465 (patch) | |
| tree | 2efbe0e665f3fae0bc6f4f4d2f2ccc7d0eae84a4 /include | |
| parent | RDMA/core: Save the MR type in the ib_mr structure (diff) | |
| download | linux-dev-26bc7eaee94fd904d1817fee4d864f8526807465.tar.xz linux-dev-26bc7eaee94fd904d1817fee4d864f8526807465.zip | |
RDMA/core: Introduce IB_MR_TYPE_INTEGRITY and ib_alloc_mr_integrity API
This is a preparation for signature verbs API re-design. In the new
design a single MR with IB_MR_TYPE_INTEGRITY type will be used to perform
the needed mapping for data integrity operations.
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
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 | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index b6ec71ee4d3e..01bc04c8e220 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -788,6 +788,8 @@ __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate); * application * @IB_MR_TYPE_DMA: memory region that is used for DMA operations * without address translations (VA=PA) + * @IB_MR_TYPE_INTEGRITY: memory region that is used for + * data integrity operations */ enum ib_mr_type { IB_MR_TYPE_MEM_REG, @@ -796,6 +798,7 @@ enum ib_mr_type { IB_MR_TYPE_DM, IB_MR_TYPE_USER, IB_MR_TYPE_DMA, + IB_MR_TYPE_INTEGRITY, }; enum ib_mr_status_check { @@ -2363,6 +2366,9 @@ struct ib_device_ops { int (*dereg_mr)(struct ib_mr *mr, struct ib_udata *udata); struct ib_mr *(*alloc_mr)(struct ib_pd *pd, enum ib_mr_type mr_type, u32 max_num_sg, struct ib_udata *udata); + struct ib_mr *(*alloc_mr_integrity)(struct ib_pd *pd, + u32 max_num_data_sg, + u32 max_num_meta_sg); int (*advise_mr)(struct ib_pd *pd, enum ib_uverbs_advise_mr_advice advice, u32 flags, struct ib_sge *sg_list, u32 num_sge, @@ -4042,6 +4048,10 @@ static inline struct ib_mr *ib_alloc_mr(struct ib_pd *pd, return ib_alloc_mr_user(pd, mr_type, max_num_sg, NULL); } +struct ib_mr *ib_alloc_mr_integrity(struct ib_pd *pd, + u32 max_num_data_sg, + u32 max_num_meta_sg); + /** * ib_update_fast_reg_key - updates the key portion of the fast_reg MR * R_Key and L_Key. |