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| author | Matan Barak <matanb@mellanox.com> | 2014-07-31 11:01:28 +0300 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-08-01 15:11:13 -0700 |
| commit | 7e6edb9b2e0bcfb2a588db390c44d120213c57ae (patch) | |
| tree | 9a8699e7cf72bc2c12574e3a2c46ddf10c542cd2 /include/rdma/ib_verbs.h | |
| parent | 64aa90f26c06e1cb2aacfb98a7d0eccfbd6c1a91 (diff) | |
| download | lwn-7e6edb9b2e0bcfb2a588db390c44d120213c57ae.tar.gz lwn-7e6edb9b2e0bcfb2a588db390c44d120213c57ae.zip | |
IB/core: Add user MR re-registration support
Memory re-registration is a feature that enables changing the
attributes of a memory region registered by user-space, including PD,
translation (address and length) and access flags.
Add the required support in uverbs and the kernel verbs API.
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'include/rdma/ib_verbs.h')
| -rw-r--r-- | include/rdma/ib_verbs.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 7ccef342f724..ed44cc07a7b3 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1097,7 +1097,8 @@ struct ib_mr_attr { enum ib_mr_rereg_flags { IB_MR_REREG_TRANS = 1, IB_MR_REREG_PD = (1<<1), - IB_MR_REREG_ACCESS = (1<<2) + IB_MR_REREG_ACCESS = (1<<2), + IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1) }; /** @@ -1547,6 +1548,13 @@ struct ib_device { u64 virt_addr, int mr_access_flags, struct ib_udata *udata); + int (*rereg_user_mr)(struct ib_mr *mr, + int flags, + u64 start, u64 length, + u64 virt_addr, + int mr_access_flags, + struct ib_pd *pd, + struct ib_udata *udata); int (*query_mr)(struct ib_mr *mr, struct ib_mr_attr *mr_attr); int (*dereg_mr)(struct ib_mr *mr); |