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authorMax Gurtovoy <maxg@mellanox.com>2019-06-11 18:52:41 +0300
committerJason Gunthorpe <jgg@mellanox.com>2019-06-24 17:49:26 +0300
commit7c717d3aeeaabbfddd0fe949b501595a2e3469e4 (patch)
treeb09cfa30d0c7f6cfedda116772fbac62434511b4 /include
parent2cdfcdd8677b277b32d32ef8976802dc5d5f883f (diff)
downloadlinux-7c717d3aeeaabbfddd0fe949b501595a2e3469e4.tar.xz
RDMA/core: Add signature attrs element for ib_mr structure
This element will describe the needed characteristics for the signature operation per signature enabled memory region (type IB_MR_TYPE_INTEGRITY). Also add meta_length attribute to ib_sig_attrs structure for saving the mapped metadata length (needed for the new API implementation). Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Israel Rukshin <israelr@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include')
-rw-r--r--include/rdma/ib_verbs.h2
-rw-r--r--include/rdma/signature.h2
2 files changed, 3 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 632e133e7a59..995b217a1940 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1739,7 +1739,7 @@ struct ib_mr {
};
struct ib_dm *dm;
-
+ struct ib_sig_attrs *sig_attrs; /* only for IB_MR_TYPE_INTEGRITY MRs */
/*
* Implementation details of the RDMA core, don't use in drivers:
*/
diff --git a/include/rdma/signature.h b/include/rdma/signature.h
index 5998fe94dfd4..f24cc2a1d3c5 100644
--- a/include/rdma/signature.h
+++ b/include/rdma/signature.h
@@ -80,11 +80,13 @@ struct ib_sig_domain {
* @check_mask: bitmask for signature byte check (8 bytes)
* @mem: memory domain layout descriptor.
* @wire: wire domain layout descriptor.
+ * @meta_length: metadata length
*/
struct ib_sig_attrs {
u8 check_mask;
struct ib_sig_domain mem;
struct ib_sig_domain wire;
+ int meta_length;
};
enum ib_sig_err_type {