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authorParav Pandit <parav@mellanox.com>2018-06-19 10:59:14 +0300
committerJason Gunthorpe <jgg@mellanox.com>2018-06-25 14:19:56 -0600
commitb7403217656dcf6c51f09d0bca7a12db0de8934a (patch)
tree7b33cae5ff1d69441813710a23498bbb606e13cf /include/rdma/ib_verbs.h
parent70324739ac5e0332dc053eaeaba773f5ab755879 (diff)
IB: Make ib_init_ah_attr_from_wc set sgid_attr
The work completion is inspected to determine what dgid table entry was used to receieve the packet, produces a sgid_attr that matches and sticks it in the ah_attr. All callers of this function are now required to release the ah_attr on success. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'include/rdma/ib_verbs.h')
-rw-r--r--include/rdma/ib_verbs.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 995d517c0a76..c01e9c6ed666 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3150,6 +3150,13 @@ int ib_get_rdma_header_version(const union rdma_network_hdr *hdr);
* ignored unless the work completion indicates that the GRH is valid.
* @ah_attr: Returned attributes that can be used when creating an address
* handle for replying to the message.
+ * When ib_init_ah_attr_from_wc() returns success,
+ * (a) for IB link layer it optionally contains a reference to SGID attribute
+ * when GRH is present for IB link layer.
+ * (b) for RoCE link layer it contains a reference to SGID attribute.
+ * User must invoke rdma_cleanup_ah_attr_gid_attr() to release reference to SGID
+ * attributes which are initialized using ib_init_ah_attr_from_wc().
+ *
*/
int ib_init_ah_attr_from_wc(struct ib_device *device, u8 port_num,
const struct ib_wc *wc, const struct ib_grh *grh,