From 42849b2697c36abdafa6aef64186b15055392046 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Thu, 11 Aug 2011 13:57:43 -0700 Subject: RDMA/uverbs: Export ib_open_qp() capability to user space Allow processes that share the same XRC domain to open an existing shareable QP. This permits those processes to receive events on the shared QP and transfer ownership, so that any process may modify the QP. The latter allows the creating process to exit, while a remaining process can still transition it for path migration purposes. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- include/rdma/ib_user_verbs.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'include/rdma') diff --git a/include/rdma/ib_user_verbs.h b/include/rdma/ib_user_verbs.h index 100abbbd6e6e..81aba3a73aa3 100644 --- a/include/rdma/ib_user_verbs.h +++ b/include/rdma/ib_user_verbs.h @@ -84,7 +84,8 @@ enum { IB_USER_VERBS_CMD_POST_SRQ_RECV, IB_USER_VERBS_CMD_OPEN_XRCD, IB_USER_VERBS_CMD_CLOSE_XRCD, - IB_USER_VERBS_CMD_CREATE_XSRQ + IB_USER_VERBS_CMD_CREATE_XSRQ, + IB_USER_VERBS_CMD_OPEN_QP }; /* @@ -422,6 +423,17 @@ struct ib_uverbs_create_qp { __u64 driver_data[0]; }; +struct ib_uverbs_open_qp { + __u64 response; + __u64 user_handle; + __u32 pd_handle; + __u32 qpn; + __u8 qp_type; + __u8 reserved[7]; + __u64 driver_data[0]; +}; + +/* also used for open response */ struct ib_uverbs_create_qp_resp { __u32 qp_handle; __u32 qpn; -- cgit v1.2.3