RDMA/uverbs: Export XRC domains to user space
Allow user space to create XRC domains. Because XRCDs are expected to
be shared among multiple processes, we use inodes to identify an XRCD.
Based on patches by Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ac46dcf..dfd9b87 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -851,6 +851,7 @@
struct list_head qp_list;
struct list_head srq_list;
struct list_head ah_list;
+ struct list_head xrcd_list;
int closing;
};
@@ -881,6 +882,7 @@
struct ib_xrcd {
struct ib_device *device;
atomic_t usecnt; /* count all exposed resources */
+ struct inode *inode;
struct mutex tgt_qp_mutex;
struct list_head tgt_qp_list;