Man Pages

ibv_close_xrcd(3) - phpMan ibv_close_xrcd(3) - phpMan

Command: man perldoc info search(apropos)  

IBV_OPEN_XRCD(3)        Libibverbs Programmer's Manual        IBV_OPEN_XRCD(3)

       ibv_open_xrcd, ibv_close_xrcd - open or close an XRC protection domain (XRCDs)

       #include <infiniband/verbs.h>

       struct ibv_xrcd *ibv_open_xrcd(struct ibv_context *context,
                                      struct ibv_xrcd_init_attr *xrcd_init_attr);

       int ibv_close_xrcd(struct ibv_xrcd *xrcd);

       ibv_open_xrcd()  open an XRC domain for the RDMA device context context xrcd_init_attr is an ibv_xrcd_init_attr
       struct, as defined in <infiniband/verbs.h>.

       struct ibv_xrcd_init_attr {
               uint32_t         comp_mask;  /* Identifies valid fields */
               int              fd;
               int              oflag;

       fd is the file descriptor to associate with the XRCD.  oflag describes the desired creation attributes.  It  is
       a bitwise OR of zero or more of the following flags:

              Indicates  that  an XRCD should be created and associated with the inode referenced by the given fd.  If
              the XRCD exists, this flag has no effect except as noted under O_EXCL below.

       O_EXCL If O_EXCL and O_CREAT are set, open will fail if an XRCD associated with the inode exists.

       If fd equals -1, no inode is associated with the XRCD. To indicate that XRCD should be  created,  use  oflag  =

       ibv_close_xrcd() closes the XRCD xrcd.  If this is the last reference, the XRCD will be destroyed.

       ibv_open_xrcd() returns a pointer to the opened XRCD, or NULL if the request fails.

       ibv_close_xrcd() returns 0 on success, or the value of errno on failure (which indicates the failure reason).

       ibv_close_xrcd() may fail if any other resource is still associated with the XRCD being closed.

       ibv_create_srq_ex(3), ibv_create_qp_ex(3),

       Sean Hefty <>

libibverbs                        2011-06-17                  IBV_OPEN_XRCD(3)