ibv_import_device(3) Libibverbs Programmer’s Manual ibv_import_device(3)

ibv_import_device - import a device from a given command FD

#include <infiniband/verbs.h>
struct ibv_context *ibv_import_device(int cmd_fd);

ibv_import_device() returns an ibv_context pointer that is associated with the given cmd_fd.

The cmd_fd is obtained from the ibv_context cmd_fd member, which must be dup’d (eg by dup(), SCM_RIGHTS, etc) before being passed to ibv_import_device().

Once the ibv_context usage has been ended ibv_close_device() should be called. This call may cleanup whatever is needed/opposite of the import including closing the command FD.

ibv_import_device() returns a pointer to the allocated RDMA context, or NULL if the request fails.

ibv_open_device(3), ibv_close_device(3),

Yishai Hadas <yishaih@mellanox.com>

2020-5-3 libibverbs