ibv_import_device3
Import a device from a given command fd
Usage
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#include <infiniband/verbs.h> struct ibv_context *ibv_import_device(int cmd_fd);
Overview
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.
Return value
ibv_import_device() returns a pointer to the allocated RDMA context, or NULL if the request fails, and errno is set to indicate the reason.
Releases
4 releases since Debian 11 (Bullseye); the text changed 3 times.