ibv_import_device(3)

📦
version 62.0 · 9 versions
, in alpine 3.24, centos-stream 10, centos-stream 9, ubuntu jammy

🎀 NAME 🎀

okay so bestie, this is ibv_import_device from the Libibverbs Programmer’s Manual — it imports a device from a given command FD. periodt. 💅

✨ SYNOPSIS ✨

#include <infiniband/verbs.h>

struct ibv_context *ibv_import_device(int cmd_fd);

💖 DESCRIPTION 💖

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

The cmd_fd is obtained from the ibv_context cmd_fd member, and it must be dup’d (eg by dup(), SCM_RIGHTS, etc) before being passed to ibv_import_device(). no cap, that part is literally mandatory. 🫶

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. it’s giving responsible cleanup energy ✨

🔥 RETURN VALUE 🔥

ibv_import_device() returns a pointer to the allocated RDMA context, or NULL if the request fails. simple as that, bestie 💀

👀 SEE ALSO 👀

🫶 AUTHOR 🫶

Yishai Hadas <yishaih@mellanox.com>

that’s the whole vibe 💖 this page comes from libibverbs, dated 2020-5-3 — go import that device and slay, bestie ✨👑🌸

📦 where this page comes from