On Thu, Jan 26, 2017 at 05:56:15PM +0200, Yishai Hadas wrote: > This patchset from Leon adds direct access to mlx5 devices. > > The libibverbs API is an abstract API. It is agnostic to any underlying > provider specific implementation. While this abstraction has the advantage of > user applications portability it has a performance penalty. For some > applications optimizing performance is more important than portability. > > The mlx5 direct verbs API introduced in this patchset is intended for such > applications. It exposes mlx5 specific low level data path > (send/receive/completion) operations, allowing the application to bypass the > libibverbs data path API. Applications need to link directly to the libraries that provide the symbols they use - this approach you have where linking happens implicitly at runtime is not OK. Somehow libmlx needs to be in the standard ld.so search path, and available for linking via gcc, as well as continuing to be a plugin.. The best choice might be to put it in /usr/lib/../libmlx5.so.1 and symlink that file to /usr/lib/../libibverbs/libmlx5-rdmav2.so This series also needs patches to the included packaging files to bundle the new files. (buildlib/cbuild exists for a reason, be sure to test the packaging) These probably need a man page as well. It wasn't instantly obvious to me how these were supposed to work. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
