From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: Re: dedicated list for rdma userspace programming Date: Mon, 24 Apr 2017 13:42:59 +0300 Message-ID: <20170424104259.GH14088@mtr-leonro.local> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="nM4qzG6nHdnn/sXd" Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Vasiliy Tolstov Cc: linux-rdma List-Id: linux-rdma@vger.kernel.org --nM4qzG6nHdnn/sXd Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Apr 24, 2017 at 12:58:53PM +0300, Vasiliy Tolstov wrote: > Hi! Does this mailing list suitable for questions about rdma userspace > programming or i need to find another list? This is the right list. > > My question is - how userspace libraries communicate with kernel > devices which provided by kernel infiniband drivers? This is character > devices and userspace libraries read/write to it or userspace library > do some ioctls? There are number of char devices exported by infiniband subsystem (/dev/infiniband/*) and the communication is performed with read/write interfaces to uverbs file [1]. Right now, we are in process of migration from these interfaces to ioctl based, see Matan's latest RFC [2]. [1] https://github.com/linux-rdma/rdma-core/blob/master/Documentation/libibverbs.md [2] http://marc.info/?l=linux-rdma&m=149261526916544&w=2 > > Where i can find info about it? > > -- > Vasiliy Tolstov, > e-mail: v.tolstov-+9FY0jupvH6HXe+LvDLADg@public.gmane.org > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org > More majordomo info at http://vger.kernel.org/majordomo-info.html --nM4qzG6nHdnn/sXd Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEkhr/r4Op1/04yqaB5GN7iDZyWKcFAlj91rMACgkQ5GN7iDZy WKfdEw/8DJh1AgPexCZPVxvcnzPUd7GZ8nFzJ9i/UBaC51KbxXlyQFaJoqSWWbz5 637fmdtAGe6In3GDLOkNJRjR5hCQZl4+8V1b0QcqI5jci1ZLwAW3jdOMC3IFVH95 9oSlbUSslOIJskiolA6O8S6MxIQXzy3iuPBLk7S9+NRqFygyf9MqczTOnYx7EiEQ 1f1t8GQqq48Zljb+1i6FyjISkLMEprYqYfMNDCg2f28dmqOvQ6/mHX39VKBGO5OB zlQ1rkZiw21Hxa0GsmQJY4xOzxdLFb/Zp4FBevdh1cN3HLWTi8qwyVQMM5bjXjW+ mdFVSjtmWxf/zsGX+uu5OLjGGRJeSY1KiENcPC2EcvjXWeh8Ya6UwuGAqXeKjvfb +7budFNUXUEELMHsSpCir4CBdL0a1OYgLvkDOQ14HWBxSjlzGGJ4yeZOzDsKC0Gk fLW56p+R28eYUxweXDwKSuQqyCf6pE3KqyFpZ/9G0HGScBKyv8MSv2MDByHQolVn ugJmhbjb4W1YnwbnBwwzXyRSYI2NdhJdBzChR0vJ5pvACzJF4bAV2WK5iZMohLb4 ZS7As7Zy79rIWuOJhaX9BSmZFo5IEqfz5Z2IFMZTJlj4C/NpbrkYw/xKwTXKX4Ex hafZYneBZHpo/N1F4fiwKxvfj3GAtcYtU5GTGkThttLUbx4y8kE= =q6hk -----END PGP SIGNATURE----- --nM4qzG6nHdnn/sXd-- -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html