From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: RDMA miniconf: Persistent device naming Date: Mon, 31 Jul 2017 14:36:33 +0300 Message-ID: <20170731113633.GU13672@mtr-leonro.local> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="H88uUF932U8Oj0a6" Return-path: Content-Disposition: inline Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Liran Liss , Tzahi Oved List-Id: linux-rdma@vger.kernel.org --H88uUF932U8Oj0a6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi All, I would like to propose the discussion about ability to add persistent device naming to RDMA subsystem. Right now, the devices receive their names by simple addition of new free index to the name (mlx5_0, mlx5_1 ...). Such naming scheme depends on the PCI probing and in case of device reset can rename device. Such situation doesn't help to provide constant udev rules, reliable ibverbs hotplug and advanced "set command" of RDMAtool which at some point of time will require reinit of ib_device. In this discussion, I want to present netdev implementation of such feature, talk about implications on libibverbs and suggest possible device name convention. Thanks --H88uUF932U8Oj0a6 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEkhr/r4Op1/04yqaB5GN7iDZyWKcFAll/FkEACgkQ5GN7iDZy WKeT/BAAs4eao18wUGG24/tDjnwXWXSlM3oPMQXLkXMe6xaxZCDIGF3kcWdOkprE hKtu/kw9DTJrVpivmwbYcLkSXmDZlITwoCS9zMGy9URjLys7duHBGrKQsiYLaw/F FG5ntFFhh/rIbyL5ZNxrfCZVHM2yxxhqiEe7MRFtKuimZxPaURf6em8Ja3xAaEYb 9n97bwKcpQXGQOhnXemetXf302CTxZSkx1V+u8tYDDRVl9EQATyHuAn92IVzpcVv K5QnZ293M1x0tZLKIDV6cArMOpWlQ0R283Z7SoOtG3qgtI+F0Y9hvzx8yzbLshlR qbaFbbLpfjiKTRkF/GrpmXak25fRNqEMDdkBD7GzF7UDiqJKCNEZwiwixTTF4kEL tGPq1R10ppIanBoMJ2o3LtIPXYOeiNoJw0K+ybHbxjRChMVjMjrZjvRirirmz63C d2UobCOJ4Bw6IKKVZlBeR5MzvPYn4RGVg0s0CsG/YdaiVzjnJfxrYIcD7S5ooGdQ IwM5Vo/i8F7r4sv+VvvkSICnKXjeO4imLXKmlao5TljhzNOuQRQu19ixfPbBoZ2z 7efjHTcP6Hf/nXB628dEJoSsYxfqHatqQF+sLShlVUVFMB+cmtYXJzCKclTaHwCs Ur7eI+kR4B7bEZktpj5K+JOSQqhnizoJgPw/RsrCYe+3zKeayvg= =4Rk+ -----END PGP SIGNATURE----- --H88uUF932U8Oj0a6-- -- 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