From mboxrd@z Thu Jan 1 00:00:00 1970 From: Leon Romanovsky Subject: Re: [PATCH V1 for-next 0/2] Add support for reporting LSO capabilities Date: Wed, 27 Apr 2016 20:09:03 +0300 Message-ID: <20160427170903.GA11554@leon.nu> References: <1461765892-1285-1-git-send-email-matanb@mellanox.com> <20160427164230.GB11617@obsidianresearch.com> Reply-To: leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="W/nzBZO5zC0uMSeA" Return-path: Content-Disposition: inline In-Reply-To: <20160427164230.GB11617-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Jason Gunthorpe Cc: Matan Barak , Doug Ledford , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Majd Dibbiny , Christoph Lameter List-Id: linux-rdma@vger.kernel.org --W/nzBZO5zC0uMSeA Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 27, 2016 at 10:42:30AM -0600, Jason Gunthorpe wrote: > On Wed, Apr 27, 2016 at 05:04:50PM +0300, Matan Barak wrote: >=20 > > This patch series enables hardware to report Large Segment Offload(LSO) > > capabilities from kernel to user space. LSO enabled NIC will accept big= chuck of > > data with size greater than MTU. The LSO engine will split them into > > separate packets and insert the headers automatically. With LSO, CPU is > > offloaded from dealing with much less throughput of data. >=20 > I also feel like we should stop changing the current uAPI until we get > the new one in place. This functionality doesn't relate to ABI change and don't change current/future interfaces. There is no need to stop changes like this. >=20 > Eg, the gross thing Christoph points out about the QP type bitmap can > probably go away in the new uAPI. We are taking part in this new ABI effort and have full responsibility to adapt our drivers (mlx4/mlx5) to new ABI whenever it comes. >=20 > Jason > -- > 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 --W/nzBZO5zC0uMSeA Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJXIPIvAAoJEORje4g2clinzGMP/3+Qy/xRtjCv6HlXKkZxaXUj G6VYb0jihDuZRgmCeqWIoIk1YHbWJwpMpD84mBu5mz6YuEuewl3X5xU39hsCLmOe 8MZnmlvQtkUGJR43mZMAalOOuCzPj4ymMmYWg1v2ViIib3ADyibbBnh4gpYPhMVB EplhIqpofm7OkV6yi8pbRowJ/e0eL3eHx20Ru3pQiHNzW8CEa2RK7W9N1P6wIvbl 5xekfAbjmh7vL+XpO7ChASSWnjHZdia7nPYvhD9fWamAt1ErrXFd/reRiwtD+crI JpD4DLQBZ3eyza6MfDAf03wXr7SGVi8qKDnTqXPOYH+azF2Z8gTyX+49GcWDY5xW YZ/1oSkCNFHqPwohoevJJoKetEHBQXrGpE4vMbWFXHungmaqse4QT+yi1upYMUDA qo8oKQy/GUs4Pa1VsfY7LNJTfYw3AHUYC7BySezm/T4FLsBoeXr92IEQ4xPPZDUs Ru3scFmQl56MNfTH6huRcRy8NpWlTWxH3ZXnGipIIofU75ozpf1nYk87h0uBCvEh MvdNoKEYMyyGhMm2eOgPo3SWrkhrm2Wuiq8Kdcn/+W0IWgYrIy7zqMvicXScw0oB 1WNUpVa51hKBF2vYL+hqyWwdEfdNNmmpUfSOSJGD57jaPjz+lKGT+WcU+hT32ZGx o2JRW4fkk/BLHdlgc9Mj =v7ZD -----END PGP SIGNATURE----- --W/nzBZO5zC0uMSeA-- -- 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