On Mon, Feb 08, 2021 at 10:57:46AM +0200, Ido Schimmel wrote: > On Mon, Feb 08, 2021 at 09:03:50AM +0200, Leon Romanovsky wrote: > > On Mon, Feb 01, 2021 at 08:08:37PM +0200, Ido Schimmel wrote: > > > On Mon, Feb 01, 2021 at 09:37:11AM +0800, Chris Mi wrote: > > > > Hi Ido, > > > > > > > > On 1/30/2021 10:42 PM, Ido Schimmel wrote: > > > > > On Fri, Jan 29, 2021 at 12:30:09PM -0800, Jakub Kicinski wrote: > > > > > > On Fri, 29 Jan 2021 14:08:39 +0800 Chris Mi wrote: > > > > > > > Instead of discussing it several days, maybe it's better to review > > > > > > > current patch, so that we can move forward :) > > > > > > It took you 4 revisions to post a patch which builds cleanly and now > > > > > > you want to hasten the review? My favorite kind of submission. > > > > > > > > > > > > The mlxsw core + spectrum drivers are 65 times the size of psample > > > > > > on my system. Why is the dependency a problem? > > > > > mlxsw has been using psample for ~4 years and I don't remember seeing > > > > > a > > > > > single complaint about the dependency. I don't understand why this > > > > > patch > > > > > is needed. > > > > Please see Saeed's comment in previous email: > > > > > > > > " > > > > > > > > The issue is with distros who ship modules independently.. having a > > > > hard dependency will make it impossible for basic mlx5_core.ko users to > > > > load the driver when psample is not installed/loaded. > > > > > > > > I prefer to have 0 dependency on external modules in a HW driver. > > > > " > > > > > > I saw it, but it basically comes down to personal preferences. > > > > It is more than personal preferences. In opposite to the mlxsw which is > > used for netdev only, the mlx5_core is used by other subsystems, e.g. RDMA, > > so Saeed's request to avoid extra dependencies makes sense. > > > > We don't need psample dependency to run RDMA traffic. > > Right, you don't need it. The dependency is "PSAMPLE || PSAMPLE=n". You > can compile out psample and RDMA will work.
So do you suggest to all our HPC users recompile their distribution kernel just to make sure that psample is not called? > > > > > > > > > > > > > > We are working on a tc sample offload feature for mlx5_core. The distros > > > > are likely to request us to do this. So we address it before submitting > > > > the driver changes. > > > > > > Which distros? Can they comment here? mlxsw is in RHEL and I don't > > > remember queries from them about the psample module. > > > > There is a huge difference between being in RHEL and actively work with > > partners as mlx5 does. > > > > The open mailing list is not the right place to discuss our partnership > > relations. > > I did not ask about "partnership relations". I asked for someone more > familiar with the problem that can explain the distro issue. But if such > a basic question can't be asked, then the distro argument should not > have been made in the first place. It is not what you wrote, but if you don't want to take distro argument into account, please don't bring mlxsw either. Thanks
