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Thu, 08 Feb 2024 22:55:27 -0800 (PST) Date: Fri, 9 Feb 2024 07:55:26 +0100 From: Jiri Pirko To: Jakub Kicinski Cc: Saeed Mahameed , Arnd Bergmann , Greg Kroah-Hartman , Leon Romanovsky , Jason Gunthorpe , Jiri Pirko , Leonid Bloch , Itay Avraham , Saeed Mahameed , David Ahern , Aron Silverton , Christoph Hellwig , andrew.gospodarek@broadcom.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH V4 0/5] mlx5 ConnectX control misc driver Message-ID: References: <20240207072435.14182-1-saeed@kernel.org> <20240207070342.21ad3e51@kernel.org> <20240208181555.22d35b61@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240208181555.22d35b61@kernel.org> Fri, Feb 09, 2024 at 03:15:55AM CET, kuba@kernel.org wrote: >On Wed, 7 Feb 2024 21:03:35 -0800 Saeed Mahameed wrote: >> On 07 Feb 07:03, Jakub Kicinski wrote: >> >On Tue, 6 Feb 2024 23:24:30 -0800 Saeed Mahameed wrote: >> >> From: Saeed Mahameed [...] > >> Ok you don't like DPLL, > >I didn't say I dislike DPLL. I think it's a very odd example for >you to pick for nVidia's contribution. My recollection is: > > - Maciej from Intel started developing upstream API for SyncE support > - I asked him to generalize it to DPLL, he started working on it > - nVidia expressed interest in creating a common interface, we thought > it'd be great to align vendors > - nVidia hired Maciej from Intel, shutting down Intel's progress for a while > - nVidia went AWoL, long response times, we held meetings to nudge > you along, no commitments > - then after months and months Jiri started helping Arkadiusz and Vadim > >I remember thinking at the time that it must have been a terrible >experience for Intel, definitely not how cooperation upstream should >look :| For the record, I spent huge amount of time reviewing the patchset and ended up with redesigning significant chunks of it, steering Arkadiusz and Vadim the way I felt is the correct one. Oftentimes I said to myself it would be much quicker to take the patchset over and do it myself :) Anyway, at the end, I think that the result is very good. Solid and well defined uapi, nice kernel implementation, 3 drivers implementing it, each with slightly different usecase, all clicks. If this is not good example of upstream cooperation, I'm not sure what else is... But, I don't think this is related to the misc driver discussion, I just wanted to express my pov on dpll process, when I see people talking about it :) > >IDK how disconnected from upstream netdev you have to be to put that on >your banner. [...]