From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id DB10543F76; Fri, 3 May 2024 15:54:32 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id A178E402D7; Fri, 3 May 2024 15:54:32 +0200 (CEST) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by mails.dpdk.org (Postfix) with ESMTP id 60E67402D8 for ; Fri, 3 May 2024 15:54:31 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1714744471; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type; bh=lJAg01CHWWoKwY862/sZhYDQmRQrL8N+9p67HONLTmU=; b=Emg1SHnSxg1tu6+u+SZNo75AjHpiRTNoLnH3Kd/+vt5tdqSpuBW629j9bHCRtMWP4TQiuj FOvSyF2ZDiggt4cjbp7GLRnsnYXcMbiWu/1UVQRp1PYb0H1lTicbndYEs0TqEmVqg/xP6J glHIAUOFG0tVEpH9BhRuE8GPBy09RO8= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-591-Lorq1b6-NauMlur36Bnu3w-1; Fri, 03 May 2024 09:54:27 -0400 X-MC-Unique: Lorq1b6-NauMlur36Bnu3w-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 38B781C4C38F; Fri, 3 May 2024 13:54:27 +0000 (UTC) Received: from RHTRH0061144 (unknown [10.22.10.60]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 14C0D8C4; Fri, 3 May 2024 13:54:27 +0000 (UTC) From: Aaron Conole To: dev@dpdk.org, techboard@dpdk.org Subject: Minutes of Technical Board meeting 17-April-2024 Date: Fri, 03 May 2024 09:54:26 -0400 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.1 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Next Meeting will be May 15th, with Bruce as chair. Attendees --------- - Aaron (chair) - Morten Brorup - David Marchand - Konstantin Ananyev - Tyler Retzlaff - Mykola Kostenok - Paul Szczepanik - Kevin Traynor - Jerin Jacob Kollanukkaran - Nathan Southern - Patrick Robb - Stephen Hemminger - Bruce Richardson - Honnappa Nagarahalli - Nathan Southern - Ben Thomas Topics ------ - MSVC VLAs - Tyler mentioned this is a blocking issue currently MSVC does not support VLAs and is not going to support VLAs - All supported compilers, including MSVC support using 'alloca' as an alternative to VLAs, but there is resistance to using 'alloca'. - Asking for input on how to resolve the issue - Stephen advocates fixing the libraries not to use VLAs where drivers may be addressed later. - Tyler has been working on changing some of the libraries - Bruce, plan to replace the minimum set seems reasonable - Konstantin, alloca looks unavoidable in some cases and isn't in favor of just blanket replacing it via grep. - If there is an obvious replacement for the pattern being used, then use it, otherwise maybe look to use static arrays to synthesize an alloca, or other techniques. - Tyler to continue working and will put series forward - QUIC library to support HW Offload - Ask is from the Gov board, and don't have many details - Looking for an owner for this effort - TCP Optimization for ML/AI use cases - Linux kernel does have some kind of story here - Looking for an owner for this effort - Kernel header import - Maxime proposes to automate importing the Linux kernel uAPI headers - Background: - Current process need to redefine the same things which exist, or have a current kernel tree for the vduse drivers. - Concerns: - Headers for the uAPI have some kinds of licensing exceptions - Need clarification from Gov board about including the uAPI licensed headers. - There ends up being issues with maintainership, which versions of headers are included, whether there are kinds of issues with version compatibility. - QEMU currently does the same as Maxime has confirmed. QEMU seems to only copy the headers needed and updates them only when needed. - Alternative, can we have DPDK build to point to a different kernel header file location? This does introduce its own issues (who is responsible for compilation failures, etc). Adding a fixed version in the tree avoids the problem of pointing to a tree. - Have a mechanism to download headers? Also has issues - what URL to use? Kernel headers can't come directly from git, need to be sanitized via make headers-install - Open Questions: - Can we ask the gov board for clarification? - Agree to move to the mailing list for discussion - Coding Challenge - Ben ran a poll on social media, positive response to the idea of coding challenge. - Interest looks like rust integration was highest, then protocol integration, ai- integration, and others following - Rust seems to generate the most interest? - Questions: - When is it supposed to happen? - Next step is to present to Gov Board to get logistics resolved, so best guess is Q3 - How long would it last? - Scope is quite large for 'rust integration', and it is not clear what the challenge and scope would be. - Trying to get it in time for Summit. - Stephen, wants to make sure each time gets attention, ownership, and movement. - Ben will present the details to the Gov Board - Next meeting date scheduled for 15-May - voted - Mykola has questions about submitting for a refactored PMD series - Answered some live, referred to the guides in the documentation as well. - Plan to send a simpler version of the PMD - Include any restrictions in docs - Trying to understand the deadlines as well for the PMD submissions - Drivers generally get merged in -RC2 - Suggestion is to post patches early because reviews will take some time. - Update on the Gov Board events votes: - Approved Bangkok event in July - Will work on aggressively promoting because there isn't much time left to promote. - Webinar event was attended 1/2 by members of APAC, so it should be good. - Montreal event in fall will be covered with Gov Board again on April 30. - Date has been difficult, but looks to be 24-Sep