From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3128AC25B10 for ; Thu, 9 May 2024 18:15:18 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id AB3D46B0099; Thu, 9 May 2024 14:15:17 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A3C056B009B; Thu, 9 May 2024 14:15:17 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8DCC66B009C; Thu, 9 May 2024 14:15:17 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 6BA3E6B0099 for ; Thu, 9 May 2024 14:15:17 -0400 (EDT) Received: from smtpin21.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 1E7168028B for ; Thu, 9 May 2024 18:15:17 +0000 (UTC) X-FDA: 82099659474.21.FD3EE59 Received: from sin.source.kernel.org (sin.source.kernel.org [145.40.73.55]) by imf24.hostedemail.com (Postfix) with ESMTP id 7D8BA180009 for ; Thu, 9 May 2024 18:15:13 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=i0YvPFhM; spf=pass (imf24.hostedemail.com: domain of song@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=song@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1715278514; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=AeL9LgunDsJxfxIGjvMY8yxKOYDFDU8ptsor2SXkmQ8=; b=lMUy/rKtkOOnipf0xwNBnArlfM4WnAapAvfN8SEOi3s6yvGv1YB88dicWTbcnOUN8IKtXr OqyiTVt+fdOBL2MHGit5XRoe4ZZ/Bytwh4aShl6B9KFTe++lizCHLnVSS2HwKYf0D9TOuw yAacPU6FCFI0XmheHV7TNROsATirWqk= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=i0YvPFhM; spf=pass (imf24.hostedemail.com: domain of song@kernel.org designates 145.40.73.55 as permitted sender) smtp.mailfrom=song@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1715278514; a=rsa-sha256; cv=none; b=PKX1FOW99g3vBbV0XW3H9n1oiG9Gb+Auqz/M+oKJLbj3CZbhs1JT5DEE4pAfECoanCneJD 1Wxyw+pTZ6PLVop1tQKRo+LShD+Nl0Riycgwsr8Mz+q+9DVbKPgH0SzxlLp8oCGrrhAaZq CRR59BltzGqasZnOZPgayu3JcaY2Rqc= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 088A0CE1BF7 for ; Thu, 9 May 2024 18:15:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 19763C4AF0B for ; Thu, 9 May 2024 18:15:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1715278508; bh=AeL9LgunDsJxfxIGjvMY8yxKOYDFDU8ptsor2SXkmQ8=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=i0YvPFhMxAEoDP9/kkO19OxPU8u9h8h9BpK4MGUx/KLjTyZYKN7cIgnbhgR+qqrGy +cNNgWe+F8HSl5rIF2vAKIxCSb0RguEqnUyUxn8seFFhwPGV5oJQ3zBSuvc6zpJRSr BT4/7oGG9260QEfx7fmJwLNtjK9SPYguk6tCUYx2DlcpMc+N45Fz2hkE/9bh5EA0EY cNxTkDXfw27yK+dLqG4IAYB0ChA7o/w1s5ibIdYdhC1ZRhXP7msVk8rN4IPbQqIP0K 5SSW/lOpPHadp5/KoySLYlnhgLi5iRax1PSfVMBzdXWCsPfGJKGzE8F/mF33qmHZT1 RCo3KgIoyBO/Q== Received: by mail-lf1-f43.google.com with SMTP id 2adb3069b0e04-51f12ccff5eso1585670e87.1 for ; Thu, 09 May 2024 11:15:08 -0700 (PDT) X-Forwarded-Encrypted: i=1; AJvYcCXy/znbtVeXdEQmp20B6B7OauyCWwg2a+PIbxwnVckw0Bb/i2tc6rXS81w4NHXfR4ABuPIT+49q+DTuHPxOR/yY6tU= X-Gm-Message-State: AOJu0YxCZCu5Gp9H/Ln6PcZzh2jZ20j6kx4w8qfAP2uzfsFFYtpvoppq FPwy9Fg1w3D+uG61IsZYXrkPZo0/xkm03WWLg0BDLJ1xrTlRRUWy5HFHyIlMgOHnJKG/1861KYj pzb4BaDcV4JpMKHK9nlUYGF6YlKY= X-Google-Smtp-Source: AGHT+IFt25421bbw8fFN46Y8CarsZWqdOO3XV0VuKAoUNWeFEJP7rP8mzOmxLlm40OwmPpTAuur0swieiO37Qx8DQhk= X-Received: by 2002:a05:6512:318d:b0:51c:df1f:2edc with SMTP id 2adb3069b0e04-5220ff71e0bmr257422e87.2.1715278506372; Thu, 09 May 2024 11:15:06 -0700 (PDT) MIME-Version: 1.0 References: <9bf86b97-319f-4f58-b658-1fe3ed0b1993@nmtadam.samsung> <66396c1938726_2f63a29443@dwillia2-mobl3.amr.corp.intel.com.notmuch> <48a26545-5d41-47f4-95a6-e55395b63c66@nmtadam.samsung> In-Reply-To: From: Song Liu Date: Thu, 9 May 2024 11:14:54 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [LSF/MM/BPF TOPIC] CXL Development Discussions To: Luis Chamberlain , Paul E Luse Cc: Adam Manzanares , Dan Williams , "lsf-pc@lists.linux-foundation.org" , "jonathan.cameron@huawei.com" , "dave@stgolabs.net" , Fan Ni , "dave.jiang@intel.com" , "ira.weiny@intel.com" , "alison.schofield@intel.com" , "vishal.l.verma@intel.com" , "gourry.memverge@gmail.com" , "wj28.lee@gmail.com" , "rientjes@google.com" , "ruansy.fnst@fujitsu.com" , "shradha.t@samsung.com" , Jim Harris , "mhocko@suse.com" , "linux-mm@kvack.org" , "linux-cxl@vger.kernel.org" , "linux-pci@vger.kernel.org" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Rspamd-Queue-Id: 7D8BA180009 X-Rspamd-Server: rspam06 X-Stat-Signature: nzr8gkbtsjbbureb716frcpmsbdjnog1 X-HE-Tag: 1715278513-320453 X-HE-Meta: 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 zF10Id1m 4y7l/jn7vtRq7x0sS8S/2PUc9DOBC8Fwk7GmdeBwtfTz38llCbJCqnWxWoN6Y8J/lSwGV2hIq4ZVekOle+3YI+BLEO6uQK2s3AzfcrN+zfU0duzvkIJTwRFtEN2GK6SpZTAm/58d9ZCnNso+7xH8VVR3zL/phhOk3mxyLdrWD8Yh2I+LpdDYKTWf/LH742YKWiGq6WvfLTQsqFIR8Y4sh163ItzyxyVMJRyYg4HKQxNiykGILcA/36ottNhJgeQI+EahXOTeqYpAb4pUHFwugHHX8vTTsqfD/whT6cp7I5EvaRhe9EEM/6+aUjOLh5KAK6VA+rOoWsETY4IUDDeI3KD9b6L3TW8gCfcyCNazQDqu84AAJkd3zM4A1wM+X26FkfLCa X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, May 8, 2024 at 12:30=E2=80=AFPM Luis Chamberlain wrote: > > On Wed, May 08, 2024 at 06:38:36PM +0000, Adam Manzanares wrote: > > On Tue, May 07, 2024 at 11:50:54AM -0700, Luis Chamberlain wrote: > > > On Mon, May 06, 2024 at 04:47:37PM -0700, Dan Williams wrote: > > > > For testing I think it is an "all of the above plus hardware testin= g if > > > > possible" situation. My hope is to get to a point where CXL patchwo= rk > > > > lights up "S/W/F" columns with backend tests similar to NETDEV > > > > patchwork: > > > > > > > > https://patchwork.kernel.org/project/netdevbpf/list/ > > > > > > > > There are some initial discussions about how to do this likely we c= an > > > > grab some folks to discuss more. > > > > > > > > I think Paul and Song would be useful to have for this discussion. > > > > > > I think everyone and their aunt wants this to happen for their subsys= tem, > > > so a separate session to hear about how to get there would be nice. > > > > +1 > > Song, at last year's LSFMM you had mentioned the above work by ebpf folks > with patchwork integration. While it is great, I am not sure if folks > realize the amount of work required to get the above up and running and > then to maintain it. So I was wondering if perhaps at this year's LSFMM > if we can have a lightning talk or BoF to review just that and give > people clarity about the effort required to do get this going and > maintaining it. Its clear not only CXL folks would be interested, but > also filesystems and likely block layer folks. Would you be up to help > review that with folks with a lightning talk or BoF session? Would there > be anyone else who can talk about that? Paul and I have worked on using the CI framework used by the BPF subsystem with md/raid patches. We have a section at LSFMMBPF to talk about it (Tuesday 11:30). Thanks, Song