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[172.125.78.211]) by smtp.gmail.com with ESMTPSA id bg10-20020a056808178a00b00363ea5be014sm1364551oib.3.2023.01.24.10.26.15 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 24 Jan 2023 10:26:16 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.300.101.1.3\)) Subject: Re: [External] [LSF/MM/BPF BoF] Session for CXL memory From: "Viacheslav A.Dubeyko" In-Reply-To: <20230124101255.000016a5@Huawei.com> Date: Tue, 24 Jan 2023 10:26:04 -0800 Cc: lsf-pc@lists.linux-foundation.org, linux-cxl@vger.kernel.org, linux-mm@kvack.org, Dan Williams , Adam Manzanares Content-Transfer-Encoding: quoted-printable Message-Id: References: <38D49DA9-3C57-4951-8CBA-5D2BB0C40D9C@bytedance.com> <20230124101255.000016a5@Huawei.com> To: Jonathan Cameron X-Mailer: Apple Mail (2.3731.300.101.1.3) X-Rspam-User: X-Rspamd-Queue-Id: 9F80120006 X-Rspamd-Server: rspam01 X-Stat-Signature: wg64dqjgpz1484oaienq89sygcjuwaij X-HE-Tag: 1674584777-428243 X-HE-Meta: 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 s8+rezOz 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: > On Jan 24, 2023, at 2:12 AM, Jonathan Cameron = wrote: >=20 > On Fri, 6 Jan 2023 14:20:42 -0800 > "Viacheslav A.Dubeyko" wrote: >=20 >> CC: LSF/MM/BPF mailing list. Sorry, missed the list. >>=20 >>> On Jan 6, 2023, at 11:51 AM, Viacheslav A.Dubeyko = wrote: >>>=20 >>> Hello, >>>=20 >>> I believe CXL memory is hot topic now. I believe we have multiple = topics >>> for discussion. I personally would like to discuss CXL Fabric = Manager >>> and vision of FM architecture implementation.=20 >=20 > The fabric manager is rather disconnected from the host side of things = (all > out of band communications), so it would be a stretch to build a stand = alone > topic around that for LSF-MM. If we have the right people in the room = / > online, it would be good to discuss it (so part of a wider sessions on = CXL). > I'd love to get some traction before LSFMM though! Host aspects such = as > Dynamic Capacity Devices and sharing feel more LSFMM suitable. >=20 >>> I am going to share the topic in separate email. >=20 > Did I miss the email, or not sent yet? That topic is obscure enough = we definitely > need some background if anyone outside of CXL folk is going to have = any idea what > we are talking about. >=20 You missed nothing. :) I am still polishing the FM related topic. Sorry, = I was busy with other tasks.=20 >>> would like to suggest a special session for CXL memory >>> related topics. >>>=20 >>> How everybody feels about it? >=20 > A lot of the interesting bits currently strike me as rather = speculative > (no code), so sessions might not be as productive as shooting at an > implementation. That's less true of FM stuff as we really do need > an outline of an architecture plus some planning on that. >=20 > Could we have something to shoot at for other topics in the > time frame? maybe... >=20 I believe even discussion before implementation could make sense. Because, it provides the way to make the architecture/API vision more clear and understandable by everyone sometimes. :) Thanks, Slava.