From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailout4.samsung.com (mailout4.samsung.com [203.254.224.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 705F424886C for ; Sun, 10 Aug 2025 12:30:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=203.254.224.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754829014; cv=none; b=Rtzk3tlIbDa0EIhjJEFcpQK3ngtH54MNJBEIXxsHJAxLkkufaT8Esvt2zLdXU0RUkwPYcr4t8PFC0kYs5wXVJMruk+bN1ZUNHwFai1guLCRQ7gJNPrwP4zBvtKvSBrU8eaL+uKut4DuDb/iNxgdhW24qTeBjomi4uMZ9TnkbmaM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754829014; c=relaxed/simple; bh=sEDCDrE6UaiWIhMD6cJ0TnbRfom7RnarYsp+lhz57OY=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:In-Reply-To: Content-Type:References; b=k/S1NUW7DG/BNWVSsfw5GiOixfnLjHHpAeGUWYrBopO5uKKQmCsT7mRwg1ToJh8z2sVsyJ7KJ0m115duCW5fGXW7SboUMMAtcNTYVedvHJ3m70g942Jk6I3Ij47NdJGs9cVLXjNOaipvN7TyrmlvRRkNUGHpxaLKZ23t8xj45fo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com; spf=pass smtp.mailfrom=samsung.com; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b=IQ5gOUvy; arc=none smtp.client-ip=203.254.224.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=samsung.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=samsung.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="IQ5gOUvy" Received: from epcas5p3.samsung.com (unknown [182.195.41.41]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20250810123003epoutp0413fc7276d3f40251ca786d314d1ce1bd~aZ65iY8_r2828528285epoutp04V for ; Sun, 10 Aug 2025 12:30:03 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20250810123003epoutp0413fc7276d3f40251ca786d314d1ce1bd~aZ65iY8_r2828528285epoutp04V DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1754829003; bh=sEDCDrE6UaiWIhMD6cJ0TnbRfom7RnarYsp+lhz57OY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=IQ5gOUvyFcZGwtSgMbiGJAoyFQo4ikbl2C/3Zdgt3kA1tkgR2apmqhdKWiz8jtkVO s4RNC0VM/Zy0VFoQRRMZjyKrDCHzx+Nts5DftITYTgAIgmd/f2MR64E8wDCiu4c8xW inl1fVkfDsa1rY5cqrhQn1PN6NKXoVZ99UdGL5qc= Received: from epsnrtp02.localdomain (unknown [182.195.42.154]) by epcas5p1.samsung.com (KnoxPortal) with ESMTPS id 20250810123002epcas5p148fc2b449517f564baddc20b05aa29b4~aZ64j-aql1995119951epcas5p1K; Sun, 10 Aug 2025 12:30:02 +0000 (GMT) Received: from epcpadp1new (unknown [182.195.40.141]) by epsnrtp02.localdomain (Postfix) with ESMTP id 4c0HCZ2tRZz2SSKX; Sun, 10 Aug 2025 12:30:02 +0000 (GMT) Received: from epsmtip1.samsung.com (unknown [182.195.34.30]) by epcas5p2.samsung.com (KnoxPortal) with ESMTPA id 20250807090254epcas5p22d81d318908416ca3d5401b53bb7d2c0~ZcKLNR8ps0698406984epcas5p2K; Thu, 7 Aug 2025 09:02:54 +0000 (GMT) Received: from test-PowerEdge-R740xd (unknown [107.99.41.79]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20250807090252epsmtip1db8a8d52c1ea56c6cc1cc33ef1833a91~ZcKJXFbU30745807458epsmtip1p; Thu, 7 Aug 2025 09:02:52 +0000 (GMT) Date: Thu, 7 Aug 2025 14:32:39 +0530 From: Neeraj Kumar To: Dan Williams , Davidlohr Bueso , Jonathan Cameron , Dave Jiang , Ira Weiny , Alison Schofield , Vishal Verma , linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, linux-kernel@vger.kernel.org, gost.dev@samsung.com Cc: a.manzanares@samsung.com, vishak.g@samsung.com, neeraj.kernel@gmail.com, cpgs@samsung.com Subject: Re: [PATCH V2 00/20] Add CXL LSA 2.1 format support in nvdimm and cxl pmem Message-ID: <1983025922.01754829002385.JavaMail.epsvc@epcpadp1new> Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <20250730121209.303202-1-s.neeraj@samsung.com> X-CMS-MailID: 20250807090254epcas5p22d81d318908416ca3d5401b53bb7d2c0 X-Msg-Generator: CA Content-Type: multipart/mixed; boundary="----CDBSwZz52MZUMeM1Rx6lI.cEW_5b_YZAAzr3v09AM7rvldzc=_76dae_" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P X-CPGSPASS: Y X-Hop-Count: 3 X-CMS-RootMailID: 20250730121221epcas5p3ffb9e643af6b8ae07cfccf0bdee90e37 References: <20250730121209.303202-1-s.neeraj@samsung.com> ------CDBSwZz52MZUMeM1Rx6lI.cEW_5b_YZAAzr3v09AM7rvldzc=_76dae_ Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Disposition: inline On 30/07/25 05:41PM, Neeraj Kumar wrote: >Introduction: >============= >CXL Persistent Memory (Pmem) devices region, namespace and content must be >persistent across system reboot. In order to achieve this persistency, it >uses Label Storage Area (LSA) to store respective metadata. During system >reboot, stored metadata in LSA is used to bring back the region, namespace >and content of CXL device in its previous state. >CXL specification provides Get_LSA (4102h) and Set_LSA (4103h) mailbox >commands to access the LSA area. nvdimm driver is using same commands to >get/set LSA data. > Hi Jonathan, Dave and Ira I have addressed the review comments of V1 patch-set and sent out this V2 Patch-set. 0-Day Kernel Test bot has reported couple of minor issues which I will address in next series. Can you please have a look at this V2 series and let me know your feedback. Regards, Neeraj ------CDBSwZz52MZUMeM1Rx6lI.cEW_5b_YZAAzr3v09AM7rvldzc=_76dae_ Content-Type: text/plain; charset="utf-8" ------CDBSwZz52MZUMeM1Rx6lI.cEW_5b_YZAAzr3v09AM7rvldzc=_76dae_--