From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) (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 809A52727E6; Tue, 12 Aug 2025 21:46:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755035199; cv=none; b=hw5sibcHleHnVl5dMAuPcp8I3KHqBECSRFo4mgVMfkQ5bG+E+Y0nyE5vz9VJRgNQpqUl4CwOHMPeCP1HJRHvdJbKXiRcCP6FhodIGgIJ6irfVS/aF1MoUXgthAVM6b3OB0m02ffEvG9t8I6OkVdV+BvVagXIudUrfr7psIwt2PA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755035199; c=relaxed/simple; bh=Xf1H+ySZWWLVeLIhuFpndzvCpwSw16J2X0fr7aWCB9Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=b47SWECXaofir6XjJDWGxGcUFsgkStK5YA4526n51Kbx4AnKFBUfP3B51H96Fe+LwvONAmlsE86cruX/aPTDJHynQewkfWx3yhK38pUUy36HETmb2rmqbynTYymK54ZslqaPbow0FoF8c/5gPZIfBGTxW6Afd8UaAfUg4TciGM0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=HcLTrA74; arc=none smtp.client-ip=192.198.163.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="HcLTrA74" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1755035197; x=1786571197; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Xf1H+ySZWWLVeLIhuFpndzvCpwSw16J2X0fr7aWCB9Q=; b=HcLTrA74rh9cS+ydDr+3R0a2pJ2HWidsNMFMadkiWs9oAMFuGFig70hL 5JDr3bWF23sRKrIGwF6x+1lOYtgkOMttSiUlRr/sdj3Mvgr+qocN3KYKS oa4wIbigFShz+rvGrmksuMpbOu5D6RpXHrc8IuNC2YnjQIfv03kcMRxSj at6Y3CY3bIVefxgrsWdxnCTT/yTu+2BhptWsgDVf6UqZXwJPIgWg5VjVz fK+7TPHxLVsHrduwjvpxi5IFZT4jxNfgOKw7ZYis8Uxbgq6s1RovzWnLg P9j3irM7ikSN8RLsbXDXNGYfxoF9OldMh/etMb9N5RnbWp1jQmifk8ZfE A==; X-CSE-ConnectionGUID: EMWaUEMwTwKeNT3+uuZ+BQ== X-CSE-MsgGUID: G6sB21g3QjW0DtAtVdFhKQ== X-IronPort-AV: E=McAfee;i="6800,10657,11520"; a="57384627" X-IronPort-AV: E=Sophos;i="6.17,285,1747724400"; d="scan'208";a="57384627" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2025 14:46:37 -0700 X-CSE-ConnectionGUID: gK8oe98TSN6hKy7LLMf8gw== X-CSE-MsgGUID: G+wHHAdcSj2OiMRU++Awog== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,285,1747724400"; d="scan'208";a="166573218" Received: from anmitta2-mobl3.gar.corp.intel.com (HELO [10.247.119.148]) ([10.247.119.148]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2025 14:46:29 -0700 Message-ID: Date: Tue, 12 Aug 2025 14:46:24 -0700 Precedence: bulk X-Mailing-List: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V2 00/20] Add CXL LSA 2.1 format support in nvdimm and cxl pmem To: Neeraj Kumar , Dan Williams , Davidlohr Bueso , Jonathan Cameron , 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 References: <20250730121209.303202-1-s.neeraj@samsung.com> <1983025922.01754829002385.JavaMail.epsvc@epcpadp1new> Content-Language: en-US From: Dave Jiang In-Reply-To: <1983025922.01754829002385.JavaMail.epsvc@epcpadp1new> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/7/25 2:02 AM, Neeraj Kumar wrote: > 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. Hi Neeraj, It's on my review queue. Will try to get to it soon. Also, it seems that lore is still not happy your mailer. https://lore.kernel.org/linux-cxl/1983025922.01754829002385.JavaMail.epsvc@epcpadp1new/T/#t See all the [not found] threading. Just FYI. DJ > > > Regards, > Neeraj >