linux-kernel - Re: [PATCH V3 01/20] nvdimm/label: Introduce NDD_REGION

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Message-ID: <20250917153538.00001483@huawei.com>
Date: Wed, 17 Sep 2025 15:35:38 +0100
From: Jonathan Cameron <jonathan.cameron@...wei.com>
To: Neeraj Kumar <s.neeraj@...sung.com>
CC: <linux-cxl@...r.kernel.org>, <nvdimm@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, <gost.dev@...sung.com>,
	<a.manzanares@...sung.com>, <vishak.g@...sung.com>, <neeraj.kernel@...il.com>
Subject: Re: [PATCH V3 01/20] nvdimm/label: Introduce NDD_REGION_LABELING
 flag to set region label

On Wed, 17 Sep 2025 18:59:21 +0530
Neeraj Kumar <s.neeraj@...sung.com> wrote:

> Prior to LSA 2.1 version, LSA contain only namespace labels. LSA 2.1
> introduced in CXL 2.0 Spec, which contain region label along with
> namespace label.
> 
> NDD_LABELING flag is used for namespace. Introduced NDD_REGION_LABELING
> flag for region label. Based on these flags nvdimm driver performs
> operation on namespace label or region label.
> 
> NDD_REGION_LABELING will be utilized by cxl driver to enable LSA 2.1
> region label support
> 
> Accordingly updated label index version
> 
> Signed-off-by: Neeraj Kumar <s.neeraj@...sung.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>