From: Dave Jiang <dave.jiang@intel.com>
To: Neeraj Kumar <s.neeraj@samsung.com>,
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
Subject: Re: [PATCH V4 17/17] cxl/pmem: Add CXL LSA 2.1 support in cxl pmem
Date: Wed, 19 Nov 2025 16:37:46 -0700 [thread overview]
Message-ID: <3c7daa78-7eb6-4fef-b68f-2bda9c489958@intel.com> (raw)
In-Reply-To: <20251119075255.2637388-18-s.neeraj@samsung.com>
On 11/19/25 12:52 AM, Neeraj Kumar wrote:
> Add support of CXL LSA 2.1 using NDD_REGION_LABELING flag. It creates
> cxl region based on region information parsed from LSA
>
> Signed-off-by: Neeraj Kumar <s.neeraj@samsung.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
> ---
> drivers/cxl/pmem.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/cxl/pmem.c b/drivers/cxl/pmem.c
> index a6eba3572090..5970d1792be8 100644
> --- a/drivers/cxl/pmem.c
> +++ b/drivers/cxl/pmem.c
> @@ -135,6 +135,7 @@ static int cxl_nvdimm_probe(struct device *dev)
> return rc;
>
> set_bit(NDD_LABELING, &flags);
> + set_bit(NDD_REGION_LABELING, &flags);
> set_bit(NDD_REGISTER_SYNC, &flags);
> set_bit(ND_CMD_GET_CONFIG_SIZE, &cmd_mask);
> set_bit(ND_CMD_GET_CONFIG_DATA, &cmd_mask);
> @@ -155,6 +156,7 @@ static int cxl_nvdimm_probe(struct device *dev)
> return -ENOMEM;
>
> dev_set_drvdata(dev, nvdimm);
> + create_pmem_region(nvdimm);
> return devm_add_action_or_reset(dev, unregister_nvdimm, nvdimm);
> }
>
prev parent reply other threads:[~2025-11-19 23:37 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20251119075306epcas5p22a87515de65a3c668275b394cdea83b0@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 00/17] Add CXL LSA 2.1 format support in nvdimm and " Neeraj Kumar
[not found] ` <CGME20251119075307epcas5p3007a9cb341efc3fa57b763e74caa35c4@epcas5p3.samsung.com>
2025-11-19 7:52 ` [PATCH V4 01/17] nvdimm/label: Introduce NDD_REGION_LABELING flag to set region label Neeraj Kumar
[not found] ` <CGME20251119075309epcas5p204a699babdf635f11f4b97d3ab8e8a13@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 02/17] nvdimm/label: CXL labels skip the need for 'interleave-set cookie' Neeraj Kumar
[not found] ` <CGME20251119075311epcas5p1af6f86ca65fd4a8452979e861b87a841@epcas5p1.samsung.com>
2025-11-19 7:52 ` [PATCH V4 03/17] nvdimm/label: Add namespace/region label support as per LSA 2.1 Neeraj Kumar
2025-11-19 15:51 ` Dave Jiang
2026-01-09 11:46 ` Neeraj Kumar
2025-12-17 14:31 ` Jonathan Cameron
2026-01-09 11:51 ` Neeraj Kumar
[not found] ` <CGME20251119075313epcas5p2db0de2ac270e4676b12730e10281ef83@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 04/17] nvdimm/label: Include region label in slot validation Neeraj Kumar
2025-11-19 16:54 ` Dave Jiang
[not found] ` <CGME20251119075315epcas5p2be6f51993152492f0dd64366863d70e2@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 05/17] nvdimm/label: Skip region label during ns label DPA reservation Neeraj Kumar
2025-11-19 17:01 ` Dave Jiang
2025-12-17 14:33 ` Jonathan Cameron
2026-01-09 11:53 ` Neeraj Kumar
[not found] ` <CGME20251119075317epcas5p41468e3c1602d89e634f48a7b67454663@epcas5p4.samsung.com>
2025-11-19 7:52 ` [PATCH V4 06/17] nvdimm/label: Preserve region label during namespace creation Neeraj Kumar
2025-11-19 18:07 ` Dave Jiang
[not found] ` <CGME20251119075319epcas5p2374c721a42a68cfb6f2b17b17c51c0ea@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 07/17] nvdimm/label: Add region label delete support Neeraj Kumar
2025-11-19 19:50 ` Dave Jiang
2026-01-09 11:56 ` Neeraj Kumar
2025-12-17 15:05 ` Jonathan Cameron
2026-01-09 11:58 ` Neeraj Kumar
[not found] ` <CGME20251119075321epcas5p19665a54028ce13d8c1af3f00c0834fc7@epcas5p1.samsung.com>
2025-11-19 7:52 ` [PATCH V4 08/17] nvdimm/label: Preserve cxl region information from region label Neeraj Kumar
2025-11-19 20:13 ` Dave Jiang
2026-01-09 12:03 ` Neeraj Kumar
2025-12-17 15:09 ` Jonathan Cameron
2026-01-09 12:06 ` Neeraj Kumar
[not found] ` <CGME20251119075323epcas5p369dea15a390bea0b3690e2a19533f956@epcas5p3.samsung.com>
2025-11-19 7:52 ` [PATCH V4 09/17] nvdimm/label: Export routine to fetch region information Neeraj Kumar
2025-11-19 20:18 ` Dave Jiang
2025-12-17 15:12 ` Jonathan Cameron
2026-01-09 12:09 ` Neeraj Kumar
[not found] ` <CGME20251119075324epcas5p1b0a7149ede962491e6be2d72d33f77eb@epcas5p1.samsung.com>
2025-11-19 7:52 ` [PATCH V4 10/17] cxl/mem: Refactor cxl pmem region auto-assembling Neeraj Kumar
2025-11-19 20:44 ` Dave Jiang
2026-01-09 12:10 ` Neeraj Kumar
[not found] ` <CGME20251119075327epcas5p29991fec95ca8a26503f457a30bb2429a@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 11/17] cxl/region: Add devm_cxl_pmem_add_region() for pmem region creation Neeraj Kumar
2025-11-19 21:33 ` Dave Jiang
2026-01-09 12:13 ` Neeraj Kumar
2025-12-17 15:28 ` Jonathan Cameron
2026-01-09 12:22 ` Neeraj Kumar
[not found] ` <CGME20251119075329epcas5p2e59df029313007c9adcf3a09ef0185cf@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 12/17] cxl/pmem: Preserve region information into nd_set Neeraj Kumar
2025-11-19 22:00 ` Dave Jiang
[not found] ` <CGME20251119075332epcas5p2d173f0373aa1ccdfcd4d75c68d5d09fd@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 13/17] cxl/pmem_region: Prep patch to accommodate pmem_region attributes Neeraj Kumar
2025-11-19 22:08 ` Dave Jiang
2025-12-17 15:35 ` Jonathan Cameron
2026-01-09 12:26 ` Neeraj Kumar
[not found] ` <CGME20251119075335epcas5p3a8fdc68301233f899d9041a300309fa2@epcas5p3.samsung.com>
2025-11-19 7:52 ` [PATCH V4 14/17] cxl/pmem_region: Introduce CONFIG_CXL_PMEM_REGION for core/pmem_region.c Neeraj Kumar
2025-11-19 22:24 ` Dave Jiang
2025-12-17 15:38 ` Jonathan Cameron
2026-01-09 12:29 ` Neeraj Kumar
[not found] ` <CGME20251119075337epcas5p2cb576137ca33d6304add4e1ba0b2bdc1@epcas5p2.samsung.com>
2025-11-19 7:52 ` [PATCH V4 15/17] cxl/pmem_region: Add sysfs attribute cxl region label updation/deletion Neeraj Kumar
2025-11-19 23:10 ` Dave Jiang
2026-01-09 12:31 ` Neeraj Kumar
2025-12-17 15:40 ` Jonathan Cameron
2026-01-09 12:32 ` Neeraj Kumar
[not found] ` <CGME20251119075339epcas5p3160bfa74362cc974e917fcc9b83ee112@epcas5p3.samsung.com>
2025-11-19 7:52 ` [PATCH V4 16/17] cxl/pmem_region: Create pmem region using information parsed from LSA Neeraj Kumar
2025-11-19 23:37 ` Dave Jiang
2026-01-09 12:37 ` Neeraj Kumar
[not found] ` <CGME20251119075340epcas5p42d0fa80388af654dff0da088fb3e978c@epcas5p4.samsung.com>
2025-11-19 7:52 ` [PATCH V4 17/17] cxl/pmem: Add CXL LSA 2.1 support in cxl pmem Neeraj Kumar
2025-11-19 23:37 ` Dave Jiang [this message]
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