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From: Martin Habets <habetsm.xilinx@gmail.com>
To: alejandro.lucero-palau@amd.com
Cc: linux-cxl@vger.kernel.org, netdev@vger.kernel.org,
	dan.j.williams@intel.com, martin.habets@xilinx.com,
	edward.cree@amd.com, davem@davemloft.net, kuba@kernel.org,
	pabeni@redhat.com, edumazet@google.com, dave.jiang@intel.com,
	Alejandro Lucero <alucerop@amd.com>
Subject: Re: [PATCH v6 25/28] sfc: specify no dax when cxl region is created
Date: Tue, 3 Dec 2024 14:38:49 +0000	[thread overview]
Message-ID: <20241203143849.GI778635@gmail.com> (raw)
In-Reply-To: <20241202171222.62595-26-alejandro.lucero-palau@amd.com>

On Mon, Dec 02, 2024 at 05:12:19PM +0000, alejandro.lucero-palau@amd.com wrote:
> 
> From: Alejandro Lucero <alucerop@amd.com>
> 
> The CXL memory should not be used by the host in any case except for
> what the driver allows. Tell the cxl core to not create a DAX device
> using the avoid dax at region creation time.
> 
> Signed-off-by: Alejandro Lucero <alucerop@amd.com>

Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>

> ---
>  drivers/net/ethernet/sfc/efx_cxl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c
> index 3e44c31daf36..71b32fc48ca7 100644
> --- a/drivers/net/ethernet/sfc/efx_cxl.c
> +++ b/drivers/net/ethernet/sfc/efx_cxl.c
> @@ -128,7 +128,7 @@ int efx_cxl_init(struct efx_probe_data *probe_data)
>  		goto err3;
>  	}
>  
> -	cxl->efx_region = cxl_create_region(cxl->cxlrd, cxl->cxled);
> +	cxl->efx_region = cxl_create_region(cxl->cxlrd, cxl->cxled, true);
>  	if (!cxl->efx_region) {
>  		pci_err(pci_dev, "CXL accel create region failed");
>  		rc = PTR_ERR(cxl->efx_region);
> -- 
> 2.17.1
> 
> 

  reply	other threads:[~2024-12-03 14:39 UTC|newest]

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-02 17:11 [PATCH v6 00/28] cxl: add type2 device basic support alejandro.lucero-palau
2024-12-02 17:11 ` [PATCH v6 01/28] " alejandro.lucero-palau
2024-12-02 17:11 ` [PATCH v6 02/28] sfc: add cxl support using new CXL API alejandro.lucero-palau
2024-12-03 14:21   ` Martin Habets
2024-12-03 20:33   ` Edward Cree
2024-12-04  9:30     ` Alejandro Lucero Palau
2024-12-02 17:11 ` [PATCH v6 03/28] cxl: add capabilities field to cxl_dev_state and cxl_port alejandro.lucero-palau
2024-12-03  4:50   ` kernel test robot
2024-12-03 22:24   ` Fan Ni
2024-12-02 17:11 ` [PATCH v6 04/28] cxl/pci: add check for validating capabilities alejandro.lucero-palau
2024-12-03 18:37   ` Zhi Wang
2024-12-03 18:55     ` Alejandro Lucero Palau
2024-12-03 22:55   ` Fan Ni
2024-12-04  8:58     ` Alejandro Lucero Palau
2024-12-02 17:11 ` [PATCH v6 05/28] cxl: move pci generic code alejandro.lucero-palau
2024-12-03 22:59   ` Fan Ni
2024-12-02 17:12 ` [PATCH v6 06/28] cxl: add function for type2 cxl regs setup alejandro.lucero-palau
2024-12-04  2:27   ` Fan Ni
2024-12-02 17:12 ` [PATCH v6 07/28] sfc: use cxl api for regs setup and checking alejandro.lucero-palau
2024-12-03 14:24   ` Martin Habets
2024-12-03 18:41   ` Zhi Wang
2024-12-02 17:12 ` [PATCH v6 08/28] cxl: add functions for resource request/release by a driver alejandro.lucero-palau
2024-12-03 18:42   ` Zhi Wang
2024-12-06  3:35   ` Fan Ni
2024-12-06  4:00   ` Kalesh Anakkur Purayil
2024-12-09  9:07     ` Alejandro Lucero Palau
2024-12-02 17:12 ` [PATCH v6 09/28] sfc: request cxl ram resource alejandro.lucero-palau
2024-12-03 14:25   ` Martin Habets
2024-12-06  4:10   ` Fan Ni
2024-12-06  4:28   ` Kalesh Anakkur Purayil
2024-12-09  9:12     ` Alejandro Lucero Palau
2024-12-02 17:12 ` [PATCH v6 10/28] cxl: harden resource_contains checks to handle zero size resources alejandro.lucero-palau
2024-12-02 17:12 ` [PATCH v6 11/28] cxl: add function for setting media ready by a driver alejandro.lucero-palau
2024-12-02 17:12 ` [PATCH v6 12/28] sfc: set cxl media ready alejandro.lucero-palau
2024-12-03 14:26   ` Martin Habets
2024-12-02 17:12 ` [PATCH v6 13/28] cxl: prepare memdev creation for type2 alejandro.lucero-palau
2024-12-06 16:56   ` Fan Ni
2024-12-09  9:14     ` Alejandro Lucero Palau
2024-12-02 17:12 ` [PATCH v6 14/28] sfc: create type2 cxl memdev alejandro.lucero-palau
2024-12-03 14:27   ` Martin Habets
2024-12-06 17:12   ` Fan Ni
2024-12-02 17:12 ` [PATCH v6 15/28] cxl: define a driver interface for HPA free space enumeration alejandro.lucero-palau
2024-12-03  9:44   ` kernel test robot
2024-12-06 19:48   ` Fan Ni
2024-12-09  9:22     ` Alejandro Lucero Palau
2024-12-02 17:12 ` [PATCH v6 16/28] sfc: obtain root decoder with enough HPA free space alejandro.lucero-palau
2024-12-03  2:34   ` kernel test robot
2024-12-03 14:34   ` Martin Habets
2024-12-03 15:24     ` Alejandro Lucero Palau
2024-12-06 21:36   ` Fan Ni
2024-12-09  9:24     ` Alejandro Lucero Palau
2024-12-02 17:12 ` [PATCH v6 17/28] cxl: define a driver interface for DPA allocation alejandro.lucero-palau
2024-12-02 17:12 ` [PATCH v6 18/28] sfc: get endpoint decoder alejandro.lucero-palau
2024-12-03 14:35   ` Martin Habets
2024-12-09 17:39   ` Fan Ni
2024-12-02 17:12 ` [PATCH v6 19/28] cxl: make region type based on endpoint type alejandro.lucero-palau
2024-12-09 18:03   ` Fan Ni
2024-12-02 17:12 ` [PATCH v6 20/28] cxl/region: factor out interleave ways setup alejandro.lucero-palau
2024-12-02 17:12 ` [PATCH v6 21/28] cxl/region: factor out interleave granularity setup alejandro.lucero-palau
2024-12-02 17:12 ` [PATCH v6 22/28] cxl: allow region creation by type2 drivers alejandro.lucero-palau
2024-12-02 17:12 ` [PATCH v6 23/28] sfc: create cxl region alejandro.lucero-palau
2024-12-03 14:37   ` Martin Habets
2024-12-03 15:25     ` Alejandro Lucero Palau
2024-12-04  8:33       ` Martin Habets
2024-12-02 17:12 ` [PATCH v6 24/28] cxl: add region flag for precluding a device memory to be used for dax alejandro.lucero-palau
2024-12-03 18:50   ` Zhi Wang
2024-12-02 17:12 ` [PATCH v6 25/28] sfc: specify no dax when cxl region is created alejandro.lucero-palau
2024-12-03 14:38   ` Martin Habets [this message]
2024-12-02 17:12 ` [PATCH v6 26/28] cxl: add function for obtaining region range alejandro.lucero-palau
2024-12-03 18:53   ` Zhi Wang
2024-12-09  9:48     ` Alejandro Lucero Palau
2024-12-09 16:29       ` Zhi Wang
2024-12-09 17:47         ` Alejandro Lucero Palau
2024-12-02 17:12 ` [PATCH v6 27/28] sfc: update MCDI protocol headers alejandro.lucero-palau
2024-12-03 14:41   ` Martin Habets
2024-12-03 17:38   ` Edward Cree
2024-12-02 17:12 ` [PATCH v6 28/28] sfc: support pio mapping based on cxl alejandro.lucero-palau
2024-12-03 14:52   ` Martin Habets
2024-12-03 15:30     ` Alejandro Lucero Palau

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