netdev - Re: [PATCH v6 14/28] sfc: create type2 cxl memdev

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Message-ID: <20241203142711.GE778635@gmail.com>
Date: Tue, 3 Dec 2024 14:27:11 +0000
From: Martin Habets <habetsm.xilinx@...il.com>
To: alejandro.lucero-palau@....com
Cc: linux-cxl@...r.kernel.org, netdev@...r.kernel.org,
	dan.j.williams@...el.com, martin.habets@...inx.com,
	edward.cree@....com, davem@...emloft.net, kuba@...nel.org,
	pabeni@...hat.com, edumazet@...gle.com, dave.jiang@...el.com,
	Alejandro Lucero <alucerop@....com>
Subject: Re: [PATCH v6 14/28] sfc: create type2 cxl memdev

On Mon, Dec 02, 2024 at 05:12:08PM +0000, alejandro.lucero-palau@....com wrote:
> 
> From: Alejandro Lucero <alucerop@....com>
> 
> Use cxl API for creating a cxl memory device using the type2
> cxl_dev_state struct.
> 
> Signed-off-by: Alejandro Lucero <alucerop@....com>

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

> ---
>  drivers/net/ethernet/sfc/efx_cxl.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/net/ethernet/sfc/efx_cxl.c b/drivers/net/ethernet/sfc/efx_cxl.c
> index aa65f227c80d..d03fa9f9c421 100644
> --- a/drivers/net/ethernet/sfc/efx_cxl.c
> +++ b/drivers/net/ethernet/sfc/efx_cxl.c
> @@ -95,10 +95,19 @@ int efx_cxl_init(struct efx_probe_data *probe_data)
>  	 */
>  	cxl_set_media_ready(cxl->cxlds);
>  
> +	cxl->cxlmd = devm_cxl_add_memdev(&pci_dev->dev, cxl->cxlds);
> +	if (IS_ERR(cxl->cxlmd)) {
> +		pci_err(pci_dev, "CXL accel memdev creation failed");
> +		rc = PTR_ERR(cxl->cxlmd);
> +		goto err3;
> +	}
> +
>  	probe_data->cxl = cxl;
>  
>  	return 0;
>  
> +err3:
> +	cxl_release_resource(cxl->cxlds, CXL_RES_RAM);
>  err2:
>  	kfree(cxl->cxlds);
>  err1:
> -- 
> 2.17.1
> 
>