linux-kernel - Re: [PATCH 2/3] vDPA/ifcvf: enable Intel C5000X-PL virtio-net for vDPA

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Date:   Mon, 8 Mar 2021 10:53:25 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Zhu Lingshan <lingshan.zhu@...el.com>, mst@...hat.com,
        lulu@...hat.com
Cc:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] vDPA/ifcvf: enable Intel C5000X-PL virtio-net for
 vDPA


On 2021/3/5 10:19 下午, Zhu Lingshan wrote:
> This commit enabled Intel FPGA SmartNIC C5000X-PL virtio-net
> for vDPA.
> C5000X-PL vendor id 0x1AF4, device id 0x1000,
> subvendor id 0x8086, sub device id 0x0001
>
> To distinguish C5000X-PL from other ifcvf driven devices,
> the original ifcvf device is named "N3000".
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu@...el.com>
> ---
>   drivers/vdpa/ifcvf/ifcvf_base.h | 13 +++++++++----
>   drivers/vdpa/ifcvf/ifcvf_main.c | 13 +++++++++----
>   2 files changed, 18 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h
> index 64696d63fe07..794d1505d857 100644
> --- a/drivers/vdpa/ifcvf/ifcvf_base.h
> +++ b/drivers/vdpa/ifcvf/ifcvf_base.h
> @@ -18,10 +18,15 @@
>   #include <uapi/linux/virtio_config.h>
>   #include <uapi/linux/virtio_pci.h>
>   
> -#define IFCVF_VENDOR_ID		0x1AF4
> -#define IFCVF_DEVICE_ID		0x1041
> -#define IFCVF_SUBSYS_VENDOR_ID	0x8086
> -#define IFCVF_SUBSYS_DEVICE_ID	0x001A
> +#define N3000_VENDOR_ID		0x1AF4
> +#define N3000_DEVICE_ID		0x1041
> +#define N3000_SUBSYS_VENDOR_ID	0x8086
> +#define N3000_SUBSYS_DEVICE_ID	0x001A


Patch looks good, I wonder if it's better to do the rename separately.

Thanks


> +
> +#define C5000X_PL_VENDOR_ID		0x1AF4
> +#define C5000X_PL_DEVICE_ID		0x1000
> +#define C5000X_PL_SUBSYS_VENDOR_ID	0x8086
> +#define C5000X_PL_SUBSYS_DEVICE_ID	0x0001
>   
>   #define IFCVF_SUPPORTED_FEATURES \
>   		((1ULL << VIRTIO_NET_F_MAC)			| \
> diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
> index e501ee07de17..fd5befc5cbcc 100644
> --- a/drivers/vdpa/ifcvf/ifcvf_main.c
> +++ b/drivers/vdpa/ifcvf/ifcvf_main.c
> @@ -480,10 +480,15 @@ static void ifcvf_remove(struct pci_dev *pdev)
>   }
>   
>   static struct pci_device_id ifcvf_pci_ids[] = {
> -	{ PCI_DEVICE_SUB(IFCVF_VENDOR_ID,
> -		IFCVF_DEVICE_ID,
> -		IFCVF_SUBSYS_VENDOR_ID,
> -		IFCVF_SUBSYS_DEVICE_ID) },
> +	{ PCI_DEVICE_SUB(N3000_VENDOR_ID,
> +			 N3000_DEVICE_ID,
> +			 N3000_SUBSYS_VENDOR_ID,
> +			 N3000_SUBSYS_DEVICE_ID) },
> +	{ PCI_DEVICE_SUB(C5000X_PL_VENDOR_ID,
> +			 C5000X_PL_DEVICE_ID,
> +			 C5000X_PL_SUBSYS_VENDOR_ID,
> +			 C5000X_PL_SUBSYS_DEVICE_ID) },
> +
>   	{ 0 },
>   };
>   MODULE_DEVICE_TABLE(pci, ifcvf_pci_ids);