linux-kernel - Re: [PATCH V3 3/3] vDPA/ifcvf: get_config_size should return dev specific config size

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <c1afa91f-b0a1-9ea8-8827-a0920a26f16e@redhat.com>
Date:   Mon, 19 Apr 2021 11:17:40 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     Zhu Lingshan <lingshan.zhu@...el.com>, mst@...hat.com,
        lulu@...hat.com, sgarzare@...hat.com
Cc:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V3 3/3] vDPA/ifcvf: get_config_size should return dev
 specific config size


在 2021/4/16 下午3:16, Zhu Lingshan 写道:
> get_config_size() should return the size based on the decected
> device type.
>
> Signed-off-by: Zhu Lingshan <lingshan.zhu@...el.com>


Acked-by: Jason Wang <jasowang@...hat.com>


> ---
>   drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++++++++++++++++++-
>   1 file changed, 18 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
> index 376b2014916a..3b6f7862dbb8 100644
> --- a/drivers/vdpa/ifcvf/ifcvf_main.c
> +++ b/drivers/vdpa/ifcvf/ifcvf_main.c
> @@ -356,7 +356,24 @@ static u32 ifcvf_vdpa_get_vq_align(struct vdpa_device *vdpa_dev)
>   
>   static size_t ifcvf_vdpa_get_config_size(struct vdpa_device *vdpa_dev)
>   {
> -	return sizeof(struct virtio_net_config);
> +	struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev);
> +	struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
> +	struct pci_dev *pdev = adapter->pdev;
> +	size_t size;
> +
> +	switch (vf->dev_type) {
> +	case VIRTIO_ID_NET:
> +		size = sizeof(struct virtio_net_config);
> +		break;
> +	case VIRTIO_ID_BLOCK:
> +		size = sizeof(struct virtio_blk_config);
> +		break;
> +	default:
> +		size = 0;
> +		IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", vf->dev_type);
> +	}
> +
> +	return size;
>   }
>   
>   static void ifcvf_vdpa_get_config(struct vdpa_device *vdpa_dev,