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From: Stefano Garzarella <sgarzare@redhat.com>
To: Zhu Lingshan <lingshan.zhu@intel.com>
Cc: jasowang@redhat.com, mst@redhat.com, lulu@redhat.com,
	virtualization@lists.linux-foundation.org,
	netdev@vger.kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH V3 3/3] vDPA/ifcvf: get_config_size should return dev specific config size
Date: Fri, 16 Apr 2021 10:47:38 +0200
Message-ID: <20210416084738.k2xr7m6rdhrvoqr2@steredhat> (raw)
In-Reply-To: <20210416071628.4984-4-lingshan.zhu@intel.com>

On Fri, Apr 16, 2021 at 03:16:28PM +0800, Zhu Lingshan wrote:
>get_config_size() should return the size based on the decected
>device type.
>
>Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
>---
> drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

>
>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,
>-- 
>2.27.0
>


  reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16  7:16 [PATCH V3 0/3] vDPA/ifcvf: enables Intel C5000X-PL virtio-blk Zhu Lingshan
2021-04-16  7:16 ` [PATCH V3 1/3] vDPA/ifcvf: deduce VIRTIO device ID when probe Zhu Lingshan
2021-04-19  3:15   ` Jason Wang
2021-04-16  7:16 ` [PATCH V3 2/3] vDPA/ifcvf: enable Intel C5000X-PL virtio-block for vDPA Zhu Lingshan
2021-04-16  8:47   ` Stefano Garzarella
2021-04-19  3:16   ` Jason Wang
2021-04-16  7:16 ` [PATCH V3 3/3] vDPA/ifcvf: get_config_size should return dev specific config size Zhu Lingshan
2021-04-16  8:47   ` Stefano Garzarella [this message]
2021-04-19  3:17   ` Jason Wang

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