From: Zhu Lingshan <lingshan.zhu@intel.com>
Date: Fri, 2 Feb 2024 16:39:03 +0000 (+0800)
Subject: virtio_vdpa: create vqs with the actual size
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=273ae08fa03f907d09d6fe815a3982a7298ba804;p=people%2Faperard%2Flinux.git

virtio_vdpa: create vqs with the actual size

The size of a virtqueue is a per vq configuration,
this commit allows virtio_vdpa to create
virtqueues with the actual size of a specific
vq size that supported by the backend device.

Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-9-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

diff --git a/drivers/virtio/virtio_vdpa.c b/drivers/virtio/virtio_vdpa.c
index 8d63e5923d245..e803db0da307a 100644
--- a/drivers/virtio/virtio_vdpa.c
+++ b/drivers/virtio/virtio_vdpa.c
@@ -183,8 +183,11 @@ virtio_vdpa_setup_vq(struct virtio_device *vdev, unsigned int index,
 	info = kmalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return ERR_PTR(-ENOMEM);
+	if (ops->get_vq_size)
+		max_num = ops->get_vq_size(vdpa, index);
+	else
+		max_num = ops->get_vq_num_max(vdpa);
 
-	max_num = ops->get_vq_num_max(vdpa);
 	if (max_num == 0) {
 		err = -ENOENT;
 		goto error_new_virtqueue;