From: Jason Wang <jasowang@redhat.com>
To: qemu-devel@nongnu.org, mst@redhat.com, jasowang@redhat.com
Cc: eperezma@redhat.com, elic@nvidia.com, gdawar@xilinx.com,
lingshan.zhu@intel.com, lulu@redhat.com
Subject: [PATCH V5 03/10] vhost-vdpa: prepare for the multiqueue support
Date: Wed, 20 Oct 2021 12:55:53 +0800 [thread overview]
Message-ID: <20211020045600.16082-4-jasowang@redhat.com> (raw)
In-Reply-To: <20211020045600.16082-1-jasowang@redhat.com>
Unlike vhost-kernel, vhost-vdpa adapts a single device multiqueue
model. So we need to simply use virtqueue index as the vhost virtqueue
index. This is a must for multiqueue to work for vhost-vdpa.
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
hw/virtio/vhost-vdpa.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 67a3dcf6a5..40987188cf 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -544,8 +544,8 @@ static int vhost_vdpa_get_vq_index(struct vhost_dev *dev, int idx)
{
assert(idx >= dev->vq_index && idx < dev->vq_index + dev->nvqs);
- trace_vhost_vdpa_get_vq_index(dev, idx, idx - dev->vq_index);
- return idx - dev->vq_index;
+ trace_vhost_vdpa_get_vq_index(dev, idx, idx);
+ return idx;
}
static int vhost_vdpa_set_vring_ready(struct vhost_dev *dev)
--
2.25.1
next prev parent reply other threads:[~2021-10-20 4:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 4:55 [PATCH V5 00/10] vhost-vDPA multiqueue Jason Wang
2021-10-20 4:55 ` [PATCH V5 01/10] vhost-vdpa: open device fd in net_init_vhost_vdpa() Jason Wang
2021-10-20 4:55 ` [PATCH V5 02/10] vhost-vdpa: classify one time request Jason Wang
2021-10-20 4:55 ` Jason Wang [this message]
2021-10-20 4:55 ` [PATCH V5 04/10] vhost-vdpa: let net_vhost_vdpa_init() returns NetClientState * Jason Wang
2021-10-20 4:55 ` [PATCH V5 05/10] net: introduce control client Jason Wang
2021-10-20 4:55 ` [PATCH V5 06/10] vhost-net: control virtqueue support Jason Wang
2021-10-20 4:55 ` [PATCH V5 07/10] virtio-net: use "queue_pairs" instead of "queues" when possible Jason Wang
2021-10-20 4:55 ` [PATCH V5 08/10] vhost: record the last virtqueue index for the virtio device Jason Wang
2021-10-20 4:55 ` [PATCH V5 09/10] virtio-net: vhost control virtqueue support Jason Wang
2021-10-20 4:56 ` [PATCH V5 10/10] vhost-vdpa: multiqueue support Jason Wang
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